Backend Engineer, API
$140k - $220kPylon
The Team We're looking for Back End Engineers to join our API team. We treat our GraphQL API as a product — because it is one. Multiple customers build directly on top of it, and the quality of their experience is determined by how well we design, document, and maintain it. Mortgage is a surprisingly rich domain to model. It’s path‑dependent: the choices you make early in a loan constrain what's possible later. It’s nonlinear: different borrower situations branch into wildly different flows. Most APIs in this space paper over that complexity. We're building one that embraces it — encoding the real shape of mortgage into a surface that's impossible to misuse and delightful to build against. Here Is What You'll Do Define what a mortgage is in code. Seriously. You'll work on semantic models that don't just represent mortgages as they exist today — they expand what a mortgage can be. This is product design at the API layer. Build toward an event‑driven API. We're moving to a world where our API doesn't just respond to requests — it tells you what happened, why, and what you can do next. You'll help design and ship that future. Make the complex feel simple. Our API should make the mortgage process impossible to get wrong. That means thoughtful abstractions, clear documentation, and an obsessive focus on developer experience. Design for nonlinearity. Mortgage flows aren't linear wizards. Our future API encodes choice, branching, and path‑dependence natively. You'll work on guided experiences that model real‑world complexity without exposing it as chaos. Treat this as a product surface. You'll think about breaking changes, versioning, onboarding, and the full lifecycle of an API that real companies depend on. Tech Stack TypeScript GraphQL (this is the product) NestJS SQL (PostgreSQL) Temporal.io (workflow orchestration) Event‑driven architecture AI‑driven development tooling and agentic infrastructure Who Will Succeed Here Someone who: Is deeply curious Wants to own features from design to development to deployment to maintenance Is willing to put the work in to solve the hardest of problems Location: Palo Alto, CA. Base Salary Range: $140,000/yr to $220,000/yr + Equity + Benefits. #J-18808-Ljbffr Pylon
$140k - $220k
A leading tech company in Palo Alto is seeking a Back End Engineer to join their API team. The role focuses on defining and building an innovative API for mortgage processing, ensuring a delightful developer experience. Candidates should be deeply curious and eager to...Suggested- A technology company focused on AI and simulation is seeking a Backend Engineer to build and maintain data systems and APIs. The ideal candidate will have experience in backend engineering, API design, and cloud environments. Responsibilities include generating and processing...Suggested
$180k
...small, highly motivated, and focused on engineering excellence. This organization is for individuals... ...infrastructure is built. Most of our backend infrastructure is written in Rust. So... ...beneficial. RESPONSIBILITIES: Build the xAI API that serves our models to developers...SuggestedTemporary workWorldwide- Member of Technical Staff - Backend Engineer - Data Systems and APIs About Vinci We’re building a copilot for hardware. Software engineers have powerful AI tools. Hardware engineers still rely on workflows that take hours or days to simulate and iterate. Vinci is changing...Suggested
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...Limited is hiring for a position in Sunnyvale, CA to design and develop scalable backend services. The role involves building secure RESTful APIs and collaborating with product managers and engineers to deliver high-quality solutions. The ideal candidate will follow industry...Suggested- ...Inc. in Cupertino, California, seeks a skilled software engineer to design and optimize backend systems powering services like the App Store and Apple Music... ...languages such as Clojure, designing scalable APIs, and ensuring software quality. The ideal candidate will...Worldwide
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$140k - $185k
...based hybrid in-office. About Wealthfront Engineering Wealthfront’s culture centers around... ...you! About the Role We are looking for backend engineers to join our core product development... ...backend components, services or APIs in Java or a similar language. You demonstrate...Work at officeRemote work- A tech company in Palo Alto is actively seeking a Backend Engineer to develop systems that manage GPU clusters for AI workloads. The role demands... ..., with strong skills in Go or Python. You will design APIs for GPU orchestration and manage resources efficiently. This hybrid...
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ID.me is seeking a Software Engineer III to join the Trust Service team in Mountain View, California... ...building and operating the Trust Service backend, focusing on identity verification... ...SQL. Responsibilities include designing API contracts, ensuring reliability, and...- TwinThread is seeking an experienced engineer to design and build Java/Kotlin microservices for a modern SaaS platform in Santa Clara, California. This high-impact role involves working across the backend and collaborating with cross-functional teams to deliver robust cloud...
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P2P is seeking a talented Senior Software Engineer to build infrastructure for the Aptos blockchain ecosystem. This position involves designing and optimizing backend services, developing scalable APIs, and ensuring robust infrastructure that impacts thousands of developers...$160k - $240k
...future of healthcare. Job Summary We're looking for a skilled Backend Engineer to contribute to the development of our Gen AI for Healthcare... ...Solid understanding of microservices architecture and RESTful APIs Experience with one of the major cloud platforms (AWS, GCP, or...Live inFlexible hours3 days per week$135k - $200k
...command centers and battlefronts of militaries across the world. Backend Software Engineers at Palantir build software at scale to transform how... ...develop reliable, performant, scalable systems and design robust APIs and primitives, please join us. Some examples of product...Work experience placementRelocation package- Walmart Inc. is seeking a Senior Backend Engineer for its Health & Wellness Digital team. This role involves providing technical leadership, working closely with various stakeholders, and making hands-on engineering contributions. Candidates should have at least 7 years...
- Tensec is seeking a Developer Platform Engineer to spearhead the development of its developer... ...maintain SDKs for real-time Speech AI APIs, work on API contracts and documentation,... ...should be comfortable with both frontend and backend development and have a proven track...
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- CloudAct Inc. is looking for a backend engineer to enhance the FastAPI proxy. You will handle streaming, retries, and ensure the system operates... ...concurrency environments. Additional advantages include exposure to LLM APIs or streaming proxies. #J-18808-Ljbffr CloudAct Inc.
- A tech company focused on distributed computing is seeking engineers to enhance the Ray backend. This role involves developing open-source software for distributed programming, identifying architectural improvements, and improving testing processes. Candidates should have...
$190k - $300k
...turn, builds trust with their user base. AI Engineers, Data Science, and business teams use... ...scalable data infrastructure, services and APIs to support enterprise scale workloads and... ...Python and a strong command of essential backend technologies like Postgres, Redis, Kafka,...Work at office3 days per week- A leading technology firm in Palo Alto is seeking a Cloud Engineer to develop cloud-based third-party integrations for automotive solutions... ...candidate should possess strong experience with RESTful APIs, backend development, and familiarity with cloud platforms like AWS or...
- Backend Engineer Responsibilities: Design and develop multi-layered permission role integrations with consensus and policies. Create automated remediation and exception management solutions to support fund transfers. Develop highly efficient search systems with sub-...
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- ...designing the infrastructure for the AI-first world. Why this role exists We need a Backend Engineer to build the systems that orchestrate GPU clusters for AI workloads. You'll create APIs that handle GPU allocation, memory management, compute scheduling, and multi-...Hourly payFull timeWork at officeWork from homeVisa sponsorship
$140k - $220k
The Team We’re looking for Back End Engineers to join our Underwriting team. This is the team that takes human judgment out of mortgage origination — and replaces it with systems that are faster, more consistent, and more accurate than any human process could be. Mortgage...- Overview Senior Backend Software Engineers are responsible for the data-intensive applications and services we develop for reimagining the way doctors... ...care with the use of technology. Responsibilities Create API solutions for internal and external web services for...
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