Senior Software Engineer, Full Stack
Retell AI
ABOUT RETELL AI Retell AI is using first-principles thinking to reimagine the call center with cutting-edge voice AI. Thousands of companies now use Retell's AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. Backed by Y Combinator, Alt Capital, and other leading investors, we've scaled to $80M in ARR with a team of 50, up from $5M at the start of 2025, and are now valued at over $1.5B. Our vision for 2026 is to build a modern CX platform where entire contact centers are powered by AI. Instead of basic automation that needs constant human tuning, we're creating intelligent AI "workers" that act as frontline agents, QA analysts, and managers, continuously executing, monitoring, and improving every customer interaction. We're growing fast and looking for ambitious builders who want to tackle hard technical problems, move quickly, and have a real impact on one of the fastest-growing voice AI companies in the world. Let's build the future together. Recent recognition:
- No. 1 Best Places to Work in the Bay Area, San Francisco Business Times 2026
- Top 50 AI Apps, a16z (2025)
- #3 Fastest-Growing Software Company, G2 Best Software Awards 2026
- Best Agentic AI Software, G2 Best Software Awards 2026
- #4 Fastest-Growing Software Vendor, Brex Benchmark 2025
- Enterprise Tech 30 Class of 2026, Nasdaq & Wing VC
- Top-Ranked Startup, Lean AI Leaderboard
- Backed by Y Combinator
- Develop core features like prompt orchestration, dashboards, analytics, and telephony integrations.
- Build scalable full-stack systems, from polished UIs to robust APIs and DevOps workflows.
- Lead projects from architecture to production, owning coding, deployment, and iteration.
- Create intuitive interfaces and APIs, enabling customers to activate in hours.
- Support customer onboarding, debug issues, and turn feedback into product enhancements.
- Have 2+ years of full-stack experience with React, TypeScript, Node.js, or Python.
- Hold a degree in CS, CE, or equivalent practical experience.
- Take ownership like a founder, proactively solving problems across the stack.
- Thrive in fast-paced settings, quickly adapting to new tools and challenges.
- Communicate clearly, collaborating effectively in small, dynamic teams.
- Cash : 200k - 300k
- Equity : Offers Meaningful Equity
- Location : Redwood City, CA, US (100% Relocation Provided)
- US Visas : Retell AI is open to sponsoring work authorization for qualified candidates, including H1B/H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1 visas.
- 100% coverage for medical, dental, and vision insurance
- $70/day DoorDash credit for unlimited breakfast, lunch, dinner, and snacks
- $200/month wellness reimbursement (gym, fitness classes, etc.)
- $300/month commuter reimbursement (gas, Caltrain, etc.)
- $75/month phone bill reimbursement
- $50/month internet reimbursement
- Best Offer Upfront: Choose from three cash-equity balance options; no negotiation needed.
- Top 1% Talent: Above-market pay (top 5 percentile) to attract exceptional builders.
- High Ownership: Small teams, >$1M revenue/employee, and significant equity.
- Performance-Based: Offers tied to interview performance, not experience or past salaries.
- Intro Call (15-20min) : Connect with our Founding Recruiter to get a deeper look at the team and the work you'd be doing.
- Technical Interview (60 min) : Practical coding session focused on code fluency and system design (For frontend roles, we will focus on React-specific questions. For backend roles, we take a technology-agnostic approach.)
- Technical Interview (45 min) : A system design-focused interview assesses your knowledge of building product-ready systems.
- Onsite/Virtual Interviews (2-3 hrs) : Hosted in our office if located in the Bay Area or virtual, with three rounds:
- Practical Coding: Tackle real-world coding tasks with debugging.
- System Design: Architect a production-ready system.
- Existing codebase
Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer, Full Stack in San Francisco, CA vacancy
- ...companies and backed by the industry’s best investors, Gradient moves fast and builds full-stack systems that matter. The Opportunity Gradient is looking for a Founding Software Engineer to own how the robots move data from AI models to actuators. You will work close...FullstackSeniorFull time
$120k - $180k
...unique needs. As we continue to grow, Shakudo seeks a Senior Software Engineer with strong experience in Kubernetes and systems... ...Kubernetes, distributed computing, infrastructure as code ~ True full-stack experience including frontend is a strong plus ~ Bias...FullstackSeniorFull time- ...About Flow Flow Engineering is an AI-native requirements platform for modern engineering organizations, enabling hardware teams... ...speed and rigor. About the role Flow is seeking full stack senior software engineers to build AI-powered capabilities that help teams...FullstackSeniorFull timeFlexible hours
- ...the UI layer entirely, so the team can move faster across the full stack. You will build the visual systems that make agent workflows,... ...Bring The Toolkit ~5+ years of production front-end engineering experience, with a demonstrable track record of owning UI systems...FullstackSeniorFull timeWork experience placementShift work
$160k - $220k
...The next step is to speak to Jack . Job Title: Senior Software Engineer Salary: $160K - $220K + Equity Company Description... ...engineering organizations with a focus on reliability. ~ Full-stack proficiency in TypeScript, React, and Python, with a...FullstackSeniorFull time- ...begins, and it’s about to get a full-scale rebuild. We recently... ...-bound logic into modern, engineering-owned backend services. Integrating... ...products. If you’re a Senior engineer who thrives on modernizing... ...YOU'LL BRING Deep full stack engineering experience in...FullstackSeniorFull time
$192k - $240k
...Engineering at Brex Engineering at Brex is about building systems that scale with speed and intention. Our teams span Software, Data, Security, and IT, and operate with high autonomy and deep... ...designing, developing, and deploying full-stack applications. ~ Experience...FullstackSeniorFull timeWork at officeRemote workWork from home$190k - $230k
...SENIOR SOFTWARE ENGINEER - SAN FRANCISCO Job Title: Senior Software Engineer - AI & Real-Time Systems Location: San Francisco, CA (Onsite... ..., not just contribute to it. This is a hands-on, full-stack role. You'll architect real decisions, ship real features,...FullstackSenior$175k - $205k
...At 3Y Health, we are building AI-driven software to empower healthcare providers and solve... ...the Role We are seeking a Frontend Engineer to help us craft intuitive, high-performance... ...to life. Bonus points if you have light full-stack capabilities and can own backend tweaks...FullstackSeniorFull timeWork experience placementPrivate practice$150k - $237.5k
...the first time, all from batteries we already have. Senior Software Engineer, Energy Storage This position is on a team building the... ...on site controllers and in the cloud. Our scope spans the full stack: compute infrastructure, telemetry, asset modeling,...FullstackSeniorFull time$193.4k - $290k
...customers — from leadership to engineers — and work together to solve... .... Role Overview As a Software Engineer, Agents, you'll... ...hiring for this role across Mid, Senior, and Staff levels. ~ Proficiency... ..., either on the backend or full-stack. Compensation Range...FullstackSeniorFull time$110k - $324k
...beginning of our journey to becoming the next-gen entertainment powerhouse. \n What You'll Do: Leverage Our Cutting-Edge Tech Stack: Dive deep into Expo, React Native, NestJS, TS-Rest, Zod, NextJS, ShadCN, Tailwind, and Drizzle-ORM to craft seamless and robust frontend...FullstackSeniorFull timeWork at office- ...The role: We are seeking a Senior Engineer to join our new Member AI... ...operational excellence. Own the full lifecycle of your services,... ...~5+ years of professional software development experience, with... ...backend systems at scale.Technical Stack: Deep proficiency in Kotlin...FullstackSeniorFull time
$180k - $200k
...hiring entrepreneurial engineers who are interested in being... ...team releases new software every week, moves at a... ...projects to work on. As a Senior Software Engineer, you'... ...are comfortable taking full responsibility for... ...looking for strong full-stack web developers with 5+...FullstackSeniorFull timeRemote workFlexible hours- ...educational institutions. Work together with engineers, scientists, operators, and more from... ...scale. About the Role As Senior Software Engineer on the Allocation &... ..., you have the opportunity to own the full stack of impact—from the experiences our fellows...FullstackSeniorFull timeWork at officeImmediate startRemote workFlexible hours
$200k - $400k
...their AI agents. We transform complex engineering work into intuitive self-serve products... .... About the Role As a Senior Software Engineer on the Enterprise Product team... ...something like this ~4+ years building full-stack software products with strong product...FullstackSeniorFull timeWork at officeLocal area$175k - $215k
San FranciscoEngineering Team - Engineering /Full Time /HybridInkitt is building the Disney of the 21st Century, standing at the forefront of technology and entertainment. Leveraging AI and predictive algorithms, Inkitt discovers unknown stories and turns them into blockbuster...FullstackSeniorFull timeWork at office- ...Unlike wrapper companies or point solutions, we are building a full-stack AI platform from the ground up; one that is agentic,... ...others say is impossible. The Role We're looking for a Senior Software Engineer focused on AI systems to join our Engineering team. You'll...FullstackSeniorFull time
- ...About The Role: We're looking for an entrepreneurial Senior Software Engineer with interest in agentic AI and at least 5 years of general... ...: Software Engineering: At least 5 years of broad, full-stack or backend-focused experience Startup Culture: At least...FullstackSeniorFull timeTemporary workWork at officeFlexible hours
- ...the Role: AngelList is hiring a Senior Backend Engineer with a founder mindset for our Fund... ...complexities of creating a fund into software, at scale. Fund Formation is where... ...most likely: A senior back-end or full-stack engineer with 5+ years of experience...FullstackSeniorFull timeWork at officeRemote work
$160k - $260k
...in Business, and LinkedIn Top Startups. Your Role As a Software Engineer on the AI Foundations team, you will own the platform that... ...involving coding (e.g. physics or math) ~3+ years of backend or full-stack software engineering experience in a production environment....FullstackSeniorFull timeContract workImmediate startHome officeFlexible hours$150k - $250k
...You'll join Zip's Forward Deployed Software Engineering team as a software engineer on some of... ...you can read and write code across the stack: Python on the backend and React/TypeScript... ...Prior experience as a product engineer or full-stack engineer on a team that owned...FullstackSeniorFull timeHome officeFlexible hours$163k - $246.5k
...more at semgrep.dev. About the role As a Fullstack Engineer, you’ll work across the stack to design, build and maintain a fast and reliable user... ...physics and philosophy to formal methods research and full-fledged corporations. We’re new parents and new grads, dog...FullstackSeniorFull timeCurrently hiringLocal areaRemote workWeekend work3 days per week$170k - $200k
Instawork is seeking a Senior Software Engineer to drive product development for AI-powered solutions. You'll collaborate with cross-functional... ...+ years of experience in high-growth environments, strong full-stack capabilities, and a penchant for using AI tools to...FullstackSenior$200k - $320k
...0,000-$320,000 / yearSenior Software EngineerJob Number: 26-01214... ...move? We are looking for a Senior Software Engineer for our client in San Francisco... ...in the United States on a full-time basis without the need... ...issues across the technology stack.Optimize application performance...FullstackSeniorFull timeImmediate startVisa sponsorship$196k - $220k
...playing games. We're looking for a Senior Software Engineer to join the Growth team at Discord. Our... ...engaged members. You'll work across the stack to build the systems that acquire and activate... ...content at scale Work across the full stack — frontend (TypeScript, React)...FullstackSeniorFull time$200k - $280k
...Senior iOS Swift Software Engineer \ \ Compensation \ 200k to 280k USD No equity \\ \ Experience... ...years \\ \ Employment Type \ Full Time \\ \ Job Location \ San Francisco... ...to user experience \ Full stack engineering experience with ability to...FullstackSeniorFull timeWork at officeImmediate startWorldwideRelocationVisa sponsorship- Lead by example, driving engineering excellence across the team while actively mentoring and... ...stakeholders including Google's software supply chain integrity program and executive... ...enthusiastic to take on new problems across the full-stack as we continue to push technology...FullstackSenior
$196k - $220.5k
...Collaborating with the other engineers on your team to write, review,... ...raise the quality bar of the software we write. What you should have... ...a couple parts of our tech stack: Python, Typescript/React, Elixir... ...US base salary range for this full-time position is $196,000 to $...FullstackSeniorFull time$180k - $200k
...Senior Software Engineer We are looking for a Senior Software Engineer with 4+ years of experience to help build the foundation for the next era of enterprise AI. You are a hungry, autonomous full-stack developer who thrives on ambiguity and is obsessed with making...FullstackSeniorFull time
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Engineer, Full Stack. Be the first to apply!
Related searches
- software engineer internship San Francisco, CA
- software development engineer aws San Francisco, CA
- software developer internship no experience San Francisco, CA
- real time software engineer San Francisco, CA
- financial software developer San Francisco, CA
- part time software developer San Francisco, CA
- graduate software developer San Francisco, CA
- software engineer travel San Francisco, CA
- experienced software developer San Francisco, CA
- remote entry level software developer San Francisco, CA


