101 to 125 of 186 Senior Software Engineer Jobs in London

mark as we scale; and finally, being part of something bigger, through the impact that we make together in our marketplace and communities. What you'll do? As a Senior Software Engineer at Deliveroo, your work contributes to achieving team goals. You will collaborate with your team, lead projects, and also contribute beyond your direct remit. You … conduct engineering interviews, and mentor colleagues to foster their growth. We value experience in some of the following areas, not necessarily all: Writing readable, well-designed, and well-tested software 5+ years of experience in building Android applications at scale Kotlin and/or Java expertise Scaling Android architecture 3+ years using Android development tools like Android Studio Working More ❯

About Faculty At Faculty, we transform organisational performance through safe, impactful and human-centric AI. With more than a decade of experience, we provide over 350 global customers with software, bespoke AI consultancy , and Fellows from our award winning Fellowship programme . Our expert team brings together leaders from across government, academia and global tech giants to solve the … and learn from, some of the brilliant minds who are bringing Frontier AI to the frontlines of the world. About the Role We're looking for a full-stack Senior Software Engineer to work in our Customer Development team on our ground-breaking Frontier platform. Your role will focus on scaling our Decision Intelligence offering - providing AI … capabilities across high-impact decisions. This comes with genuinely interesting technical challenges, with huge space for creativity and influence. We're actively seeking a senior full-stack engineer to deliver our cutting-edge product, Frontier, to new clients. As we continue to expand our platform's reach, you'll have the unique opportunity to build a scalable AI More ❯

Principal/Senior Principal Software Engineer - Email Security The driving force behind our award-winning Email Security Product at Mimecast Dive into the forefront of innovation with our Email Security engineering team. Our pioneering Email Security solution pushes on the boundaries of what's possible, leveraging the latest technologies and tooling in AWS. Why Join Our Team … innovative Email Security team! Our MTA process billions of emails from millions of users on thousands of servers each day!" - Hiring Manager What You'll Do? As Principal/Senior Principal Engineer, you will play a pivotal role in leading the development of our next-generation cloud-based email product. This role involves hands-on engagement throughout the … within the team, fostering collaboration and teamwork. Apply technology trends and industry innovations to our products. Coach and mentor team members in areas of expertise. Experience 10+ years of software development experience. Strong object-oriented programming skills following SOLID principles. Proficient in Java and experienced in building REST/HTTP microservices. Familiarity with Jenkins CI/CD pipelines and More ❯

SENIOR DATA ENGINEER PERMANENT CITY OF LONDON £80,000 As a key member of this team, you will play a pivotal role in designing and implementing data warehousing solutions using Snowflake and AWS. You will help drive the evolution of our data architecture as we move from Redshift to Snowflake. Looking for someone with extensive experience with cloud … as Glue (Spark), Lambda, Step Functions, ECS, Redshift, and SageMaker. Looking for someone with hands-on development Conducting code reviews, mentoring through pair programming. Looking for data engineering and software development Building APIs, integrating with microservices, or contributing to backend systems — not just data pipelines or data modelling. CI/CD and Infrastructure-as-Code Tools like GitHub Actions … services such as Glue, Lambda, S3, Redshift, and Step Functions. Lead the development of robust data pipelines and analytics platforms, ensuring high availability, performance, and maintainability. Demonstrate proficiency in software engineering principles, contributing to the development of reusable libraries, APIs, and infrastructure-as-code components that support the broader data and analytics ecosystem. Contribute to the evolution of the More ❯

SENIOR DATA ENGINEER PERMANENT CITY OF LONDON £80,000 As a key member of this team, you will play a pivotal role in designing and implementing data warehousing solutions using Snowflake and AWS. You will help drive the evolution of our data architecture as we move from Redshift to Snowflake. Looking for someone with extensive experience with cloud … as Glue (Spark), Lambda, Step Functions, ECS, Redshift, and SageMaker. Looking for someone with hands-on development Conducting code reviews, mentoring through pair programming. Looking for data engineering and software development Building APIs, integrating with microservices, or contributing to backend systems — not just data pipelines or data modelling. CI/CD and Infrastructure-as-Code Tools like GitHub Actions … services such as Glue, Lambda, S3, Redshift, and Step Functions. Lead the development of robust data pipelines and analytics platforms, ensuring high availability, performance, and maintainability. Demonstrate proficiency in software engineering principles, contributing to the development of reusable libraries, APIs, and infrastructure-as-code components that support the broader data and analytics ecosystem. Contribute to the evolution of the More ❯

Currencycloud was acquired by Visa in December 2021. Our Senior Java Engineers are responsible for implementing an industry-leading API that has already processed over 50 billion USD of cross-border transactions for over 5 million end users, and is available to our clients 24x7. But we're not stopping there, and our engineers are at the forefront of … applications using Kubernetes and a microservice-led architecture. We are also utilising Kafka for our streaming and PACT for Contract testing. What you'll get to do As a Senior Java Engineer you'll play a key role within your cross functional team, taking responsibility for your services and the technology within them. These roles fit in to … squads who are building out brand new parts to our payments platform, focusing on high availability, cloud native, microservice concepts You'll get to work as the Senior Engineer in your squad, leading on discussions around technical direction and systems design, as well as mentoring more junior members of the team You'll get Clear ownership of your More ❯

business model. The focus is on enabling customers to manage their accounts and subscriptions from a single licence to large enterprises with thousands of users. This requires maintaining a software landscape that owns the identity and access management, subscriptions & billing, conversion, retention optimisation and reconciliation with our financial systems. We support this infrastructure for current and future use cases … through technology. Technologies we work with include: C#, gRPC, Kafka, Kubernetes, Postgres, Cassandra, Gatsby, Keycloak, Typescript What will you be doing at DeepL Based in our London hub, the Senior Staff Engineer will own and drive technical decisions to ensure the scalability, reliability, availability and security of our internal systems and enterprise revenue platforms within Convert And Scale … to meet business revenue growth objectives. By defining a path to implementation, this role should ensure that product decisions and planning are carried out in a scalable manner. The Senior Staff Engineer will challenge implementation, ensure execution alongside management and establish a collaborative path with other tracks in the engineering organisation. Your Responsibilities Facilitate the overall architecture of More ❯

you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. Minimum qualifications: Bachelor's degree or equivalent practical experience. 5 years of experience with software development in C or C programming languages, and with data structures/algorithms. 3 years of experience testing, maintaining, or launching software products, and 1 year of experience … with software design and architecture. 3 years of experience working with embedded operating systems. Preferred qualifications: Master's degree or PhD in Computer Science or a related technical field. 1 year of experience in a technical leadership role. Experience developing accessible technologies. Experience in the development or contribution to graphics drivers, demonstrating a strong understanding of shader compilation processes … shader ecosystems, including high-level languages (e.g., HLSL, GLSL) and intermediate representations (e.g., SPIR-V), relevant to driver development or low-level API programming. About the job Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive More ❯

Senior Engineer - Checkatrade Labs Hybrid role, three days a week at our office in King's Cross Revolutionise the Trades Industry with Cutting-Edge Tech Checkatrade Labs is not your typical engineering team. We are the high-velocity innovation hub within Checkatrade, operating like a startup inside an established, industry-leading company. Our mission? To rapidly experiment, build … and launch game-changing products that digitise the UK trades market. If you're the kind of engineer who thrives in fast-paced environments, loves solving real-world problems with AI, and wants to see the tangible impact of your work in production from day one, this is the team for you. Why Join Checkatrade Labs? Move at Startup … . A data-driven mindset with experience in metrics-based development . A track record of shipping in fast-paced environments. Hands-on experience with API development and modern software engineering practices. Our Tech Stack Frontend : React, TypeScript Backend : Node.js, TypeScript Cloud : Google Cloud Platform (Cloud Run, Cloud Functions, Firestore) AI : Claude/GPT, Clinebot, Devin Tools : Retool for More ❯

in Japan, UK, France, Germany, Brazil, Sweden, China, USA, and South Korea, as well as India. Business Unit Mission: M3 Global Research, an M3 company is looking for a Senior Software Engineer, who can thrive in a fast-paced environment developing complex applications to join our cutting-edge engineering team. Our ideal candidate would demonstrate an understanding … of software development concepts and development lifecycles using Agile methodologies, object-oriented design, and accepted design patterns and practices. You'll be responsible for assisting with system design, coding, improving application performance, collaborating with other developers, and assisting with testing. Job Description Essential Duties and Responsibilities: Design, implement, and deliver highly scalable solutions using modern web technologies and architecture. … Continuously develop, release, monitor, and improve systems and services while fostering a culture of accountability. Follow and actively promote software development processes and best practices within the team. Participate in Agile ceremonies such as daily stand-ups, sprint planning, and retrospectives to ensure alignment and progress tracking. Provide regular status updates to stakeholders, clearly communicating progress, roadblocks, and timelines. More ❯

Senior Software Development Engineer, Alexa Daily Essentials - Food Join a pioneering team dedicated to transforming how people pick, purchase, and prepare food daily. We seek passionate individuals eager to shape the future of customers' cooking journeys in dynamic environments. As part of our innovative team, you will craft immersive cooking experiences across various devices, impacting millions by … requirements, working with teammates to deliver delightful experiences. Maintain a strong sense of ownership, pushing for best practices, operational excellence, and continuous learning. BASIC QUALIFICATIONS 3+ years of professional software development experience (non-internship) 2+ years of experience in system design or architecture (patterns, reliability, scaling) 3+ years supporting Video Games Industry development, release, or Live Ops Experience programming … with at least one software language PREFERRED QUALIFICATIONS 3+ years full software development lifecycle experience, including coding standards, code reviews, source control, build, testing, and operations Bachelor's degree in computer science or equivalent Our inclusive culture empowers Amazonians to deliver the best results. If you need workplace accommodations during the application or onboarding process, please visit this More ❯

Senior Front End D3 Javascript Software Engineer - Holborn Our Client wants to recruit a Senior Front End Software Developer with at least 7 to 10 years expertise of working with D3 React and Javascript. You will be involved with creating sophisticated, robust and easy to use web apps whilst working in a close-knit team More ❯

to own their story and their successes - all our team members are highly valued and important members of our company's journey. Job brief We are looking for a Senior Django Developer who is extremely knowledgeable and a driven individual, you will be a Senior Engineer within a team designing and programming Django-based web applications. You … will be a part of a cross-functional product team that is responsible for the full web application development life cycle, producing scalable software solutions from conception to deployment. As a Python Django Developer you will need to be analytical, and comfortable with a mix of web technologies, development frameworks and third-party libraries. If you have great attention … like to meet you. As well as producing code, you will lead the design and implementation of technical solutions working alongside a product manager, and close to the lead engineer, helping the delivery of production-ready projects by helping fellow developers and QA engineersimplement the right solutions. As Edgefolio expands, you will help build modern and elegant applications that More ❯

a start-up culture where every member acts like an owner and has a direct impact on our offerings. What do we need? We are seeking a Customer-Focused Senior Java Software Engineer to play a critical role in designing, developing, implementing, and documenting large-scale, distributed software applications, systems, and services. You will engineer … like JUnit5, Mockito, Spring Integration is a plus. Excellent communication skills, capable of articulating and delivering solutions that meet functional and non-functional requirements within constraints. Knowledge of modern software engineering patterns, especially in scalable, distributed, and resilient systems. Experience with APIs (OpenAPI preferred), web services, CI/CD pipelines (GitLab preferred), automated testing, Kubernetes, Docker, and cloud-native More ❯

We're hiring 2x Senior Software Engineers to join our Participant squad. In this role, you'll help design, build, and run the systems that support people through their journey with us to becoming what we term a full participant whereby they have completed our Health and Lifestyle questionnaire and undertaken an appointment where we collect physical measurements … graph). Good experience in using modern, agile development practices like code review, TDD, CI/CD and pairing using tools like Git and GitHub. Experience of operationally managing software components once live, including; observability, logging, metrics, error reporting, debugging and live incident management. Experience of working with sensitive personal data. Competitive salary starting from £85,000 Generous Pension More ❯

Hi I'm Abhik , Ashby's Co-Founder and VP of Engineering. We're looking for an ambitious full-stack engineer who is laser-focused on solving customer problems and making the right long-term investments to solve them not only today but in our future features and products. If you've seen this role posted before, it's … and build in an almost-no-meeting culture. While also the product-market fit and scale of a growth-stage startup: thousands of daily users who depend on your software and eagerly await your next feature. We have notable customers like Notion, Linear, Shopify, and Snowflake. Our growth and retention metrics are best-in-class among our peers: we … where we did our best work as ICs - where we had the ownership and agency to impact our users with creative and innovative software. I started my career building software for artists in the Visual Effects industry. It was a formative experience for me as a software engineer because success relied on my ability to be a More ❯

We're hiring 2x Senior Software Engineers to join our Participant squad. In this role, you'll help design, build, and run the systems that support people through their journey with us to becoming what we term a full participant whereby they have completed our Health and Lifestyle questionnaire and undertaken an appointment where we collect physical measurements … graph). Good experience in using modern, agile development practices like code review, TDD, CI/CD and pairing using tools like Git and GitHub. Experience of operationally managing software components once live, including; observability, logging, metrics, error reporting, debugging and live incident management. Experience of working with sensitive personal data. Competitive salary starting from £85,000 Generous Pension More ❯

Job Description How You'll Make an Impact We're looking for a Full-stack Software Engineer to join our London team as part of the Experiences Squad - we want someone who thrives in a fast-paced environment, someone who wants to make a positive impact to their environment and someone with a mentality of self-growth and … a weekly basis; fostering a continuous delivery mentality, paired with CI systems, enables us to release new features to customers regularly. This role will report to the Director of Software Engineering and you will partner with other tech squads and the commercial functions globally. This is a hybrid role requiring 2-3 days per week in our London office. … What You'll Achieve As an engineer in the Experiences Squad, you will bring a first-class UX to our Accelerate Conversion Platform increasing Accelerate's reach. The Experiences Squad's responsibility spans across several features and state-of-the-art codebases such as our Platform authentication, Accelerate Experience Builder and Renderer. Your code will be used by thousands More ❯

We are seeking a talented and motivated Software Engineer to join our dynamic team. In this role, you will design, develop, and maintain high-quality software solutions that meet the needs of our business and customers. You will work collaboratively with cross-functional teams, employing the latest technologies to deliver scalable and efficient systems. Qualification: B.E/… B.Tech/MSc Experience: 3-5 Years Job Responsibilities Design, develop, test, and maintain software applications and systems. Write clean, efficient, and reusable code in Java, Spring Boot. Implement APIs and integrate third-party libraries or tools Develop scalable, secure, and high-performing solutions to meet project requirements. Participating in code reviews Skills Required: Having Experience in Angular, React More ❯

stay ahead of the challenges we are likely to encounter in 6-12 months' time. What we're looking for: At least seven (7) years of experience as a software engineer, at least 3 on the senior/lead level. You have experience in a high-performing engineering team that is operating at scale. This could come More ❯

the-art. We are a venture backed company founded by professionals with experience spanning machine learning, trading, and quantitative research. The Role We're looking for a data-savvy software engineer who thrives on solving new and unexpected challenges - building bespoke software, APIs, data pipelines, and platform components that bring AI capabilities to life. On a practical … depend on ML models, including deployment or inference tooling (e.g. model serving, feature stores) Think in terms of use cases and outcomes, not just infrastructure and moving data Strong software engineering fundamentals, with deep knowledge of algorithms, data structures, and system design Nice to Have Built tools or interfaces for internal teams (e.g. dashboards, annotation tools, developer APIs) Experience More ❯

like Accel , First Round , & Point Nine . Welcome to Spend Control 2.0 - built for tougher times. What we're looking for We're looking for an exceptional, product-minded software engineer to join our engineering team & help scale Omnea with us. Our team will grow from low double-digit to 200+ enterprise customers and through 10x revenue growth … m ARR/$8-$500m valuation, and from pre-seed to Series C (Sequoia, Accel, etc.). Now we're ready to scale. We are looking for the best software engineers out there to help make Omnea one of Europe's leading tech businesses: come build with us! We're hiring at both the Level 3 (Senior) and … Lead) level. We care more about skills than years of experience, but for your calibration, typically we'd expect candidates at this level to have around 5+ years of software engineering experience. You should be prepared to undertake our pair-programming stage of the interview process in Javascript or Typescript and be assessed on that basis as if it More ❯

distributed-first company. To help our teams work together effectively, this role is fully remote but requires you to be located in the UK. We're looking for a Senior Backend Software Engineer to join our team, focused on delivering creative improvements for our engineering teams. Your future team To become a 100-year company, we need … depth of knowledge from your current language to excel as a Java developer Mentor junior members of the team Your background: 7+ years experience building and developing backend applications. Senior-level experience with one or more prominent languages such as Java, Python, Kotlin, Go, or Scala is nice to have. Understanding of SaaS, PaaS, IaaS industry with hands-on … or NoSQL like DynamoDB or Cassandra). Experience crafting and implementing well-tested, highly scalable and performant micro-services and/or other distributed systems. Practical knowledge of agile software development methodologies (e.g., XP, scrum). Knowledge to evaluate trade-offs between correctness, robustness, performance, space and time. Practice in mentoring other engineers and influencing decision makers throughout the More ❯

leading tech companies- including Cleo, BeautyPie, TooGoodToGo and Omnipresent- to revolutionise how their teams understand and work with data. What you'll do We're looking for an exceptional software engineer to help shape Count's next stage of growth. You'll own technical projects at the intersection of software development, data engineering, analytics and DevOps infrastructure … to drive outsized outcomes across the business. We'd love to hear from you if you: Have at least 4 years of professional experience as a backend/platform engineer Have deep expertise in Python and building reliable data-focused backend services Have hands-on experience with cloud infrastructure (GCP/AWS/Azure), infrastructure-as-code (Terraform), containerisation More ❯

share camera feeds and tips. By providing a comprehensive, real-time view of unfolding situations, Axon Fusus aids in faster decision-making, and improved public safety outcomes As a senior engineer on the Axon Alerts team, you'll be directly responsible for the design, development and delivery of the Axon Alerts platform. The platform ensures the right people … the heart of our promise to keep our systems running 99.999%, even when bad days happen and the system unusually spikes. What You'll Do Location: London Reports to: Senior Engineering Manager Building services that adhere to our high bar on availability and latency in this mission-critical space Set a high technical bar for the team through code … from reoccurring. Working with the latest cloud based and open source technologies What You Bring Bachelor's Degree in Computer Science, Engineering, or related field 8+ years of professional software development experience Experience designing and delivering highly-available, scalable cloud-based systems Backend service experience in multiple, managed languages such as Java, Scala, Go, C#, or similar Experience working More ❯