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

Relativity Space

relativityspace.com
Relativity Space is an American commercial aerospace manufacturer headquartered in Long Beach, California. Founded in 2015 by Tim Ellis and Jordan Noone, the company pioneered the use of large-scale 3D printing (Stargate metal 3D printers), proprietary aluminum alloys, and machine learning software to print rockets and engines. After launching Terran 1 - the world's first 3D-printed rocket to reach space - the firm pivoted its core development exclusively to Terran R.
relativityspace.com • HQ: Long Beach, United States • Space Services • Space & Aerospace • Launch Services • 1001-5000 employees • Est. 2015
HQ: Long Beach, United States • Space Services • Space & Aerospace • Launch Services • 1001-5000 employees • Est. 2015
Verified live · 1 hour ago 3 days ago

Senior Flight Software Engineer

$140k – $253k per year (Estimated) • Senior • 5+ years expIn office (Long Beach, United States) • Senior
C++
Rust
C++
Protobuf
AI/ML
Human-in-the-Loop
DevOps
CI/CD
Vector
Apply
Verified live · 1 hour ago 20 days ago

Senior Software Engineer, Agentic Infrastructure

$134k – $242k per year (Estimated) • Senior • 5+ years expRemote/Hybrid (Long Beach, United States) • Senior
LLM
AI Agents
llama.cpp
MLX ML
Ollama
vLLM
DevOps
Proxmox VE
Gitea
GitHub
Apply
Verified live · 1 hour ago 2 months ago

Senior Software Engineer, Full Stack (Factory Platform)

$135k – $243k per year (Estimated) • Senior • 7+ years expIn office (Long Beach, United States) • Bachelor's Degree • Senior
Python
TypeScript
Databases
Amazon Redshift
DuckDB
PostgreSQL
AI/ML
Spark
DevOps
AWS
Helm
Kubernetes
Terraform
Apply
Report

OpenFX

openfx.com
Learn about OpenFX, a trusted fintech company and global leader in cross-border payments, providing modern payment infrastructure, API payment solutions, and expert corporate payment services.
openfx.com • Bengaluru • FinTech • Financial Services • Payments • Est. 2024
Bengaluru • FinTech • Financial Services • Payments • Est. 2024
3 days ago

Backend Developer

$25k – $66k per year (Estimated) • Senior • 7+ years expIn office (Bengaluru, India) • Senior
Go
Java
Node JS
Python
C#
JavaScript
C#
.NET
Apply
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Clearview AI

clearview.ai
Clearview AI built a facial recognition search engine over billions of images collected from public web sources. Founded in 2017 in New York, it sells identification tools to law enforcement agencies in the United States. The company has been at the centre of international debate and regulatory action over biometric privacy.
clearview.ai • HQ: New York, United States • Artificial Intelligence • Law Enforcement • Computer Vision • 51-200 employees • Est. 2017
HQ: New York, United States • Artificial Intelligence • Law Enforcement • Computer Vision • 51-200 employees • Est. 2017
Top 25% payVerified live · 1 hour ago 3 days ago

Senior Software Engineer

$175k – $220k per year • Senior • Remote/Hybrid (New York, United States) • Full-Time • Senior
GitOps
Apply
Report

HealthEdge

healthedge.com
HealthEdge builds core administrative software for health insurance payers. Its products handle claims processing, benefits configuration, care management and member engagement. Plans use the platform to replace decades-old claims systems.
healthedge.com • HQ: Burlington, United States • Digital Health • Data & Analytics • Cloud Computing • 1001-5000 employees • Est. 2004
HQ: Burlington, United States • Digital Health • Data & Analytics • Cloud Computing • 1001-5000 employees • Est. 2004
$24k – $64k per year (Estimated) • Senior • 5+ years expIn office (Bengaluru, India) • Bachelor's Degree • Senior
C#
JavaScript
SQL
TypeScript
Java
Ruby
C#
ASP.NET Core
Ruby
Ruby on Rails
Java
Spring Boot
Databases
Apache Kafka
MS SQL
AI/ML
ChatGPT
Claude
Copilot
Cursor
AI Agents
Frontend
Angular
React.js
DevOps
AWS
Azure
GCP
Kubernetes
GitHub
Docker
Apply
$127k – $229k per year (Estimated) • Senior • 5+ years expIn office (Burlington, United States) • Bachelor's Degree • Senior
C#
JavaScript
SQL
TypeScript
C#
.NET
Databases
MySQL
PostgreSQL
Frontend
Angular
JQuery
React.js
DevOps
AWS
Azure
Azure DevOps
CI/CD
Docker
GitHub Actions
Jenkins
Kubernetes
GitHub
Apply
3 days ago

Software Engineer

$145k – $162k per year • Senior • 8+ years expBoston • Remote (United States) • Bachelor's Degree • Staff
Java
SQL
Databases
Oracle
Mobile
JUnit
Apply
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Alga Payment

algapay.kz
Headquartered in Almaty, Kazakhstan, AlgaPay is an innovative fintech startup and participant in Astana Hub. The company provides a digital platform that allows employees to access their earned wages before payday, helping them avoid traditional loans. Additionally, it integrates with enterprise accounting systems to automate payroll processes and optimize liquidity management for businesses.
algapay.kz • HQ: Almaty, Kazakhstan • Financial Services
HQ: Almaty, Kazakhstan • Financial Services
Verified live · 1 hour ago 3 days ago

Python Backend Developer Senior

$17k – $46k per year (Estimated) • Senior • Remote/Hybrid (Almaty, Kazakhstan) • Senior • Russian: C1
Python
Python
Django
FastAPI
SQLAlchemy
Databases
PostgreSQL
Apache Kafka
RabbitMQ
Redis
AI/ML
ChatGPT
Claude
Copilot
DevOps
CI/CD
Git
Gitflow
Rest API
AWS
GCP
Grafana
Nginx
Prometheus
Yandex Cloud
QA
Pytest
Apply
Report

NCS

ncs.co
NCS is a technology services provider headquartered in Singapore and was founded in 1981. The company provides a broad range of services including digital transformation, system integration, cybersecurity, and artificial intelligence solutions for government and enterprise clients. As a subsidiary of the Singtel Group, it operates across the Asia Pacific region with a presence in markets such as Australia, China, and India.
ncs.co • HQ: Singapore • Managed Security • Cybersecurity • LLM & Generative AI • Artificial Intelligence • Managed IT Services • System Integration • Information Technology • IT Consulting • Est. 1981
HQ: Singapore • Managed Security • Cybersecurity • LLM & Generative AI • Artificial Intelligence • Managed IT Services • System Integration • Information Technology • IT Consulting • Est. 1981
Verified live · 3 min ago 3 days ago

Senior Software Engineer (Java)

$91k – $165k per year (Estimated) • Equity • Senior • In office (London, United Kingdom) • Bachelor's Degree • Full-Time • Senior • English: C1
Java
Java
Spring Boot
Databases
PostgreSQL
DevOps
Rest API
CI/CD
Apply
Verified live · 3 min ago 3 days ago

Senior Software Engineer (Java)

$62k – $98k per year (Estimated) • Equity • Senior • In office (Kraków, Poland) • Bachelor's Degree • Full-Time • Senior • English: C1
Java
Java
Spring Boot
Databases
PostgreSQL
DevOps
Rest API
CI/CD
Apply
Verified live · 3 min ago 2 months ago

Senior Software Engineer (Java)

$141k – $254k per year (Estimated) • Equity • Senior • In office (New York, United States) • Bachelor's Degree • Full-Time • Senior
Java
Java
Spring Boot
Databases
PostgreSQL
DevOps
Rest API
CI/CD
Apply
Report

Alaffia Health

alaffiahealth.com
Alaffia Health applies large language models to detect fraud, waste and billing errors in medical claims for self-insured employers and health plans. Founded in 2020 in New York, its system reads itemised bills and medical records the way a clinical auditor would. The company reports recovering a significant share of reviewed claim value.
alaffiahealth.com • HQ: New York, United States • AI Agents • Artificial Intelligence • Est. 2020
HQ: New York, United States • AI Agents • Artificial Intelligence • Est. 2020
Verified live · 3 hours ago 3 days ago

Senior Python Engineer (Backend)

$147k – $266k per year (Estimated) • Senior • 7+ years expRemote/Hybrid (New York, United States) • Full-Time • Senior
Python
Databases
Apache Kafka
AI/ML
AI Agents
Dagster
Edge AI
Frontend
Sass
DevOps
AWS
Azure
CI/CD
Datadog
GCP
Vector
Amazon Kinesis
Apply
Report

Vena Solutions

venasolutions.com
Vena Solutions is a Canadian software company founded in 2011 and headquartered in Toronto. Its platform handles corporate planning and budgeting inside a spreadsheet interface. The product is used by thousands of finance teams.
venasolutions.com • HQ: Toronto, Canada • AI Agents • 51-200 employees • Est. 2011
HQ: Toronto, Canada • AI Agents • 51-200 employees • Est. 2011
Verified live · 1 hour ago 3 days ago

Senior Software Developer, Full Stack

$22k – $30k per year • Senior • In office • Full-Time • Senior
Apply
Verified live · 1 hour ago 3 days ago

Senior Software Developer

$23k – $31k per year • Senior • In office • Relocation • Full-Time • Senior
Apply
Report

GranSoft

gran-soft.com
Home Services Expertise About About Mr Gregory Kogan CEO Has over 27 years of experience in software development, including more than 22 years in technical leadership and project management roles.
gran-soft.com • Baku
Baku
Verified live · 1 hour ago 3 days ago

Senior Full-Stack Software Engineer (Go & React)

Senior • 3+ years expBaku • Remote (Azerbaijan) • Senior • Russian: C1 • English: B2
Go
SQL
TypeScript
JavaScript
Frontend
React.js
Apply
Report

MobiKwik

mobikwik.com
MobiKwik is an Indian fintech company headquartered in Gurugram and was founded in 2009. The company provides a digital wallet and mobile payments platform for recharges and bill payments while offering financial products such as Buy Now Pay Later credit, personal loans, and investment options. Serving millions of registered users and thousands of merchant partners, the firm operates primarily in the Indian market and powers payment processing for major brands like IRCTC and Uber.
mobikwik.com • HQ: Gurgaon, India • Personal Finance • Lending • Financial Services • FinTech • Payments • Est. 2009
HQ: Gurgaon, India • Personal Finance • Lending • Financial Services • FinTech • Payments • Est. 2009
3 days ago

Golang Developer

$25k – $66k per year (Estimated) • Senior • 5+ years expIn office (Gurgaon, India) • Senior
Go
Apply
$23k – $61k per year (Estimated) • Senior • 5+ years expIn office (Delhi, India) • Bachelor's Degree • Senior
Go
Java
Java
Spring Boot
DevOps
Rest API
AWS
Azure
GCP
Apply
2 months ago

Sr. SDE 3 - Java

$23k – $61k per year (Estimated) • Senior • 6+ years expIn office (Delhi, India) • Senior
Java
SQL
Java
Spring Boot
Spring Cloud
Databases
Apache Kafka
DynamoDB
MySQL
PostgreSQL
RabbitMQ
DevOps
Amazon EC2
Amazon EKS
AWS
AWS Lambda
CI/CD
Docker
GitHub Actions
Jenkins
Rest API
Kubernetes
Amazon ECS
Amazon S3
API Gateway
GitHub
Apply
Report

MoEngage

moengage.com
A fast growing User Analytics and Engagement platform for mobile apps, already used by companies like Cleartrip, Ibibo, Redbus, Gaana, etc. The company has raised over $5 million in funding.
moengage.com • Bengaluru • Sales & Marketing • Product Analytics • Marketing Automation • Est. 2014
Bengaluru • Sales & Marketing • Product Analytics • Marketing Automation • Est. 2014
$24k – $64k per year (Estimated) • Senior • In office (Bengaluru, India) • Contractor • Senior
C#
JavaScript
SQL
TypeScript
C#
ASP.NET Core
Databases
MySQL
PostgreSQL
AI/ML
ChatGPT
Claude
Copilot
Frontend
React Router
React.js
Redux
DevOps
CI/CD
Shift-Left
GitHub
Cybersecurity
Shift-Left Security
Apply
Report

IntraEdge

intraedge.com
IntraEdge is a global technology talent, services, and training organization that offers products and services for client engagement, staffing, design and development, learning, and workforce development.
intraedge.com • Bengaluru • Higher Education • Data Governance • Cybersecurity • Est. 2002
Bengaluru • Higher Education • Data Governance • Cybersecurity • Est. 2002
$24k – $64k per year (Estimated) • Senior • 5+ years expIn office (Bengaluru, India) • Bachelor's Degree • Senior
C#
JavaScript
SQL
TypeScript
C#
ASP.NET Core
Frontend
React.js
DevOps
Amazon EC2
AWS
AWS Lambda
Bitbucket
CI/CD
Docker
Git
Rest API
Amazon CloudWatch
Amazon S3
API Gateway
GitHub
GitLab
IAM
Apply
Report

50Fin

50fin.in
50Fin is a credit platform that that rewards value investors with low-interest credit products by providing access to loans on NIFTY50 stocks and top mutual funds and are currently backed by 100x VC.
50fin.in • Bengaluru • Lending • Est. 2021
Bengaluru • Lending • Est. 2021
$25k – $66k per year (Estimated) • Senior • 3+ years expIn office (Bengaluru, India) • Senior
Python
SQL
Python
Django
Django REST Framework
FastAPI
Flask
SQLAlchemy
Databases
MySQL
PostgreSQL
DevOps
Rest API
Apply
Report

Vouch

vouch.us
Headquartered in Wausau, Wisconsin, Vouch is a video software company that provides a video feedback and testimonial collection platform for businesses. The platform enables organizations to easily record, edit, and share video testimonials, employee updates, and customer feedback using asynchronous video prompts. Additionally, it integrates seamlessly with major business applications and CRM systems to streamline content creation, internal communication, and marketing workflows.
vouch.us • HQ: Wausau, United States • Cybersecurity • Insurance • Financial Services • 51-200 employees • Est. 2018
HQ: Wausau, United States • Cybersecurity • Insurance • Financial Services • 51-200 employees • Est. 2018
Top 25% payVerified live · 1 hour ago 4 days ago

Senior Software Engineer

$180k – $200k per year • Equity • Senior • 3+ years expRemote/Hybrid (Chicago, United States) • PhD • Full-Time • Senior
Apex
Databases
PostgreSQL
Snowflake
AI/ML
AI Agents
Anthropic SDK
Claude
Cursor
LangChain
LangGraph
LLM
Model Context Protocol
Anthropic
LLM Evaluation
DevOps
Amazon S3
AWS
Analytics
ETL/ELT
Marketing
Salesforce
Apply
Report

Warp

warp.dev
Headquartered in New York City, New York, Warp is a software technology company that develops a modern, Rust-based terminal for software engineers. The company's intelligent terminal replaces traditional command-line interfaces with modern features like text-editor-like input, block-based output navigation, and integrated AI assistance. Additionally, it offers cloud-backed team collaboration tools, allowing developers to save, share, and reuse workflows across their organizations.
warp.dev • HQ: New York, United States • Artificial Intelligence • AI Agents
HQ: New York, United States • Artificial Intelligence • AI Agents
$230k – $290k per year • Equity • Senior • 5+ years expNew York • Remote (United States) • Full-Time • Senior
Claude
Claude Code
Gemini
AI Agents
OpenAI Codex
OpenAI
DevOps
Docker
Cloudflare
Cybersecurity
Semgrep
Snyk
Threat Modeling
Wiz
Design
Figma
Marketing
Salesforce
Apply
Top 25% payVerified live · 1 day ago 6 days ago

Software Engineer, Enterprise Security

$230k – $290k per year • Equity • Senior • 5+ years exp • Remote (United States) • Cofounder • Senior
Claude
Claude Code
Gemini
AI Agents
OpenAI Codex
OpenAI
DevOps
Docker
Cloudflare
Cybersecurity
Semgrep
Snyk
Threat Modeling
Wiz
Design
Figma
Marketing
Salesforce
Apply
Report

AssemblyAI

assemblyai.com
AssemblyAI is a developer focused company that provides speech and audio AI through an API. In practical terms, it helps software teams turn unstructured audio into text and structured information, such as transcripts, summaries, and other speech derived signals that can be used inside products and workflows. The core problem it addresses is that working with audio at scale is difficult and time consuming without reliable models and infrastructure, especially when teams need accuracy, speed, and an integration that is straightforward to maintain.
assemblyai.com • London • New York • San Francisco • Denver • Chicago • LLM & Generative AI • Speech & Audio AI • Artificial Intelligence
London • New York • San Francisco • Denver • Chicago • LLM & Generative AI • Speech & Audio AI • Artificial Intelligence
Verified live · 1 day ago 4 days ago

Senior Software Engineer, Inference

$95k – $172k per year (Estimated) • Senior • In office • Senior
LLM
Edge AI
Cybersecurity
GDPR
Apply
Verified live · 1 day ago 4 days ago

Senior Software Engineer, Inference

$108k – $308k per year (Estimated) • Senior • In office • Senior
LLM
Edge AI
Cybersecurity
GDPR
Apply
Top 25% payVerified live · 1 day ago 2 months ago

Senior Forward Deployed Engineer

$135k – $203k per year • Equity • Senior • 4+ years expLondon • Remote (United Kingdom) • Senior
Python
SQL
AI/ML
LLM
Cybersecurity
GDPR
Apply
Report
Asseco South Eastern Europe is a technology group headquartered in Zagreb and listed on the Warsaw Stock Exchange. It provides banking software, payment systems and integration services across the region. The group operates in more than a dozen countries.
asee.io • HQ: Zagreb, Croatia • Cybersecurity • Financial Services • Software • Est. 1990
HQ: Zagreb, Croatia • Cybersecurity • Financial Services • Software • Est. 1990
Verified live · 10 hours ago 4 days ago

Mid/senior sC# .NET Developer

Senior • 4+ years expRemote/Hybrid (Sarajevo, Bosnia and Herzegovina) • Full-Time • Senior
C#
C#
ASP.NET Core
Blazor
Apply
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Fast Forward

ffwd.org
The first and only organization focused on scaling tech nonprofits. Our portfolio has impacted 415M lives and raised $1.4B in follow-on funding.
ffwd.org • Design & Creative • Artificial Intelligence • Financial Services • 51-200 employees • Est. 2014
Design & Creative • Artificial Intelligence • Financial Services • 51-200 employees • Est. 2014
Verified live · 3 hours ago 4 days ago

Senior Software Engineer

$129k – $178k per year • Senior • Remote (United States) • Internship • Senior
JavaScript
TypeScript
Databases
ElasticSearch
PostgreSQL
Frontend
React.js
Ant Design
DevOps
AWS
Datadog
Docker
Kubernetes
Terraform
Management
Slack
Apply
Report

Verra Mobility

verramobility.com
Verra Mobility is a technology company that provides a platform for businesses to manage their transportation needs. The company's platform offers a range of features, including: Tolling Parking management Fleet management Safety and compliance Data analytics Verra Mobility's platform is designed to be user-friendly and efficient, with a focus on providing businesses with the tools they need to manage their transportation needs effectively. The company is headquartered in Denver, Colorado.
verramobility.com • HQ: Mesa, United States • Smart City • Smart Mobility • Meat & Poultry
HQ: Mesa, United States • Smart City • Smart Mobility • Meat & Poultry
Verified live · 24 min ago 4 days ago

Senior Software Developer

Senior • 5+ years expIn office • Bachelor's Degree • Senior
TypeScript
C#
JavaScript
Node JS
SQL
C#
ASP.NET Core
Frontend
Angular
Bootstrap
React.js
Vue.js
Mobile
MVC
DevOps
Azure
CI/CD
Apply
Open 144 daysVerified live · 24 min ago 5 months ago

Senior Software Developer

Senior • 5+ years expIn office • Bachelor's Degree • Senior
C#
JavaScript
Node JS
TypeScript
Databases
Amazon DocumentDB
Frontend
React.js
DevOps
AWS
AWS Lambda
CI/CD
Docker
Kubernetes
Amazon S3
API Gateway
Web3
Cosmos
Apply
Report

Vannevar Labs

vannevarlabs.com
Vannevar Labs is a defense technology company focused on digital intelligence to support non-kinetic missions aimed at deterring and de-escalating conflicts. The company specializes in developing advanced machine learning techniques to ensure access to mission-relevant data, building tools to counter malign influence, and enhancing maritime domain awareness using open-source and targeted data collection techniques. Vannevar Labs is dedicated to quickly iterating with national security partners to meet urgent and dynamic security challenges, positioning its solutions to address the strategic competition for legitimacy and influence in the modern geopolitical landscape.
vannevarlabs.com • HQ: Washington, United States • AI Agents • Homeland Security • National Security
HQ: Washington, United States • AI Agents • Homeland Security • National Security
Top 25% payVerified live · 1 day ago 4 days ago

Senior Software Engineer, Search

$150k – $215k per year • Senior • 7+ years exp • Remote (United States) • Senior
ElasticSearch
OpenSearch
AI/ML
NLP
Tokenization
AI Agents
Apply
$143k – $237k per year (Estimated) • Senior • 5+ years exp • Remote (United States) • Full-Time • TS/SCI • Senior
PostgreSQL
Redis
AI/ML
AI Agents
DevOps
Platform Engineering
Amazon S3
Apply
Top 25% payVerified live · 1 day ago 2 months ago

Senior Software Engineer, Full-Stack - Security Platform

$150k – $215k per year • Senior • 7+ years exp • Remote (United States) • Senior
Java
Node JS
Python
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
AI Agents
Frontend
React.js
Cybersecurity
Keycloak
Apply
Report
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.