Backend Developer Jobs in San Francisco

Backend Developer jobs in San Francisco hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $276,456/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

San Francisco
AI/ML
Software
Data
Security
DevOps & Cloud
Leadership
Product
Design
Fintech
Hardware & Chips
Defense
Aerospace
Biotech
Energy
Robotics
Automotive
MedTech
Science

Skild AI

skild.ai
skild.ai · HQ: Pittsburgh, United States · Foundation Models · Robotic Software & Control Systems · Robotics AI · 1001-5000 employees · Est. 2023 · Trust B · Hiring 53, 4 new
HQ: Pittsburgh, United States · Foundation Models · Robotic Software & Control Systems · Robotics AI · 1001-5000 employees · Est. 2023 · Trust B · Hiring 53, 4 new
Skild AI is building a general purpose robot brain that transfers across different machines and tasks rather than being trained for one robot at a time. Its models learn from a very large and diverse dataset of robot and human interaction, and the company has demonstrated locomotion, manipulation and inspection behaviours on multiple hardware platforms. The laboratory was founded by robotics faculty from Carnegie Mellon University and raised one of the largest rounds in embodied artificial intelligence.
No named decision-maker yet.
No careers mailbox known
Likely inactiveTop 25% pay Visa sponsor 2 years ago Long shot · 8%

Senior Software Engineer, Infrastructure

$100k – $300k per year · Senior · 3+ years exp · In office (San Mateo, San Francisco, Pittsburgh, United States) · Bachelor's Degree · Senior
C++
Java
Python
AI/ML
Machine Learning
DevOps
Linux
Apply
Likely inactiveTop 25% pay Visa sponsor 2 years ago Long shot · 8%

Software Engineer, AI Training and Infrastructure

$100k – $300k per year · Middle · 3+ years exp · In office (San Mateo, San Francisco, Pittsburgh, United States) · Bachelor's Degree · Middle
C++
Python
C++
TensorFlow C++
AI/ML
Machine Learning
JAX
TensorFlow
PyTorch
DevOps
CI/CD
GCP
Azure
AWS
+3
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Replo

replo.app
replo.app · HQ: San Francisco, United States · Custom Software Development · 11-50 employees · Est. 2021 · Startup · Hiring 2
HQ: San Francisco, United States · Custom Software Development · 11-50 employees · Est. 2021 · Startup · Hiring 2
Sell anything with Replo. Build, design, optimize, and operate your store, all through chat. Trusted by 91,000+ leading brands selling more on the Internet.
No named decision-maker yet.
No careers mailbox known
Open 773 daysTop 25% pay 2 years ago Long shot · 5%

Founding Engineer

$180k – $350k per year · In office (San Francisco, United States) · Full-Time
TypeScript
Databases
ClickHouse
AI/ML
Agentic Workflows
Claude Code
Design
Figma
Apply

DEUNA

deuna.com
deuna.com · Bogotá · San Francisco · Mexico City · E-commerce Platforms · Payment Processing & Gateways · 51-200 employees · Startup · Trust A · Hiring 16
Bogotá · San Francisco · Mexico City · E-commerce Platforms · Payment Processing & Gateways · 51-200 employees · Startup · Trust A · Hiring 16
The unified platform to grow and simplify commerce. The AI-powered platform to orchestrate global payments and accelerate commerce performance.
No named decision-maker yet.
No careers mailbox known
Open 780 daysVerified live · 2 hours ago Visa sponsor 2 years ago Long shot · 8%

Senior Fullstack Engineer

≈ $151k – $281k per year (Estimated) · Senior · Hybrid (San Francisco, United States) · Bachelor's Degree · Full-Time · Senior · English: C1
Go
TypeScript
PHP
PHP
Magento
DevOps
AWS
Management
Agile
Apply

Letta

letta.com
letta.com · HQ: San Francisco, United States · AI Development Tools · AI Agents · 1-10 employees · Est. 2023 · Startup · Trust B · Hiring 4
HQ: San Francisco, United States · AI Development Tools · AI Agents · 1-10 employees · Est. 2023 · Startup · Trust B · Hiring 4
Letta is a company founded in 2023 by University of California, Berkeley researchers behind the MemGPT project on long-term memory for language models. Its open-source framework and cloud service give agents persistent memory that survives beyond a context window, with tooling to inspect and edit what an agent remembers. The project is widely used by developers building assistants that must retain state over months.
No named decision-maker yet.
Careers mailbox is known
Open 788 daysVerified live · 1 hour ago Visa sponsor 2 years ago Long shot · 4%

Software Engineer, Agent Harness

≈ $144k – $310k per year (Estimated) · In office (San Francisco, United States) · Full-Time
TypeScript
SQL
Python
Databases
PostgreSQL
AI/ML
vLLM
Letta
Ollama
Ray
Anthropic
OpenAI
Spark
LLM
Frontend
Tailwind CSS
+5
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Complete

complete.ai
complete.ai · HQ: Billings, United States · HR & Payroll Software · 51-200 employees · Startup · Trust B · Hiring 6
HQ: Billings, United States · HR & Payroll Software · 51-200 employees · Startup · Trust B · Hiring 6
Complete is a software company building compensation infrastructure for teams, with fair and consistent workflows powered by real market data and clear analytics. Its platform is meant to make compensation understandable and trusted by everyone involved rather than hidden in spreadsheets. The company hires sales development, customer success, product design and full stack engineering staff and is based in the United States.
Thomas Murray · Executive Officer, Director · decision-maker
Michael Zabawa · Executive Officer · decision-maker
John Soares · Director · decision-maker
Stephen Zabawa · Executive Officer, Director · decision-maker
No careers mailbox known
Open 809 daysVerified live · 2 hours ago Visa sponsor 2 years ago Long shot · 8%

Founding Engineer

≈ $164k – $304k per year (Estimated) · Senior · In office (San Francisco, United States) · Full-Time
JavaScript
Python
Python
Django
Databases
PostgreSQL
AI/ML
Cursor
ChatGPT
Claude Code
Frontend
GraphQL
React Query
React.js
DevOps
Datadog
GitHub
Docker
Management
Linear
QA
Sentry
+7
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Bronco AI

bronco.ai
bronco.ai · HQ: San Francisco, United States · Custom Software Development · 1-10 employees · Est. 2022 · Startup · Trust B · Hiring 3
HQ: San Francisco, United States · Custom Software Development · 1-10 employees · Est. 2022 · Startup · Trust B · Hiring 3
AI for chip design and verification. Bronco debugs simulations, brings up testbenches, generates RTL, and closes coverage to win the race to tape-out.
No named decision-maker yet.
No careers mailbox known
Open 816 daysVerified live · 4 hours ago 2 years ago Long shot · 4%

Founding Software Engineer

≈ $145k – $312k per year (Estimated) · Equity · In office (San Francisco, United States) · Bachelor's Degree · Full-Time
C++
Python
AI/ML
LLM
Apply

Bubba Gump Shrimp Co

bubbagump.com
bubbagump.com · HQ: San Francisco, United States · Catering & Food Services · Seafood · Est. 1996 · Trust B · Hiring 3
HQ: San Francisco, United States · Catering & Food Services · Seafood · Est. 1996 · Trust B · Hiring 3
Bubba Gump Shrimp Co is a casual restaurant chain based on a motion picture property, serving creative seafood dishes inspired by the film Forrest Gump. It began in 1996 on Cannery Row in Monterey, California, and has 22 locations in the United States and 16 international locations. The company is based in the United States.
No named decision-maker yet.
No careers mailbox known
Open 827 daysVerified live · 1 hour ago 2 years ago Long shot · 3%

Software Engineer(New Grad)

≈ $104k – $215k per year (Estimated) · Junior · In office (San Francisco, United States) · Full-Time · Junior
Apply

OneSchema

oneschema.co
oneschema.co · HQ: San Francisco, United States · Machine Learning · Custom Software Development · 11-50 employees · Est. 2021 · Startup · Hiring 2
HQ: San Francisco, United States · Machine Learning · Custom Software Development · 11-50 employees · Est. 2021 · Startup · Hiring 2
Deploy AI agents to automate data intake, cleanup, and reconciliation across spreadsheets, files, and legacy systems, reducing manual operational overhead.
No named decision-maker yet.
No careers mailbox known
Open 847 daysVerified live · 3 hours ago 2 years ago Long shot · 6%

Senior Software Engineer

≈ $157k – $293k per year (Estimated) · Equity · Senior · 3+ years exp · In office (San Francisco, United States) · Full-Time · Senior
Rust
Ruby
TypeScript
SQL
AI/ML
AI Agents
DevOps
AWS
Apply

Letter AI

letter.ai
letter.ai · HQ: Chicago, United States · Sales Enablement · 51-200 employees · Startup · Hiring 10, 1 new
HQ: Chicago, United States · Sales Enablement · 51-200 employees · Startup · Hiring 10, 1 new
Empower your revenue teams to win more deals, faster. Get our all-in-one revenue enablement platform that unifies content, training, coaching, and buyer engagement.
No named decision-maker yet.
No careers mailbox known
Open 849 daysTop 25% pay Visa sponsor 2 years ago Long shot · 6%

Full Stack Engineer

$130k – $240k per year · Equity · Middle · 3+ years exp · Hybrid (San Francisco, United States) · Full-Time · Middle
TypeScript
JavaScript
Python
AI/ML
LLM
Frontend
Redux
React.js
DevOps
Terraform
AWS
Design
Figma
+1
Apply

Shakudo

shakudo.io
shakudo.io · San Francisco · Bengaluru · Toronto · Menlo Park · AI Development Tools · MLOps · 51-200 employees · Startup · Trust D · Hiring 12
San Francisco · Bengaluru · Toronto · Menlo Park · AI Development Tools · MLOps · 51-200 employees · Startup · Trust D · Hiring 12
Integrate AI in your business processes without giving up your intellectual property. Shakudo runs AI inside your own infrastructure, on your own data.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 3 hours ago 2 years ago Long shot · 5%

Senior Software Engineer - Platform Development

≈ $153k – $284k per year (Estimated) · Senior · In office (San Francisco, United States) · Full-Time · Senior
TypeScript
DevOps
Helm
Terraform
Windows
Linux
Kubernetes
Apply

HeyGen

heygen.com
heygen.com · HQ: Los Angeles, United States · Generative Video · 51-200 employees · Est. 2020 · Startup · Trust B · Hiring 18
HQ: Los Angeles, United States · Generative Video · 51-200 employees · Est. 2020 · Startup · Trust B · Hiring 18
HeyGen is a company founded in 2020 that generates presenter videos from text using synthetic avatars and cloned voices. Its translation feature re-voices existing footage in other languages while matching lip movement, which made it popular with marketing and training teams. The company reports fast revenue growth serving businesses that produce large volumes of localised video.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveTop 25% pay 2 years ago Long shot · 6%

Backend Engineer - Infrastructure

$180k – $240k per year · Junior · 2+ years exp · In office (Los Angeles, San Francisco, United States) · Bachelor's Degree · Junior
Python
Databases
MySQL
PostgreSQL
AI/ML
Computer Vision
Machine Learning
DevOps
GCP
Azure
AWS
Kubernetes
+1
Apply
Likely inactiveTop 25% pay 3 years ago Long shot · 8%

Fullstack Software Engineer

$180k – $215k per year · Middle · 3+ years exp · In office (San Francisco, United States) · Bachelor's Degree · Middle
JavaScript
Python
Go
TypeScript
Databases
MySQL
Frontend
React.js
DevOps
Rest API
GCP
Azure
AWS
+2
Apply
Likely inactiveTop 25% pay 3 years ago Long shot · 8%

Backend Engineer

$170k – $220k per year · Middle · 4+ years exp · In office (San Francisco, United States) · Bachelor's Degree · Middle
Python
C++
C++
OpenGL
Databases
MySQL
PostgreSQL
AI/ML
Computer Vision
Machine Learning
DevOps
Rest API
GCP
Azure
AWS
WebRTC
Kubernetes
+5
Apply
Machines can read this selection · checked 03:36 UTC
Backend Developer Jobs in San Francisco
Frequently asked questions
How many Backend Developer jobs in San Francisco are available on Alion?
There are currently 2367 active listings from 793 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in San Francisco pay?
The average salary is around $276,456 per year based on the current listings.
Are remote options available for Backend Developer jobs in San Francisco?
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 San Francisco?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.