Backend Developer Jobs in Saint Louis

Backend Developer jobs in Saint Louis hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $190,082/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Saint Louis
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Quantum

SignalFire
signalfire.com
SignalFire is the first venture capital firm built from the ground up as a technology company. The company invests in leaders with an uncommon passion, offering unprecedented data, advice, and access from seed to scale. With a hybrid technology an...
signalfire.com • HQ: New York, United States • Data & Analytics • Financial Services • Venture Capital
HQ: New York, United States • Data & Analytics • Financial Services • Venture Capital
Top 25% payVerified live · 9 hours ago 28 days ago

Principal Software Engineer - VC Backed Startups
$170k – $270k per year • Lead • 8+ years exp • Remote (United States) • Full-Time • Principal
Go
JavaScript
Node JS
Python
Ruby
TypeScript
Python
Django
FastAPI
Flask
Ruby
Ruby on Rails
Databases
Apache Kafka
DynamoDB
ElasticSearch
Firestore
MySQL
PostgreSQL
RabbitMQ
Redis
Frontend
Angular
GraphQL
React.js
Svelte
Vue.js
DevOps
Amazon EC2
AWS
AWS Lambda
Azure
CI/CD
Docker
GCP
GitHub Actions
Jenkins
Kubernetes
Rest API
Terraform
WebSockets
Amazon S3
GitHub
Apply
Verified live · 9 hours ago 28 days ago

Forward Deployed Engineer (FDE) - VC Backed Startups
≈ $110k – $199k per year (Estimated) • Middle • 3+ years exp • New York • Remote (United States) • Full-Time • Middle
C++
Go
JavaScript
Node JS
Python
TypeScript
Databases
Apache Kafka
Databricks
ElasticSearch
PostgreSQL
Redis
Snowflake
AI/ML
Spark
RAG
Frontend
GraphQL
React.js
DevOps
AWS
Azure
Docker
GCP
GitHub Actions
Kubernetes
Rest API
Terraform
GitHub
Apply
≈ $172k – $285k per year (Estimated) • Staff+ • 5+ years exp • Remote (United States) • Visa sponsorship • Bachelor's Degree • Staff
Go
JavaScript
Node JS
Python
Ruby
Java
Python
Django
FastAPI
Flask
Ruby
Ruby on Rails
Java
Spring Boot
Databases
Apache Kafka
DynamoDB
ElasticSearch
Firestore
MySQL
PostgreSQL
RabbitMQ
Redis
Frontend
GraphQL
DevOps
Amazon EC2
AWS
AWS Lambda
Azure
CI/CD
Docker
GCP
GitHub Actions
Google Cloud Run
Jenkins
Kubernetes
Rest API
Terraform
WebSockets
Amazon S3
GitHub
Apply
Report

Acorns
acorns.com
Acorns is an American fintech and financial services company based in Irvine, California specializing in micro-investing and robo advice. As of year 2020, Acorns had 8.2 million customers.
acorns.com • Irvine • Personal Finance • Data & Analytics • Financial Services
Irvine • Personal Finance • Data & Analytics • Financial Services
$175k – $206k per year • Equity • Senior • Irvine • Remote (United States) • Visa sponsorship • Bachelor's Degree • Senior
Kotlin
Python
Swift
TypeScript
JavaScript
AI/ML
Claude
Copilot
Frontend
React.js
Mobile
React Native
Apply
$175k – $206k per year • Equity • Senior • Remote (United States) • Full-Time • Senior
Kotlin
Python
Swift
TypeScript
JavaScript
AI/ML
Claude
Copilot
Frontend
React.js
Mobile
React Native
Apply
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WHOOP
whoop.com
Founded in 2012, WHOOP is a human performance company known for its screenless wearable fitness tracker that continuously monitors physiological metrics like strain, recovery, and sleep. The platform uses advanced sensors to translate biometrics - such as heart rate variability and body temperature - into actionable daily guidance for performance optimization. Operating primarily on a subscription model, the company serves elite athletes, tactical personnel, and general consumers seeking personalized health and wellness analytics.
whoop.com • HQ: Boston, United States • Consumer Electronics • Health & Medical Electronics
HQ: Boston, United States • Consumer Electronics • Health & Medical Electronics
≈ $140k – $232k per year (Estimated) • Senior • Boston • Remote (India, United States) • Relocation • Visa sponsorship • Bachelor's Degree • Senior
Java
Databases
Apache Kafka
PostgreSQL
DevOps
AWS
Analytics
A/B Testing
Apply
≈ $140k – $233k per year (Estimated) • Equity • Senior • Boston • Remote (India, United States) • Relocation • Visa sponsorship • Bachelor's Degree • Senior
Java
Databases
Apache Kafka
PostgreSQL
Apply
$125k – $175k per year • Equity • Middle • 2+ years exp • Boston • Remote (India, United States) • Relocation • Visa sponsorship • Bachelor's Degree • Full-Time • Middle
JavaScript
TypeScript
Databases
PostgreSQL
Frontend
React.js
Apply
Report

Crusoe
crusoeenergy.com
Crusoe (formerly Crusoe Energy Systems) is an energy-first AI infrastructure and cloud computing company headquartered in Denver, Colorado. The company specializes in building and operating high-performance AI data centers powered by stranded, wasted, or underutilized energy sources - such as flared natural gas from oil fields and surplus renewable power.
crusoeenergy.com • HQ: Denver, United States • Hardware • AI Infrastructure • Information Technology • Data Centers • 1001-5000 employees
HQ: Denver, United States • Hardware • AI Infrastructure • Information Technology • Data Centers • 1001-5000 employees
Top 25% pay 28 days ago

Software Engineer II (DCIE)
$140k – $165k per year • Equity • Middle • 2+ years exp • Remote (United States) • Visa sponsorship • Bachelor's Degree • Middle
Java
Python
Rust
AI/ML
AI Agents
PyTorch
NCCL
DevOps
GCP
Kubernetes
Apply
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Natera
natera.com
Natera is a global leader in cell-free DNA testing and molecular diagnostics headquartered in Austin, Texas. The company specializes in personalized genetic solutions across three core medical fields: oncology, women's health, and organ health.
natera.com • Denver • Portland • Houston • Pleasanton • Austin • Diagnostics • Health Care • Molecular Diagnostics
Denver • Portland • Houston • Pleasanton • Austin • Diagnostics • Health Care • Molecular Diagnostics
$159k per year • Senior • 5+ years exp • Remote (United States) • Full-Time • Senior
Python
TypeScript
JavaScript
SQL
Python
FastAPI
Pydantic
Uvicorn
Databases
Snowflake
Amazon Redshift
MySQL
PostgreSQL
AI/ML
dbt
Pandas
Frontend
React.js
Material UI
Vite
DevOps
AWS
AWS CDK
AWS Fargate
AWS Lambda
Amazon ECS
Amazon S3
CI/CD
Docker
GitLab CI
Rest API
GitLab
Cybersecurity
Okta
Management
Jira
Slack
QA
Playwright
Pytest
Vitest
Apply
Verified live · 3 hours ago 2 months ago

Forward Deployed AI Solutions Engineer
$106k – $132k per year • Remote (United States)
Python
SQL
AI/ML
AI Agents
LLM
RAG
Function Calling
Human-in-the-Loop
LLM Guardrails
Model Context Protocol
AWS Bedrock
Claude
CrewAI
LangChain
OpenAI Codex
DevOps
AWS
Cybersecurity
Least Privilege
HIPAA
SOC 2
Apply
Verified live · 3 hours ago 2 months ago

Staff Forward Deployed AI Solutions Engineer
$152k – $190k per year • Staff+ • Remote (United States) • Staff
Python
SQL
AI/ML
AI Agents
LLM
RAG
Function Calling
Human-in-the-Loop
LLM Guardrails
Model Context Protocol
AWS Bedrock
Claude
CrewAI
LangChain
OpenAI Codex
DevOps
AWS
Cybersecurity
Least Privilege
HIPAA
SOC 2
Apply
Report

Cority
cority.com
Cority is a leading provider of environmental, health, safety, and sustainability (EHS&S) software solutions. Our platform helps organizations manage their EHS&S risks and compliance obligations, improve employee safety, and reduce their environmental impact. Our comprehensive suite of EHS&S solutions includes: Incident management Risk assessment and management Compliance tracking and reporting Training and communication Sustainability reporting We are committed to helping organizations build a safer and more sustainable future.
cority.com • London • Toronto • Science & Engineering • Environmental Science • Software
London • Toronto • Science & Engineering • Environmental Science • Software
≈ $135k – $224k per year (Estimated) • Senior • 4+ years exp • Remote (United States) • Visa sponsorship • Bachelor's Degree • Senior
JavaScript
Python
SQL
TypeScript
C#
C#
.NET
Entity Framework Core
Databases
PostgreSQL
Apache Kafka
RabbitMQ
AI/ML
AI Agents
Claude
Claude Code
Copilot
Cursor
RAG
Model Context Protocol
Frontend
Angular
React.js
DevOps
GitHub
AWS
Azure
Docker
Apply
Report

First American
firstam.com
First American Financial Corporation is a premier provider of title, settlement and risk solutions for real estate transactions. With its combination of financial strength and stability built over more than 130 years, innovative proprietary technologies, and unmatched data assets, the company is leading the digital transformation of its industry. First American also provides data products to the title industry and other third parties; valuation products and services; mortgage subservicing; home warranty products; banking, trust and wealth management services; and other related products and services.
firstam.com • Los Angeles • Baltimore • San Diego • Houston • Bakersfield • PropTech • Financial Services • Insurance
Los Angeles • Baltimore • San Diego • Houston • Bakersfield • PropTech • Financial Services • Insurance
Verified live · 6 hours ago 28 days ago

Full Stack Senior Software Engineer (Remote in CA)
$129k – $172k per year • Equity • Senior • 5+ years exp • Santa Ana • Remote (United States) • Bachelor's Degree • Full-Time • Senior
JavaScript
Python
Ruby
SQL
TypeScript
Ruby
Ruby on Rails
Databases
Azure Cosmos DB
MySQL
PostgreSQL
AI/ML
LLM
RAG
AI Agents
OpenAI
Frontend
npm
React.js
DevOps
AWS
Azure
Azure DevOps
CI/CD
Docker
Git
Kubernetes
OpenTelemetry
Rest API
Vector
GitHub
GitLab
Apply
Report

Thiswaycompany
thiswaycompany.com
thiswaycompany.com • Yonkers • Hanover • Newark • Allentown • Los Angeles • Artificial Intelligence • Professional Services • Human Resources
Yonkers • Hanover • Newark • Allentown • Los Angeles • Artificial Intelligence • Professional Services • Human Resources
Verified live · 11 hours ago 28 days ago

Software Engineer
$95k – $120k per year • Remote (United States) • Full-Time
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
React.js
DevOps
AWS
CloudFormation
Docker
Git
Terraform
GitHub
Apply
Verified live · 11 hours ago 3 months ago

Distributed Systems Engineer
≈ $135k – $276k per year (Estimated) • Remote (United States) • Full-Time
Go
Rust
DevOps
HPC
Apply
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Reframe Systems
reframesystems.com
Reframe Systems is a construction technology company based in Andover, Massachusetts, and founded in 2022. The company develops a housing platform that utilizes robotics, physical AI, and modular microfactories to design and manufacture climate-resilient homes. It operates as a vertically integrated design-build partner, serving developers and homeowners across the United States with a focus on the New England and Southern California markets.
reframesystems.com • HQ: Andover, United States • Artificial Intelligence • Industrial Automation • Manufacturing • Construction Robotics • Robotics • PropTech • Residential Real Estate • Real Estate • Est. 2022
HQ: Andover, United States • Artificial Intelligence • Industrial Automation • Manufacturing • Construction Robotics • Robotics • PropTech • Residential Real Estate • Real Estate • Est. 2022
≈ $137k – $227k per year (Estimated) • Senior • 7+ years exp • Remote (United States) • Visa sponsorship • Bachelor's Degree • Senior
Python
TypeScript
DevOps
CI/CD
Game Dev
Pure Data
Apply
≈ $159k – $265k per year (Estimated) • Staff+ • 5+ years exp • Remote (United States) • Visa sponsorship • Bachelor's Degree • Staff
C#
Python
AI/ML
LLM Evaluation
DevOps
Amazon EC2
AWS Lambda
CI/CD
AWS
Design
SolidWorks
Apply
≈ $87k – $161k per year (Estimated) • Junior • 2+ years exp • Remote (United States) • Relocation • Visa sponsorship • Bachelor's Degree • Junior
C#
Python
AI/ML
Model Context Protocol
DevOps
CI/CD
Design
SolidWorks
Apply
Report

Prefect
prefect.io
Orchestrate workflows with Prefect. Connect AI agents to your tools and data with Horizon. Open-source foundations, production-ready platforms.
prefect.io • San Francisco • Software • Data & Analytics • Data Engineering
San Francisco • Software • Data & Analytics • Data Engineering
Top 25% pay 29 days ago

Senior Backend Engineer, Prefect Cloud
$194k – $242k per year • Equity • Senior • San Francisco • Remote (United States) • Visa sponsorship • Bachelor's Degree • Senior
C++
Go
Java
Python
Rust
Databases
ClickHouse
DuckDB
Presto
Trino
AI/ML
Claude
Claude Code
Copilot
Cursor
Flink
Prefect
Spark
Model Context Protocol
OpenAI Codex
Apply
Report

NCR Voyix
ncr.com
NCR Voyix is a global technology company headquartered in Atlanta, Georgia, with roots dating back to its founding in 1884 as the National Cash Register Company. The organization specializes in digital commerce solutions, providing point-of-sale software, hardware, and cloud-based platforms for the retail, restaurant, and banking sectors. Following its strategic separation from its ATM business in 2023, the company operates as an independent publicly traded entity serving a diverse international client base.
ncr.com • HQ: Atlanta, United States • Hardware • Business Process Automation (BPA) • Software • FinTech • Financial Services • Retail & Shop Systems • Commerce • POS Systems • 5000+ employees
HQ: Atlanta, United States • Hardware • Business Process Automation (BPA) • Software • FinTech • Financial Services • Retail & Shop Systems • Commerce • POS Systems • 5000+ employees
Top 25% pay 29 days ago

Software Engineer
$129k – $175k per year • Junior • 2+ years exp • Atlanta • Remote (United States) • Visa sponsorship • Bachelor's Degree • Senior
CI/CD
Git
Apply
Report

Basetwo
basetwo.com
Basetwo is a frontier Web3 advisory and investment firm, empowering early-stage projects with funding, expertise, and strategic support from experienced founders.
basetwo.com • Toronto • Vancouver • Calgary • Boston • Venture Capital • Blockchain & Crypto • Web3 & dApps
Toronto • Vancouver • Calgary • Boston • Venture Capital • Blockchain & Crypto • Web3 & dApps
≈ $100k – $195k per year (Estimated) • Equity • Senior • 5+ years exp • Toronto • Remote (Canada, United States) • Visa sponsorship • Master's Degree • Senior
JavaScript
Python
SQL
Databases
MySQL
PostgreSQL
Frontend
React.js
DevOps
AWS
Apply
Report

ScaleOps
scaleops.com
ScaleOps is a cloud infrastructure automation company headquartered in Tel Aviv, Israel, and founded in 2022. The company provides an autonomous platform for Kubernetes resource management that continuously optimizes CPU, memory, and GPU allocations for containerized workloads in real-time. It serves global enterprises and AI-driven organizations by reducing cloud expenditures and improving application performance through automated pod rightsizing and node consolidation.
scaleops.com • HQ: Tel Aviv, Israel • Artificial Intelligence • AI Infrastructure • Hardware • Cloud Management • Software • DevOps • Information Technology • Cloud Computing • 501-1000 employees • Est. 2022
HQ: Tel Aviv, Israel • Artificial Intelligence • AI Infrastructure • Hardware • Cloud Management • Software • DevOps • Information Technology • Cloud Computing • 501-1000 employees • Est. 2022
29 days ago

Software Engineer
≈ $108k – $196k per year (Estimated) • Middle • 4+ years exp • Remote (United States) • Bachelor's Degree • Middle
Helm
Istio
Kubernetes
Prometheus
Cybersecurity
Wiz
Apply
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DataCom Group
datacomgroup.com
The DataCom Group is a technology infrastructure firm that specializes in the design, installation, and servicing of structured communications cabling systems. Serving commercial, educational, and government facilities, the company delivers integrated low-voltage solutions, including IP paging, intercom, and emergency notification systems. Additionally, it provides advanced physical security technology - such as access control, CCTV surveillance, and intrusion detection - to help organizations maintain safe and connected facilities.
datacomgroup.com • HQ: Auckland, New Zealand • IT Consulting • Cloud Computing • Information Technology • 5000+ employees • Est. 1993
HQ: Auckland, New Zealand • IT Consulting • Cloud Computing • Information Technology • 5000+ employees • Est. 1993
≈ $102k – $229k per year (Estimated) • Lead • Remote (Philippines, Australia, New Zealand, United States) • Visa sponsorship • Master's Degree • Staff
C#
Java
PowerShell
Python
C#
.NET
DevOps
Azure
Bicep
Terraform
Apply
Report

RWX
rwx.com
RWX is the CI/CD platform for the agentic dev cycle. Validate changes without a commit. Give your agents sandboxes that share your build config and cache.
rwx.com • Cloud Computing • Information Technology • DevOps
Cloud Computing • Information Technology • DevOps
$215k – $250k per year • Staff+ • Remote (United States) • Full-Time • Staff
AI Agents
DevOps
CI/CD
eBPF
Platform Engineering
Apply
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Nuvei
nuvei.com
Unify pay-ins, payouts, and data on one intelligent platform. Accept every payment method, optimize performance locally, and scale globally with Nuvei.
nuvei.com • HQ: Montreal, Canada • FinTech • Financial Services • Payments • Est. 2003
HQ: Montreal, Canada • FinTech • Financial Services • Payments • Est. 2003
Verified live · 8 hours ago 29 days ago

Enterprise Architect - Chief Architect for Agentic Delivery
≈ $119k – $252k per year (Estimated) • Executive • Atlanta • Remote (United States) • Architect
AI Agents
Claude
Claude Code
Copilot
Hallucination
Model Context Protocol
Anthropic
Function Calling
Human-in-the-Loop
OpenAI
OpenAI Codex
RAG
DevOps
CI/CD
Platform Engineering
GitHub
Apply
Report

Tenchi Security
tenchisecurity.com
Tenchi launched an initial product called Zanshin that gives enterprise companies visibility into the security risks present in their critical third parties. Third parties play an instrumental role in today's business environment, and sensitive da...
tenchisecurity.com • São Paulo • Cloud Computing • Information Security • Cybersecurity
São Paulo • Cloud Computing • Information Security • Cybersecurity
29 days ago

Backend Engineer
≈ $25k – $87k per year (Estimated) • Junior • Remote (United States, Argentina, Brazil, Canada, Spain)
Python
SQL
Python
pySpark
Databases
PostgreSQL
AI/ML
Pandas
Spark
DevOps
AWS
CI/CD
CloudFormation
Docker
AWS Step Functions
Apply
Report

Ethena Labs
discord.gg
Ethena Labs is building the first crypto-based reward-accruing synthetic dollar protocol. Arthur Hayes is a founding advisor and the team has deep experience across traditional finance and crypto engineering from firms such as Cerberus, Wintermute, Flow Traders, Deribit, Paradigm, GMX, Zircuit, Chainlink and Kaiko. We are backed by every major exchange and trading entities in the space.
discord.gg • Anchorage • Blockchain & Crypto • Stablecoins • DeFi
Anchorage • Blockchain & Crypto • Stablecoins • DeFi
≈ $174k – $289k per year (Estimated) • Staff+ • Remote (United States) • Full-Time • Staff
Go
Java
Kotlin
Rust
TypeScript
Java
Testcontainers
Databases
Apache Kafka
NATS
PostgreSQL
AI/ML
Claude
Claude Code
AI Agents
Model Context Protocol
DevOps
gRPC
Web3
Ethena
Apply
Report

OpenAI
openai.com
OpenAI is an American artificial intelligence research and deployment company founded in 2015 with the mission of ensuring that artificial general intelligence benefits all of humanity. It develops the GPT family of large language models and turns them into consumer and developer products, including the ChatGPT assistant, the Sora video model, the Codex coding agent and a commercial API used by millions of developers. Structured as a public benefit corporation controlled by a non-profit foundation, the company is backed by Microsoft and SoftBank and operates from San Francisco.
openai.com • HQ: San Francisco, United States • Multimodal AI • AI Agents • Artificial Intelligence • Machine Learning • LLM & Generative AI • 1001-5000 employees • Est. 2015
HQ: San Francisco, United States • Multimodal AI • AI Agents • Artificial Intelligence • Machine Learning • LLM & Generative AI • 1001-5000 employees • Est. 2015
$293k – $385k per year • Equity • Senior • 5+ years exp • Mountain View • Remote (United States) • Visa sponsorship • Master's Degree • Full-Time • Staff
C++
Go
Java
Python
Rust
AI/ML
OpenAI
DevOps
Platform Engineering
Apply
Top 25% pay 30 days ago

Software Engineer, Ads Manager
$230k – $385k per year • Senior • 7+ years exp • Seattle • Remote (United States) • Relocation • Bachelor's Degree • Full-Time • Staff
Go
Python
TypeScript
Python
FastAPI
AI/ML
OpenAI
Apply
Top 25% pay 1 month ago

Software Engineer, API SDK
$293k – $385k per year • Senior • 7+ years exp • San Francisco • Remote (United States) • Relocation • PhD • Full-Time • Senior
Go
Java
Node JS
Python
Ruby
JavaScript
AI/ML
Multimodal AI
OpenAI
OpenAI Agents SDK
Apply
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Gusto
gusto.com
Gusto is a SaaS company that builds software to help businesses run core people operations, particularly payroll, benefits, and HR administration. Its products are designed to reduce the time and risk involved in paying employees, managing tax filings and compliance tasks, and handling the ongoing paperwork that comes with hiring and supporting a team. For job seekers, the focus is on practical, high‑stakes workflows where accuracy, security, and reliability matter, because customers depend on the platform to pay people correctly and on time.
gusto.com • HQ: San Francisco, United States • Financial Services • Payments • Professional Services • Human Resources • 51-200 employees
HQ: San Francisco, United States • Financial Services • Payments • Professional Services • Human Resources • 51-200 employees
Verified live · 2 hours ago 30 days ago

Staff Software Engineer, Time and Scheduling
$163k – $204k per year • Equity • Staff+ • 8+ years exp • New York • Remote (United States) • Internship • Staff
JavaScript
Ruby
Ruby
Ruby on Rails
Frontend
React.js
DevOps
Platform Engineering
Apply
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Backend Developer Jobs in Saint Louis
Frequently asked questions
How many Backend Developer jobs in Saint Louis are available on Alion?
There are currently 32 active listings from 11 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Saint Louis pay?
The average salary is around $190,082 per year based on the current listings.
Are remote options available for Backend Developer jobs in Saint Louis?
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 Saint Louis?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.