Staff Backend Engineer
VapiSan Francisco, CA, United States30+ days ago
Job type
- Full-time
Job descriptionShip a pre-scoped optimization or refactor within the first 14 days Ex. improve the latency of a component of the speech-to-speech pipeline Ship an optimization independently within the first 30 days Ex. refactor a tool-calling mechanism to make it more deterministic Receive a request from Support team and ship the fix within the first 14 days Pick up customer threads unprompted, investigate and solve within the first 14 days Delight a customer within the first 30 days (e.g., call analytics endpoint) Experience with TypeScript + Node or similar backend framework Communication : You can clearly articulate what you’re thinking and feeling Cracked-ness : You’re more cracked than the most cracked person on the team Startup Ready : You have a reason to be here and can make sacrifices for something uncertain Founder Juice : New ideas come from you, you build it yourself or annoy everyone until it’s done ;) Previous Founding / Senior / Staff / Principal Engineer 1+ years of experience at a company 5+ years experience in Full-Stack / Backend Software Engineering Define the future of human–AI interaction : help pioneer a new era of voice-based AI products that are transforming how people and businesses communicate Own meaningful work at a breakout startup : join early, take real ownership, and have a direct hand in building a category-defining company from the ground up Surround yourself with exceptional people : work alongside a world-class team of engineers, operators, and builders backed by top-tier investors who believe in our mission Accelerate your career in a high-growth environment : grow fast, take on big challenges, and unlock opportunities as we scale one of the most exciting platforms in AI Competitive compensation : includes a strong base salary and meaningful equity ownership Comprehensive health coverage : medical, dental, and vision plans Flexible time off : take-what-you-need vacation policy with an emphasis on rest and balance Daily meals : catered lunches and dinners provided for in-office days Lifestyle & wellness stipends : monthly allowances to support rent, transportation, food, fitness, and mental well-being Professional development : annual learning stipends for courses, conferences, and upskilling Team connection : regular offsites, team events, and opportunities to build in-person relationships Mid-Senior level Full-time Engineering and Information Technology Software Development
Join to apply for the Staff Backend Engineer role at Vapi .
About Vapi
Vapi is building the future of voice-native applications. Our platform equips companies with everything they need—telephony, real‑time streaming, deterministic fallbacks, HIPAA / SOC2 compliance, and an AI testing suite—to launch production‑grade voice agents fast. In just 18 months, more than 150,000 developers have signed up, with over 1,000 new developers joining every day. Our mission is to make voice humanity’s default interface again by capturing nuance, emotion, and context that text alone misses. Try it now!
The Role
The Senior Backend Engineer will own features end-to-end from customer requests to their deployment, building on a modular API-first architecture, working within real-time low-latency constraints. You’ll also be a foundational part of how we build the culture at Vapi.
What You'll Do
Own and deliver entire features and projects
- Ship a pre-scoped feature within the first 7 days
- Ship a feature independently within the first 30 days
Ship optimizations and refactors
Talk to customers
Build things that delight customers
Who You Are
Why Vapi
What We Offer
Seniority level
Employment type
Job function
Industries
#J-18808-Ljbffr
Create a job alert for this search
Staff Backend Engineer • San Francisco, CA, United States
Related jobs
We’re building the “Terraform for operators” — an AI‑generated schema layer driving a white‑labeled data warehouse that lets physical‑goods companies evolve their systems of record as fast as their...Show moreLast updated: 30+ days ago
Harvey is a secure AI platform for legal and professional services that augments productivity and automates complex workflows.
Harvey uses algorithms with reasoning-adept LLMs that have been customi...Show moreLast updated: 30+ days ago
World is a network of real humans, built on privacy-preserving proof-of-human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all....Show moreLast updated: 1 day ago
World is a network of real humans, built on privacy-preserving proof-of-human technology, and powered by a globally inclusive financial network that enables the free flow of digital assets for all....Show moreLast updated: 30+ days ago
At Inworld, we believe the processes of building, scaling, and evolving applications are monsters that consume value before it can reach users.
Our mission is to solve evolution and transform static...Show moreLast updated: 30+ days ago
Twenty is a boutique marketing recruitment agency that connects high-growth companies with exceptional candidates.Want to build technology that truly moves the needle in healthcare? Join a fast-sca...Show moreLast updated: 29 days ago
Hedra is a pioneering generative media company backed by top investors at Index, A16Z, and Abstract Ventures.We're building Hedra Studio, a multimodal creation platform capable of control, emotion,...Show moreLast updated: 30+ days ago
Perplexity is redefining how people search, reason, and interact with information.Our API team sits at the core of this vision, designing and operating the high-performance interfaces that expose P...Show moreLast updated: 1 day ago
At City Storage Systems, we're building Infrastructure for Better Food.We help restaurateurs around the world succeed in online food delivery.
Our goal is to make food more affordable, higher qualit...Show moreLast updated: 30+ days ago
We’re building the “Terraform for operators” — an AI‑generated schema layer driving a white‑labeled data warehouse that lets physical‑goods companies evolve their systems of record as fast as their...Show moreLast updated: 25 days ago
Designed with simplicity in mind, Verkada's six product lines — video security cameras, access control, environmental sensors, alarms, workplace, and intercoms — provide unparalleled building secur...Show moreLast updated: 30+ days ago At City Storage Systems, we're building Infrastructure for Better Food.We help restaurateurs around the world succeed in online food delivery.
Our goal is to make food more affordable, higher qualit...Show moreLast updated: 30+ days ago 
Quantum computing holds the promise of humanity's mastery over the natural world, but only if we can build a.PsiQuantum is on a mission to build the first real, useful quantum computers, capable of...Show moreLast updated: 30+ days ago
Fortinet is looking for a Staff Software Engineer on the FortiCNAPP Team! Be a valuable member of the team that owns and operates high-availability, cross-cloud, large-volume, data processing syste...Show moreLast updated: 30+ days ago
At Sift, we’re redefining how modern machines are built, tested, and operated.Our platform gives engineers real-time observability over high-frequency telemetry—eliminating bottlenecks and enabling...Show moreLast updated: 30+ days ago
Exciting opportunity with one of the leading climate tech companies in the Bay Area.Aclima is pioneering an entirely new way to monitor and respond to air pollution in communities, and track the ef...Show moreLast updated: 30+ days ago
Are you ready to build America's energy future? Form Energy is an American manufacturing and energy technology company.We're revolutionizing energy storage with cost-effective, multi-day technology...Show moreLast updated: 28 days ago
Opaque is the confidential AI platform unlocking sensitive data to securely accelerate AI into production.Created by world-renowned researchers at the Berkeley RISELab, Opaque’s user-friendly platf...Show moreLast updated: 30+ days ago
- Promoted
Staff Backend Engineer
DossSan Francisco, California, United StatesFull-time
- Promoted
Staff Software Engineer, Backend
HarveySan Francisco, California, United StatesFull-time
- Promoted
Staff Backend Engineer, Product
Tools For Humanity CorporationSan Francisco, CA, United StatesFull-time
- Promoted
Staff Backend Engineer
Protocol Labs, Inc.San Francisco, CA, United StatesFull-time
- Promoted
Staff Backend Engineer
Inworld AiMountain View, California, United StatesFull-time
- Promoted
Staff Backend Engineer
80TwentySan Francisco, CA, United StatesFull-time
- Promoted
Senior / Staff Backend Engineer
HedraSan Francisco, CA, United StatesFull-time
- Promoted
Staff Backend Engineer - API Platform
PerplexitySan Francisco, CA, United StatesFull-time
- Promoted
Senior / Staff Backend Engineer - Mountain View, CA
City Storage SystemsMountain View, California, United StatesFull-time
- Promoted
Staff Backend Engineer
Theory VenturesSan Francisco, CA, United StatesFull-time
- Promoted
Staff Backend Engineer - Device Platform
VerkadaSan Mateo, California, United StatesFull-time
- Promoted
Staff Backend Engineer, City Storage Systems - Mountain View
City Storage SystemsMountain View, California, United StatesFull-time
- Promoted
Staff Software Engineer
PsiQuantumPalo Alto, CA, United StatesFull-time
- Promoted
Staff Software Engineer
FortinetSunnyvale, CA, United StatesFull-time
- Promoted
Staff Backend Engineer
Sift Stack, Inc.San Francisco, CA, United StatesFull-time
- Promoted
Staff Backend Engineer
Aclima, Inc.San Francisco, California, United StatesFull-time
- Promoted
Staff Software Platform EngineerSoftware Engineering • Berkeley, CA; Somerville, MA; Weirton, WV • Full time • On-site
Form EnergyBerkeley, CA, United StatesFull-time
- Promoted
Staff Backend Engineer
OPAQUE SystemsSan Francisco, CA, United StatesFull-time