Backend Developer Jobs in Seattle

Backend Developer jobs in Seattle hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $256,757/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

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AI/ML
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TikTok

tiktok.com
tiktok.com • HQ: Culver City, United States • Social Networks • Video & Photo Sharing • Social Commerce • Advertising • 1001-5000 employees • Est. 2016 • Trust B • Hiring 3467, 86 new
HQ: Culver City, United States • Social Networks • Video & Photo Sharing • Social Commerce • Advertising • 1001-5000 employees • Est. 2016 • Trust B • Hiring 3467, 86 new
TikTok is a short-form video platform owned by the Chinese technology group ByteDance and launched internationally in 2016, growing further after the 2018 merger with the lip-sync app Musical.ly. Its recommendation feed surfaces content by engagement signals rather than social graph, which lets new creators reach large audiences quickly and made the app one of the most downloaded in the world. The company runs dual operating hubs in Singapore and Los Angeles and has built an advertising business, a live streaming economy and the TikTok Shop commerce marketplace on top of the video feed.
Blake Chandlee · President, Global Business Solutions · decision-maker
Shou Zi Chew · Chief Executive Officer · decision-maker
Zhang Yiming · Founder of ByteDance · founder
Careers mailbox is known
Verified live · 1 hour ago Visa sponsor 15 days ago Hiring now · 90%

Backend Software Engineer, Global E-commerce - Seller Business - Global E-Commerce US

≈ $170k – $337k per year (Estimated) • Middle • 3+ years exp • In office (Seattle, United States) • Bachelor's Degree • Full-Time • Middle
Scala
Go
C++
Java
Python
Apply
Verified live · 1 hour ago Visa sponsor 28 days ago Hiring now · 90%

Senior Fullstack Software Engineer, Global E-commerce User Growth

≈ $207k – $381k per year (Estimated) • Senior • 5+ years exp • In office (Seattle, United States) • Bachelor's Degree • Full-Time • Senior
Go
Node JS
Java
Python
JavaScript
AI/ML
Machine Learning
Agentic Workflows
AI Agents
Frontend
GraphQL
DevOps
Rest API
+2
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Verified live · 1 hour ago Visa sponsor 2 months ago Likely open · 48%

Software Engineer Intern (Recommendation Architecture, Feeds Infrastructure) - 2027 Fall

Intern • In office (Seattle, United States) • Bachelor's Degree • Internship • Intern
Go
C++
Java
AI/ML
Recommender Systems
Machine Learning
Apply

RareCyte

rarecyte.com
rarecyte.com • HQ: Seattle, United States • Molecular Diagnostics • Bioinformatics • 201-500 employees • Est. 2009 • Hiring 2, 1 new
HQ: Seattle, United States • Molecular Diagnostics • Bioinformatics • 201-500 employees • Est. 2009 • Hiring 2, 1 new
RareCyte, Inc. is a Seattle-based precision biology company developing advanced platforms and services for spatial biology and liquid biopsy. Its Orion spatial proteomics platform enables single-round high-plex immunofluorescence imaging for translational and clinical research.
Stephen Reichenbach · Executive Officer · decision-maker
Joseph Victor Jr. · Executive Officer, Director · decision-maker
Jim Cooper · Executive Officer · decision-maker
Eric Kaldjian · Executive Officer · decision-maker
No careers mailbox known
Verified live · 1 hour ago 15 days ago Hiring now · 75%

Senior Software Engineer

$150k – $170k per year • Equity • Senior • 5+ years exp • In office (Seattle, United States) • Bachelor's Degree • Full-Time • Senior
TypeScript
JavaScript
Python
Python
Django
Celery
Django REST Framework
Databases
Redis
PostgreSQL
AI/ML
OpenCV
SciPy
NumPy
Frontend
Vue.js
Tailwind CSS
Pinia
DevOps
WebSockets
Docker
Linux
Azure
CI/CD
+11
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Block

block.xyz
block.xyz • HQ: Oakland, United States • Buy Now, Pay Later • POS Systems • Financial Software & Embedded Finance • Payment Processing & Gateways • Cryptocurrencies • 1001-5000 employees • Est. 2009 • Trust A • Hiring 199, 13 new
HQ: Oakland, United States • Buy Now, Pay Later • POS Systems • Financial Software & Embedded Finance • Payment Processing & Gateways • Cryptocurrencies • 1001-5000 employees • Est. 2009 • Trust A • Hiring 199, 13 new
Block is an American financial technology company based in Oakland, California, that builds payment, banking and commerce products for consumers and merchants under brands including Square, Cash App, Afterpay, TIDAL, Bitkey and Proto. Founded in 2009 by Jack Dorsey as Square, the company is listed on the New York Stock Exchange, runs point-of-sale and payment processing for millions of sellers and operates the Afterpay buy now, pay later service. It hires software, security and data engineers, product managers, sales and account executives, risk and compliance specialists and operations staff across the US, Canada, Australia, the UK and Japan.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 3 hours ago 15 days ago Hiring now · 89%

Staff Software Engineer, Payments Acquiring

$264k – $395k per year • Staff+ • Seattle • Remote (United States, PT hours) • Staff
AI Agents
Tokenization
Web3
Bitcoin
Apply
Top 25% payVerified live · 3 hours ago 1 month ago Likely open · 48%

Staff Software Engineer, Financial Platform - Issuing

$264k – $395k per year • Staff+ • Seattle • Remote (United States) • Staff
Bitcoin
Apply
gm.com • HQ: Detroit, United States • Automotive Manufacturing • 1001-5000 employees • Est. 1908 • NYSE: GM • Trust B • Hiring 704, 112 new
HQ: Detroit, United States • Automotive Manufacturing • 1001-5000 employees • Est. 1908 • NYSE: GM • Trust B • Hiring 704, 112 new
General Motors is an American automaker headquartered in Detroit, Michigan, that designs, builds and sells cars, trucks and crossovers under the Chevrolet, Buick, GMC and Cadillac brands, along with electric vehicles, batteries, software and driver assistance systems. Founded in 1908, it is publicly listed and runs more than 150 US facilities including the Warren Technical Center and Milford Proving Ground, plus operations in Canada, Mexico, Brazil, Israel, India and other countries, as well as GM Defense. It hires software and AI engineers, battery cell and structural engineers, product managers, data analysts and manufacturing staff.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 1 day ago Visa sponsor 15 days ago Fading · 27%

Principal Software Engineer – Core OS, Vehicle Compute

$216k – $450k per year • Lead • Hybrid (Mountain View, Seattle, United States) • Relocation • Bachelor's Degree • Full-Time • Principal
GitHub
Git
Linux
CI/CD
KVM
Xen
Apply
Top 25% payVerified live · 1 day ago Visa sponsor 15 days ago Fading · 29%

Staff Software Engineer – Core OS, Vehicle Compute

$160k – $330k per year • Staff+ • 10+ years exp • Hybrid (Mountain View, Seattle, United States) • Relocation • Bachelor's Degree • Full-Time • Staff
C++
Python
Rust
DevOps
GitHub
Git
Linux
CI/CD
Podman
KVM
Xen
Unix
+3
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Open 177 daysVerified live · 1 day ago 6 months ago Long shot · 5%

Software Engineer - Virtual Test Platforms

≈ $160k – $295k per year (Estimated) • Senior • 7+ years exp • Hybrid (Seattle, United States) • Relocation • Bachelor's Degree • Full-Time • Senior
Rust
C++
DevOps
QEMU
CI/CD
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ExtraHop

extrahop.com
extrahop.com • HQ: Seattle, United States • Cybersecurity AI • Security Operations • Threat Intelligence • Network Security • 201-500 employees • Est. 2007 • Hiring 26, 1 new
HQ: Seattle, United States • Cybersecurity AI • Security Operations • Threat Intelligence • Network Security • 201-500 employees • Est. 2007 • Hiring 26, 1 new
ExtraHop is a company that specializes in providing security and network management solutions, leveraging real-time analytics to help organizations detect and respond to cyber threats. By utilizing machine learning and other advanced technologies, ExtraHop offers deep visibility into IT infrastructure, ensuring optimal performance and robust security. Their platform aids enterprises in monitoring traffic patterns and identifying unusual activities to protect against data breaches and other cyber risks.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 2 hours ago 15 days ago Hiring now · 90%

Senior Software Engineer | Cloud

$160k – $180k per year • Senior • 6+ years exp • Seattle • Remote (United States) • Bachelor's Degree • Nationals only • Senior
Go
Python
JavaScript
AI/ML
Machine Learning
Frontend
npm
DevOps
Helm
Amazon EKS
Amazon EC2
Amazon S3
IAM
Terraform
Kubernetes
CI/CD
AWS
Consul
Packer
Self-Healing
Prometheus
Grafana
Cryptography
Vault
+12
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Verified live · 2 hours ago 16 days ago Hiring now · 90%

Software Engineer III | Framework

$150k – $163k per year • Middle • 4+ years exp • Seattle • Remote (United States) • Bachelor's Degree • Middle
C++
JavaScript
Python
AI/ML
Time Series
Machine Learning
Frontend
npm
DevOps
Linux
AWS
Management
Agile
+1
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Top 25% payVerified live · 2 hours ago 4 months ago Long shot · 23%

Senior Software Engineer | Middleware

$160k – $180k per year • Senior • 7+ years exp • Seattle • Remote (United States) • Bachelor's Degree • Senior
Go
TypeScript
JavaScript
SQL
Python
Python
FastAPI
Django
Databases
PostgreSQL
AI/ML
Machine Learning
Frontend
npm
DevOps
Amazon EKS
Amazon EC2
Amazon S3
IAM
Terraform
Rest API
GCP
Kubernetes
Azure
AWS
+12
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UST

ust.com
ust.com • HQ: Aliso Viejo, United States • Information Technology • IT Outsourcing & Dedicated Teams • IT Consulting & Digital Transformation • 5000+ employees • Est. 1998 • Trust B • Hiring 742, 55 new
HQ: Aliso Viejo, United States • Information Technology • IT Outsourcing & Dedicated Teams • IT Consulting & Digital Transformation • 5000+ employees • Est. 1998 • Trust B • Hiring 742, 55 new
UST is a leading global digital technology and transformation services company that provides innovative solutions to enterprise clients worldwide. Headquartered in Aliso Viejo, California, the firm specializes in digital consulting, cloud infrastructure, product engineering, and cybersecurity. Founded in 1998, it partners with major organizations across diverse industries to accelerate technological modernization and build agile, scalable business models.
No named decision-maker yet.
No careers mailbox known
Verified live · 4 hours ago 16 days ago Likely open · 55%

Facets Developer

$82k – $123k per year • Senior • 7+ years exp • In office (Seattle, United States) • Senior
SQL
C#
C#
.NET
DevOps
Azure DevOps
Git
Azure
CI/CD
Management
Agile
Scrum
+1
Apply
Verified live · 4 hours ago 16 days ago Likely open · 54%

Application Development Lead – Facets

$75k – $113k per year • Lead • 5+ years exp • In office (Seattle, United States) • Staff
C#
SQL
C#
.NET
Databases
Oracle
Azure SQL Database
DevOps
Azure
Analytics
SSIS
ETL/ELT
Azure Data Factory
+1
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Red Cell Partners

redcellpartners.com
redcellpartners.com • HQ: McLean, United States • Venture Capital • Angel Networks & Startup Accelerators • 51-200 employees • Est. 2020 • Hiring 19, 3 new
HQ: McLean, United States • Venture Capital • Angel Networks & Startup Accelerators • 51-200 employees • Est. 2020 • Hiring 19, 3 new
Red Cell Partners is a venture studio and investment firm headquartered in McLean, Virginia, that was founded in 2020. The organization focuses on building, launching, and scaling technology-led companies by providing operational expertise and capital to startups within its portfolio. Its primary practice areas include healthcare, cybersecurity, and national security, where it develops and scales companies to address complex infrastructure and defense challenges.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago Visa sponsor 16 days ago Hiring now · 90%

Senior/Staff Software Engineer (Platform and Execution Model)

$180k – $240k per year • Equity • Staff+ • 8+ years exp • Seattle • McLean • Remote (United States) • Full-Time • Staff
Rust
TypeScript
Java
AI/ML
Hugging Face
OpenAI
LLM
AI Agents
DevOps
SLI/SLO/SLA
Grafana
CI/CD
AWS Step Functions
AWS
Cybersecurity
HIPAA
+5
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Trase

trase.ai
trase.ai • HQ: Seattle, United States • AI Governance & Compliance • AI Agents • 51-200 employees • Est. 2023 • Startup • Hiring 4
HQ: Seattle, United States • AI Governance & Compliance • AI Agents • 51-200 employees • Est. 2023 • Startup • Hiring 4
Trase builds governed AI agents for healthcare, government, and enterprise — auditable, secure, and deployed where your data already lives.
No named decision-maker yet.
No careers mailbox known
Verified live · 26 min ago 16 days ago Hiring now · 86%

Senior/Staff Software Engineer (Platform and Execution Model)

$180k – $240k per year • Equity • Staff+ • 8+ years exp • Seattle • McLean • Remote (United States) • Full-Time • Staff
Rust
TypeScript
Java
AI/ML
LLM
AI Agents
Hugging Face
OpenAI
DevOps
SLI/SLO/SLA
Grafana
CI/CD
AWS Step Functions
AWS
Cybersecurity
HIPAA
+5
Apply

Temporal

temporal.io
temporal.io • HQ: Seattle, United States • Developer Tools • 1001-5000 employees • Est. 2019 • Trust B • Hiring 72, 5 new
HQ: Seattle, United States • Developer Tools • 1001-5000 employees • Est. 2019 • Trust B • Hiring 72, 5 new
Temporal is an open-source durable execution platform and workflow orchestration engine designed to help developers build reliable, fault-tolerant distributed applications. Originated from the team behind Uber’s Cadence and engineers with deep background in AWS and Azure messaging systems, Temporal allows developers to write business logic as code while automatically persisting state, handling retries, and managing failure recovery behind the scenes.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 1 hour ago 16 days ago Hiring now · 90%

Senior Software Engineer, Nexus Server

$141k – $231k per year • Senior • 6+ years exp • Seattle • San Francisco • Remote (United States) • Full-Time • Senior
Go
Java
DevOps
Git
Apply
Top 25% payVerified live · 1 hour ago 24 days ago Hiring now · 79%

Software Engineer II, Open Source Server

$118k – $194k per year • Middle • Seattle • San Francisco • Remote (United States) • Full-Time • Middle
Go
Java
Go
Temporal
Databases
ClickHouse
ElasticSearch
OpenSearch
MySQL
PostgreSQL
DevOps
KEDA
GCP
Kubernetes
Azure
AWS
+5
Apply
Top 25% payVerified live · 1 hour ago 25 days ago Likely open · 65%

Staff Software Engineer, Replication Foundations

$170k – $278k per year • Staff+ • Seattle • Remote (United States) • Full-Time • Staff
C++
Java
Go
Go
Temporal
Apply

Metropolis Technologies

metropolis.io
metropolis.io • HQ: Santa Monica, United States • Computer Vision • Smart Mobility • 51-200 employees • Est. 2017 • Startup • Trust A • Hiring 84, 12 new
HQ: Santa Monica, United States • Computer Vision • Smart Mobility • 51-200 employees • Est. 2017 • Startup • Trust A • Hiring 84, 12 new
Metropolis Technologies is an American artificial intelligence company headquartered in Santa Monica, California, using computer vision to run checkout-free, drive-in drive-out parking for members and property owners. Founded in 2017, it became the largest parking operator in North America after acquiring SP Plus in 2024, and its platform now extends from parking into aviation, security and other physical venues, backed by more than one billion dollars in financing. It hires AI and software engineers, product managers, business development and partner success directors, account executives, finance and accounting staff, corporate counsel and operations leaders.
Alex Israel · Executive Officer, Director · decision-maker
Travis Kell · Executive Officer, Director · decision-maker
Peter Fisher · Executive Officer, Director · decision-maker
Courtney Fukuda · Executive Officer · decision-maker
No careers mailbox known
Top 25% payVerified live · 8 min ago 17 days ago Hiring now · 90%

Senior Software Engineer, Incentive Offers

$177k – $216k per year • Equity • Senior • 6+ years exp • In office (Seattle, United States) • Bachelor's Degree • Senior
Scala
Java
TypeScript
Databases
MySQL
Snowflake
PostgreSQL
AI/ML
Multimodal AI
Claude Code
Copilot
DevOps
CI/CD
Datadog
GitHub
Git
AWS
+6
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Top 25% payVerified live · 8 min ago 17 days ago Hiring now · 90%

Senior Software Engineer, Visit Experience

$177k – $216k per year • Equity • Senior • 6+ years exp • In office (Seattle, United States) • Bachelor's Degree • Senior
Ruby
Node JS
JavaScript
Python
Scala
TypeScript
Databases
MySQL
PostgreSQL
AI/ML
Computer Vision
Frontend
Vue.js
Angular
React.js
DevOps
Rest API
Docker
GCP
Kubernetes
Azure
AWS
CI/CD
+11
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Verified live · 8 min ago 1 month ago Hiring now · 78%

Staff Software Engineer, Reliability

$204k – $249k per year • Equity • Staff+ • 8+ years exp • In office (Seattle, New York, Los Angeles, United States) • PhD • Staff
Scala
Java
TypeScript
Databases
MySQL
Snowflake
PostgreSQL
AI/ML
Context Engineering
Claude Code
Copilot
AI Agents
Mobile
Twilio
DevOps
Datadog
Chaos Engineering
SLI/SLO/SLA
Incident Management
DNS
GitHub
AWS
Git
+11
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Pinterest

pinterest.com
pinterest.com • HQ: San Francisco, United States • Social Networks • Video & Photo Sharing • 1001-5000 employees • Est. 2010 • Trust B • Hiring 145, 19 new
HQ: San Francisco, United States • Social Networks • Video & Photo Sharing • 1001-5000 employees • Est. 2010 • Trust B • Hiring 145, 19 new
Pinterest is an American visual discovery platform founded in 2010 where people save and organise images, products and ideas into themed boards. Unlike feed-based social networks it is built around planning future intent, so users arrive researching a kitchen renovation, an outfit or a holiday rather than to follow friends, which makes the audience unusually valuable to advertisers. Headquartered in San Francisco and listed on the New York Stock Exchange since 2019, the company earns nearly all of its revenue from advertising and has invested heavily in shoppable pins, visual search and AI-driven recommendations.
Evan Sharp · Co-Founder · decision-maker
Ben Silbermann · Co-Founder & Executive Chairman · decision-maker
Todd Morgenfeld · Executive Officer · decision-maker
Christine Flores · Executive Officer · decision-maker
No careers mailbox known
Top 25% payVerified live · 2 hours ago Visa sponsor 17 days ago Likely open · 62%

Staff Software Engineer, App Promotion

$189k – $390k per year • Staff+ • Hybrid (San Francisco, Seattle, United States) • Relocation • Bachelor's Degree • Staff
Apply
Top 25% payVerified live · 2 hours ago Visa sponsor 18 days ago Likely open · 55%

Sr Software Engineer, EPD Ads

$156k – $320k per year • Senior • 4+ years exp • Hybrid (San Francisco, New York, Seattle, Palo Alto, United States) • Relocation • Bachelor's Degree • Senior
JavaScript
AI/ML
Machine Learning
Frontend
React.js
Analytics
A/B Testing
Apply
Top 25% payVerified live · 2 hours ago Visa sponsor 18 days ago Likely open · 56%

Software Engineer II, EPD Ads

$124k – $255k per year • Middle • 2+ years exp • Hybrid (San Francisco, New York, Seattle, Palo Alto, United States) • Relocation • Bachelor's Degree • Middle
JavaScript
AI/ML
Machine Learning
Frontend
React.js
Analytics
A/B Testing
Apply

NetApp

netapp.com
netapp.com • HQ: San Jose, United States • Digital Storage • Cloud Platforms (IaaS & PaaS) • Enterprise Storage Systems • 1001-5000 employees • Est. 1992 • NASDAQ: NTAP • Trust A • Hiring 222, 2 new
HQ: San Jose, United States • Digital Storage • Cloud Platforms (IaaS & PaaS) • Enterprise Storage Systems • 1001-5000 employees • Est. 1992 • NASDAQ: NTAP • Trust A • Hiring 222, 2 new
NetApp is an American data infrastructure company that makes enterprise storage systems and data management software. Founded in 1992, it sells all-flash and hybrid arrays running its ONTAP operating system for file, block and object storage, and offers ONTAP-based services inside the large public clouds, such as Amazon FSx for NetApp ONTAP and Azure NetApp Files, along with data protection and ransomware recovery tools. The company is headquartered in San Jose, California, United States.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 4 hours ago Visa sponsor 17 days ago Hiring now · 90%

Principal Software Engineer

$228k – $339k per year • Equity • Lead • 12+ years exp • In office (Bellevue, Seattle, United States) • Bachelor's Degree • Principal
Rust
Go
Node JS
TypeScript
Java
Python
JavaScript
SQL
AI/ML
Function Calling
AI Agents
RAG
LLM
Frontend
Angular
React.js
DevOps
GCP
Azure
AWS
CloudFormation
Terraform
Rest API
Docker
Kubernetes
CI/CD
+15
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Aurora Innovation

aurora.tech
aurora.tech • HQ: Pittsburgh, United States • Artificial Intelligence • Transportation & Logistics • Logistics • Autonomous Driving • 501-1000 employees • Hiring 97, 10 new
HQ: Pittsburgh, United States • Artificial Intelligence • Transportation & Logistics • Logistics • Autonomous Driving • 501-1000 employees • Hiring 97, 10 new
Aurora Innovation is an autonomous vehicle technology company dedicated to developing self-driving systems for commercial trucking and passenger mobility. Headquartered in Pittsburgh, Pennsylvania, the company develops the Aurora Driver, an integrated platform combining proprietary hardware, software, and data services to safely operate vehicles without human intervention. Through strategic partnerships with leading automotive manufacturers and logistics carriers, the firm aims to transform long-haul freight and transportation into a safer, more efficient, and scalable industry.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 2 hours ago 17 days ago Hiring now · 90%

Software Engineer, Geometric Generation

$139k – $223k per year • Equity • Middle • 3+ years exp • Hybrid (Mountain View, San Francisco, Louisville, Seattle, United States) • Bachelor's Degree • Full-Time • Middle
C++
Python
Databases
Amazon Aurora
AI/ML
Multimodal AI
Computer Vision
Spark
DevOps
AWS
Robotics
SLAM
Apply
Top 25% payVerified live · 2 hours ago 17 days ago Hiring now · 90%

Senior Software Engineer, Geometric Generation

$160k – $260k per year • Equity • Senior • 6+ years exp • Hybrid (Mountain View, San Francisco, Louisville, Seattle, United States) • Bachelor's Degree • Full-Time • Senior
C++
Python
Databases
Amazon Aurora
AI/ML
Multimodal AI
Computer Vision
Spark
DevOps
AWS
Robotics
SLAM
Apply
Top 25% payVerified live · 2 hours ago 1 month ago Hiring now · 80%

Sr Full Stack UX Engineer

$162k – $260k per year • Equity • Senior • 5+ years exp • Hybrid (Pittsburgh, Mountain View, Seattle, United States) • Bachelor's Degree • Full-Time • Senior
Python
TypeScript
JavaScript
Databases
Amazon Aurora
Frontend
Angular
DevOps
Buildkite
Kubernetes
CI/CD
AWS
+1
Apply

Anthropic

anthropic.com
anthropic.com • HQ: San Francisco, United States • Code Intelligence • AI Research Labs • AI Safety & Alignment • Foundation Models • LLM & Generative AI • 1001-5000 employees • Est. 2021 • Trust B • Hiring 677, 57 new
HQ: San Francisco, United States • Code Intelligence • AI Research Labs • AI Safety & Alignment • Foundation Models • LLM & Generative AI • 1001-5000 employees • Est. 2021 • Trust B • Hiring 677, 57 new
Anthropic is an American artificial intelligence safety and research company founded in 2021 by former OpenAI researchers, among them the siblings Dario and Daniela Amodei. It develops the Claude family of large language models and ships them through a consumer assistant, an enterprise developer platform and the Claude Code agentic coding tool, alongside open standards such as the Model Context Protocol. Incorporated as a public benefit corporation and headquartered in San Francisco, the company concentrates on interpretability, alignment and reliability research and counts Google and Amazon among its largest investors.
Jared Kaplan · Co-Founder & Chief Science Officer · decision-maker
Daniela Amodei · Co-Founder & President · decision-maker
Dario Amodei · Co-Founder & Chief Executive Officer · decision-maker
Tom Brown · Co-Founder · founder
No careers mailbox known
Top 25% payVerified live · 1 hour ago 18 days ago Likely open · 56%

Software Engineer, Staff: Applied AI, Science & Engineering

$405k – $485k per year • Staff+ • 8+ years exp • Hybrid (New York, San Francisco, Seattle, United States) • Bachelor's Degree • Staff
Anthropic
Claude
Multimodal AI
Function Calling
Interpretability
Machine Learning
Apply
Top 25% payVerified live · 1 hour ago 2 months ago Long shot · 22%

Software Engineer, Business Technology

$320k – $405k per year • Senior • 6+ years exp • Hybrid (New York, San Francisco, Seattle, United States) • Bachelor's Degree • Senior
TypeScript
Python
JavaScript
AI/ML
Multimodal AI
Anthropic
Interpretability
Frontend
React.js
Apply
Top 25% payVerified live · 1 hour ago 2 months ago Long shot · 23%

Staff + Sr. Software Engineer, Scaling

$320k – $485k per year • Staff+ • Hybrid (New York, San Francisco, Seattle, United States) • Bachelor's Degree • Staff
Rust
Python
AI/ML
Anthropic
Claude
Machine Learning
Multimodal AI
Interpretability
LLM
DevOps
GCP
Kubernetes
Azure
AWS
+4
Apply

F5

f5.com
f5.com • HQ: Seattle, United States • Application Security • Network Security • Web Security & DDoS Protection • 1001-5000 employees • Est. 1996 • Trust B • Hiring 221, 16 new
HQ: Seattle, United States • Application Security • Network Security • Web Security & DDoS Protection • 1001-5000 employees • Est. 1996 • Trust B • Hiring 221, 16 new
F5 is an American application delivery and security company founded in 1996 that built its business on the BIG-IP load balancer, a device that sits in front of applications and distributes traffic across servers. As applications moved to cloud and containers it extended the same position into web application firewalling, bot defence, application programming interface security and multi-cloud networking, largely through the acquisitions of NGINX, Shape Security and Volterra. Headquartered in Seattle and listed on Nasdaq, it serves large enterprises and service providers whose most critical applications still run through its equipment.
Shuman Ghosemajumder · Executive Officer · decision-maker
Hasan Imam · Executive Officer · decision-maker
Derek Smith · Executive Officer, Director · decision-maker
Sumit Agarwal · Executive Officer · decision-maker
No careers mailbox known
Verified live · 2 days ago Visa sponsor 18 days ago Likely open · 55%

Software Development Engineer Intern (Seattle, WA)

Intern • Hybrid (Seattle, United States) • Relocation • Bachelor's Degree • Internship • Intern
Go
C#
Java
Python
DevOps
Docker
Linux
Kubernetes
CI/CD
Apply

The Walt Disney Company

disneycareers.com
disneycareers.com • HQ: Burbank, United States • Broadcasting • Theme Parks & Attractions • Streaming & OTT Platforms • Film Production • 1001-5000 employees • Est. 1923 • Trust B • Hiring 344, 40 new
HQ: Burbank, United States • Broadcasting • Theme Parks & Attractions • Streaming & OTT Platforms • Film Production • 1001-5000 employees • Est. 1923 • Trust B • Hiring 344, 40 new
The Walt Disney Company is an American entertainment and media conglomerate founded in 1923 by Walt and Roy Disney. It produces films and series through Walt Disney Studios, Pixar, Marvel and Lucasfilm, runs the Disney+, Hulu and ESPN streaming services and the ABC television network, and operates theme parks, resorts and cruise lines worldwide. The company is headquartered in Burbank, California, United States.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 2 min ago 18 days ago Likely open · 45%

Principal Software Engineer - Ad Experiences

$197k – $265k per year • Lead • 10+ years exp • In office (Glendale, Seattle, Santa Monica, United States) • Bachelor's Degree • Full-Time • Principal
Java
Databases
DynamoDB
Redis
Apache Kafka
DevOps
Amazon Kinesis
AWS
Terraform
Docker
Kubernetes
+1
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Verified live · 2 min ago 21 days ago Fading · 39%

Software Engineer II (GenAI)

$125k – $167k per year • Middle • 3+ years exp • In office (Seattle, Glendale, United States) • Bachelor's Degree • Full-Time • Middle
Python
SQL
Databases
Snowflake
AI/ML
Function Calling
LLMOps
Agentic Workflows
Model Context Protocol
AI Agents
Embeddings
Structured Outputs
Cursor
Prompt Engineering
OpenAI
Claude Code
DevOps
Incident Management
Azure
Cortex
Prometheus
Docker
GCP
CI/CD
AWS
+14
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Top 25% payVerified live · 2 min ago 1 month ago Fading · 27%

Sr Principal Software Engineer

$240k – $321k per year • Lead • 12+ years exp • In office (Seattle, San Francisco, New York, United States) • Bachelor's Degree • Full-Time • Principal
Feature Store
DevOps
SRE
SLI/SLO/SLA
Amazon Kinesis
API Gateway
Platform Engineering
Cybersecurity
Zero Trust
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Hubble

hubble.ai
hubble.ai • HQ: Seattle, United States • Health Data & Interoperability • 51-200 employees • Est. 2026 • Startup • Hiring 1
HQ: Seattle, United States • Health Data & Interoperability • 51-200 employees • Est. 2026 • Startup • Hiring 1
AI-native medical record retrieval. A more complete patient record across EHRs and payers. HIPAA-compliant. Backed by Y Combinator.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 1 hour ago 18 days ago Hiring now · 70%

Founding Engineer

$150k – $200k per year • Equity 1–3% • Middle • 3+ years exp • In office (Seattle, United States) • Relocation • Full-Time • Middle
Perplexity
Scale AI
AI Agents
Cybersecurity
HIPAA
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Report

Endurance Energy

enduranceenergy.com
enduranceenergy.com • HQ: Seattle, United States • Power Grid • Marine & Ocean Engineering • 201-500 employees • Est. 2025 • Startup • Trust A • Hiring 19, 2 new
HQ: Seattle, United States • Power Grid • Marine & Ocean Engineering • 201-500 employees • Est. 2025 • Startup • Trust A • Hiring 19, 2 new
Headquartered in Seattle, Washington, Endurance Energy is a clean energy technology company specializing in subsea geothermal power systems. The firm develops offshore geothermal generators and hydrothermal solutions designed to harness deep ocean thermal energy to generate continuous, baseload renewable electricity. Additionally, its modular subsea units provide scalable, zero-surface-footprint energy infrastructure to power hyperscale data centers, industrial facilities, and coastal communities.
No named decision-maker yet.
Careers mailbox is known
Top 25% payVerified live · 5 hours ago 18 days ago Hiring now · 86%

Senior/Principal Software Engineer

$200k – $250k per year • Equity • Lead • 5+ years exp • In office (Seattle, United States) • Full-Time • Principal
Rust
C++
Python
AI/ML
Human-in-the-Loop
DevOps
Linux
Robotics
EtherCAT
IoT
OPC UA
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Félix Pago

felixpago.com
felixpago.com • HQ: Miami, United States • Stablecoins • Money Transfer & Remittances • 11-50 employees • Est. 2021 • Startup • Trust A • Hiring 80, 16 new
HQ: Miami, United States • Stablecoins • Money Transfer & Remittances • 11-50 employees • Est. 2021 • Startup • Trust A • Hiring 80, 16 new
Félix Pago lets Latino migrants in the United States send remittances through WhatsApp, settling the transfers over stablecoin rails. Recipients collect funds in local currency at partner banks and cash points across Latin America. The company uses blockchain settlement to cut cost and delay without exposing users to crypto directly.
No named decision-maker yet.
No careers mailbox known
Verified live · 1 hour ago 18 days ago Hiring now · 74%

Staff Software Engineer (Seattle)

$200k – $250k per year • Equity • Staff+ • 8+ years exp • Hybrid (Seattle, United States) • PhD • Full-Time • Staff • English: C1
Go
SQL
Python
JavaScript
Python
Flask
FastAPI
Databases
Google BigQuery
Firestore
Redis
Frontend
React.js
DevOps
gRPC
PagerDuty
Google Cloud Run
Terraform
Rest API
GCP
Kubernetes
CI/CD
+10
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Expedia Group

expediagroup.com
expediagroup.com • HQ: Seattle, United States • Vacation Rentals • Travel Agencies • Travel Technology • 501-1000 employees • Est. 1996 • NASDAQ: EXPE • Trust A • Hiring 170, 20 new
HQ: Seattle, United States • Vacation Rentals • Travel Agencies • Travel Technology • 501-1000 employees • Est. 1996 • NASDAQ: EXPE • Trust A • Hiring 170, 20 new
Expedia Group is an American travel technology company headquartered in Seattle, Washington, that runs consumer brands such as Expedia and Vrbo alongside a B2B travel network and a travel advertising business. It began in 1996 as a division of Microsoft, went public in 1999, was spun off from IAC in 2005, and its portfolio also includes Hotwire, Orbitz, Travelocity, Wotif and Trivago. Current openings cover software development and machine learning engineers and scientists, product managers, data engineers, account managers for hotel partners, and analysts in Seattle, London, Austin and Chicago.
No named decision-maker yet.
No careers mailbox known
Top 25% payVerified live · 2 days ago 19 days ago Likely open · 62%

Senior Software Development Engineer - AI Foundations

$185k – $258k per year • Senior • 8+ years exp • In office (Seattle, United States) • Bachelor's Degree • Full-Time • Senior
Kotlin
Java
Python
AI/ML
Machine Learning
AI Agents
LLM Guardrails
RAG
DevOps
Incident Management
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Verified live · 2 days ago 20 days ago Fading · 44%

Software Development Engineer II - Payments

$119k – $167k per year • Middle • 2+ years exp • In office (Seattle, United States) • Relocation • Bachelor's Degree • Full-Time • Middle
Kotlin
Java
AI/ML
Machine Learning
DevOps
CI/CD
AWS
Management
Agile
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Top 25% payVerified live · 2 days ago 22 days ago Likely open · 46%

Senior Software Engineer - Distribution and Supply

$185k – $258k per year • Senior • 8+ years exp • In office (Seattle, United States) • Bachelor's Degree • Full-Time • Senior
Rust
Scala
Kotlin
Java
DevOps
CI/CD
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Machines can read this selection · checked 17:00 UTC
Backend Developer Jobs in Seattle
Frequently asked questions
How many Backend Developer jobs in Seattle are available on Alion?
There are currently 500 active listings from 135 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Seattle pay?
The average salary is around $256,757 per year based on the current listings.
Are remote options available for Backend Developer jobs in Seattle?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in Seattle?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.