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Top Full Stack Developer Jobs in London

393+ Job Results
15 Days Ago
London, UK
Hybrid
477 Employees
7+ Years of Experience
477 Employees
7+ Years of Experience
eCommerce • Information Technology • Retail
Senior Software Engineer role at Buyagift and Red Letter Days focusing on front-end development for search and recommendations. Responsibilities include leading full-stack development, enhancing user journeys, and collaborating with the team and stakeholders.
11 Days Ago
London, UK
Remote
25 Employees
5-7 Years of Experience
25 Employees
5-7 Years of Experience
Events • Payments • Financial Services
VALR is seeking seasoned backend software engineers with experience in building fast, accurate, scalable, and secure applications. Required skills include Kotlin, Java, REST API, Websockets, version control, containerisation, CI/CD, Google Cloud Platform, AWS, troubleshooting tools, cryptocurrencies, and alternative financial systems.
24 Days Ago
London, UK
Remote
592 Employees
5-7 Years of Experience
592 Employees
5-7 Years of Experience
Artificial Intelligence • Machine Learning • Software • Transportation • Business Intelligence • Consulting
Seeking a Senior Fullstack Engineer to join a startup in Amsterdam, developing a complex line-of-business application for the airline industry with multidimensional analysis, machine-learning forecasts, and analyst workflows. Responsibilities include shipping new features, developing scalable solutions, and collaborating with team members. Qualifications include a degree in Computer Science or related field, 5+ years of relevant experience, expertise in software design, Python, JavaScript, REST API, SQL, and strong communication skills. Preferred qualifications include experience with data pipelines, Docker, Kubernetes, CI/CD, and Google Cloud Platform. Offering regular employment contract, equity, flexible hours, and other amenities.
Top Benefits:
401-K
401-K Matching
Company Equity
+29 More
7 Days Ago
London, UK
Remote
702 Employees
3-5 Years of Experience
702 Employees
3-5 Years of Experience
Food
Develop backend applications to support and empower restaurant partners in managing their daily operations and attracting more customers. Collaborate with cross-functional teams to execute product roadmap and shape product vision.
9 Days Ago
London, UK
Remote
140 Employees
7+ Years of Experience
140 Employees
7+ Years of Experience
Cloud • Machine Learning • Other • Software
Seeking a skilled Senior Backend Engineer (Golang) to work on high-traffic and high-performance applications, focusing on Chat and Video & Audio API. Responsibilities include adding new features, optimizing API service performance, writing clean code, and engaging with customers. Requires 5+ years of backend development experience, knowledge of relational databases, building HTTP APIs, managing projects, and proficiency in Go language is preferred. Bonus points for experience with JavaScript, React/Angular, message queues, automated testing, REST APIs, cloud platforms, and a Bachelor's degree in Computer Science or related field.
Top Benefits:
401-K
401-K Matching
Commuter Benefits
+35 More
7 Days Ago
London, UK
314 Employees
3-5 Years of Experience
314 Employees
3-5 Years of Experience
Financial Services
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.
7 Days Ago
London, UK
Remote
28 Employees
3-5 Years of Experience
28 Employees
3-5 Years of Experience
Software
Join the team working on Camo, a video solution app with AI/ML capabilities. Responsibilities include building robust functionality in C# desktop apps, enhancing user experiences, contributing to product vision, and evolving tooling and architecture. Role is remote in UK hours (GMT) at a values-led indie business. Offers autonomy, growth opportunities, and competitive benefits.
11 Days Ago
London, UK
652 Employees
7+ Years of Experience
652 Employees
7+ Years of Experience
Consumer Web • Marketing Tech
As a Senior Software Engineer at Uswitch, you will be responsible for supporting and improving the team's delivery and technical expertise, collaborating with cross-functional disciplines, having autonomy over technical decisions, utilizing data-driven approaches, enhancing engineering culture, and sharing knowledge in a continuous learning environment. Responsibilities include feature development, defining team processes, developing domain models, maintaining the full stack, building CI/CD pipelines, and optimizing UX and performance across devices.
6 Days Ago
London, UK
Remote
2,135 Employees
5-7 Years of Experience
2,135 Employees
5-7 Years of Experience
Information Technology • Consulting
Senior Full Stack Engineer (.NET+Blazor) needed to develop a digital solution for managing metal sheets and storage systems in the warehousing industry. Responsibilities include technical planning, high-quality product delivery, and collaboration with the product manager. Strong expertise in C#, .NET, Blazor, and various technologies is required. Flexible working format and competitive salary offered with opportunities for professional growth and development.
12 Days Ago
London, UK
Remote
58 Employees
5-7 Years of Experience
58 Employees
5-7 Years of Experience
Financial Services
Looking for a Tech Lead with 5+ years of Ruby on Rails experience to join our fintech startup. Responsibilities include developing features, championing best practices, resolving performance issues, and shaping development processes.
13 Days Ago
London, UK
50 Employees
7+ Years of Experience
50 Employees
7+ Years of Experience
Artificial Intelligence • Marketing Tech • Software • Generative AI
Backend Engineer role at Writer, working on enterprise generative AI projects. Responsibilities include designing, developing, and maintaining backend systems using Scala, integrating AI models, optimizing performance, and collaborating with cross-functional teams. Requires a Bachelor's or Master's degree in Computer Science, 5+ years of experience in functional programming and Scala, and familiarity with cloud platforms and containerization technologies.
Top Benefits:
401-K Matching
Commuter Benefits
Company Equity
+10 More
8 Days Ago
London, UK
1,600 Employees
3-5 Years of Experience
1,600 Employees
3-5 Years of Experience
Fintech
Optiver is seeking a Software Engineer to join their Novel Trading Opportunities team in London. The role involves designing and building software solutions for trading new products in innovative ways, collaborating with a multidisciplinary team, and leading global technical initiatives in a start-up dynamic. Required skills include C#, C++, C, and Python.
Top Benefits:
401-K
401-K Matching
Company Outings
+23 More
4 Days Ago
London, UK
Remote
95 Employees
7+ Years of Experience
95 Employees
7+ Years of Experience
Fintech • Financial Services
Seeking a talented and passionate Senior Backend Game Developer to join our core team. Responsible for designing and implementing scalable game backend services, collaborating with cross-functional teams, and enhancing player engagement through new features. Fully remote position with benefits including holidays, sick days, training budget, and work equipment allowance.
8 Days Ago
London, UK
880 Employees
5-7 Years of Experience
880 Employees
5-7 Years of Experience
Cloud • Software
Senior Software Engineer role at Canonical focusing on owning the design, delivery, and support of features in a highly concurrent, distributed system using Go. Responsibilities include coaching, team development, collaboration, and contributing to building a first-class engineering team.
Top Benefits:
401-K
Dental Insurance
Health Insurance
+3 More
9 Days Ago
London, UK
Remote
700 Employees
3-5 Years of Experience
700 Employees
3-5 Years of Experience
Natural Language Processing • Software
Senior Back-end Engineer role at Algolia, contributing to the design, development, and operation of the Search engine system at scale. Responsible for system quality, troubleshooting, and operations. Requires expertise in C++, Golang, complex algorithms, distributed backends, and major component design.
Top Benefits:
401-K
401-K Matching
Company Equity
+15 More
12 Days Ago
London, UK
Remote
94 Employees
5-7 Years of Experience
94 Employees
5-7 Years of Experience
Software
Seeking a highly motivated Backend Engineer (API) to enhance the technology framework and drive change. The role entails system evaluation, architectural enhancement, and integration of new technologies with existing systems. Requires proficiency in PHP and JavaScript/TypeScript.
7 Days Ago
London, UK
Remote
700 Employees
7+ Years of Experience
700 Employees
7+ Years of Experience
Natural Language Processing • Software
Senior Software Engineer at Algolia focusing on building and maintaining the Core Search Engine using C++ and Golang. Responsibilities include system design, development, and operation at scale, troubleshooting high-impact issues, and on-call participation. Preferred skills include experience in distributed systems, Kubernetes, information retrieval, and AI models.
Top Benefits:
401-K
401-K Matching
Company Equity
+15 More
9 Days Ago
London, UK
Remote
451 Employees
3-5 Years of Experience
451 Employees
3-5 Years of Experience
Consulting
Build web applications 'client side', translate company and customer needs into functional and appealing interactive applications.
9 Days Ago
London, UK
Remote
451 Employees
3-5 Years of Experience
451 Employees
3-5 Years of Experience
Consulting
Optimize web-based application performance by collaborating with front-end developers, designing back-end components, and integrating data storage solutions.
6 Days Ago
London, UK
491 Employees
3-5 Years of Experience
491 Employees
3-5 Years of Experience
Financial Services
This developer role is within a small, dynamic team working on the NIRO Portfolio Management System using C#, Typescript, and Angular. The candidate should have strong knowledge in at least one asset class and experience with front-end development using Angular.
5 Days Ago
London, UK
Remote
578,950 Employees
5-7 Years of Experience
578,950 Employees
5-7 Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
Join the Associate TV team at Walmart Global Tech to deliver consumer-grade products and services, increase device visibility and security through automation and predictive analytics, and collaborate with various teams to drive development efforts. Requires 5 years of experience in React, Node JS, relational databases, and automated testing, as well as skills in PowerShell, Linux shell scripting, and proven leadership abilities.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
13 Days Ago
London, UK
Remote
73 Employees
7+ Years of Experience
73 Employees
7+ Years of Experience
Machine Learning • Software
Seeking a Staff Backend Software Engineer to set technical direction and develop a distributed system at scale effectively in a company aiming to become an MLOps standard. Responsibilities include leading building larger strategic features, defining architecture, driving technical initiatives, and more. Requires 10+ years of experience in Software Development of distributed systems, proficiency in Java, knowledge of Kubernetes and containerization, and expertise in data storage technologies.
7 Days Ago
London, UK
Remote
48 Employees
5-7 Years of Experience
48 Employees
5-7 Years of Experience
Blockchain
As a Senior Software Engineer at bloXroute, you will be responsible for optimizing the performance of the Solana blockchain platform and contributing to the enhancement of products and services. Key responsibilities include architecting, developing, and maintaining the Solana blockchain platform, innovating solutions for the blockchain distribution network, and staying updated with the latest blockchain technology developments.
14 Days Ago
London, UK
Remote
132 Employees
3-5 Years of Experience
132 Employees
3-5 Years of Experience
Fintech • Information Technology
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.
13 Days Ago
London, UK
Remote
578,950 Employees
3-5 Years of Experience
578,950 Employees
3-5 Years of Experience
Big Data • Cloud • Logistics • Machine Learning • Retail
The Senior Software Engineer will be responsible for full stack development using technologies like React JS, React Native, Java, Spring, Kubernetes, NoSQL, and Kafka. They will work on building tools to enable Associates to serve customers at checkout lanes, participate in design and code reviews, and ensure observability and measurement in projects. The role requires 4+ years of full stack development experience, proficiency in back-end and front-end technologies, experience with micro-services architecture and distributed systems, and strong collaboration skills.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+21 More
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