Top Software Engineer Jobs in London

The Staff Software Engineer will lead projects, enhance tooling, collaborate with teams and clients, and uphold technical standards within a hybrid work environment.

Design, build, and maintain backend services while optimizing CI/CD systems and cloud infrastructure. Collaborate with teams to improve service reliability and developer experience.

The Senior Software Engineer role involves building scalable solutions using .Net, crafting responsive UIs with React, and owning the SDLC while collaborating with teams and ensuring software quality through testing.

As a Senior Software Engineer, you will design architecture, lead AI-driven development practices, mentor engineers, and optimize systems for high availability and performance.

Design, build, test, and operate Astronomer’s production platform at scale. Own CI/CD, deployment, reliability, and observability practices; collaborate cross-functionally to set platform standards, participate in incident management, and document systems and processes.

The Lead Software Engineer will drive technical strategy, own high-impact projects, mentor team members and foster a supportive culture for engineering excellence.

The Senior Software Engineer will lead the Core Data team to improve APIs, systems, and data pipelines, focusing on backend engineering and team mentoring.

Senior engineer who designs and develops APIs and services, mentors engineers, works in Agile teams, participates in on-call rota, and helps drive a cloud migration to GCP. Collaborative, experimentation-focused role using C#, Node and React.

As a Staff Software Engineer, you'll lead full stack projects, mentor teams, ensure code quality, and influence engineering practices to deliver client-focused software solutions, with a strong emphasis on AI integration.

The Senior Software Engineer will lead the delivery of software projects, practice TDD, mentor developers, and influence technical direction while writing code and collaborating with clients and teams.

Lead SRE/DevOps practitioner driving CI/CD, automated testing, containerization, dependency upgrades, secure deployments, observability, and resilient cross-datacenter topologies. Works hands-on with development teams to implement TDD, test data/masking, Renovate, Liquibase, Ansible, Docker/OpenShift, and build tooling to enable safe, rapid release cadence.

Design and build scalable, reliable backend services and APIs; own architecture through production; collaborate cross-functionally; drive technical decisions; build secure, observable distributed systems; mentor engineers and resolve production/performance issues at scale.

Design, develop, and maintain Ruby/Gherkin-based automated test frameworks and reusable test scripts. Create automated acceptance tests using BDD, ensure accessibility and security standards, support performance test suites, collaborate with developers and product owners, and continuously improve automation practices and code quality.

Build and maintain backend-first features and integrations for Triptease's marketing channels. Work across the full stack (primarily backend), design scalable distributed systems, implement CI/CD on cloud platforms, collaborate closely with product teams, pair program, write tests (TDD), and contribute to squad strategy and product quality.

Lead design and implementation of a business-critical data platform. Collaborate with stakeholders to define problems, propose technical solutions, own delivery to production, identify reliability issues, deliver architectural improvements, and influence the roadmap to ensure technical excellence in software and data engineering.

Design and develop scalable, secure frontend web applications for connected embedded systems. Lead frontend architecture, collaborate with backend/embedded teams, implement device provisioning, telemetry visualization, and remote management UIs. Optimize performance, accessibility, and maintainability; mentor engineers, participate in reviews, and drive frontend best practices.

Design, develop, and maintain scalable web applications using .NET backend and Angular/React frontend. Collaborate on requirements, implement RESTful APIs, optimize performance, debug, maintain documentation, support end-users, and work within CI/CD and DevOps workflows.

Design, develop, customize and integrate Microsoft Dynamics 365 CRM/CE solutions. Build entities, forms, workflows, plugins, reports and dashboards using CRM SDK, C#, JavaScript, ASP.NET and SQL. Troubleshoot issues, estimate implementation approaches, collaborate with stakeholders, document solutions, and mentor junior developers. Banking domain experience preferred.

Build and maintain a mission-critical .NET enterprise platform and event-driven microservices. Implement Kafka-based integrations and CDC pipelines, write and tune SQL Server/T-SQL, containerize and deploy with Docker/Kubernetes, use Azure and CI/CD pipelines, diagnose production issues end-to-end, participate in Agile ceremonies, and collaborate with product, QA, DevOps and partners while supporting on-call rotations.

We are seeking a software engineer to build and validate resilient distributed systems, enhance CI pipelines, and improve testing strategies for cloud applications.

The Backend Software Engineer will develop and maintain backend systems for data processing related to coffee farming, utilizing Python and PostgreSQL. Responsibilities include feature development, problem-solving, and adapting systems to regulatory changes while ensuring system resilience.

Design, build and maintain scalable, secure software solutions. Collaborate with product and engineering teams, influence architecture, implement CI/CD and DevOps practices, mentor engineers, and support microservices, APIs and cloud-native platforms.

Design and implement identity infrastructure for authentication and authorization across enterprise systems. Build SSO, MFA, federated identity, and authorization systems (ReBAC/ABAC/RBAC). Implement governance policies for compliance (NIST, SOC2, ISO27001), and advise stakeholders on identity management best practices.

Lead design and delivery of large-scale, cloud-native backend systems. Own end-to-end solutions, define architecture and engineering standards, investigate production issues across environments, mentor and hire engineers, and drive technical direction and adoption of new tools (including AI) to improve developer velocity and reliability.

Own and deliver complex backend features end-to-end for cloud-native banking systems. Provide technical leadership on architecture, code quality, incident response, and hiring. Mentor engineers, collaborate with Product to translate requirements, and ensure scalable, secure, high-performance production services.