Top Software Engineer Jobs in London

Experienced software developer needed to work on a greenfield project for a proprietary trading firm. Responsibilities include developing a risk management and trading platform, creating scalable services, efficient data storage, and high-performance components. Requires a Bachelor's degree in CS or Engineering, 3+ years of experience in quantitative trading infrastructure, and proficiency in Python, Java, C++, and various technologies.

As a FullStack Software Engineer at Algolia, you'll help design and implement a powerful personalization engine. Collaborating with a cross-functional team, you'll own key features from implementation to production, focusing on creating user-friendly interfaces and robust backend solutions to enhance the customer experience with the personalization tools.

You will design and develop ranking and understanding features, collaborate with a diverse team, and ensure the quality of our data pipelines. You'll need experience in operating production pipelines, handling large datasets, building APIs, and familiarity with cloud providers.

Join Algolia as a Senior Software Engineer on the Metis team responsible for the cloud-based scalable architecture for NeuralSearch. Design and build the Metis system, operate it, and contribute to solving complex challenges in distributed systems. Collaborate with a remote team to deliver high-quality products. Must have experience with distributed systems, large datasets, and high traffic.

As a Backend Software Engineer, you will develop and maintain systems, drive product decisions, and work autonomously on impactful projects. You'll own the entire project lifecycle, tackle complex domains with simple solutions, and collaborate within a high-performing, agile team to enhance the platform and deliver results for our customers.

As a Software Engineer at Encord, you will be responsible for driving product and team growth by taking end-to-end ownership of projects, addressing complex challenges with simple solutions, and collaborating with a high-performing team. Your impact will be tangible, and you'll engage in system development and maintenance across the stack.

As a Senior Software Engineer focused on APIs, you will develop backend services and API solutions, ensuring performance, security, and reliability. Responsibilities include designing and maintaining high-performance APIs, managing deployments, collaborating on API specifications, and optimizing API performance through testing and troubleshooting.

As a Frontend Engineer at Writer, you will collaborate with the founders and engineering team to build and scale user experiences, manage the design system, optimize frontend performance, and create reusable components. You will leverage Mobx, React, and TypeScript, ensuring that web applications meet high UX and UI standards.

You will design and implement new features for the Corda 4 platform, resolve issues, and provide support to other teams. Strong skills in Kotlin and Java with experience in JVM technologies and distributed systems are required. You'll collaborate with cross-functional teams to translate requirements into functioning production systems.

The QA Test Engineer will develop, execute, and document functional and non-functional test cases for R3's product suite, focusing on both manual and automated testing within an Agile environment. Responsibilities include creating test plans, maintaining test suites, and collaborating with various teams to ensure software quality, particularly in blockchain networks.

As a Software Engineer at Optiver, you'll collaborate with the trading team to design and develop software for new trading products, focusing on time-to-market and technical complexity. Your role includes building autotrading strategies and pricing systems while engaging in a start-up dynamic that influences global technical initiatives.

The role involves full stack software engineering to develop a web application for simulating and managing data centre digital twins. Responsibilities include collaboration with team members, front-end and back-end development, debugging, implementing tests, code reviews, and security enhancements.

As a Senior Software Engineer II at CrowdStrike, you will design and implement solutions for scalability, improve monitoring effectiveness, and automate processes. You will work with security analysts globally, enhancing core systems for real-time protection against cyberattacks and participating in on-call rotations for operational stability.

Quantcast is seeking a Software Engineer to join the Payments & Incentives Team. This role involves developing software for payment and billing processes while collaborating with internal teams. The engineer will utilize strong Java skills, focus on API and microservices design, and adhere to best practices in code quality and testing.

The Front Office Software Engineer will develop, support, and maintain investment, trading, and analytics platforms while collaborating with commercial trading teams and the Data Science team to enhance trading processes and create analytics tools. The role emphasizes cloud-first development and modern software engineering practices.

The role involves developing flight management software for the Airbus Zephyr programme. Responsibilities include gathering requirements, designing and coding software, testing, deployment, and ongoing maintenance, with a focus on compliance with MISRA-C++ and RTCA DO-278 standards.

The Software Verification Engineer will work in a team to implement DO-178C Verification and Validation activities for Zephyr HAPS Airborne Software, focusing on reviewing high and low-level requirements, creating verification strategies, and performing software analysis and testing to ensure compliance and improve processes.