Top Backend Jobs in Manchester

Design and deliver end-to-end features for DAP onboarding and repository/background flows. Build autonomous and scheduled agents that act on customer codebases, improve onboarding experience, collaborate on shared interfaces, review code and designs, and contribute to an async-first, distributed team's technical quality and ownership culture.

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.

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.

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 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.

The Backend Engineer III will collaborate with cross-functional teams to design and build parts of Monzo's banking platform using technologies like Go and Kubernetes, focusing on customer outcomes and resilient software.

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.

Lead design and implement scalable backend services using Java and serverless technologies. Architect RESTful APIs and event-driven systems, optimize performance and cost, contribute to frontend components when needed, maintain CI/CD and IaC, provide technical leadership, mentor junior engineers, and produce documentation for shared components.

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.

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.

Maintain and support client websites by writing clean, scalable C# back-end code (MVC). Troubleshoot and profile applications, follow security best practices, participate in code reviews, contribute to planning and estimations, and collaborate with support and technical teams.

Develop and maintain the backend ecosystem for the Alta Video Management System, focusing on cloud-based distributed systems and coding quality.

Own and evolve an Angular 21 frontend and supporting Node.js (NestJS) backend for MFA and authentication flows. Design REST APIs, integrate identity platforms, deploy and operate services on AWS using IaC, write automated tests, participate in CI/CD, and collaborate with product and security stakeholders to deliver secure, reliable authentication experiences.

Lead backend feature delivery and technical strategy for high-traffic services. Design, implement, test, deploy and maintain scalable cloud-based systems (AWS). Champion best practices (TDD, CI/CD), ensure security, debug and optimise code, mentor teammates, and collaborate with product and design to deliver customer-focused solutions.

Design, build, and operate scalable, fault-tolerant backend services and APIs for forecasting, scoring, and data processing. Integrate ML models into production, write maintainable Python, participate in on-call rotations, lead reviews, mentor engineers, and drive cross-cutting platform improvements.

Build and scale AI-driven backend systems and infrastructure for retail intelligence: develop the AI chatbot, agents, tooling and MCP integrations, evolve data processing across AWS and bare metal, own features end-to-end, and mentor team members.

As a Back-end Engineer, you will design and build modern digital products and APIs using C#, TypeScript, and .NET Core, ensuring secure and scalable applications, while collaborating in a multidisciplinary team.

As a Backend Engineer, you will design scalable APIs, create Engineering Requirement Documents, and build test suites for product analytics and performance.

Build and maintain backend services and APIs powering onboarding, accounts, payments, cards, transfers, rewards, FX, KYC and risk. Design reliable, secure, observable systems for real transactions; integrate with partners, payment providers and AI services; improve operational workflows, data integrity, and incident handling while collaborating with product, frontend, mobile and AI teams.

The role involves leading the mk8s Core Team, managing technical projects, coaching engineers, and participating in hands-on coding and incident response.

Build and maintain high-performance, fault-tolerant distributed backend services and data pipelines for large genomic and health datasets. Design storage, indexing, and async event workflows; optimize latency, throughput, and reliability. Partner with bioinformatics and product teams to validate scientific accuracy and guard AI-driven responses.

As a Senior Python Backend Engineer at VidRush, you'll build AI-driven video production systems, ship production-level ML/LLM services, and work closely with product teams while ensuring high autonomy and delivery speed.