APIs Jobs

We’re looking for a Lead Engineer to help shape the future of HostGPO’s platform, data systems, and technical direction. This person will be a senior builder and technical leader who can architect and ship scalable systems, navigate messy real-world…

Trustle | Customer Success Engineer | Remote (US) | Full-time | Pre-Series A We enforce Zero Standing Privileges across cloud and SaaS — AWS, GCP, Azure, Snowflake, Okta, GitHub, and more. Access is requested just-in-time and disappears when the job…

TestGorilla is hiring a GTM Engineer to build and scale an AI-enabled GTM system across Sales, Marketing, and Customer Success. This role involves designing and implementing workflows, automations, and integrations to execute GTM strategy reliably a…

Polars is the company founded from the Polars OSS project. The company is building a distributed query engine and managed data platform that can run the full Polars API with different scaling strategies. The tech stack is primarily Rust and the plat…

Pinwheel is the Plaid for payroll — APIs and SDKs that give banks, fintechs, and lenders real-time, consumer-permissioned access to payroll data across 1,800 platforms covering 80% of US workers. Series B. Roles: Fullstack Engineer (backend-leaning)…

Perry Street Software publishes Jack'd and SCRUFF, two large LGBTQ+ dating apps on iOS and Android, and is hiring a Senior Ruby Developer. The role involves building the Ruby API that powers the company's mobile dating apps. The position is 40 hours…

Hiring early-career Full Stack Engineer to build and maintain Java (Spring Boot) microservices, work on distributed systems and APIs at scale, contribute to open-source repositories, and collaborate on system design and reliability improvements. Rol…

Estuary is a VC-backed, post–Series A startup powering right-time data replication and transform — from sub-second CDC replication to terabyte-scale OLAP data flows. They are open-source, developer-first, and focused on making data movement radicall…

Plaintext is hazmat. Come design the products that kill it. We are a developer security and API company on a mission to encrypt the web. We sit at the intersection of: Security - we've invested a tonne of time in cryptographic systems and provable s…

BackNine is a B2B2C insurtech platform that automates the insurance sales process. Thousands of companies—from brick-and-mortar agencies to publicly traded banks—use BackNine to quote, apply, and manage insurance online. We’re looking for an enginee…

Ping Data Intelligence (Miami, FL) is hiring a Senior Software Engineer to work onsite in Delhi, India. The role involves working alongside the data entry team to increase efficiency, streamline processes through ML and UI improvements, and triage a…

Ema is building the Universal AI Employee — AI that handles repetitive enterprise tasks so people can focus on creative, high-impact work. Founded by ex-Google and Coinbase execs. $75M raised from Accel, Section 32, Prosus, KPMG, and others. We're h…

Hike Medical | Boston or San Francisco (ONSITE) | Senior+ Software Engineer Hike Medical is reinventing musculoskeletal care, starting with feet. Our proprietary AI-vision platform turns a 30 second web-based (no sensors) foot scan into precision e…

Rootly is an AI-native incident management platform for on-call, incident response, and AI SRE tools used by engineering teams. Hiring across multiple senior and mid roles (engineering, SRE, platform, solutions, sales, customer success). Hybrid role…

Korva is building the AI-native operating system for health plan administration. Self-funded health plans cover 100M+ Americans, yet third-party administrators (TPAs) run them on manual processes and legacy software. We're rebuilding that back offic…

We’re hiring a Senior Full Stack Engineer at Intrinio. Intrinio powers fintech platforms, trading tools, and analytics applications with real-time and historical financial data. Our team standardizes complex market data into clean, developer-friendl…

Succeed is building a platform to help high-school students discover academic opportunities around the world — summer schools, competitions, research programmes, and university experiences. Goal: reach one million students. Hiring a lead engineer to…

Jurisphere is building an enterprise-grade Legal AI platform used by top law firms in India and the US. We are building product and systems infrastructure around legal workflows, document intelligence, review systems, and AI-powered execution. Engin…

Parabola is building an AI-powered workflow automation platform used by ops and finance teams at companies like Lyft, Flexport, and WHOOP. The role (Sales/Automation Engineer) works with customers throughout the sales cycle to define success criteri…

Hearo (Remote) — Founding Engineer — AI Product Intelligence Platform. Hearo is building an AI platform that turns public internet conversations (Reddit, app reviews, online communities) into structured product intelligence to help founders and prod…

We are building decentralized AI infrastructure: an inference platform for sovereign AI agents unifying orchestration, data, and compute. Small team, high ownership, real equity. Blockchain Engineer — Rust/Substrate L1 protocol development: custom p…

QuiverAI is building foundational AI models and tools for vector design and multimodal systems that generate editable SVGs and design assets from text, images, and sketches. Hiring across design, engineering, and research for roles based in San Fran…

Doconomy, a market leader in impact technology, dedicated to driving global climate action by equipping banks with innovative financial tools that educate and foster positive change. Our ecosystem of tools combines expertise in behavioral science to…

Redbook is the cloud-based software of reference for cattle feed yards, digitizing the $90B cattle industry. The product connects field operations and financials and is used by more than 100 customers. Hiring a Staff Software Engineer to integrate w…

Estuary is a post–Series A, VC-backed, open-source startup focused on real-time data replication and transform for large-scale OLAP data flows. Hiring senior and staff backend engineers to own core systems for real-time data pipelines, a backend eng…

Mobian is a brand safety, contextual intelligence, and measurement company hiring Senior / Staff Engineers (Remote, Global) across two tracks: Core Systems Engineers to design, scale, and harden production-grade APIs, data pipelines, ML deployments,…

Imagine having an entire software company working just for you – housing all your personal data, proactively working in the background doing chores, building apps, and organizing information to support your life. We're building a new category of per…

Kroo is building the knowledge platform for construction. They have a platform used by 30+ enterprise customers for data connectors, warehousing, and knowledge graphs tailored to construction industry systems (including on-premises systems and legac…

xAI's London team is hiring two onsite full-time roles. Backend Engineer: build and scale high-performance production systems powering grok.com and the xAI API; strong Rust (or C++) required; distributed systems experience a plus. Developer Experien…

Adobe is hiring an AI Agent Engineer. The team is building Adobe’s next‑gen, AI‑first marketing platform, looking for an engineer to design and ship production‑grade AI agents at enterprise scale. Responsibilities include building and orchestrating …

We are an AI platform for protein engineering (customers include Novo Nordisk, J&J, Grifols). We run our own wet lab in Amsterdam to generate training data for ML models and to build the automation playbook we share openly with the field. Hiring a s…

Multiple full-time roles (Support Engineer, Designer, Software Engineer) based in the SF Bay Area. Support Engineer: use Claude, Codex, or Shelley to search and augment the codebase with scoped API keys to improve customers' lives. Designer: use Cla…

Flux.ai builds a browser-based EDA with integrated AI hardware engineering tools and agentic capabilities. Hiring multiple senior engineering roles (Platform, Front End/Product, Software for agentic products, and DevOps) to develop and maintain user…