be proactive, energetic, and understand the importance of making an impact. The Lead FullStack Engineer will be responsible for both frontend and backend development, ensuring seamless integration and high performance of web applications. Responsibilities Lead technical initiatives and projects, ensuring high-quality delivery. Design and implement complex software applications, emphasizing robust and scalable … be collaborating with talented individuals in the industry Join a lively and highly international team Indulge in a challenging and innovative working culture Attractive medical healthcare plan Personal development allowance 2 weeks of work from anywhere per year Regular fun team-building activities Company trip Our Tech Stack Our engineering team leverages a variety of modern More ❯
success – allowing us to evolve underwriting intelligently and unlock massive scale. We're a multi-disciplined team, bringing together expertise in software and data engineering, fullstackdevelopment, platform … operations, algorithm research, and data science. Our squads focus on delivering high-impact features – we favour a highly iterative, analytical approach. We're looking for a Senior Full-stack Engineer to join our Development team. Principal Accountabilities: • Build robust and scalable software for business critical, web-based applications • Build eye-catching, functional, efficient, and … experience with a server-side language, ideally JVM based • Professional experience building web-based single page applications, using React/Typescript or an equivalent • Knowledge of front-end development, able to build rich user interfaces following a responsive design • HTML/CSS experience, including concepts like layout, specificity, cross browser compatibility, and accessibility • Comfortable working with cloud infrastructure More ❯
Milton Keynes, Buckinghamshire, England, United Kingdom Hybrid / WFH Options
Connexa
is looking for a Senior Software Engineer to join a high-performing team delivering AI-powered data platforms to government departments. You'll contribute to a secure full-stack platform enabling sensitive data redaction and digital archiving. This is a chance to build innovative, scalable services that make a real-world impact across central government. Responsibilities … Design and develop secure, scalable fullstack software solutions Work across 30% front-end development (React, TypeScript) and 70% back-end (Java, Spring Boot) Develop APIs, manage relational databases (PostgreSQL/MySQL), and deliver clean DevOps pipelines Collaborate with stakeholders including architects, government … partners, and academia Implement secure coding practices and maintain high standards in testing and documentation What we're looking for: 4+ years of experience in fullstackdevelopment Expertise in Java, Spring Boot, and front-end technologies including React Strong skills in PostgreSQL, API design, and secure software deployment Comfortable working in hybrid environments More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Futuria
intelligent agents collaborate. Key Responsibilities Design, implement, and maintain scalable back-end systems and RESTful APIs using Python (FastAPI/D) Apply domain-driven design and test-driven development to build microservices using agile methodologies, with a focus on reliability Develop, test, and deploy LLM-based applications in secure, production-ready environments Integrate front-end components with AI … applications for performance, scalability, and security Collaborate cross-functionally with engineering, product, and AI teams to deliver high-impact features About You We’re seeking an experienced full-stack engineer with a strong foundation in Python back-end development and the versatility to work across the stack. You’re passionate about building scalable, intelligent … with CI/CD pipelines, Docker, and DevOps workflows Experience designing or integrating authentication and authorisation systems (e.g., OAuth2, JWT) Success Metrics Deploy secure, scalable, and maintainable full-stack systems and LLM applications that deliver measurable business value Maintain low latency, high system uptime, and strong performance across APIs and AI services Drive fast, iterative collaboration More ❯
Full-Stack Engineer – London A high-growth, AI-native enterprise software startup is looking for seasoned Full-Stack Engineers in London to help build and scale their AI-enabled workspace for professional services, investment banking, and asset managers. What you’ll be doing Building and maintaining frontend web applications using React and … you’ll often be in unfamiliar territory, but you’ll have real ownership and visible impact If you’re a pragmatic engineer who enjoys building robust, scalable, full-stack web systems, and you’re excited by working on next-gen enterprise AI products, this could be the right next step. More ❯
Milton Keynes, Buckinghamshire, South East, United Kingdom Hybrid / WFH Options
Rise Technical Recruitment Limited
on-demand creative staffing, cross-channel production management, and automated workflows through their technology platform. In this varied role you will focus on front-end and back-end development, working alongside a team to design, build, test, and deploy web applications. You'll craft user interfaces, handle server-side logic, integrate databases, and collaborate on code reviews to … maintain quality. Troubleshooting user issues and staying on top of the latest web development trends are also key aspects of this position. The ideal candidate will be a well-rounded developer with experience in both front-end and back-end development. They should be proficient in the foundational web languages HTML, CSS, and JavaScript, and have familiarity with … and SQL. This is a fantastic opportunity for an ambitious FullStack Developer that is looking for significant growth potential, progression, and long-term development to join a business at an exciting time of growth. The Role: - Collaborate on design, build, test, and deploy web applications. - Craft user interfaces (front-end). - Handle server More ❯
for storage and content delivery Cypress for end-to-end testing Third party APIs: OpenAI, Stripe, Twilio, Sendgrid, Mailchimp and more Our tech culture We follow an agile development process with fortnightly sprints. We keep meetings to a minimum, but the ones we do have are highly valuable. We strongly believe in ownership and you will be responsible … for taking your features from development through to testing, deployment and design review with end users. We take code quality seriously. We have a preferred code style and we use automated linting, code formatting and other code inspection tools to detect common errors and ensure consistency. We run an extensive suite of unit, integration and end-to-end More ❯
JOB TITLE: Senior FullStack Developer (React, TypeScript, .NET) REPORTS TO: Head of Development JOB PURPOSE As a Senior FullStack Developer, you will play a critical role in designing, developing, and maintaining scalable, secure, and robust web applications. This role involves leveraging your expertise in React, TypeScript, .NET Core … success of key projects, including the development of microservice architectures and integrations with advanced identity management systems. RESPONSIBILITIES Application Development: Develop and maintain full-stack applications using .NET Core, React JS, and TypeScript. Microservices Architecture: Design and implement scalable, distributed systems, focusing on event-driven communication and domain-driven design (DDD). … pipelines to ensure seamless deployment processes. Agile Collaboration: Work collaboratively within an Agile environment to deliver projects on time and meet business goals. Security Best Practices: Implement secure development practices, adhering to SOLID principles and ensuring compliance with software security standards. EXPERIENCE A minimum of five years of professional development experience with .NET Core. Proven front More ❯
slough, south east england, united kingdom Hybrid / WFH Options
SR2 | Socially Responsible Recruitment | Certified B Corporation™
deliver high-value AI applications. Mentor engineers and shape the company’s approach to internal AI enablement. What You’ll Bring 7+ years’ experience in backend or full-stack engineering, ideally within a SaaS or data-driven business. Strong knowledge of LLMs , prompt engineering, and fine-tuning approaches. Hands-on experience with AI/ML pipelines … bike storage and showers available) “Work from Abroad” policy (up to 5 days per year) Pension scheme Collaborative, inclusive, and forward-thinking engineering culture Strong focus on career development and ownership This role is ideal for a senior backend engineer who enjoys blending AI innovation with large-scale systems engineering , and wants to lead from the front as More ❯
brands integrate seamlessly into virtual environments and engage effectively with digital audiences. Your Focus As a Senior Fullstack Engineer, you will be pivotal in both frontend and backend development, crafting responsive, scalable web applications. This role requires strong expertise across the stack — from UI/UX design principles to backend integrations. You will design and implement … driver of innovation across the team. Key Responsibilities Data Pipeline Architecture Design and implement robust, scalable data pipelines. Optimise data flow between databases (MySQL, MongoDB) and applications. Fullstack Development Develop high-quality, scalable applications using Node.js, TypeScript, and React. Collaborate with cross-functional teams to deliver new features and integrations. Cloud and Containerisation Manage and optimise AWS infrastructure … database operations. Code Quality and Review Maintain high standards through code reviews and automated testing. Mentor junior developers and promote a culture of continuous learning. Project Leadership Lead development projects, from planning to delivery. Collaborate with stakeholders to define requirements and timelines. Education Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. Experience More ❯
enterprise-grade platform. Develop clean, efficient, and maintainable code using JavaScript and modern front-end frameworks (e.g., React), while leveraging broader language experience (Java, Python) to support full-stack collaboration. Collaborate with cloud infrastructure teams (AWS, Azure, or GCP) to support performance optimization, environment configuration, and scalable feature delivery in cloud-native applications. Establish and maintain … CI/CD practices (e.g., GitHub Actions, Jenkins), contributing to the automation of testing, builds, and deployments across development environments. Lead and mentor front-end engineers, providing architectural guidance, driving framework adoption, and promoting front-end best practices across the engineering organization. Experience: Minimum 5 years’ experience working as a software developer in a commercial environment. Strong python … programming experience. Experience of managing teams. Ability to effectively share knowledge of development experience and help junior developers continue to improve their development skills over time. Strong foundations in object-oriented programming. Location: London Please note, our client is unable to offer sponsorship for this opportunity. Finally, should you not be contacted within five working days More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
data scale-up. What's in it for you: Competitive salary, to £100k + Significant Equity Hybrid working (3 days London office per week) Vitality Healthcare Continuous career development and learning opportunities Influential role as part of a small, close knit team Complex and interesting work Your role: As a FullStack Engineer you … will take ownership, working on technically challenging Greenfield development projects. You'll be working on complex problems with scalability and reliability in mind, across the fulldevelopment lifecycle from architecture and design through to implementation. There's a range of technology in the stack, you'll have a 50/50 split … between backend and frontend development using TypeScript, Elixir, Elm and AWS amongst others, learning and picking new things up on the job in a collaborative, tech driven environment where you can get stuff done and see the results of your work. Location/WFH: You'll join the team in London three days a week in a hybrid More ❯
new features. Influence architecture and technical strategy. Ensure reliability and performance in production. Lead code reviews, improve processes and mentor juniors. Skills & experience 5+ years’ fullstackdevelopment experience. Strong React and modern JavaScript/TypeScript. Backend API development (Python preferred, Node considered). Cloud deployment (AWS or similar) and database knowledge More ❯
Milton Keynes, Buckinghamshire, England, United Kingdom
interAct Consulting Limited
We're looking for a highly skilled Senior FullStack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining More ❯
Milton Keynes, Buckinghamshire, South East, United Kingdom Hybrid / WFH Options
Interact Consulting Limited
We're looking for a highly skilled Senior FullStack Developer with strong experience in C# .NET and React to join our growing tech team. You'll play a key role in designing, building, and maintaining More ❯
and integrate seamlessly with backend infrastructure. You’ll play a key role in shaping the fund’s research and tooling platform from inception. Responsibilities: Build and maintain full-stack applications and internal tools, with an emphasis on high-performance, data-intensive frontend systems. Collaborate directly with investment professionals, quants, and data scientists to develop responsive dashboards More ❯
slough, south east england, united kingdom Hybrid / WFH Options
SpectrAxe
join SpectrAxe — the first true all-to-all, anonymous FX options trading platform. If you have very strong middle-tier development skills (and/or full-stack experience with React) and are ready to take the next step in your career — where your work has real impact in a fast-moving, startup environment — I … d love to hear from you. Knowledge of FX options is advantageous but not essential . If you bring strong development skills, we’ll support you in learning the financial and trading aspects of the platform. This is a chance to help shape the evolution of a live trading platform used by institutional clients globally. Get in touch More ❯
and built to scale. Hands-On Architecture: Set the technical direction for projects using Python (Flask or Django) and React.js, ensuring high standards of performance and maintainability. Team Development: Coach and support engineers at all experience levels, encouraging professional growth, technical excellence, and collaborative delivery. Engineering Excellence: Champion strong DevOps principles, including CI/CD pipelines, automated testing … Problem-Solving: Communicate intricate architectural decisions in a clear, practical way for both technical and non-technical stakeholders. Skills and Expertise Over 5 years of experience in full-stack software engineering. Expertise in designing and developing scalable web applications and distributed systems. Proficient in software architecture, containerization, and cloud platforms including AWS, Azure, and GCP. Experienced More ❯
Hungerford, Berkshire, England, United Kingdom Hybrid / WFH Options
Noir
to deliver the most awesome social video advertising campaigns on the planet. Due to continued growth and expansion they are seeking several .NET Developer to work on the development of revolutionary web based software applications. We are keen to hear from .NET Developer candidates with a good grasp of technologies that include: .NET, .NET Core/ASP.NET MVC … C# and Azure SQL. Our client will give you the opportunity to work on enterprise level software development projects and training into: .NET 9, Azure, React, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. You will follow the firm's rapid career progression programme. Previous top performers have achieved several promotions (and More ❯
to-end development of Stackspell’s core platform: designing, coding, deploying, and hardening the systems that make AI-native enterprise engineering possible. Your work blends full-stackdevelopment, platform architecture, and applied AI , turning research concepts into production-grade infrastructure. You’ll be hands-on across the stack, from TypeScript More ❯
and observability across the full stack. Work closely with edge-computing and infrastructure teams to deliver robust, real-time features. Take ownership of feature delivery, from development … and testing to debugging and optimisation. Contribute to architectural decisions and help shape the technical direction of the platform. Skills & Experience 3+ years of professional experience building full-stack applications at scale. Strong backend development skills in Python or Go, with experience designing APIs and working with databases such as PostgreSQL and Redis. Proven More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Miryco Consultants Ltd
Experience: Minimum 5 years’ experience working as a software developer in a commercial environment. Strong python programming experience. Experience of managing teams. Ability to effectively share knowledge of development experience and help junior developers continue to improve their development skills over time. Strong foundations in object-oriented programming. Location: London Hybrid work policy: 4/ More ❯
operations Collaborate with business stakeholders including fund accounting, operations, and trading teams Develop scalable, high-performance solutions for financial data processing Participate in code reviews and maintain high development standards Required Skills & Experience Strong proficiency in C# .NET (Core preferred) for backend development Solid experience with React and modern JavaScript frameworks Experience with SQL Server and More ❯
Full-stack Engineer (AI Focused) – London A fast-growing AI-native enterprise software startup is hiring two experienced Full-stack Engineers in London. The company builds a sophisticated AI workspace tailored to financial modelling, private equity, consultancies and asset managers, with live production deployments at leading institutions. What you’ll be doing … engineering best practices What they’re looking for 5+ years of professional software engineering experience Solid, hands-on experience with React/Next.js in production environments Strong backend development skills (Python preferred) and familiarity with databases (relational or NoSQL) Experience with Git, DevOps tooling, containerisation, CI/CD, caching or messaging systems (Redis, task queues, background workers) Previous More ❯
As a Principal/Lead Full-Stack Engineer, you'll thrive if you're hands-on, grounded, and passionate about building with technology. This role is ideal for those looking to have a large impact and huge scope for growth, while still being hands on with technology. We aim to allow growth without becoming “post-technical … programming fundamentals and expertise with at least one programming language (functional or object-oriented) A nuanced and rich understanding of code quality, maintainability and practices like Test Driven Development Experience with one or more source control and build toolchains Working knowledge of CI/CD will be an added advantage Understanding of web APIs, contracts and communication protocols … Understanding of Cloud platforms, infra-automation/DevOps, IaC/GitOps/Containers, design and development of large data platforms A maker’s mindset - To be resourceful and have the ability to do things that have no instructions What will you experience in terms of culture at Sahaj? A culture of trust, respect and transparency Opportunity to collaborate More ❯