Backend Engineer
AGI, Inc.
Think Different. Build the Future. Our Mission Build everyday AGI. Trustworthy, consumer-grade agents that redefine human–AI collaboration for millions. Software shouldn’t wait for commands; it should partner with you, amplifying what you can do every single day. Why AGI, Inc. We’re a stealth team of elite ex-founders, Stanford and Berkeley AI researchers, and DeepMind alumni. With years of agent research, our platform runs live agent workflows with 99.9% reliability. We are supported by tier-1 investors who funded the first wave of AI giants; now they’re backing us to deliver the next, everyday AGI. If you see possibility where others see limits, read on. About the Role You’ll be one of the very first engineers shaping our core product and reimagining how people integrate AI companions into their day-to-day workflows. Expect to: Think from zero . Whiteboard the concept in the morning and demo it by evening. Own the stack . Backend, frontend, model orchestration, observability—whatever removes friction between idea and shipped product. Bridge research and delight. Sit beside scientists, translate breakthroughs into polished consumer experiences, and push them to production in days, not quarters. Define the bar. Establish the engineering, design, and reliability standards that every future hire will follow. Move markets. Your features won’t live in a sandbox—they’ll redefine how everyday people trust and collaborate with AI. You’ll be leading initiatives from conceptual design to production deployment, iterating quickly and putting real user feedback at the heart of product decisions. Key Responsibilities Craft end-to-end experiences: Design, code, and ship full-stack features—Python, TypeScript, Postgres, GPU infra—whatever it takes. Design MCP schemas: Create flexible, extensible JSON-based models that represent property context, room types, policies, branding, and more. Integrate core booking systems: Build robust connectors to PMS, CRM, messaging platforms, and booking engines Build internal and partner-facing APIs: Develop secure, scalable APIs that ingest, structure, and serve context to downstream AI agents. Engineer for trust: Single-digit-ms paths, sandboxed execution, telemetry everywhere—four nines or it’s broken. Invent agentic primitives: APIs, eval harnesses, and safety guardrails that let wild research ship to millions. Listen, iterate, delight: Sit with users, absorb the pain, and turn feedback into joy fast. You Bring Must Haves More than 5 yrs years of professional software engineering experience Strong backend fundamentals: REST API architecture, distributed systems, cloud deployment Proficiency with JavaScript, React, and other web technologies Proficiency with a backend language (we use Py C. B thon) Some experience with relational databases like Postgres/MySQL Deep experience integrating 3rd-party APIs and building data abstraction layers (bonus: hotel/hospitality tech exposure) Working knowledge of LLM pipelines, embeddings, and context windows (LangChain, OpenAI Assistants API, etc.) Proven ability to thrive in fast-growing, product-driven companies by effectively navigating loosely defined tasks and managing competing priorities or deadlines. Nice to Haves Familiarity with travel tech (e.g. Mews, SynXis, Oracle Opera, Cloudbeds) Experience designing or managing structured knowledge graphs or JSON schemas Experience with LLMs, prompt engineering, or function calling Former founder, or early engineer at a startup who has built a product from scratch is a plus Interest in AI/ML (direct experience not required) Our Culture All in, in person. Work moves faster face-to-face. Ship by default. Novel and polished can coexist, speed is the feature. One band, one sound. Radical candor, zero politics, help each other win. Our perks Fully covered medical, dental, and vision insurance for employees. ✈️ Relocation and immigration support. How to Apply Send us: A link—or 60-sec video—of something you built and why it matters. Your resume or LinkedIn. Two sentences on the hardest problem you’ve cracked. Every exceptional candidate hears back within 48 hours . We can’t wait to see what you’ve got and to welcome you to the AGI Inc. team! #J-18808-Ljbffr AGI, Inc.
- A dynamic tech company in San Francisco is seeking a Backend Developer to design, build, and maintain their server-side logic. The role requires ensuring high performance, scalability, and security of back-end services while collaborating with cross-functional teams. Candidates...Suggested
- ...and CTOs from companies like GitHub, Segment, Lookout, and Fly.io. About the Role We are looking for a top performing backend engineer that loves coding with Rust. You will get to solve interesting problems and technical challenges. We move fast, and speed of execution...SuggestedFull timePart time
- ...Sleeper is a rapidly growing platform for sports fans with messaging at its core. Our backend consists primarily of Elixir and ScyllaDB. We are looking for experienced engineers who have a passion for building multi-player games or messaging products to help us bring Sleeper...Suggested
- A leading technology firm in San Francisco is seeking a skilled Backend Developer to design, build, and maintain server-side logic for applications. The role requires proficiency in a back-end language such as Node.js, Python, or Java, as well as strong knowledge of databases...Suggested
- ...Job Title: Backend Engineer - Globalization & MCP Enablement Role Overview: We are looking for a Backend Engineer to help scale our retail store platform (within the ChatGPT app) from North America to Europe and LATAM. This role will focus on enabling global...Suggested
$150k - $250k
...Backend Engineer The backend is the product. The reliability of message delivery, the speed of AI responses, the depth of integrations, the transparency of AI decision-making, customers feel all of it even if they never see your code. You'll work directly with Punn...- ...things. Responsibilities Design and build scalable, high-performance infrastructure. Design architectures that allow both engineers and language models to quickly create, test, and deploy application code. Create reliable monitoring, logging, and alerting...
- ...Software Engineer Opportunity At Layer Over the last decade, a vibrant ecosystem of SMB software tools has emerged to help SMBs manage and run their businesses. These tools help SMBs with everything from payments to payroll, but accounting has lagged behind. Small...Work at office
- About Krea At Krea, we are building next-generation AI creative tools. We are dedicated to making AI intuitive and controllable for creatives. Our mission is to build tools that empower human creativity, not replace it. We believe AI is a new medium that allows...
- ...Kernel Backend Engineer Kernel is crazy fast, open source browser infrastructure for AI agents. We handle autoscaling, observability, and the messy details of web interaction, so developers can focus on what their agents do instead of how they do it. Teams at Cash...Relocation package
- ...international olympiad medalists, and former founders and we're fully in-person in our SF office. About The Role As a Backend Engineer at Phonic, you'll build the critical systems that power real-time voice AI at scale. You'll craft highly reliable, low-latency...Work at office
$110k - $270k
...Maxana is seeking an experienced Backend Engineer for a confidential client — a well-funded AI platform company used by ML teams globally. In this role you will own features end to end across APIs, CLI tooling, billing systems, and platform integrations. The team is small...Flexible hours2 days per week$130k - $400k
...Backend Engineer, Marketplace Location: San Francisco or New York City Company Stage: Late-Stage / Series C AI Infrastructure Company Office Type: On-site Salary: $130K–$400K + Equity Company Description We're representing a rapidly scaling AI infrastructure...Work at officeRelocation package$37 - $45 per hour
...Insight Global is seeking a for a Backend Engineer with Kubernetes infrastructure knowledge to own the design, automation, and reliability of stateful workloads running on Azure AKS. This role focuses on building highly available, selfhealing systems for databases and...$200k - $275k
...Backend Engineer HealthLeap processes billions of data points from hospital EHRs - labs, vitals, clinical notes, structured records - and turns them into real-time risk scores that clinicians rely on every morning. You'll build the backend systems and infrastructure...RelocationHome officeDay shift- ...across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana. About this role We are looking for a senior backend focused but full-stack capable engineer to work on building novel AI-powered product experiences. The ideal candidate will have experience working in close...Live in
- ...giving clinicians hours back each day to focus on what matters most - their patients. Position Overview We are seeking a Backend Engineer to design, build, and scale the core infrastructure powering Knowtex's AI-driven clinical documentation platform. You will...
- ...and HOF Capital. The team is based in San Francisco and includes engineers, designers, and operators from Airbnb, Palantir, Pinterest, IMC... ...environment Have experience with our tech stack: Go for backend services Kafka for large-scale data streaming Temporal...
- ...Responsibilities Design, develop, and maintain scalable backend services to help us serve millions of users daily. Work closely... ...team to launch new features. Collaborate with frontend engineers to design and implement RESTful APIs and shared API client libraries...Contract workWork experience placementWork at officeImmediate start
- ...Backend Engineer San Francisco, CA Being a Backend Engineer at a company smaller than 10 people is special. You'll have a ton of autonomy, be expected to own and build a significant part of the product, and design the product's growth for the next set of...Work at officeFlexible hours3 days per week
- ...Advanced Backend Engineer San Francisco Bay Area About Polyhedra Network We are building next-generation distributed systems that combine traditional backend engineering with modern AI capabilities. Our platform serves millions of users while maintaining high...Flexible hours
$160k - $220k
...- $220,000 base + equity (0.1%-0.3%) Position Overview An innovative, AI-driven technology organization is seeking a Backend Engineer to help build the next generation of real-time, intelligent user research platforms. This role focuses on developing scalable...Full timeWork at office$180k - $240k
...Type Full time Location Type Remote Department Engineering Compensation ~$180K – $240K • Offers Equity ABOUT FATHOM... ...but mighty team. ROLE OVERVIEW We are looking for a backend engineer who is passionate about improving reliability, scalability...Full timeRemote work$200k - $250k
...Founding Backend Engineer, On-site - San Francisco, CA Schedule: In office, five days per week A well funded seed stage AI company is building advanced agentic systems that automate complex workflows inside real enterprise software. The team is developing the platform...Work at officeImmediate start- ...Backend Engineer San Francisco About Navier AI Navier AI is building the first autonomous engineering agents. AI systems that can design, simulate, and optimize complex products to achieve breakthrough levels of performance. Our mission is to enable engineers...
- ...Backend Engineer Own the backend that powers Mem0's memory platform. You'll design clean REST APIs, model data across relational and graph stores, and operate services in production. When customers hit issues, you'll chase them down to root cause, ship fixes, and harden...Work at officeRemote work
$160k - $230k
...the Models API: a unified interface for accessing training, evaluation, and deployment data across raw, transformed, and feature-engineered layers Ensure backwards compatibility and feature versioning across constantly evolving schemas Build scalable pipelines for...Work at officeFlexible hours$160k - $200k
...Founding Backend Engineer Client is a fast-growing social shopping platform co-founded by Phoebe Gates and Sophia Kianni. The platform currently serves over 350,000 users and boasts a 90% retention rate. Phia combines community, personalization, and AI-driven recommendations...Full timeH1bRelocationVisa sponsorshipRelocation packageNight shift- ...Software Engineer Opportunity At Frec We created Frec to expand the possibilities for everyone and their money. We're a tight team... ...build a world-class financial platform. What You Will Do: Backend Engineering: You will be working with a small team of...Work at officeVisa sponsorshipFlexible hours
$185k - $225k
...provides the infrastructure to make your company's identity and access management secure, reliable, and scalable. As an Experienced Backend Engineer on the Product Engineering team, you'll partner with leadership to ensure that our product experiences are truly best-in-class...Full timeWork at office3 days per week
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Backend Engineer. Be the first to apply!
- entry level back-end developer San Francisco, CA
- backend python developer San Francisco, CA
- remote back end developer San Francisco, CA
- back-end developer San Francisco, CA
- senior backend developer San Francisco, CA
- backend software engineer San Francisco, CA
- lead backend developer San Francisco, CA
- backend intern San Francisco, CA
- backend .net developer San Francisco, CA
- entry level back-end developer

