Top Software Engineer Jobs in London

The Senior Software Engineer in Test is responsible for leading test strategy, developing automation frameworks, mentoring engineers, and improving testing culture within the organization. Responsibilities include executing comprehensive test plans, collaborating with teams, and overseeing quality processes.

Design, develop, and deliver scalable software solutions for IoT deployments, enhancing performance and reliability using modern tools and algorithms.

The role involves building advanced security tools and detection systems, leading automation efforts, and collaborating with teams on security strategies at Grafana Labs.

The Senior Software Engineer role involves developing scalable systems using PHP and Laravel, modernizing codebases, managing technical debt, and collaborating with cross-functional teams to deliver high-quality software solutions.

As a Senior Software Engineer, you will design and develop Fanvue's real-time chat platform, build event-driven APIs, and improve system performance while mentoring junior engineers.

Join the 3D graphics team at Mapbox, working on open source vector map rendering, graphics programming, and improving performance for location technologies.

The Senior Software Engineer will develop full-stack features for Stord's Unbox product, focusing on customer-centric solutions, cloud services, and collaborative problem-solving.

The role involves developing AI-driven solutions to enhance emergency call center efficiency, leveraging data, and collaborating with cross-functional teams.

Ophelos is building a talent pool for future engineering roles, encouraging applications from experienced and rising engineers. They value empathy in debt management and are expanding into European markets.

As a Lead Software Engineer at Anima, you will enhance existing products and develop new ones focused on healthcare technology. You will work with various technologies, join customer calls, and potentially transition into a managerial role while impacting patient care.

Join Rothesay as a Quantitative Engineer to build functionalities on a new platform using Rust and Python, focusing on financial analytics.

Design and develop software solutions from scratch, collaborating on government projects, and participating in the software development lifecycle.

Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.

The Senior Engineer I will lead projects, design and develop features, and ensure high availability of Menlo's security platform, focusing on backend development and cloud technologies.

As a Senior Blockchain Engineer, you will design and optimize smart contracts and blockchain infrastructure, collaborate with teams to ensure secure solutions, and lead development efforts in the DeFi ecosystem. You will analyze technologies, mentor staff, and enhance performance while maintaining security best practices.

The role entails developing scalable backend systems using Node.js and Nest.js, ensuring high performance and security, and optimizing microservices architecture. Responsibilities also include system monitoring, code quality checks, and collaboration within a fintech context.

Develop and maintain backend features for gaming organizations, integrating Web2 and Web3 technologies while ensuring performance and scalability.

The Senior Software Engineer will manage full software development life cycle, focusing on data engineering, project leadership, code quality, and customer-centric development.

As a Senior Software Engineer for Windows Desktop App, you'll develop secure applications for Microsoft Windows, collaborating on features and enhancements for DuckDuckGo's flagship browser.

As a Senior Software Engineer, you'll enhance Firefox desktop integrations, tackle OS challenges, and collaborate on project goals with your team.

The role involves designing, building, and maintaining high-scale backend services for email sending and routing, enhancing system reliability and performance.

As a Staff Software Engineer, you will build platform infrastructure for real-time data processing, solve optimization problems, and implement APIs and UI designs.

Design and build backend systems for a flexibility engine, collaborating across teams and ensuring reliability for live deployments. Requires experience in distributed systems and maintainable code.

As a Staff Software Engineer focused on AI, you'll integrate AI features into the logistics platform, utilizing Elixir, TypeScript, and various ML tools for real-time data processing and predictive analytics. Responsibilities include API design, building fault-tolerant systems, collaborating with data scientists, and mentoring engineers.

Design and maintain payment services and SDKs as a Senior Software Engineer, collaborating with teams on features, mentoring engineers, and ensuring security compliance.