Senior Backend Developer Jobs

Senior Backend Developer jobs hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $188,902/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Executive
Networking
Product
Design
Analytics
Support
Enterprise Apps
Quantum

Domaintools

domaintools.com
DomainTools is a leading provider of domain name and DNS-based cyber threat intelligence solutions. It offers a range of products including the Iris Intelligence Platform for mapping connected infrastructure to get ahead of threats, Iris Detect for monitoring lookalike domains, and Iris Enrich for integrating DomainTools data with SIEM, SOAR, and other tools. DomainTools' Farsight DNSDB is the world's largest passive DNS intelligence solution, providing historical and real-time DNS data.
domaintools.com • Raleigh • Denver • Austin • Chicago • Washington • Domain Names • Cybersecurity • Threat Intelligence
Raleigh • Denver • Austin • Chicago • Washington • Domain Names • Cybersecurity • Threat Intelligence
Verified live · 4 hours ago 2 months ago

Senior Software Engineer

$139k – $231k per year (Estimated) • Senior • Raleigh • Remote (United States) • Full-Time • Senior
Bash
Python
Rust
Scala
Databases
Apache Kafka
CockroachDB
ElasticSearch
NATS
OpenSearch
PostgreSQL
AI/ML
Airflow
Spark
DevOps
AWS
CI/CD
Docker
Kubernetes
Apply
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Clockwork

clockwork.io
About Us Clockwork builds software that optimizes GPU clusters for fault tolerance, deterministic performance and increased utilization.Today's AI workloads are massively distributed and depend on GPUs staying tightly in sync.
clockwork.io • HQ: Palo Alto, United States • AI Infrastructure • Information Technology
HQ: Palo Alto, United States • AI Infrastructure • Information Technology
Top 25% payVerified live · 2 hours ago 2 months ago

Senior Software Engineer

$140k – $210k per year • Equity • Senior • 5+ years expIn office (Palo Alto, United States) • Bachelor's Degree • Senior
C++
Go
Java
Python
DevOps
AWS
Azure
GCP
Apply
Open 123 daysTop 25% pay 4 months ago

Senior Software Engineer – Network Observability

$140k – $210k per year • Equity • Senior • In office (Palo Alto, United States) • Bachelor's Degree • Senior
C++
Go
Python
Rust
AI/ML
Anomaly Detection
InfiniBand
NCCL
Time Series Forecasting
DevOps
Datadog
Grafana
OpenTelemetry
Prometheus
SLI/SLO/SLA
Splunk
AWS
Azure
eBPF
GCP
Kubernetes
HPC
Cybersecurity
Tcpdump
Wireshark
Apply
Open 144 daysTop 25% pay 5 months ago

Senior Software Engineer – Time Synchronization

$150k – $230k per year • Equity • Senior • 6+ years expIn office (Palo Alto, United States) • Senior
C++
DevOps
eBPF
Apply
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NetDocuments

netdocuments.com
NetDocuments is a cloud-based platform that provides comprehensive document, email, and records management solutions tailored for law firms, corporate legal departments, and government agencies. It streamlines complex workflows by offering integrated tools for secure collaboration, version control, and document automation, allowing legal professionals to manage the entire lifecycle of their digital assets.
netdocuments.com • Lehi • Hyderabad • Cybersecurity • Est. 1998
Lehi • Hyderabad • Cybersecurity • Est. 1998
Verified live · 2 days ago 2 months ago

Senior Software Engineer - Next-Gen

$140k – $155k per year • Senior • 6+ years expLehi • Remote (United States) • Bachelor's Degree • Senior
C#
Java
Node JS
SQL
TypeScript
JavaScript
Databases
Apache Kafka
AI/ML
AI Agents
Frontend
GraphQL
React.js
DevOps
AWS
Apply
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Aurelian

aurelian.com
Aurelian is an artificial intelligence company headquartered in Seattle, Washington, and founded in 2022 by James Liu and Max Keenan. The company builds a voice assistant that answers non-emergency calls to 911 centres, triaging and resolving reports such as noise complaints, parking violations, and lost property without occupying a dispatcher. Its systems are deployed in communication centres serving several million residents and automate a large share of the non-emergency call volume.
aurelian.com • HQ: Seattle, United States • Speech & Audio AI • Law Enforcement • Government • Conversational AI • Civil Defense • Artificial Intelligence • Est. 2022
HQ: Seattle, United States • Speech & Audio AI • Law Enforcement • Government • Conversational AI • Civil Defense • Artificial Intelligence • Est. 2022
Top 25% pay 2 months ago

Senior Backend Engineer

$160k – $220k per year • Senior • 4+ years expIn office (Seattle, United States) • Relocation • Full-Time • Senior
AI Agents
Multimodal AI
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Dealpath

dealpath.com
Dealpath provides deal management software for commercial real estate investment teams. It centralises pipeline tracking, underwriting documents and approval workflows. Institutional investors use it to standardise diligence across large acquisition programmes.
dealpath.com • HQ: San Francisco, United States • Asset Management • Real Estate Investment • Real Estate • Est. 2014
HQ: San Francisco, United States • Asset Management • Real Estate Investment • Real Estate • Est. 2014
Top 25% payVerified live · 2 hours ago 2 months ago

Senior Full Stack Engineer

$161k – $210k per year • Equity • Senior • 8+ years expIn office (San Francisco, United States) • Bachelor's Degree • Senior
Ruby
TypeScript
JavaScript
AI/ML
Claude
Claude Code
Cursor
LLM
Frontend
Angular
Apply
Top 25% payVerified live · 2 hours ago 2 months ago

Senior Full Stack Engineer

$161k – $210k per year • Equity • Senior • 8+ years expIn office (New York, United States) • Bachelor's Degree • Senior
Ruby
TypeScript
JavaScript
AI/ML
Claude
Claude Code
Cursor
LLM
Frontend
Angular
Apply
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Mem0

mem0.ai
Mem0 is a company founded in 2023 that builds an open-source memory layer for artificial intelligence agents. Its library extracts durable facts from conversations, stores them across vector and graph backends and injects only relevant memories back into prompts, cutting token cost and improving consistency. The project is widely adopted by developers building assistants that need to remember users over time.
mem0.ai • HQ: San Francisco, United States • Cybersecurity • AI Agents • Artificial Intelligence • Est. 2023
HQ: San Francisco, United States • Cybersecurity • AI Agents • Artificial Intelligence • Est. 2023
Top 25% payVerified live · 1 day ago 2 months ago

Full Stack Engineer

$150k – $250k per year • Senior • 5+ years expIn office (San Francisco, United States) • Bachelor's Degree • Full-Time • Senior
Go
Python
JavaScript
Databases
PostgreSQL
Redis
AI/ML
AI Agents
Embeddings
RAG
vLLM
Frontend
Next.js
React.js
DevOps
CI/CD
Rest API
AWS
Docker
GCP
Kubernetes
Vector
Vercel
WebSockets
Apply
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Healthjoy

healthjoy.com
HealthJoy is the Benefits Operating System for modern employers and benefit consultants. Engage members, steer them to better care, prove ROI.
healthjoy.com • Chicago • Tampa • Dnipro • Human Resources • Health Care • Digital Health • 201-500 employees
Chicago • Tampa • Dnipro • Human Resources • Health Care • Digital Health • 201-500 employees
Senior • 5+ years expRemote/Hybrid • Contractor • Senior
Python
Python
Aiohttp
Asyncio
Flask
SQLAlchemy
Databases
PostgreSQL
AI/ML
AI Agents
Multimodal AI
Context Engineering
LLM Guardrails
Recommender Systems
DevOps
AWS
CI/CD
Kubernetes
Apply
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Hostinger

hostinger.com
Hostinger is a global web hosting and Internet infrastructure provider headquartered in Kaunas and Vilnius, Lithuania. Founded in 2004 (originally under the name Hosting Media), the company serves millions of creators, SMBs, and web developers across more than 150 countries. Hostinger offers cloud infrastructure solutions - including shared web hosting, virtual private servers (VPS), managed WordPress hosting, domain registration, and business email services - centered around its proprietary, user-friendly control panel (hPanel).
hostinger.com • HQ: Vilnius, Kaunas, Lithuania • Internet Services • Information Technology • Cloud Computing • Domain Names • Web Hosting • 501-1000 employees • Est. 2004
HQ: Vilnius, Kaunas, Lithuania • Internet Services • Information Technology • Cloud Computing • Domain Names • Web Hosting • 501-1000 employees • Est. 2004
Verified live · 6 min ago 2 months ago

Senior Web Tracking Engineer

$76k per year (gross) • Senior • 4+ years expVilnius • Remote (Lithuania) • Full-Time • Senior
JavaScript
SQL
DevOps
GCP
Docker
Google GKE
Kubernetes
Cybersecurity
GDPR
Marketing
Amplitude
Google Ads
GA4
Apply
Verified live · 6 min ago 4 months ago

Senior Full-Stack Developer | Reach

$76k – $106k per year (gross) • Senior • Remote/Hybrid (Vilnius, Kaunas, Lithuania) • Full-Time • Senior
PHP
TypeScript
JavaScript
PHP
Laravel
Symfony
WordPress
Databases
RabbitMQ
Frontend
React.js
Vue.js
DevOps
Docker
GCP
Rest API
Design
Figma
Marketing
Amplitude
QA
Playwright
Vitest
Apply
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Moderntreasury

moderntreasury.com
Launch payment operations in days, not months. One API for multi-rail payments with programmable accounts, real-time reporting, and built-in compliance.
moderntreasury.com • San Francisco • New York • Stablecoins • Cryptocurrencies • Blockchain & Crypto
San Francisco • New York • Stablecoins • Cryptocurrencies • Blockchain & Crypto
Top 25% payVerified live · 1 day ago 2 months ago

Software Engineer - Infrastructure

$150k – $250k per year • Senior • 8+ years expNew YorkSan Francisco • Remote (United States) • Full-Time • Staff
Ruby
Ruby
Ruby on Rails
Databases
PostgreSQL
Frontend
GraphQL
Tailwind CSS
DevOps
AWS
CI/CD
Docker
Platform Engineering
Terraform
Buildkite
GitHub
Apply
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Vercel

vercel.com
Vercel is a leading cloud platform for frontend developers that provides hosting for static sites and serverless functions, enabling teams to build, scale, and secure a faster, personalized web. Best known as the creators of Next.js - a popular open-source React framework - the company focuses on optimizing the developer experience with seamless deployment workflows and continuous integration.
vercel.com • San Francisco • New York • London • Berlin • Sydney • Cloud Computing • Web Development • Web Hosting
San Francisco • New York • London • Berlin • Sydney • Cloud Computing • Web Development • Web Hosting
Verified live · 6 hours ago 2 months ago

Software Engineer, Compute

Senior • 5+ years expRemote/Hybrid (London, United Kingdom) • Senior
Go
JavaScript
AI/ML
AI Agents
OpenAI
Frontend
Next.js
React.js
DevOps
Kubernetes
Nomad
Terraform
Vercel
Cybersecurity
Tcpdump
Apply
Top 25% payVerified live · 6 hours ago 3 months ago

Software Engineer, eve

$208k – $312k per year • Senior • 5+ years expRemote/Hybrid (San Francisco, United States) • Senior
JavaScript
TypeScript
AI/ML
AI Agents
LLM
Function Calling
Human-in-the-Loop
Model Context Protocol
OpenAI
Frontend
Next.js
React.js
DevOps
Vercel
Management
Slack
Apply
Top 25% payVerified live · 6 hours ago 7 months ago

Software Engineer, Workflows

$196k – $294k per year • Senior • 5+ years expRemote/Hybrid (San Francisco, United States) • Senior
JavaScript
TypeScript
AI/ML
AI Agents
OpenAI
Frontend
Next.js
React.js
DevOps
Vercel
Apply
Report

Vector

vector.ai
Top 25% payVerified live · 9 hours ago 2 months ago

Senior Software Engineer, Backend

$180k – $200k per year • Equity • Senior • Remote (United States) • Bachelor's Degree • Full-Time • Senior
Java
Java
JOOQ
Databases
PostgreSQL
Apply
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Planesoftware

planesoftware.com
Plane is an open-source, AI-native project and knowledge management platform designed as a modern alternative to tools like Jira and Linear.
planesoftware.com • San Francisco • Hyderabad • Internet Services • Domain Names
San Francisco • Hyderabad • Internet Services • Domain Names
Verified live · 1 day ago 2 months ago

Backend Engineer – (Python / Django)

$24k – $63k per year (Estimated) • Senior • 5+ years expIn office • Full-Time • Senior
Go
Node JS
Python
JavaScript
Python
Django
Databases
Apache Kafka
PostgreSQL
RabbitMQ
Redis
Frontend
GraphQL
DevOps
AWS
Datadog
Kubernetes
Rancher
GitHub
Design
Figma
Management
Slack
QA
Sentry
Apply
Report

Sybil

runsybil.com
Sybil builds artificial intelligence penetration testing agents that probe live web applications for exploitable weaknesses. Founded in 2024 by former OpenAI and security industry engineers, it aims to run continuously rather than as an annual engagement. Findings are delivered with reproduction steps that engineers can verify.
runsybil.com • HQ: San Francisco, United States • Application Security • Cybersecurity • Penetration Testing • 51-200 employees • Est. 2024
HQ: San Francisco, United States • Application Security • Cybersecurity • Penetration Testing • 51-200 employees • Est. 2024
Top 25% payVerified live · 9 hours ago 2 months ago

Forward Deployed Engineer

$215k – $245k per year • Senior • 8+ years exp • Remote (United States) • Full-Time • Staff
OpenAI
Red Teaming
Apply
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iDeals

ideals.jobs
iDeals is a global B2B SaaS company that provides secure virtual data room solutions designed to facilitate high-stakes business processes like mergers, acquisitions, and corporate reporting. Operating as a remote-first organization, it supports a large international team with a strong focus on professional growth, collaborative culture, and technological innovation. The firm is widely recognized for helping companies manage complex transactions with enhanced speed, compliance, and security.
ideals.jobs • Munich • Tokyo • London • New York • Frankfurt am Main • Financial Services • Cybersecurity • Software • 51-200 employees
Munich • Tokyo • London • New York • Frankfurt am Main • Financial Services • Cybersecurity • Software • 51-200 employees
Verified live · 8 hours ago 2 months ago

Senior Backend Engineer (.Net)

Senior • 5+ years expKyiv • Remote (Ukraine) • Full-Time • Senior
SQL
C#
C#
ASP.NET Core
Entity Framework Core
Databases
MS SQL
PostgreSQL
OpenSearch
DevOps
ArgoCD
AWS
Docker
Git
Kubernetes
Amazon EC2
Amazon S3
Apply
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Verdigris Technologies

verdigris.co
Verdigris Technologies is a company founded in 2011 that meters building electricity at high frequency and disaggregates it by equipment using machine learning. Facility teams see which systems consume power and receive alerts when equipment behaves abnormally, without instrumenting every device. Data centres, hotels and commercial real estate owners use it for energy efficiency and fault detection.
verdigris.co • HQ: Mountain View, United States • AI Infrastructure • Information Technology • Data Centers • Est. 2011
HQ: Mountain View, United States • AI Infrastructure • Information Technology • Data Centers • Est. 2011
$142k – $257k per year (Estimated) • Senior • 7+ years expIn office • Full-Time • Senior
AI Agents
Apply
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Olo

olo.com
Olo is a SaaS company that builds software for restaurants and food brands to manage and grow their digital ordering and delivery operations. Its products sit at the point where a customer places an order, a restaurant fulfils it, and the business needs to keep the experience consistent across channels. In practice, that means helping restaurant groups handle online ordering, delivery integration, and the operational workflows that sit behind high order volumes, while also supporting the data and reliability requirements that come with taking payments and routing orders accurately.
olo.com • HQ: New York, United States • Marketplaces • Commerce • Cloud Computing • Est. 2005
HQ: New York, United States • Marketplaces • Commerce • Cloud Computing • Est. 2005
Verified live · 4 hours ago 2 months ago

Software Engineer - Core

$83k – $157k per year (Estimated) • Senior • 5+ years expBelfast • Remote (Ireland) • Bachelor's Degree • Full-Time • Senior
C#
C#
.NET
AI/ML
Claude
Claude Code
Copilot
DevOps
GitHub
Management
Confluence
Jira
Apply
Verified live · 4 hours ago 2 months ago

Senior Software Engineer - Core

$86k – $163k per year (Estimated) • Senior • 8+ years expBelfast • Remote (Ireland) • Bachelor's Degree • Full-Time • Senior
C#
C#
.NET
Databases
Apache Kafka
AI/ML
Claude
Claude Code
Copilot
DevOps
Amazon EKS
AWS
CI/CD
GitHub Actions
Incident Management
Kubernetes
Octopus Deploy
Terraform
GitHub
Apply
Open 126 daysVerified live · 4 hours ago 5 months ago

Senior Software Engineer - Merchant Solutions

$85k – $161k per year (Estimated) • Senior • 5+ years expBelfast • Remote (Ireland, United Kingdom) • Bachelor's Degree • Full-Time • Senior
C#
C#
.NET
AI/ML
Claude
Claude Code
Copilot
DevOps
Amazon EKS
AWS
CI/CD
GitHub Actions
Kubernetes
Octopus Deploy
TeamCity
GitHub
Apply
Report

Ultralytics

ultralytics.com
End-to-end computer vision platform. Annotate data, train YOLO models, and deploy to 42 global regions.
ultralytics.com • HQ: New York, United States • Robotic Software & Control Systems • Data Science • Artificial Intelligence • Est. 2014
HQ: New York, United States • Robotic Software & Control Systems • Data Science • Artificial Intelligence • Est. 2014
Equity • Senior • 5+ years expRemote/Hybrid (Shenzhen, China) • Full-Time • Senior
Python
TypeScript
JavaScript
Python
Django
FastAPI
Databases
PostgreSQL
Redis
AI/ML
Computer Vision
Ultralytics
YOLO
Frontend
Nuxt.js
React.js
Vue.js
DevOps
CI/CD
Docker
GCP
GitHub Actions
GitHub
Apply
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Fusion Consulting

fusionconsulting.com
Fusion Consulting (Fusion Consulting Group) is a London-headquartered international professional services firm that provides integrated tax, private client, legal, corporate finance, and digital marketing advisory. Founded in 2015, the firm specializes in supporting high-net-worth individuals, entrepreneurs, and fast-growing businesses through a holistic, multi-disciplinary model. By unifying technical advisory services under one roof, Fusion helps clients navigate complex cross-border financial, legal, and operational structures to optimize growth and preserve wealth.
fusionconsulting.com • Mainz • Lisbon • Budapest • Prague • Warsaw • Professional Services • 201-500 employees
Mainz • Lisbon • Budapest • Prague • Warsaw • Professional Services • 201-500 employees
Verified live · 2 hours ago 2 months ago

Senior Rust Developer

$55k – $126k per year (Estimated) • Senior • 4+ years expBarcelona • Remote (Spain) • Relocation • Full-Time • Senior
Rust
TypeScript
JavaScript
Frontend
Angular
React.js
Vue.js
DevOps
AWS
Rest API
Game Dev
Unity
Analytics
ETL/ELT
Apply
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Hitachi Solutions

hitachi-solutions.com
Hitachi Solutions is a global systems integrator and provider of business application and cloud transformation services. The company specializes in implementing tailored solutions built on the Microsoft platform, including Dynamics 365, Azure, and Data & AI tools. By combining deep industry expertise with advanced technology, it helps enterprises modernize their operations, optimize processes, and drive digital transformation.
hitachi-solutions.com • HQ: Irvine, United States • Sales & Marketing • Professional Services • Data & Analytics • Software • Enterprise Resource Planning (ERP) • Information Technology • Cloud Computing • IT Consulting • Est. 2002
HQ: Irvine, United States • Sales & Marketing • Professional Services • Data & Analytics • Software • Enterprise Resource Planning (ERP) • Information Technology • Cloud Computing • IT Consulting • Est. 2002
2 months ago

Software Engineer

$22k – $58k per year (Estimated) • Senior • 5+ years expIn office (Pune, India) • Full-Time • Senior
C#
JavaScript
PowerShell
Python
SQL
TypeScript
C#
ASP.NET Core
Databases
Azure Cosmos DB
Azure SQL Database
AI/ML
Copilot
Embeddings
Prompt Engineering
RAG
AI Agents
OpenAI
Frontend
Angular
React.js
DevOps
Azure
Azure AKS
Azure DevOps
Bicep
CI/CD
Docker
GitHub Actions
OpenTelemetry
Rest API
Terraform
Vector
Kubernetes
GitHub
Cybersecurity
Microsoft Entra ID
Apply
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Senior Backend Developer Jobs
Frequently asked questions
How many Senior Backend Developer jobs are available on Alion?
There are currently 10276 active listings from 2892 hiring companies on Alion, refreshed daily.
What salary do Senior Backend Developer jobs pay?
The average salary is around $188,902 per year based on the current listings.
Are remote options available for Senior Backend Developer jobs?
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 Senior Backend Developer jobs?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.