Backend Developer Jobs in United States

Backend Developer jobs in United States hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $232,395/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

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

Helium
tryhelium.com
Helium is a Y Combinator-backed (S24) software company developing AI-driven paywall management, upsell personalization, and conversion rate optimization platforms for consumer mobile applications. Headquartered in San Francisco, the startup enables mobile product and growth teams to dynamically design, test, and deploy in-app paywalls and subscription monetization flows without writing native code or waiting for app store release approval cycles.
tryhelium.com • San Francisco • 1-10 employees
San Francisco • 1-10 employees
Top 25% payVerified live · 3 hours ago 4 days ago

Founding Design Engineer
$150k – $200k per year • Equity 0.5–1% • Junior • 1+ year exp • In office (San Francisco, United States) • Relocation • Bachelor's Degree • Full-Time • Junior
TypeScript
Go
Databases
ClickHouse
Supabase
AI/ML
OpenAI
Cursor
Frontend
React.js
Next.js
shadcn/ui
Tailwind CSS
Zustand
Mobile
Flutter
DevOps
Fly.io
Apply
Top 25% payVerified live · 3 hours ago 4 days ago

Founding Sr Full-Stack Engineer
$150k – $250k per year • Equity 0.5–1.5% • Senior • 3+ years exp • In office (San Francisco, United States) • Bachelor's Degree • Full-Time • Senior
Go
Dart
JavaScript
TypeScript
Databases
ClickHouse
Supabase
AI/ML
OpenAI
Cursor
LLM
Frontend
Next.js
React.js
Radix UI
shadcn/ui
Tailwind CSS
Zustand
Mobile
Flutter
DevOps
Fly.io
Apply
Top 25% payVerified live · 3 hours ago 4 days ago

Founding Full-Stack Engineer
$125k – $200k per year • Equity 0.5–1% • Junior • 1+ year exp • In office (San Francisco, United States) • Bachelor's Degree • Full-Time • Junior
Go
Dart
JavaScript
TypeScript
Databases
ClickHouse
Supabase
AI/ML
OpenAI
Cursor
LLM
Frontend
Next.js
React.js
Radix UI
shadcn/ui
Tailwind CSS
Zustand
Mobile
Flutter
DevOps
Fly.io
Apply
Report

CreateFuture
createfuture.com
CreateFuture is an AI transformation and software engineering partner that builds digital products, platforms, and AI-native solutions for enterprise clients. Headquartered in Edinburgh, Scotland, the company assists organizations across sectors like fintech, energy, and government in modernizing legacy technology and scaling intelligent workflows. Its services span business strategy, cloud infrastructure, customer experience design, and data engineering to drive digital growth.
createfuture.com • HQ: Edinburgh, United Kingdom • Commerce • Digital Goods • 501-1000 employees • Est. 2010
HQ: Edinburgh, United Kingdom • Commerce • Digital Goods • 501-1000 employees • Est. 2010
Verified live · 1 day ago 4 days ago

Technical Lead (.NET/AWS) - Manchester
≈ $92k – $185k per year (Estimated) • Lead • In office (Manchester, United States) • Staff
JavaScript
C#
C#
.NET
Frontend
Next.js
React.js
DevOps
AWS
CI/CD
Terraform
Apply
Open 109 daysVerified live · 1 day ago 4 months ago

Senior Software Engineer (.NET)
≈ $91k – $165k per year (Estimated) • Senior • In office (Manchester, United States) • Senior
JavaScript
C#
C#
.NET
Frontend
Next.js
React.js
DevOps
AWS
Terraform
CI/CD
Apply
Report

Gauge
withgauge.com
Track, analyze, and improve your brand's presence across ChatGPT, Gemini, Perplexity, and AI search. Complete toolkit for AI visibility and GEO optimization.
withgauge.com • San Francisco • Artificial Intelligence • Search Engine Optimization (SEO) • Sales & Marketing • 11-50 employees
San Francisco • Artificial Intelligence • Search Engine Optimization (SEO) • Sales & Marketing • 11-50 employees
Top 25% payVerified live · 3 hours ago 4 days ago

Founding Engineer
$170k – $220k per year • Equity 0.5–1% • Middle • 3+ years exp • In office (San Francisco, United States) • Full-Time • Middle
Python
JavaScript
Python
Django
Databases
PostgreSQL
AI/ML
AI Agents
Claude
Claude Code
Cursor
LLM
OpenAI Codex
Frontend
React.js
Management
Slack
Apply
Report

Thera
getthera.com
Thera is a Y Combinator-backed financial technology and human resource operations platform built for global teams and distributed enterprises. The platform unifies global payroll, accounts payable/receivable (AP/AR), international contractor management, and Employer of Record (EOR) services into a single unified workspace. Through its infrastructure, Thera enables companies to run US 50-state W-2 payroll, onboard full-time employees and international contractors in 135+ countries with locally compliant contracts, manage spend, and administer health benefits.
getthera.com • New York • 51-200 employees
New York • 51-200 employees
Verified live · 3 hours ago 4 days ago

Staff Engineer
$100k – $250k per year • Equity 0–0.5% • Staff+ • 3+ years exp • In office (New York, United States) • Full-Time • Staff
Java
Kotlin
TypeScript
Apply
Top 25% payVerified live · 3 hours ago 4 days ago

Senior Software Engineer
$120k – $250k per year • Senior • 3+ years exp • Remote (United States) • Full-Time • Senior
Kotlin
TypeScript
Frontend
Next.js
React.js
DevOps
AWS
Apply
Top 25% payVerified live · 3 hours ago 4 days ago

Senior Software Engineer - NYC
$120k – $250k per year • Senior • 3+ years exp • In office (New York, United States) • Full-Time • Senior
Kotlin
TypeScript
Frontend
Next.js
React.js
DevOps
AWS
Apply
Report

Vector Legal
vectorlegal.com
Vector Legal is a Y Combinator-backed, AI-native law firm and software platform engineered for technology startups, venture capital firms, and growth-stage companies. The firm combines human legal counsel with proprietary artificial intelligence to deliver full-service legal workflows. Through its software platform (VectorOS), the company automates routine legal processes, including AI contract review, equity and dilution tracking, document drafting, interactive legal document queries, and investor-ready data room maintenance.
vectorlegal.com • San Francisco • Financial Services • Venture Capital • Professional Services • Legal Services • 11-50 employees
San Francisco • Financial Services • Venture Capital • Professional Services • Legal Services • 11-50 employees
Top 25% payVerified live · 3 hours ago 4 days ago

Founding Engineer
$120k – $180k per year • Equity 0.5–1.5% • Middle • 3+ years exp • In office (San Francisco, United States) • Full-Time • Middle
Python
TypeScript
AI/ML
AI Agents
Frontend
React.js
Apply
Report

Adam
adam.new
Adam is a Y Combinator-backed AI copilot and workspace platform engineered to automate physical product development and supply chain workflows for hardware teams. The software integrates directly into enterprise computer-aided design (CAD) suites (including SolidWorks, Onshape, and Autodesk Fusion), Product Lifecycle Management (PLM) systems like Arena, electronic component distributors (Digi-Key, McMaster-Carr), and workplace messaging tools.
adam.new • San Francisco • Artificial Intelligence • Code Intelligence • 11-50 employees
San Francisco • Artificial Intelligence • Code Intelligence • 11-50 employees
Top 25% payVerified live · 16 min ago 4 days ago

Founding Research Engineer
$160k – $250k per year • Equity 1–2% • Middle • 3+ years exp • In office (San Francisco, United States) • Full-Time • Middle
Python
AI/ML
PyTorch
DevOps
AWS
Apply
Top 25% payVerified live · 16 min ago 4 days ago

Founding Engineer
$160k – $250k per year • Equity 1–2% • Junior • 1+ year exp • In office (San Francisco, United States) • Full-Time • Junior
JavaScript
Python
SQL
TypeScript
Frontend
Next.js
React.js
Apply
Report

Banner
withbanner.com
Banner is a specialized software company providing a capital expenditure management platform tailored for commercial real estate owners, operators, and developers. The platform centralizes multi-year capital planning, vendor bidding, automated lender draws, and project execution while integrating with major property management and accounting systems.
withbanner.com • Commercial Real Estate • Real Estate • PropTech
Commercial Real Estate • Real Estate • PropTech
Verified live · 21 min ago 4 days ago

Senior Software Engineer
≈ $141k – $234k per year (Estimated) • Equity 0.2–0.4% • Senior • 6+ years exp • Remote (United States) • Full-Time • Senior
Node JS
Frontend
React.js
Apply
Report

Athelas
athelas.com
Athelas is a healthcare technology enterprise that provides an integrated, AI-driven platform designed to streamline clinical operations and remote patient care. The platform features ambient AI medical scribes, automated revenue cycle management, and electronic health record integrations that simplify documentation and billing for medical practices. Additionally, it offers FDA-cleared remote patient monitoring devices and diagnostic tools that enable clinicians to track vital signs and blood markers from home in real time.
athelas.com • San Francisco • Mountain View • Gurgaon • Dhaka • Health Care • Artificial Intelligence • Digital Health • 201-500 employees
San Francisco • Mountain View • Gurgaon • Dhaka • Health Care • Artificial Intelligence • Digital Health • 201-500 employees
Verified live · 21 min ago 4 days ago

Forward Deployed Engineer
≈ $141k – $287k per year (Estimated) • In office (Mountain View, United States) • Bachelor's Degree • Full-Time
JavaScript
Python
SQL
Frontend
React.js
Apply
Verified live · 21 min ago 4 days ago

Software Engineer, Athelas Home
≈ $126k – $257k per year (Estimated) • Remote (United States) • Bachelor's Degree • Full-Time
Python
Python
Flask
Databases
PostgreSQL
AI/ML
Computer Vision
Frontend
React.js
DevOps
Docker
Kubernetes
Apply
Verified live · 21 min ago 4 days ago

Senior Fullstack Engineer, PatientKeeper
≈ $137k – $228k per year (Estimated) • Senior • 5+ years exp • Remote (United States) • Bachelor's Degree • Full-Time • Senior
Java
Java
Spring Boot
Databases
PostgreSQL
Frontend
React.js
DevOps
AWS
Azure
GCP
Rest API
Apply
Report

Turing Labs
turingsaas.com
Turing Labs is a Y Combinator and Insight Partners-backed AI software platform engineered to accelerate product development, formulation, and regulatory compliance for Consumer Packaged Goods (CPG) companies. Its proprietary "Growth OS" leverages domain-trained AI agents - including its Luna optimization engine - to unify commercial strategy, formulation histories, financial targets, and ingredient safety standards within a single predictive system.
turingsaas.com • Palo Alto • San Francisco • Consumer Goods • Artificial Intelligence • Software • 51-200 employees
Palo Alto • San Francisco • Consumer Goods • Artificial Intelligence • Software • 51-200 employees
Top 25% payVerified live · 24 min ago 4 days ago

Senior Software Engineer - Full Stack
$200k – $250k per year • Equity 0.1–0.4% • Senior • 3+ years exp • In office (Palo Alto, United States) • Full-Time • Senior
TypeScript
JavaScript
AI/ML
LangChain
AI Agents
ChatGPT
Embeddings
LLM
Frontend
React.js
DevOps
AWS
Apply
Top 25% payVerified live · 24 min ago 4 days ago

Senior Software Engineer - Former founder preferred
$130k – $210k per year • Equity 0.1–0.4% • Senior • 3+ years exp • In office (Palo Alto, United States) • Full-Time • Senior
TypeScript
Databases
PostgreSQL
AI/ML
Claude
Claude Code
Embeddings
LangChain
LLM
OpenAI Codex
Frontend
React.js
DevOps
AWS
Apply
Report

Accord
inaccord.com
Transform sales best practices into unavoidable playbooks. Empower reps to win like top sellers with AI-powered revenue execution. Increase deal size by +40%.
inaccord.com • San Francisco • Professional Services • Human Resources • Artificial Intelligence • 11-50 employees
San Francisco • Professional Services • Human Resources • Artificial Intelligence • 11-50 employees
Top 25% payVerified live · 1 hour ago 4 days ago

Software Engineer, Cloud Infrastructure
$170k – $240k per year • Middle • 3+ years exp • Remote/Hybrid (San Francisco, United States) • Full-Time • Middle
AWS
Azure
CI/CD
GCP
Kubernetes
Terraform
Apply
Report

Kilvin
kilvin.ai
Kilvin is a Y Combinator-backed, AI-native software platform and development service that builds custom internal tools, dashboards, and automated workflows for enterprise teams. The platform combines an embedded AI build agent with smart file indexing, connected databases, and fine-grained access controls, enabling the rapid creation of tailored applications without requiring companies to replace their existing software stack.
kilvin.ai • Denver • New York • 51-200 employees
Denver • New York • 51-200 employees
Top 25% payVerified live · 1 hour ago 4 days ago

Forward-Deployed Engineer
$120k – $180k per year • Equity 0–0.5% • Middle • 3+ years exp • Remote/Hybrid (New York, United States) • Full-Time • Middle
TypeScript
Node JS
Node JS
Prisma
Databases
PostgreSQL
AI/ML
AI Agents
LLM
Frontend
React.js
DevOps
Git
AWS
Terraform
Apply
Top 25% pay 2 months ago

Forward-Deployed Engineer
$120k – $180k per year • Middle • 3+ years exp • Remote/Hybrid (Denver, United States) • Full-Time • Middle
JavaScript
Node JS
TypeScript
Node JS
Prisma
Databases
PostgreSQL
AI/ML
LLM
Frontend
React.js
DevOps
AWS
Terraform
Apply
Report

Event Horizon Labs
ehl.markets
The AI lab for the science of markets.. From algo trading to reasoning-driven investing.
ehl.markets • San Francisco • Financial AI • Financial Services • Artificial Intelligence • 11-50 employees • Est. 2024
San Francisco • Financial AI • Financial Services • Artificial Intelligence • 11-50 employees • Est. 2024
Top 25% payVerified live · 2 hours ago 4 days ago

Founding Software Engineer
$150k – $200k per year • Equity 1–3% • Middle • 3+ years exp • In office (San Francisco, United States) • Full-Time • Middle
Python
DevOps
Kubernetes
Apply
Top 25% payVerified live · 2 hours ago 4 days ago

Founding Research Engineer
$150k – $200k per year • Equity 1–3% • Middle • 3+ years exp • In office (San Francisco, United States) • Full-Time • Middle
Python
AI/ML
PyTorch
Apply
Report

Tank Payments
tankpayments.com
Built for freight: instant carrier payments, automated payables & receivables, integrated banking. Get paid faster, reduce manual work, optimize cash flow.
tankpayments.com • Austin • FinTech • Financial Services • Payments
Austin • FinTech • Financial Services • Payments
Verified live · 2 hours ago 4 days ago

Software Engineer
$120k – $165k per year • Equity 0.1–0.2% • In office (Austin, United States) • Full-Time
Python
TypeScript
Databases
DynamoDB
Frontend
Next.js
React.js
Tailwind CSS
DevOps
AWS
AWS Lambda
Apply
Top 25% pay 30 days ago

Senior Software Engineer
$150k – $220k per year • Equity • Senior • 5+ years exp • In office (Austin, United States) • Bachelor's Degree • Full-Time • Senior
JavaScript
Python
TypeScript
Databases
DynamoDB
Frontend
Next.js
React.js
Tailwind CSS
DevOps
AWS
AWS Lambda
Apply
Top 25% pay 30 days ago

Software Engineer
$100k – $165k per year • Equity • Junior • 1+ year exp • In office (Austin, United States) • Bachelor's Degree • Full-Time • Senior
JavaScript
Python
TypeScript
Databases
DynamoDB
Frontend
Next.js
React.js
Tailwind CSS
DevOps
AWS
AWS Lambda
Apply
Report

Ohm
ohm.ai
Ohm is an enterprise AI platform purpose-built for hardware engineering labs to accelerate the development, testing, and validation of physical products. Designed for industries such as automotive, aerospace, battery manufacturing, consumer electronics, and data center infrastructure, the platform automatically ingests, normalizes, and contextualizes multi-modal test data across disparate lab equipment and supplier formats.
ohm.ai • San Francisco • Hardware • Science & Engineering • Test & Measurement • Artificial Intelligence
San Francisco • Hardware • Science & Engineering • Test & Measurement • Artificial Intelligence
Verified live · 2 hours ago 4 days ago

Full Stack Engineer
≈ $148k – $302k per year (Estimated) • In office (San Francisco, United States) • PhD • Full-Time
Python
TypeScript
AI/ML
AI Agents
Claude
Claude Code
Cursor
LLM
Time Series Forecasting
DevOps
CI/CD
Platform Engineering
Apply
Verified live · 2 hours ago 4 days ago

Forward Deployed Engineer, Battery Engineering
≈ $127k – $259k per year (Estimated) • San Francisco • Remote (United States) • Master's Degree • Full-Time
Python
AI/ML
Claude
Claude Code
Cursor
AI Agents
Apply
≈ $127k – $259k per year (Estimated) • San Francisco • Remote (United States) • Master's Degree • Full-Time
Python
AI/ML
Claude
Claude Code
Cursor
AI Agents
Apply
Report

Hestus
hestus.co
Hestus is AI-powered CAD software that speeds up hardware development.
hestus.co • San Mateo • CAD & PLM • Artificial Intelligence • 11-50 employees
San Mateo • CAD & PLM • Artificial Intelligence • 11-50 employees
Top 25% payVerified live · 2 hours ago 4 days ago

Senior Software Developer
$180k – $250k per year • Equity • Senior • 6+ years exp • In office (San Mateo, United States) • Full-Time • Senior
Python
SQL
C#
C#
.NET
Python
Django
Flask
DevOps
CI/CD
AWS
Apply
Report

Raycaster
raycaster.ai
Raycaster builds benchmark data, evaluation harnesses, and reference agents for consequential work across documents, spreadsheets, and tools.
raycaster.ai • New York • Data & Analytics • AI Agents • Artificial Intelligence • 11-50 employees
New York • Data & Analytics • AI Agents • Artificial Intelligence • 11-50 employees
Verified live · 2 hours ago 4 days ago

Founding Engineer (In-Person)
$100k – $160k per year • Equity 2–10% • Middle • 3+ years exp • In office (New York, United States) • Full-Time • Middle
Go
Rust
Python
TypeScript
AI/ML
LLM
LLM Guardrails
Embeddings
DevOps
GCP
Azure
AWS
GitHub
Apply
Report

Truewind
truewind.ai
Truewind AI agents convert source financial data into GL-ready entries, helping accounting teams close faster with stronger controls.
truewind.ai • San Francisco • Artificial Intelligence • Financial Services • Audit
San Francisco • Artificial Intelligence • Financial Services • Audit
Top 25% payVerified live · 2 hours ago 4 days ago

Senior Software Engineer
$170k – $220k per year • Equity 0.1–0.2% • Senior • 3+ years exp • In office (San Francisco, United States) • Full-Time • Senior
JavaScript
TypeScript
Databases
MySQL
PostgreSQL
AI/ML
LLM
Edge AI
OpenAI
Frontend
Material UI
Next.js
React.js
Vue.js
Apply
Top 25% payVerified live · 2 hours ago 4 days ago

Senior Software Engineer - Backend & Agent Platform
$220k – $260k per year • Equity 0.1–0.2% • Senior • 6+ years exp • In office (San Francisco, United States) • Full-Time • Senior
TypeScript
Databases
PostgreSQL
AI/ML
AI Agents
Frontend
Next.js
React.js
DevOps
AWS
Apply
Verified live · 2 hours ago 4 days ago

Staff Software Engineer
$200k – $250k per year • Equity 0.5–1% • Staff+ • 11+ years exp • In office (San Francisco, United States) • Full-Time • Staff
JavaScript
TypeScript
Databases
MySQL
PostgreSQL
AI/ML
LLM
Edge AI
OpenAI
Frontend
Material UI
Next.js
React.js
Vue.js
Apply
Report

Rivet
rivet.dev
Rivet is an open-source backend infrastructure platform engineered for stateful workloads, AI agent orchestration, and real-time interactive applications. Its core technology, Rivet Actors, provides long-running, lightweight execution primitives that co-locate in-memory state, WebSockets, queues, and durable execution workflows into a unified runtime.
rivet.dev • Information Technology • Database Management
Information Technology • Database Management
Top 25% payVerified live · 2 hours ago 4 days ago

Senior Software Engineer
$130k – $260k per year • Senior • 6+ years exp • Remote (United States) • Full-Time • Senior
C++
Go
Rust
TypeScript
Databases
ClickHouse
FoundationDB
NATS
PostgreSQL
SQLite
DevOps
WebSockets
GitHub
Apply
Verified live · 2 hours ago 4 days ago

Software Engineer
$80k – $150k per year • Remote (United States) • Full-Time
C++
Go
Rust
TypeScript
Databases
ClickHouse
FoundationDB
NATS
PostgreSQL
SQLite
DevOps
WebSockets
GitHub
Apply
Top 25% pay 17 days ago

Senior Software Engineer
$130k – $260k per year • Senior • Remote (United States) • Full-Time • Senior
C++
Go
Rust
TypeScript
Databases
ClickHouse
FoundationDB
NATS
PostgreSQL
SQLite
DevOps
WebSockets
GitHub
Apply
Report

Simbie AI
simbie.ai
Simbie AI is a healthcare technology platform providing clinically trained AI voice agents and automated administrative workflows for medical practices, clinics, and health systems. The platform operates as an AI-powered medical staff assistant, handling 24/7 patient communications - including inbound scheduling, outbound follow-up calls, prescription refills, pre-visit intake, and post-operative check-ins.
simbie.ai • New York • Artificial Intelligence • Health Care • AI Agents • Digital Health • 11-50 employees
New York • Artificial Intelligence • Health Care • AI Agents • Digital Health • 11-50 employees
Verified live · 2 hours ago 4 days ago

Forward Deployed Engineer
$110k – $150k per year • Middle • 3+ years exp • New York • Remote (United States) • Full-Time • Middle
Python
AI/ML
AI Agents
LLM
Mobile
Twilio
Apply
Report

Tasklet
tasklet.ai
Accelerate your entire company with AI agents you can delegate real work to. Connect your tools, automate workflows 24x7, and share agents & context across your team.
tasklet.ai • San Francisco • Embedded Systems • AI Agents • Cybersecurity • 11-50 employees
San Francisco • Embedded Systems • AI Agents • Cybersecurity • 11-50 employees
Top 25% payVerified live · 3 hours ago 4 days ago

Software Engineer — AI Infra
$225k – $425k per year • Equity 0.2–0.6% • Staff+ • 11+ years exp • In office (San Francisco, United States) • Full-Time • Principal
Kubernetes
Apply
Report
Backend Developer Jobs in United States
Frequently asked questions
How many Backend Developer jobs in United States are available on Alion?
There are currently 7747 active listings from 1529 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in United States pay?
The average salary is around $232,395 per year based on the current listings.
Are remote options available for Backend Developer jobs in United States?
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 United States?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.