Backend Engineer

Design and implement scalable, resilient backend systems and integrate Applied AI features into client products. Collaborate directly with founders and CTOs to shape technical architecture and take full ownership of solutions.

Lead Backend Engineer (Go)

Senior Backend Engineer (Go)

AI / Backend Engineer

You will develop and scale backend services and AI systems, including RAG pipelines and LLM orchestration for a B2B platform. Additionally, you will manage cloud infrastructure, perform code reviews, and ensure system security.

Senior Backend Engineer

You will design and implement complex backend features while influencing the technical direction and architecture of a global platform. Additionally, you will mentor team members, ensure operational excellence, and integrate agentic AI into production engineering workflows.

Senior Backend Engineer (Ruby), Plan: Spec-Driven Development

You will lead backend feature development from technical design through implementation and rollout, focusing on agentic workflows and AI-driven code generation. You will also build evaluation systems to measure workflow quality and collaborate with cross-functional teams to shape product scope.

Senior Backend Engineer (Go), Tenant Scale: Gitaly

You will lead technical initiatives for GitLab's Git data storage tier, focusing on distributed storage, performance, and scalability. You will also take operational ownership of systems, including incident response, mentoring team members, and collaborating across cross-functional teams.

Staff Backend Engineer

You will shape technical direction across teams by solving high-consequence backend problems and establishing architectural standards. You will also mentor senior engineers and partner with leadership to drive long-term technical investments.

Senior Backend Engineer

You will own backend solutions end-to-end, from problem definition and design to testing, deployment, and production maintenance. You will also evolve services for performance and scalability while collaborating with cross-functional teams to deliver durable solutions.

Senior Backend Engineer (Java)

Architect and build scalable, high-performance backend services using Java and Spring Boot while collaborating with cross-functional teams to deliver high-impact features. You will also diagnose complex issues across the stack and maintain clear documentation to support long-term system scalability.

Mid+ AI / Backend Engineer

You will develop and scale backend services and AI systems, including RAG pipelines and LLM orchestration for a B2B platform. Additionally, you will manage cloud infrastructure, perform code reviews, and ensure system security through robust authentication and authorization practices.

Senior Backend Engineer (Go), Tenant Scale: Gitaly

You will lead technical initiatives for GitLab's Git data storage tier, focusing on performance, scalability, and reliability. You will also take operational ownership of systems, including incident response and cross-functional collaboration with infrastructure and engineering teams.

Senior Back-end Engineer ( Accessibility Product House)

Design and implement scalable, distributed back-end solutions for a SaaS platform focused on accessibility compliance. Collaborate with cross-functional teams to evolve architecture, optimize system performance, and maintain high-scale cloud infrastructure.

Senior Backend Engineer

You will design, build, and maintain scalable backend services while owning key parts of the architecture for a high-load global platform. You will also collaborate with product managers and frontend engineers to develop new features and mentor team members to foster engineering excellence.

Senior Backend Engineer (PHP/Python)

You will develop and maintain business-critical backend platforms using PHP and Python while building REST APIs and data processing pipelines. Additionally, you will collaborate with cross-functional teams to translate business needs into effective technical solutions within an Agile environment.

Senior Backend Engineer

You will lead the development of financial services products like transfers, cards, and lending from the ground up. You will also collaborate with cross-functional teams to integrate third-party APIs and ensure systems are production-ready.

Senior Backend Engineer

You will design and implement complex backend features while influencing the technical direction and architecture of the platform. Additionally, you will mentor team members, ensure operational excellence, and integrate AI into production engineering workflows.

Senior Backend Engineer (Golang)

You will architect and evolve backend systems in Golang to support millions of users while maintaining existing Node.js services. You will collaborate with product and data teams to build scalable APIs and optimize performance bottlenecks.

Backend Engineer | Mid - Senior | UCP team

Build and maintain a sophisticated User Control Panel to ensure user trust and recurring growth. Mentor colleagues on web development best practices and contribute to the long-range technical vision of the team.

Senior Backend Engineer (Node.js)

You will architect and evolve backend systems to support millions of active users while building clean, reliable APIs. You will also collaborate with product and data teams to optimize performance and scale infrastructure.

Senior Backend Engineer (Node.js & Go)

You will architect and evolve backend systems to support millions of active users while building clean, reliable APIs for the frontend team. You will also work with complex data flows and caching to ensure performance and scalability.

Staff Software Engineer, Backend (Card)

You will serve as the lead software engineer for EU card operations, setting technical strategy and overseeing architecture for transaction processing and ledgering systems. You will also act as a force-multiplier for your team by defining technical standards, mentoring engineers, and ensuring operational excellence.

Senior Software Engineer, Backend (Card)

You will be responsible for owning and delivering quarterly goals while leading engineers through ambiguity to solve complex technical problems. Additionally, you will collaborate with product management, design, and analytics teams to define technical plans and ensure the availability of team artifacts.

Backend Engineer — FastAPI, Neo4j and Databricks (Remote)

Design, build, and operate production-grade APIs, microservices, and data pipelines for maritime geospatial analytics. Lead features end-to-end from technical discovery and design through implementation, deployment, and runtime monitoring.

Senior Software Engineer, Backend (Card Acquisition)

You will lead the technical strategy and delivery for the Card Acquisition team while mentoring senior engineers to solve complex, open-ended problems. Additionally, you will own the team's operational health, including monitoring, on-call rotations, and establishing high standards for code quality and design.

Senior Backend Engineer

Backend Engineer - Remote Central & Eastern Europe

Design and build core backend services in Go to evaluate cloud infrastructure compliance in real time. Own the end-to-end development of simulation and enforcement paths to block or remediate non-compliant changes.

Senior Software Engineer, Backend

Design and implement high-performance Elixir/Phoenix-based systems and manage the declarative infrastructure using Kubernetes and Terraform. You will operate the managed cloud platform, focusing on cluster lifecycles, GitOps workflows, and system reliability.

Senior Software Engineer, Back-end (Fraud)

Design and implement real-time fraud decisioning services and APIs to extend Affirm's fraud protection to international markets. Lead the delivery of quarterly goals and collaborate with cross-functional teams to build scalable, repeatable paths for new country launches.

Backend Engineer, AI (Agent Systems)

Design and operate the inference and orchestration layer that powers AI interactions, focusing on latency, reliability, and cost. Build production systems to turn model capabilities into stable APIs for mobile and desktop clients.