Quality Engineer at Code and Theory | London, England

Join our esteemed Quality Engineering team at Code and Theory, where we prioritize delivering exceptional web experiences and custom products that truly impress our clients and their users. Collaborating closely with our engineering, design, and product teams, your role will involve rigorous testing and breaking of software to address real-world challenges. Our QA Engineers exemplify proficiency, teamwork, and commitment, executing established testing methodologies to enhance our code quality. You will work hand-in-hand with senior leadership, continually striving to elevate customer experiences and foster sustainable business growth. Your passion for software quality is evident, as you appreciate its societal impact and the value it brings to our clients. You have a deep understanding of how to create high-performance, secure, compliant, and accessible experiences for a wide audience. Your exceptional quality assurance skills are complemented by a solid grasp of contemporary tools and methodologies.

We are on the lookout for a skilled Lead Data Engineer who can design and develop robust data infrastructure that fuels insightful data analysis and innovative predictive and generative models. The ideal candidate will possess a product-driven mindset and have a proven track record of transforming business requirements into sophisticated technical solutions. You will have the opportunity to implement best practices and build the foundation for a top-tier data organization. In your role, you will collaborate with various stakeholders across the agency, exercise considerable autonomy in your technical choices, and significantly contribute to our data strategy and the culture of our data engineering team.

Join us on our transformative journey at Deliveroo, where innovation, impact, and growth are at the heart of everything we do. As part of our Engineering teams, you will encounter intricate technical challenges in a global, three-sided marketplace, crafting and scaling systems that serve millions of customers, riders, and partners daily.From real-time logistics to robust infrastructure and marketplace optimization, we create and manage technology that fuels Deliveroo’s expansive growth.We are seeking a Staff Code Quality Engineer to become a vital member of our London team. In this pivotal role, you will help establish the systems and standards that define excellence across our global codebase, enabling thousands of engineers to deliver software with speed and confidence.Discover more about our Engineering team—what motivates us, our working style, and what you can anticipate.

As the Chief of Staff at Genomics England, you will play a pivotal role in shaping and executing strategic initiatives across our organization. You will collaborate closely with senior leadership, ensuring alignment of our goals and objectives while driving operational excellence. Your expertise will be crucial in optimizing workflows and fostering a culture of innovation and accountability. This position offers a unique opportunity to influence the future of genomics in healthcare.

Join Eurostar International Ltd. as a Quality Engineer and play a vital role in ensuring the highest standards of quality across our products and services. You will collaborate with cross-functional teams to implement quality assurance protocols and continuous improvement processes. Your expertise will contribute to delivering outstanding customer experiences and operational excellence.

As a Senior Quality Assurance Engineer at Hudl, you'll play a pivotal role in ensuring the quality and reliability of our cutting-edge software solutions. You will collaborate closely with development teams, utilizing your expertise to design and implement comprehensive testing strategies, automate testing processes, and contribute to the continuous improvement of our products. Your keen eye for detail and problem-solving skills will help us deliver exceptional user experiences.

Role overview Genomics England is looking for a Software Engineer with solid Python experience to help create software that drives genomics research and benefits patient care. The team combines engineers and scientists who work together to build scalable tools that advance the organization's mission. What you will do Develop and maintain software applications using Python for genomics-related projects. Collaborate with fellow engineers and scientists to design solutions that back both research and clinical goals. Contribute to technology projects aimed at improving patient outcomes. Location This role is based in London.

At SumUp, our mission is to bridge the gap between merchants and consumers, fostering thriving local communities. We are dedicated to creating a rewarding loyalty experience that connects individuals to the small businesses they cherish, while facilitating seamless, cost-free transactions for our merchants. With SumUp Local, we prioritize loyalty and merchant discovery on every checkout screen, empowering businesses to expand their customer base while growing our consumer network. This role presents a high-impact opportunity to tackle diverse challenges at a rapid pace with a global perspective. You will utilize strategic thinking, creativity, and innovative ideas within the Consumer Tribe, driving advancements in SumUp Local and defining the connection between consumers and merchants. Collaboration across various teams will be essential, providing broad exposure and the chance to influence product development at all levels. If you are passionate about building consumer-centric products, designing loyalty platforms, and supporting small businesses, this position offers the chance to make a significant impact.

Greentank is hiring a Mechanical Design Engineer in London, England. This role reports to the VP of Atomization & Innovation and centers on designing and developing vaporization devices, with a strong focus on pre-loaded tray packaging and capping solutions. The position supports projects from initial concept through to production, working closely with product specialists and other teams. Candidates based in Canada or the United Kingdom are invited to apply. Greentank offers flexible work arrangements, including remote, hybrid, or in-office options, depending on location. Legal authorization to work in your country of residence is required. What you will do Create and maintain complex 3D CAD models for both components and assemblies. Produce detailed engineering drawings for manufacturing, following GD&T standards. Manage CAD data, version control, and drawing updates in line with the Business Management System. Support change control processes and keep Bills of Materials (BOMs) organized. Develop new mechanical solutions for product components. Team culture Greentank values innovation, collaboration, and accountability. The team operates with integrity, embraces diversity and inclusion, and encourages creative thinking. Employees contribute to a workplace where everyone is respected and inspired.

Overview Join Tipalti as a Senior Software Engineer and play a crucial role in developing and delivering impactful product features that enhance customer satisfaction and address significant business challenges. Collaborate closely with Product Managers, Designers, and cross-functional engineering teams to transform product visions into scalable, secure, and maintainable software solutions. This role integrates hands-on engineering with a product-focused mindset, allowing you to define requirements, engage in technical discussions, and influence user experience while owning the entire software development lifecycle. Responsibilities Engineering & Delivery Create robust, efficient, and well-tested code across the software stack. Implement new features and enhancements in alignment with product priorities. Engage in design and architecture discussions to refine technical direction. Review code with peers, uphold clean code practices, and ensure quality standards are met. Product Collaboration Partner closely with Product Managers to clarify requirements and propose solutions. Proactively raise questions, identify edge cases, and assist in refining specifications. Contribute technical insights into prioritization and product decision-making. Cross-Functional Communication Communicate effectively with designers, engineers, and stakeholders. Share knowledge and mentor team members as appropriate. Collaborate with external partners and vendors on integration work when necessary. Requirements You are: Skilled in full-stack development and enthusiastic about learning new technologies. Committed to writing clean, maintainable, secure, and thoroughly tested code. Collaborative and communicative, thriving in team environments. Curious about customer needs, adept at translating them into technical solutions. Dedicated to continuous learning and sharing insights with your team. Preferred Technical Skills Proficient in JavaScript / TypeScript, Node.js, React (or similar technologies). Experience with REST APIs or microservices. Familiarity with MongoDB. Knowledge of cloud services, particularly AWS. Why Join Tipalti? Become part of an innovative and dynamic team at Tipalti, where your contributions will directly impact the growth and success of our products and services.

Join Carta as a Senior Software Engineer and play a vital role in developing innovative software solutions that empower businesses and transform the way equity is managed. Collaborate with a talented team of engineers to create scalable applications that enhance user experience and drive efficiency.

Waymo, an innovative leader in autonomous driving technology, aims to become the world's most trusted driver. Originating as the Google Self-Driving Car Project in 2009, Waymo has dedicated itself to creating the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access and reduce traffic-related fatalities. The Waymo Driver powers our fully autonomous ride-hail service, having successfully completed over ten million rides, leveraging extensive experience from over 100 million miles driven on public roads and tens of billions of simulation miles across 15+ U.S. states.The DUE ML Core London team is at the forefront of developing and managing scalable machine learning systems, simulation workflows, and insightful tools aimed at enhancing evaluation processes and developer onboarding experiences. By integrating expert human insights with state-of-the-art machine learning models, we provide critical training and evaluation data across numerous metrics and components that define the Waymo Driver.We are on the lookout for enthusiastic researchers and software engineers eager to innovate ML methodologies for evaluation systems and propel performance enhancements throughout our technology stack.

About the PositionAt Jane Street, we are constantly on the lookout for talented software engineers across all our offices. Technology lies at the heart of our operations, and our engineers play a crucial role in every facet of our business.We embrace functional programming, utilizing OCaml—a statically typed functional programming language—as our primary tool. Recently, Python has also become integral to our research and trading processes, serving as the preferred language for data analysis, visualization, and machine learning.We are strong advocates for open-source software, actively employing it in our daily tasks and contributing over a million lines of our own code to the open-source community.About YouExceptional programming skillsA profound passion for technology. While there is no specific checklist, we utilize software to tackle diverse challenges, so we welcome experience spanning machine learning, systems administration, and programming language design.Excellent interpersonal skills. Software engineering at Jane Street is highly collaborative, and we seek individuals who thrive in small, close-knit teams.No prior experience in functional programming, OCaml, Python, or finance is required; we are eager to hire talented engineers and provide the necessary training.Fluency in English is mandatory.To learn more about our software engineering interview process, visit our interview prep page.

About the Position Join Jane Street as a Senior Network Engineer, where you will play a pivotal role in enhancing our network infrastructure to accommodate growing business demands. Your expertise will help drive automation and explore innovative AI solutions to optimize our operations. At Jane Street, we operate a multi-vendor, highly available network infrastructure that supports diverse traffic profiles, from high-speed trading to standard internet connectivity. A typical day on the Network Engineering team includes: Collaborating on new data centre and colocation initiatives, optimizing WAN routing, and engaging in cross-team design projects. Interfacing with stakeholders to identify business needs and develop cutting-edge network features and capabilities. Leading reactive support tasks while also initiating proactive infrastructure enhancements, ensuring detailed documentation to minimize outages and improve troubleshooting efficiency. Exploring AI and machine learning enhancements to streamline operations and continuously elevate service quality. Utilizing your networking expertise to scale our infrastructure while maintaining exceptional standards for performance and reliability. Documenting solutions and processes meticulously to enhance team efficiency. If you are passionate about innovation in a complex network ecosystem, excel at building scalable systems and documentation structures, and are curious about the applications of AI in network operations, this role offers a significant opportunity to impact Jane Street. We are excited to learn from your expertise and unique insights.

Join G MASS as a Senior Software Engineer and play a pivotal role in supporting a prominent Investment Manager. This initial 6-month engagement places you within a core engineering team that operates in a dynamic, quantitative investment setting. You will be integral in enhancing the technology and data frameworks that power systematic trading strategies and cutting-edge research. Your contributions will enable investment teams to efficiently access, process, and leverage extensive market and research data in a fast-paced, analytics-driven environment.Key Responsibilities:Architect, develop, and refine large-scale data and infrastructure platforms that underpin trading and research activities.Establish and sustain systems designed to process vast amounts of data from a variety of global sources.Collaborate closely with researchers, traders, and fellow engineers to ensure seamless support for investment workflows.Enhance the scalability, performance, and reliability of distributed systems.Utilize Java and Python primarily in the development and maintenance of services.Engage with modern data and messaging technologies, including Kafka, ArcticDB, and MongoDB.

Location: London, UK (hybrid) Role Type: Full-time Join our innovative team at Materiom as a Senior Software Engineer. In this pivotal role, you will engage in the rapid prototyping, development, and productization of data-driven and AI-centric web applications. Your contributions will play a vital role in overcoming R&D challenges for pioneers in bio-based materials. You will be tasked with designing and building robust full-stack systems, making significant architectural contributions, and translating complex user needs into actionable technical strategies. You will also champion engineering best practices within our mission-driven startup culture. Your technical prowess across the stack, particularly on the front end, combined with a product-focused approach, will ensure the delivery of high-impact results. As you design user-centric applications, you will transform prototypes into actionable solutions that propel Materiom’s mission forward. Collaborating closely with Materiom's senior leadership team, including the Co-CEOs and CTO, you will be instrumental in shaping our product and platform. #python #fastapi #react #typescript #GCP #PostgresSQL

Intercom is the leading AI Customer Service platform dedicated to transforming how businesses engage with their customers. We empower companies to provide outstanding customer experiences through our innovative solutions.Our advanced AI agent, Fin, is at the forefront of customer service technology, enabling businesses to deliver exceptional, always-on support. Fin seamlessly integrates with our Helpdesk to form the Intercom Customer Service Suite, a comprehensive solution designed to address both simple and complex customer inquiries.Since our inception in 2011, we have earned the trust of nearly 30,000 businesses worldwide, setting a new benchmark for customer service excellence. Our core values drive us to challenge norms, work with agility, and consistently deliver outstanding value to our clients.What’s the Opportunity?Recently, we have seen a surge in demand for skilled software engineers who collaborate closely with our strategic customers, helping to align their business objectives with our AI capabilities through Fin. As a pioneering Senior Forward Deployed Engineer, you will engage with our R&D team to influence product direction while creating significant business impact for our customers.Your contributions will be crucial in redefining how our key clients enhance their customer support operations. You will collaborate with customers and our go-to-market team to deeply understand their needs, and design, develop, and implement tailored solutions.If you seek a role that offers ownership, creativity, and the chance to lead R&D and go-to-market initiatives in a dynamic environment, this position is ideal for you.What Will I Be Doing?Facilitate the adoption of Fin by guiding prospects to harness the full potential of Intercom’s AI capabilities, automating and scaling their support operations.Engage deeply with strategic customers to comprehend their business challenges and technical requirements, offering insights to achieve exceptional results with Fin.Act as a technical expert and trusted advisor, collaborating directly with customer technical teams, coding alongside them to ensure successful project completion.Work in close partnership with Sales, Success, and Product teams to guarantee seamless customer experiences, project success, and actionable product feedback.Contribute to the evolution of the Forward Deployed Engineering function by documenting best practices and sharing insights garnered from customer interactions to facilitate our growth.

About Freetrade Freetrade aims to make investing accessible and affordable for everyone. The company continues to operate independently after joining IG Group, with a focus on expanding its product lineup and improving the investment experience for customers. Current projects include adding features like mutual funds, bonds, family investment tools, and exploring new technologies to enhance the platform. Role Overview The Quality Assurance Engineer will help ensure the reliability of Freetrade’s software products. This role centers on designing and running automated tests, especially for end-to-end platform coverage and stable releases. The position is based in London. Main Responsibilities Design and integrate automated tests into the CI/CD pipeline for functional, integration, and regression coverage. Develop and maintain automated test scripts for both web and mobile applications. Identify, analyze, and document defects, functional discrepancies, UI issues, and data inconsistencies with attention to detail. Work with cross-functional teams to share feedback from testing and support product quality improvements. Contribute to the team’s knowledge base and promote quality-focused practices. What We’re Looking For Experience implementing testing strategies, creating test cases, and evaluating results to support production readiness. Background in functional testing across the stack, including integration, UI, regression, and REST/GraphQL API testing. Comfortable maintaining and expanding automated test suites with tools such as Playwright, Appium, and Browserstack. Ability to write clear, maintainable test code and validation scripts.

airapps seeks a Quality Assurance Engineer based in the London Metropolitan Area. This position centers on upholding and enhancing the quality of software products through thorough testing and careful analysis. Key responsibilities Test software products to uncover defects and confirm reliability Work with developers and product managers to resolve issues and refine product functionality Support continuous improvement of testing methods and overall product quality

Genomics England is looking for a Platform Engineer based in London. This full-time position centers on building and maintaining the platforms that enable genomic analysis and data processing. The work directly contributes to making genomic data more accessible and valuable for healthcare. Key responsibilities Develop and maintain platforms that handle genomic data analysis. Collaborate with cross-functional teams to design effective solutions. Ensure data processing systems are reliable and efficient to support ongoing research. Role focus This role supports research and healthcare initiatives by providing stable and scalable technology for genomic data. Platform Engineers at Genomics England play a part in advancing how genomic information is used in medical settings.