Top Backend Jobs in Bristol

As a Backend Engineer, you'll improve Git and Gitaly by contributing features, bug fixes, and performance improvements, collaborating with the open source community, and participating in architectural discussions.

Lead SDLC, DevOps and full‑stack capability for client engagements: design and implement CI/CD, IaC and cloud practices (AWS/Azure), deliver technical consulting, build reusable assets and mentor future engineers while supporting business development and capability growth.

Build and maintain backend AI capabilities for GitLab Duo Chat: design flow components and agentic flows in Python/LangGraph, integrate LLMs and multi-agent orchestration, implement and maintain APIs in the Rails monolith, improve observability and reliability, and participate in on-call rotations and cross-functional collaboration to deliver safe, scalable AI chat features.

Build tooling, workflows, and guidance to make GitLab easier to deploy, validate, and operate across cloud-native and self-managed environments. Evolve deployment guidance, improve production-like ephemeral environments, and maintain consistent deployment artifacts and environment contracts across development through production.

Senior PHP backend engineer to develop and maintain the Xodo Sign eSign platform. Work in a Scrum team across requirements, design, implementation, testing, and maintenance; build and scale REST APIs; optimize performance and security; perform code reviews; research and propose product enhancements; and promote engineering best practices.

Design, build, and operate the high-availability event and trigger system that links GitLab and third-party events to AI-powered Duo Flows. Work in GitLab's Rails monolith, scale for high throughput, influence architecture, add trigger types, collaborate cross-functionally, and participate in Tier 2/3 on-call rotations to troubleshoot production issues.

The Senior Software Engineer will lead the development of backend systems for payment processing, collaborating with teams, setting goals, and fostering quality and ownership in code development.

As a Staff Backend Engineer at GitLab, you'll enhance backend infrastructure for CI, integrate AI features, and ensure reliability and performance in CI/CD workflows.

Ownership of backend features for Agentic Tools: design and implement GraphQL/REST APIs, build secure scalable Ruby on Rails services, improve RSpec automated tests, collaborate across product and AI teams, participate in Tier 2 on-call, and shape architecture for AI agent interactions with GitLab.

As a Senior Backend Engineer at DuckDuckGo, you'll lead backend projects, mentor engineers, and develop AI-enhanced features for the company's privacy-centric product line.

The Senior Back-End Software Engineer designs, develops, and maintains scalable backend systems while taking ownership of the software development lifecycle.

Nango is hiring Senior and Staff Backend Engineers to design, build, and optimize backend systems and APIs, collaborating with customers and driving product strategy.

Take end-to-end ownership of backend features and SaaS services in a microservices architecture. Design, implement, deploy, and operate scalable, reliable Node.js services. Work with Redis Streams, MongoDB, Kubernetes, and ensure test coverage, performance tuning, and collaboration with cross-functional teams.

Lead technical execution and micro-architecture for backend platform services. Own design, implementation, and operation of scalable, resilient blockchain-integrated backend and indexing systems. Mentor engineers, enforce engineering standards, drive AI-first practices, write production Go and TypeScript code, and collaborate with Product, Security, DevOps, and Infrastructure teams.

Lead end-to-end projects for Pyroscope: design, build, and operate ingestion, storage, and query for a distributed profiling database. Drive product decisions, participate in customer calls, own on-call rotations, improve operational excellence and cost, collaborate across Grafana teams, and contribute to the open-source Pyroscope project.

Design and implement high-performance backend services (Elixir/Phoenix), operate and evolve the managed cloud platform on Kubernetes/AWS, build declarative infrastructure with IaC and GitOps, improve observability and reliability, and collaborate remotely with periodic in-person meetings to support document processing workflows at scale.

As a Senior Backend Engineer, you'll design and maintain core libraries for blockchain transactions, enforce security boundaries, and contribute to best practices in a post-quantum environment.

Design, build and operate backend services in AWS for a multi-service hospitality platform. Implement new features, payment and EPOS integrations, improve performance, monitoring and deployment automation using TypeScript/Node.js and databases like Mongo Atlas, Postgres RDS or DynamoDB. Collaborate in a UK development team and automate infrastructure, CI/CD and QA.

Design, build, operate, and maintain multi-tenant telemetry databases (metrics, logs, traces) for Grafana Cloud. Deliver features end-to-end, participate in on-call rotations, contribute to open-source projects, collaborate remotely, and improve reliability, performance, and scalability of distributed systems running on Kubernetes and major cloud providers.

Design, build and maintain backend services for multiplayer games. Implement distributed systems, CI/CD, containerised microservices, databases (SQL/NoSQL), cloud infrastructure, and documentation. Collaborate on estimates, support teammates, and ensure high-quality deployments and operational standards.

Lead backend architecture and delivery for large-scale multiplayer game services. Architect distributed systems, write code, deploy infrastructure, mentor engineers, liaise with clients, design cost estimates, enforce best practices, and drive CI/CD, security, and production readiness.

Design, build, deploy and maintain backend services for large-scale multiplayer games. Collaborate with peers and stakeholders on estimates, implement features, ensure CI/CD, docs, security, and support team members while operating autonomously in a remote environment.

Build and operate backend services for an AI-native context layer: ingestion, indexing, retrieval APIs, multi-tenant SaaS architecture, agent integrations, observability instrumentation, and production-grade reliability. Collaborate across product and infrastructure, iterate quickly, and shape technical direction.

Design, build, and operate production-grade frontend, backend, and infrastructure systems. Use AI-assisted coding tools, decompose ambiguous problems, modernize existing systems, improve reliability and observability, lead technical discussions, mentor peers, and ensure high-quality, maintainable code and production outcomes.

Design, develop, and maintain highly scalable microservices and backends (Java/Spring) for millions of users. Collaborate with product owners, perform code reviews, respond to production incidents, mentor junior engineers, participate in team ceremonies, and potentially share on-call duties.