Staff Code Quality Engineer

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 logist…

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.

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.

Freetrade aims to make investing simple and affordable for everyone. Many people find investing complicated or costly, which keeps them from making the most of their savings. Freetrade is working to change that by building accessible tools and experiences. In 2026, Freetrade enters a new phase after announcing a major partnership with IG Group last year. This partnership allows Freetrade to remain independent while benefiting from the backing of a leading financial firm. The team is accelerating its roadmap, launching features like mutual funds, bonds, and family investment tools. AI technologies are also under exploration to improve the customer experience. Staff QA Engineer Role Overview The Staff QA Engineer will help define and carry out the quality strategy for Freetrade's software products. This role centers on building and improving automation frameworks with current tools, aiming for a scalable, multi-layered testing approach that supports the company's growth.

Mentis is looking for dedicated Medical/Clinical Coding Specialists to join our innovative AI project. You will play a crucial role in translating medical questionnaires into SNOMED codes on our specialized labeling platform.As a coding specialist, you will work asynchronously with de-identified data from patient questionnaires, contributing significantly to the development and enhancement of AI models focused on automated clinical coding.Key Responsibilities:Questionnaire Coding & Mapping: Accurately map questionnaire items (5–15+ per questionnaire) to SNOMED codes, covering medications, conditions, allergies, reactions, side effects, and severity indicators.Quality Assurance & Data Structuring: Maintain a high standard of accuracy and consistency in applying medical codes as per established guidelines and project specifications.FHIR Data Integration: Assist in aligning coded data with FHIR-compliant structures (training and support will be provided).Platform-Based Labeling: Efficiently utilize our dedicated labeling platform for data review, coding, and validation.Feedback & Collaboration: Contribute to refining coding guidelines, clarifying ambiguities in source data, and enhancing AI-assisted mappings.

About UsSmarkets: Revolutionizing the Betting IndustryAt Smarkets, we operate one of the most advanced prediction markets worldwide, with over £29 billion processed since our inception in 2010. With a community of over 200,000 traders globally, we are redefining betting across various domains, from sports to political markets, ensuring the most competitive prices and fair odds.Our technology stack is meticulously crafted for scalability, reliability, and speed, utilizing Linux, Kafka, Postgres, Kubernetes, along with Python 3, C++17, and React. We build the infrastructure that institutions rely on while making trading accessible to all. Our resilience has allowed us to thrive through every market cycle and industry evolution.Central to our success are our talented team members. We foster a high-performance environment where exceptional skills flourish, combining in-depth business acumen with a commercial outlook to fuel strategic growth.If you are excited about shaping the future of prediction markets with cutting-edge technology and a focus on customer satisfaction, Smarkets is the perfect place for you.Your RoleWe are seeking a highly skilled Staff Engineer to spearhead our engineering initiatives in a senior individual contributor capacity, directly reporting to the VP of Engineering. As the most senior technical individual contributor in the organization, you will be instrumental in guiding our technology stack and fostering innovation across various teams.Key Responsibilities:Serve as a senior technical authority, offering strategic direction and hands-on assistance for impactful projects while advancing the engineering roadmap.Collaborate with the VP of Engineering to optimize our tech stack and enhance development methodologies.Work in tandem with frontend and backend teams to architect scalable and reliable microservices using Rust, Python, and Typescript.Enhance service latency and performance across PostgreSQL, Redis, and Kafka-based systems.Facilitate the deployment of CI/CD, monitoring, and alerting frameworks to maintain system health and performance.Promote engineering best practices and contribute to a culture of collaboration, continuous learning, and innovation.Influence and cultivate a top-tier engineering culture.Identify innovation opportunities to drive business value and sustain a competitive advantage.About You:Proven experience in software engineering, with a solid foundation in computer science principles.Expertise in Rust, Python, and Typescript is highly desirable.Strong problem-solving skills and a passion for innovation.Excellent communication and collaboration abilities.Ability to lead and mentor junior engineers.

Convergent Research is seeking a Staff Engineer specializing in FPGA Engineering to join the team in London. This position centers on FPGA design and development for technology projects that drive ongoing research and engineering work. Role overview This role contributes to shaping technical solutions that advance the organization's research initiatives. The Staff Engineer will work closely with other engineers and researchers to address complex challenges in FPGA systems. What you will do Design and develop FPGA-based systems for a variety of research-focused projects Use advanced knowledge in FPGA engineering to tackle technical problems Collaborate with cross-functional teams of engineers and researchers Work environment The team emphasizes open communication and values creative approaches to problem solving. Collaboration and a focus on technical progress are central to the group’s work style.

About SonarSource:At SonarSource, we are dedicated to enhancing code quality and security, ensuring that potential issues are resolved before reaching production. Our innovative solutions leverage AI to streamline workflows, allowing developers to focus on their passions while significantly boosting productivity. With support for over 30 programming languages and frameworks, our tools empower developers worldwide, including major organizations like the DoD, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.Our commitment to excellence is reflected in our strong internal culture. We prioritize collaboration, accountability, and a positive work environment, fostering a community where dedication, empathy, and passion thrive. SonarSource operates with clarity and urgency, enabling us to achieve our goals effectively as a unified team.Join us at SonarSource, where CODE is not just an acronym but a guiding principle in our daily operations.

Role overview Antithesis is seeking a Senior or Staff Engineer in London, UK to focus on Hegel. The team values creative problem-solving and technical depth, with engineers regularly exchanging ideas and expertise to drive projects forward. Collaboration is a core part of the work culture. What you will do Tackle complex engineering challenges involving Hegel Support both new and ongoing projects that influence the team’s direction Work closely with colleagues to develop practical solutions Requirements Previous experience at a senior or staff engineering level Keen interest in working with Hegel Enjoys sharing knowledge and collaborating with others Motivated to try new technical approaches Location This role is based in London, UK.

At Intercom, we are revolutionizing customer service with AI technology, dedicated to empowering businesses to deliver exceptional customer experiences.Our AI agent, Fin, stands out as the most advanced customer service AI on the market, enabling businesses to provide seamless, around-the-clock customer support. When paired with our Helpdesk, it forms the comprehensive Intercom Customer Service Suite, designed to handle complex inquiries while maintaining a human touch.Since our inception in 2011, we've gained the trust of nearly 30,000 businesses worldwide, setting new benchmarks for customer service. Our commitment to our core values drives us to innovate, execute with urgency, and consistently offer outstanding value to our clients.What’s the opportunity?As a Staff Product Engineer, you will take on a pivotal leadership role within our engineering team, significantly impacting our technical direction. You will be responsible for designing and implementing both back-end and front-end systems, collaborating closely with designers, product managers, researchers, and data analysts. Additionally, you will mentor other engineers and work alongside the Engineering Manager to cultivate the team's growth and define our technical strategy.What will I be doing?In this role, you will:Shape our technical architecture to accommodate the increasing demands of our diverse customer base.Emphasize agility alongside scalability and reliability, with continuous deployment practices ensuring seamless incremental releases.Engage in all phases of software development, from ideation to prototyping, design, and implementation, blending hands-on coding with architectural leadership.Utilize cutting-edge tools and AI-powered developer resources to streamline your workflow and focus on impactful problem-solving.Participate actively in the recruitment, mentoring, and career progression of fellow engineers.Elevate the standards for technical excellence, performance, and operational reliability.

Join Attio as a Staff Product Engineer and be at the forefront of revolutionizing how teams collaborate and manage their relationships. You will play a pivotal role in the design and development of innovative products that enhance user experience and drive engagement.

Join CyberArk Software as a Staff Automation Engineer, where you will play a pivotal role in enhancing our automation frameworks. You will work closely with cross-functional teams to design, implement, and maintain automated testing solutions that ensure the highest quality of our security products. Your expertise will help us streamline our processes, improve system reliability, and reduce time-to-market.

9fin is looking for a Staff Engineer to join the team in London. This position centers on building scalable systems and advancing the company’s financial data analytics platform. Staff Engineers at 9fin help set technical direction and have a direct impact on product quality. Role overview This role involves both hands-on engineering and collaboration with peers. The work supports evolving data and user needs, with a focus on reliability and performance. What you will do Design and develop systems that handle increasing data volumes and user demands Collaborate with fellow engineers to strengthen analytics features Offer input that shapes product features and influences the customer experience Location This is an on-site role based in London.

Join our innovative team at Astronomer as a Staff Software Engineer specializing in Data. In this role, you will help shape the future of data engineering solutions that empower organizations to harness the full potential of their data. You will work collaboratively with cross-functional teams to design, develop, and optimize data pipelines and infrastructure, ensuring high performance and reliability.

Join Our Team as a Staff Software EngineerAt Deliveroo, we are dedicated to revolutionizing the way people shop and dine. Our commitment to impact, innovation, and growth is at the core of everything we do. Our engineering teams are tasked with addressing intricate technical challenges within a global, three-sided marketplace, developing and scaling systems that cater to millions of customers, riders, and partners daily.From real-time logistics to robust infrastructure and marketplace optimization, we design, build, and operate the technology that fuels Deliveroo's expansive growth.We are seeking a Staff Software Engineer to become a key member of our London, UK - Hybrid (3 days in the office) team. In this pivotal role, you will help us craft technical solutions for essential business challenges and steer the technical direction for complex, high-scale systems.Discover our Engineering team — learn about our motivations, work culture, and what you can expect when you join us.

Join unlikelyAI as a Staff Software Engineer and be at the forefront of developing cutting-edge artificial intelligence solutions. In this pivotal role, you will collaborate with a talented team to design, implement, and optimize software systems that push the boundaries of technology.As a key member of our engineering team, you'll have the opportunity to influence the architecture of our products and mentor junior engineers. We are looking for innovative thinkers who thrive in a fast-paced environment and are passionate about building scalable and efficient software.

Join Our Team as a Staff Product EngineerAt Nous, we are revolutionizing how households manage their bills, helping over 150,000 customers save money and time. With over 85% of households overpaying on their bills, our mission is to simplify and create fairness in financial management, starting with the 30 million households in the UK.Our AI-powered assistant is designed to seamlessly manage and delegate bill responsibilities, offering an elegant user experience while operating as one of the most ambitious consumer AI systems in the UK. We're not just following trends; we're establishing new ones.As a well-funded start-up led by experienced entrepreneurs, Nous is expanding rapidly, achieving over 10x year-on-year growth. We have saved customers over half a million pounds in recent months alone. Our commitment to social and environmental performance has earned us B Corp certification, showcasing our dedication to making a positive impact.We believe in high-context collaboration, which is why we are proudly office-first at our location near Farringdon station. Enjoy a well-stocked kitchen, excellent coffee, and a supportive team that drives innovation.If you're passionate about building something extraordinary and want to make a difference in people's lives, Nous is the place for you.

Kaluza is seeking a Global Staff Engineer to guide the next wave of energy technology. This position takes the lead on challenging projects and plays a key part in developing new solutions for the energy sector. Role overview The Global Staff Engineer will work on initiatives that drive innovation in how energy is managed and delivered. The role involves solving complex technical problems and collaborating with teams to create impactful products. Locations Bristol, England, United Kingdom Edinburgh, Scotland, United Kingdom London, England, United Kingdom

About The Dot CollectiveWe are a forward-thinking consultancy operating across the UK and EU, built on the principles of engineering excellence and empowering individuals to create impactful change.Our team utilizes contemporary tech stacks and adopts agile scrum methodologies for all our projects.About YouAre you excited about data and its transformative potential? Do you thrive on making a significant impact in a short timeframe? If so, you may be the perfect fit for our team.

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