Backend Engineer, APIs
Own backend systems powering Mercury's financial platform — data models, throughput, failure handling and migrations.
1638 roles across 160 companies — filter by region or category.
Showing 50 of 294 matching positions (151–200)
Clear filtersOwn backend systems powering Mercury's financial platform — data models, throughput, failure handling and migrations.
Run a product engineering team on Mozilla's open-source projects and keep it shipping without burning out.
Build the interfaces people use every day across Mozilla's open-source projects, in TypeScript and React.
Work across the stack on Okta's security platform in a small team where engineers make product calls.
Ship user-facing features across Oyster's employment platform and stay with them through rollout and iteration.
Design and build the services and APIs behind Oyster's employment platform, with a strong bias toward correctness and observability.
Own mobile architecture and platform integrations for Palo Alto Networks's security platform across releases.
Lead a team building Perplexity's AI products — hiring, growth, delivery and the technical direction that supports them.
Work on the foundations of Pinecone's developer platform, where reliability and clear interfaces matter more than novelty.
Build the interfaces people use every day across Plaid's financial platform, in TypeScript and React.
Own mobile architecture and platform integrations for Plaid's financial platform across releases.
Work on the foundations of PostHog's analytics platform, where reliability and clear interfaces matter more than novelty.
Own backend systems powering Retool's developer platform — data models, throughput, failure handling and migrations.
Own backend systems powering Rippling's employment platform — data models, throughput, failure handling and migrations.
Work across the stack on Robinhood's financial platform in a small team where engineers make product calls.
Work across the stack on Sentry's developer platform in a small team where engineers make product calls.
Build and maintain the core systems behind Sentry's developer platform alongside a distributed engineering team.
Ship user-facing features across Spade's financial platform and stay with them through rollout and iteration.
Scale the core services behind Temporal's developer platform as traffic and data volume keep growing.
Build the interfaces people use every day across Temporal's developer platform, in TypeScript and React.
Own front-end architecture, accessibility and performance for Together AI's AI products.
Take significant projects across Together AI's AI products from design document through launch and operations.
Run a product engineering team on Toptal's marketplace and keep it shipping without burning out.
Design and build the services and APIs behind Twilio's product suite, with a strong bias toward correctness and observability.
Lead a team building Vanta's security platform — hiring, growth, delivery and the technical direction that supports them.
Lead a team building Vercel's developer platform — hiring, growth, delivery and the technical direction that supports them.
Work on the foundations of Weights & Biases's developer platform, where reliability and clear interfaces matter more than novelty.
Own mobile architecture and platform integrations for Weights & Biases's developer platform across releases.
Own features end to end across Wikimedia Foundation's programmes and platforms — schema, API, interface and the metrics that follow.
Take significant projects across Wikimedia Foundation's programmes and platforms from design document through launch and operations.
Design and build the services and APIs behind Zoom's product suite, with a strong bias toward correctness and observability.
Build and maintain the core systems behind Zoom's product suite alongside a distributed engineering team.
Build and scale the Rails and Go services behind source control, CI/CD and security scanning, collaborating asynchronously across time zones.
Work on WordPress core, WooCommerce or Jetpack in PHP and JavaScript, contributing back to open source as part of the job.
Work alongside customers to design search, observability and security deployments on the Elastic Stack.
Get matched with client projects and work flexible hours remotely as part of a global freelance engineering network.
Build the APIs and systems that move money for millions of businesses, with a strong emphasis on correctness and reliability.
Build the integrations and data pipelines connecting thousands of financial institutions to fintech applications.
Build learning tools used by millions of students and teachers, working in a mission-driven non-profit engineering team.
Build booking and hosting experiences in React across web and mobile web at large scale.
Work on the PHP and JavaScript platform behind Wikipedia, in the open and alongside volunteer developers.
Design and implement high-performance network services in Rust and C that handle millions of requests per second at the edge.
Build the distributed systems that ingest and query trillions of metrics data points in real time.
Develop features for the infrastructure-as-code tool used by millions of engineers to provision cloud resources.
Build communication APIs and SDKs that developers use to embed voice, video and messaging into their applications.
Build interactive CRM and marketing automation interfaces in React used by hundreds of thousands of businesses.
Build the real-time syncing and database engine that powers millions of collaborative workspaces.
Build the fast, keyboard-driven issue tracker in TypeScript and React that engineering teams prefer for speed.
Craft pixel-perfect, high-performance UI components for a tool where interface speed is a core product value.
Contribute to the open-source Next.js framework used by millions of developers for production web applications.
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