Design, build, and maintain backend APIs and services that power our AI workflow platform at scale.
Own complex projects end-to-end from architecture through production with full ownership and quick iteration.
Collaborate with a remote-first team to ship multiple times per day, using AI coding tools to accelerate development.
We're building an AI-native platform that helps marketing and creative teams at top e-commerce brands understand which ads are working and ship more winning creative across major ad platforms. We're a Series B remote-first team, currently under 100 headcount, growing 2.5x year over year, led by second-time founders.
Ship AI to production by building tool-using LLM agents for grant discovery and drafting, with robust evaluation and observability.
Build trustworthy backends with high-quality, tested code, data pipelines, and reliability practices like alerts and incident response.
Collaborate with Product, Design, and GTM to scope features, run experiments, and raise engineering standards through clear code and reviews.
Instrumentl is a profitable, hypergrowth, YC-backed SaaS platform building the operating system for grant-funded organizations. More than 5,500 nonprofits use Instrumentl to discover, track, and win grant funding, and the company has grown over 40% year over year.
Build and maintain backend services, APIs, webhooks, and integration services.
Design reliable data flows for assessment, feedback, learner activity, and reporting.
Work with PostgreSQL, BigQuery, and modern cloud application infrastructure.
The company is a global EdTech company building a suite of AI-enabled products for students, teachers, and education partners to support better learning outcomes at scale. The size and culture are not specified in the posting.
Design and build scalable backend systems for Midnite's internal back office platform.
Lead and mentor a small team of engineers while remaining hands-on in delivery.
Productionise and deploy AI-powered tools for engineering and business use cases.
Midnite is a next-generation sports betting and gaming platform built for a new wave of players. We are a high-performance team of over 400,000 players operating at pace, with high ownership and constant iteration.
Build backend services, APIs, and data layers powering product domains like outreach automation, payments, reporting, and analytics.
Own data modeling, ETL, and vendor SDK integrations while contributing to React frontend and internal tooling.
Partner with Product throughout the development lifecycle, author technical specs, and contribute to CI/CD and development infrastructure.
Pearly is a B2B SaaS and payments company serving over 2,500 dental offices. They are scaling rapidly with a hyper-modern stack and a focus on shipping impactful capabilities.
Be part of a team replacing a decades-old legacy system with a modern web ecosystem using Agentic AI tools like Claude Code and Codex.
Develop and own domain services in TypeScript and Node.js, including case lifecycle state machines and pricing engines.
Deliver complete vertical slices of business capability across the full stack, from React UI to AWS CDK infrastructure-as-code.
Redhorse Corporation is a solution-driven company delivering data insights and technology solutions to customers with missions critical to U.S. national interests. We are a team of thoughtful, skilled professionals who thrive as trusted partners building technology-agnostic solutions.
Design, build, and ship customer-facing product features end-to-end.
Own architecture across backend systems, APIs, databases, and cloud infrastructure.
Develop AI-powered workflows leveraging modern LLM technologies.
This seed-stage healthcare technology startup is building AI-powered infrastructure to modernize care coordination and benefit administration for vulnerable populations. The founding team is creating a culture centered around ownership, collaboration, and craftsmanship.
Design, build, and operate backend services powering the platform for carriers and shippers in the U.S. vehicle transportation industry.
Own multiple backend services end-to-end, including architecture, REST APIs, databases, and asynchronous systems.
Mentor junior and mid-level engineers on architecture, patterns, and production readiness.
Super Dispatch is a next-generation platform redefining efficiency in the auto transport industry, offering tools like Carrier TMS, Shipper TMS, SuperPay, and Super Loadboard. It is a 100% distributed team with a remote-first culture, empowering carriers, shippers, and brokers to achieve operational excellence.
Design and build the backend services that power Operator, a system that helps engineering teams search company knowledge and surface design decisions.
Develop scalable retrieval pipelines, integrate structured and unstructured engineering data, and improve search quality and knowledge retrieval performance.
Collaborate with AI, Product, Design, and Engineering teams to deliver customer-facing capabilities and mentor teammates through code reviews and technical leadership.
CoLab is an AI platform that helps mechanical engineering teams bring life-changing products to market faster by driving stronger engineering decisions. It is a rapidly scaling company recognized on Deloitte's Fast 50 and Fast 500, and named a Canadian company to watch by The Globe and Mail and Financial Post.
Build and maintain API integrations with OEMs and energy partners, ensuring reliability and performance.
Improve the connectivity platform by reducing incidents and enhancing observability.
Develop automations and internal tools to streamline integration monitoring and testing.
Enode provides the infrastructure layer that connects and orchestrates energy devices for energy companies. We are a mission-driven startup backed by Y Combinator, Lowercarbon Capital, and Creandum, with a collaborative and supportive culture.
Build and maintain API integrations with OEMs and energy partners, ensuring they are reliable, performant, and well tested.
Strengthen the connectivity platform by reducing incidents and improving observability, monitoring, and alerting.
Take on complex projects and drive them through to release, breaking them into actionable work and delivering with limited hand-holding.
Enode provides software infrastructure to connect and orchestrate energy devices like EVs, heat pumps, and solar inverters at scale. We are a mission-driven startup backed by Y Combinator, Lowercarbon Capital, and Creandum, with a fun and caring culture.
Build and operate backend systems that serve AI-powered insurance workflows in production.
Design and implement AI orchestration layers connecting models, APIs, workflows, and business logic.
Optimize latency, throughput, and cost across AI services through caching, batching, streaming, and routing.
BJAK is Southeast Asia's largest digital insurance platform, building AI-powered products that simplify insurance and financial services for millions of users. It operates with a global engineering team that values high ownership, technical excellence, and modern practices.
Design, build, and operate reliable, scalable backend services and data pipelines.
Work across our cloud infrastructure (AWS) to ship and run production systems.
Improve the performance, reliability, and observability of the systems you own.
Allocate is transforming private market investing by enabling RIAs and family offices to seamlessly discover, model, and manage their private market exposure. They are a company that values world-class client experience, challenges convention, and embraces continuous improvement and meritocracy.
Build and maintain agentic systems collecting and processing signals from social platforms, on-chain data, and ads ecosystems.
Design pipelines to ingest from external APIs, enrich data, and build semantic layers for both humans and AI agents.
Build full-stack applications and dashboards making intelligence accessible across client accounts.
Serotonin is a go-to-market firm for transformative technologies, specializing in marketing, strategy, recruiting, and legal services. With a global team of 90 across 15 countries, they have supported over 300 clients since 2020, offering end-to-end solutions across all major marketing channels.
Build backend services for AI-driven insurance operations and workflow automation.
Design scalable APIs, data models, and backend architectures for complex workflows.
Ensure correctness, reliability, and consistency of operational and transactional data across systems.
BJAK builds AI-driven automation systems for insurance, handling customer journeys from quotes to claims. They are a global team working remotely, with a culture focused on reliability, scalability, and engineering excellence.
Build and ship end-to-end features, from RESTful APIs to responsive frontend components, using Python/Django and TypeScript/React.
Develop scalable backend services and create high-quality frontend experiences with reusable, performant UI components.
Champion code quality through clean, testable code and actively participate in code reviews to elevate the team.
Procurify is the AI-enhanced procurement and AP automation platform for mid-market organizations. We are a remote-first company with a big heart and a strong ambition to modernize business spend management.
Design and build a next-generation reliability platform for Affirm's production systems, blending distributed systems engineering with AI-assisted development.
Create AI agents and a centralized command center to assist with incident triage, root-cause analysis, and unified system health visualization.
Own projects end-to-end, from requirements to rollout, collaborating with partner teams to build powerful, simple solutions for developers.
Affirm is reinventing credit to make it more honest and friendly, offering consumers the flexibility to buy now and pay later without hidden fees. The company is a remote-first organization with a strong focus on people-first values and inclusive benefits.
Build and operate backend systems serving AI-powered insurance workflows in production.
Design and implement AI orchestration layers connecting models, APIs, workflows, and business logic.
Optimize latency, throughput, and cost across AI services using caching, batching, streaming, and routing.
Next Step Systems is an IT recruiting and staffing company that helps businesses hire technology professionals. They operate globally, connecting talent with opportunities in various tech roles.
Develop and maintain core systems supporting user accounts, payments, and APIs.
Integrate third-party services such as KYC/AML, foreign exchange, and banking aggregators.
Work closely with sales and engineering teams to design and implement solutions for customer needs.
Sphere Pay is a payment platform that provides APIs for managing user accounts and transactions. The company fosters an inclusive and diverse work environment with a focus on engineering excellence.
Own and drive the quality, reliability, and evolution of AI systems in production across multiple products.
Design and orchestrate agentic AI workflows, tool-based systems, and multi-step LLM chains with clean tool contracts.
Manage production prompt systems, run A/B experiments, and monitor AI system metrics using Langfuse and other observability tools.
Ruby Labs is a leading tech company that creates and operates innovative consumer products across health, education, and entertainment. The company has a fast-growing, ambitious team with a high-performance culture.