Top Software Engineer Jobs in London

As a Software Developer Engineer in Test (SDET) at Dataiku, you will play a crucial role in ensuring the delivery of high-quality products to customers. Responsibilities include coding advanced automated test suites, defining testing plans and strategies, collaborating with developers, and improving test infrastructure. Experience in software test engineering with automation, object-oriented languages, and collaboration with developers is required.

Senior Golang Software Engineer role at IDT, responsible for full software development life-cycle, working on high-performing applications, and driving technical excellence. Requires 5+ years of production experience, deep knowledge of Golang, and proficiency in modern design patterns.

As a Senior Software Engineer at VIOOH, you will work on extending the Java codebase, developing back-end services and microservices, and contributing to architectural and design decisions. You will collaborate with a dynamic team in a hybrid workplace environment, focusing on continuous improvement and innovation.

As a senior software engineer, you will help build and scale the systems and services that form the foundation of Alpaca and empower millions of users that are trading billions of dollars worth of assets. You will be responsible for building a modern clearing and settlements platform and contribute to architectural decisions for designing scalable and reliable systems.

As a Senior Engineer on Growth Adoption Core team at HubSpot, you will write and ship production code, build new features and tools, collaborate with cross-functional teams, and help thousands of customers meet their goals and grow their companies.

As a Junior Software Engineer at Firefly, you will be responsible for implementing product features, collaborating with teams, and working on web applications and APIs using C# and React. You will also be involved in unit testing, code reviews, and fixing customer issues.

As a senior software engineer at Alpaca, you will be part of the payments team responsible for building and scaling a modern global payments and treasury platform. You will work on highly scalable, event-driven systems, and contribute to the company's growth across global markets and asset classes.

Seeking a Staff Software Engineer with a passion for machine learning operations and data engineering to join the ML Data team at HubSpot. Responsibilities include leading and innovating in machine learning data infrastructure, providing strategic direction, collaborative problem-solving, and mentorship. Looking for candidates with a track record in AI/ML system projects, ability to collaborate across the organization, industry best practices, and commitment to data quality, security, and privacy.

Seeking a Staff Software Engineer with a passion for machine learning operations and data engineering to join the ML Data team at HubSpot. Responsibilities include leading and innovating machine learning data infrastructure, offering strategic direction, collaborative problem-solving, and mentorship. Looking for candidates with a proven track record in data-intensive AI/ML system projects, ability to collaborate across the organization, industry best practices, and commitment to data quality, security, and privacy.

Join the Global Security Products group at GoDaddy as a Senior Software Engineer to work on rebuilding products and migrating to AWS. Collaborate with cross-functional teams, solve technical challenges, mentor team members, and ensure high-quality, scalable solutions. Experience with backend RESTful API development and expertise in Go, Python, PHP, or Java is required.

Senior Software Engineer responsible for implementing functionality, improving software architecture, and maintaining reliable operation of services at Fivetran. Required skills include Java programming, experience in distributed systems, cloud platforms, and problem-solving abilities.

As a Senior Software Engineer at Alpaca, you will be responsible for building and scaling systems for identity verification, risk evaluation, and account management. You will work on a global financial identity service and design reliable architectures. Your role will involve contributing to core systems, implementing backend services, and collaborating with other teams to enhance system interactions and overall software quality.

Senior Software Engineer role at HubSpot focusing on building tools and components to drive product adoption and enhance user experience. Responsibilities include writing production code, collaborating with cross-functional teams, and implementing user experiments. Strong frontend development and user-centric mindset are key qualifications.

Seeking a Senior Front End Developer to collaborate with clients in the public sector, design, develop, and implement software solutions, stay updated with front end technology trends, and contribute to project success. Must have 5+ years of experience, expertise in JavaScript, TypeScript, React, Angular, Node, SCSS, SASS, and familiarity with Agile, Scrum, and cloud platforms.

The Senior Software Engineer - Frontend at EFG (ESL FACEIT Group) is responsible for building large-scale applications using React, Redux, and Next.js. They should have experience with WebSockets, real-time messaging, and a passion for video games and esports. Ideal candidates will have knowledge of Webpack, testing frameworks, optimization strategies, web best practices, and scalable architecture systems.

Seeking a skilled Software Engineer with expertise in RenderMan to lead the development, optimization, and maintenance of the rendering pipeline. Responsibilities include collaborating with artists, technical directors, and engineers to ensure high-quality rendering output, implementing new rendering techniques, and providing leadership in rendering solutions. Requirements include a Bachelor's or Master's degree in Computer Science or related field, 6+ years of experience in rendering engineering, proficiency in C++ and Python, and deep knowledge of rendering technologies.

Senior Software Engineer - Front End role at Doccla, responsible for building the Virtual Ward and clinician portal to improve clinical outcomes for patients across the UK. Requires self-motivation, experience with Elm language, and strong UX/UI design skills. Experience with web components and quality management system IEC-62304 is a plus.