Database Management: Design, optimize, and maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full-Stack Development: Develop responsive and performant front-end applications using ReactJS, focusing on UX/UI best practices. Integration & Automation: Architect and maintain integrations with external APIs such as AWS, Stripe, Zendesk, Twilio, Google Analytics, Google Ads, HMRC, etc... Code Quality … in Computer Science or related field from a Tier 1 university. Experience: Minimum of 4 years of full-time professional experience in software development, with strong expertise in TypeScript, ReactJS, and Next.JS. Solid experience in building RESTful APIs Leadership: Proven track record of leading development teams and managing large-scale projects. Database Expertise: In-depth experience with PostgreSQL/SQL More ❯
London, England, United Kingdom Hybrid / WFH Options
Jigsaw
improve our customers' workflows and satisfaction. What We're Looking For: Expert-level Full-Stack Development: Strong experience with C#, ASP.NET Core, TypeScript, and Vue.js (or equivalent experience with React/Angular). You’re comfortable with component-based architecture, modern JavaScript, and building scalable, maintainable solutions. Deep Architectural Knowledge: Proven experience in full-stack development with a focus on … United Kingdom 3 weeks ago London, England, United Kingdom 2 months ago London, England, United Kingdom 2 weeks ago London, England, United Kingdom 1 month ago FullStack Software Engineer (React/Node) London, England, United Kingdom 1 month ago London, England, United Kingdom 1 month ago London, England, United Kingdom 2 days ago Sheffield, England, United Kingdom 1 day ago More ❯
City of London, England, United Kingdom Hybrid / WFH Options
ACLED
modern and competitive. Skills & Experience Required: Degree in Computer Science, Software Engineering, or related field. 3-5 years professional experience as a Full Stack Developer. Proficiency in PHP, JavaScript, React, NEXT.js, HTML/CSS, responsive UI frameworks. Experience building scalable REST APIs using Python, Java, Golang, PHP, Node.js, etc. Knowledge of web performance tools and SEO strategies. Understanding of authentication More ❯
and fluent English Nice to Have Experience with CI/CD pipelines and DevOps practices Familiarity with containerization (Docker/Kubernetes) Exposure to frontend or full-stack work (e.g., React, Angular) Experience with message queues or event-driven architectures Join Us: This is a unique opportunity to join a dynamic team fully integrated with our startup partner and work on More ❯
modern engineering tools (Git, CI/CD), cloud platforms (Azure, AWS), and Infrastructure as Code (Terraform, Pulumi). Familiarity with various frameworks across front-end and back-end stacks (React, Angular, Vue, Blazor, FastAPI, Spring Boot, Django, .NET). Experience designing and justifying architectural choices. Ability to communicate complex concepts clearly to both technical and non-technical audiences. Experience with More ❯
security, quality, and stability. Work with a variety of relational and NoSQL databases (SQL, Postgres, DB2, MongoDB), operating systems (Linux, Windows, iOS, Android), and modern UI frameworks (Backbone.js, AngularJS, React.js, Ember.js, Bootstrap, and JQuery). Work across the entire system architecture, from backend to front end, to design, develop, and support high quality and scalable products. Help maintain and improve More ❯
stakeholders (e.g., clients, users, product, platform, application owners). Design, develop, and maintain software applications using Python and SQL. Design and implement user interfaces using modern JS frameworks (e.g. React, Angular, or Vue.js). Build and maintain ETL/ELT pipelines and data models within data warehouses, an example pipeline being ingesting data from multiple Cyber Intelligence vendors. Architect and … transformation within data warehouses, knowledge of tools such as DBT is desired. Experience with front-end technologies, such as HTML5, CSS3, and JavaScript. Knowledge of JavaScript frameworks, such as React (preferred), Angular, and Vue.js. Knowledge of CSS frameworks, such as Bootstrap, Material UI, and Tailwind CSS. Strong understanding of API protocols and standards, including REST and GraphQL. Hands-on experience More ❯
Social network you want to login/join with: Senior Full-stack Software Engineer (Go & React), London col-narrow-left Client: Opinov8 Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 478c2d3aa8de Job Views: 6 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: WE ARE Opinov8 is a technology service provider … years of software development- 3+ years of cloud-native experience, , Kubernetes, Docker, etc. Thorough understanding of k8s; networking, configuration, architecture, etc.- Basic understanding of front-end frameworks such as React/Redux, , etc.- Experience with API definitions/implementation - OpenAPI/GraphQL/etc.- Extensive experience in at least one server-side language such as Go, Java, Python, etc.- Experience More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Senior C# Developer/Engineer (C# .Net Core React) London/WFH to £80k Are you a skilled C# Developer looking to work on complex and interesting systems with continual learning and self development opportunities You could be progressing your career at in a senior, hands-on role at a successful and scaling Retail FX Brokerage working on Greenfield systems. … a Senior C# Developer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure across the full technology stack in a modern development environment with …/Kubernetes, EKS You have a good understanding of CQRS and event driven architectures Ideally you will also have some front end development experience with JavaScript/TypeScript/React.js or Angular You have strong analytical and problem solving skills You're collaborative with excellent communication skills What's in it for you: As a Senior C# Developer/Engineer More ❯
London, England, United Kingdom Hybrid / WFH Options
Mountain Warehouse
ways that we can be even better. The work is a mixture of green-field and legacy work (much like any other mature organisation) mostly using C#, SQL Server, React & TypeScript, with a combination of monolithic and microservices architectures. Key Responsibilities We are looking for an experienced developer to join our Buying & Merchandising Dev team which is responsible for the … To Meet Someone Who Is Minimum 4 years of C#, SQL, JavaScript/TypeScript to an advanced level in a commercial environment. Minimum 2 Year’s Commercial Experience Of React Produces initial results rapidly and iterate based upon feedback. Knowledge of microservice design principles – preferably with commercial experience. Effective communicator. Makes pragmatic implementation decisions and can fail fast if an … Kingdom 1 month ago London, England, United Kingdom 2 months ago Greater London, England, United Kingdom 3 weeks ago London, England, United Kingdom 1 month ago Full Stack Engineer (React, NodeJS, GO & AWS) London, England, United Kingdom 2 months ago London, England, United Kingdom 3 months ago London, England, United Kingdom 2 weeks ago London, England, United Kingdom 4 months More ❯
of hands-on software engineering experience. Proven expertise in C# (.NET Core) and Python for backend services. Strong knowledge of mobile development – native (Swift/Kotlin) or cross-platform (React Native, Flutter). Solid understanding of cloud services and architectures (Azure, AWS, or GCP). Experience with system design, distributed systems, and modern architectural patterns (e.g., microservices, event-driven architecture … . Deep understanding of RESTful APIs, authentication protocols (OAuth2, JWT), and backend integration. Familiarity with front-end technologies (e.g., React, Angular, or Blazor) is a plus. Proficiency in Git, CI/CD tools, containerization (Docker, Kubernetes), and DevOps principles. Excellent problem-solving skills, with the ability to lead technical discussions and make informed decisions. Strong communication and leadership skills. Apply More ❯
London, England, United Kingdom Hybrid / WFH Options
Resident Advisor Ltd
web development team. We are currently around ten developers, including our dedicated apps team. Our main tech stack consists of a next.js frontend, and a GraphQL backend. We use React on the frontend and a mixture of node and C# on the backend. We also use elasticsearch, redis and deploy to Kubernetes in the cloud, using managed services and infrastructure … websites in the industry, then we’d like to hear from you. Required Skills C1 English or equivalent Experience writing production-grade backend systems Experience in writing production-grade React applications Experience writing performant SQL Modern JavaScript ES2018+ TDD and all aspects of testing from unit through to integration Familiarity with CI/CD pipelines Mobile-first web development API … design and consumption Agile practices Desirable Skills Experience in a strongly-typed object oriented language such as C# or Java Typescript NestJS .NET Core GraphQL Elasticsearch React hooks React Native Server-side rendering Styled Components Testing react apps using testing-library and jest Testing .Net using NUnit, XUnit and utilising Moq Docker and kubernetes AWS and terraform Experience running high More ❯
enjoying what the world has to offer. ABOUT THE ROLE Tech Stack Backend: AWS Serverless Service, including Lambda, API Gateway, DynamoDB, S3, SNS, SQS, EventBridge, Kinesis, Node.js, YAML Frontend: React/Next.js Programming: TypeScript; JavaScript, Python Infrastructure: Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you … product vision. Actively participate in product planning meetings and provide technical input to guide the team's priorities. Design, develop, and maintain full-stack applications using Node.js, AWS Lambda, React with Next.js, TypeScript, and Terraform. Write clean, efficient, and well-tested code that adheres to best practices and coding standards. Ensure code quality, organisation, and automation. Optimise applications for maximum … Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend development. Proficiency in TypeScript and experience with infrastructure as code using Terraform. Understanding of RESTful APIs and web application architecture. Ability to write clean, readable, and More ❯
London, England, United Kingdom Hybrid / WFH Options
The Perl Programming Language
capable of learning the rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling • Natural language processing … capable of learning the rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling • Natural language processing More ❯
London, England, United Kingdom Hybrid / WFH Options
Lloyds Banking Group
real difference. WHAT YOU’LL BE DOING As a Senior Software Engineer, you’ll: Design, develop, test, and deploy modular applications, APIs, and services using Java, Spring Boot, TypeScript, React, or similar technologies. Build containerized applications using Docker and deploy them to Kubernetes environments. Apply Domain-Driven Design (DDD) principles and Test-Driven Development (TDD) practices. Collaborate with cross-functional … great software. You’ll need: Strong hands-on experience in both frontend and backend development Backend: Proficiency in Java (17+) or Node or Spring Boot, and RESTful APIs. Frontend: React, TypeScript, HTML5, CSS3, and other modern frontend frameworks. DevOps: Familiarity with CI/CD tools (GitHub, Jenkins, Harness), Docker, Kubernetes, and cloud platforms (GCP preferred). Automation: Experience with automated More ❯
based at Old Street in the heart of “tech city” and get thoroughly stuck in with the brilliant community around us. We run several meetups including the hugely popular React London, invite other groups to host their events in our office such as Lua London and Ladies Who Code and speak at events like Digital Shoreditch and LNUG. The Role … in client teams where necessary Your experience It’d be great if you have experience with: Frontend web technologies (e.g. Javascript, Typescript, CSS, HTML, etc.) Frontend web frameworks (e.g. React, VueJS, etc.) Backend technologies (e.g. Node.js, Go, Rust, etc.) Relational and Non-relational databases (e.g. ElasticSearch, Redis, PostgreSQL, etc.) System architecture approaches (e.g. microservices, event sourcing, serverless, CQRS...) Virtualisation and More ❯
and maintain full-stack applications deployed on AWS, ensuring high performance and reliability. Design and implement APIs and microservices using Node.js, Python, or Java. Develop responsive user interfaces with React.js, Angular, or Vue.js, following best practices for performance and accessibility. Utilise AWS services such as Lambda, API Gateway, S3, DynamoDB, and RDS to enhance application functionality. Implement security best practices … documentation. Preferred Education None Required Technical And Professional Expertise Experience in full-stack development, including cloud-based applications. Proficiency in JavaScript/TypeScript and modern frontend frameworks such as React.js, Angular, or Vue.js. Hands-on experience with backend development using Node.js, Python, or Java. Familiarity with AWS services such as Lambda, API Gateway, DynamoDB, RDS, and IAM. Experience working with More ❯
London, England, United Kingdom Hybrid / WFH Options
M3
Qualifications Knowledge and Skills: Strong proficiency in JavaScript (ES6+), with a deep understanding of core language concepts and best practices. Expertise in modern frontend frameworks with advanced experience in React, Next.js, and Angular. Deep understanding of TypeScript for building robust and maintainable applications. Solid grasp of responsive and mobile-first design principles; experience with CSS3, HTML5 and modern styling solutions. … is a plus. Education And Training Required Bachelor’s Preferred or relevant years of experience Minimum Experience: 5+ years of professional experience in frontend development, with strong expertise in React and TypeScript. Additional Information Company Disclaimer: This job description does not represent an all-exhaustive list of all functions and the employee may be required to perform additional duties as More ❯
London, England, United Kingdom Hybrid / WFH Options
Olo
ll Expect From You 5+ years of experience in software engineering, including excellent knowledge of C#, .NET and object oriented concepts 3+ years of experience developing and maintaining scalable React applications using modern JavaScript frameworks and libraries (TypeScript preferred) Hands on experience with RDBMS development Collaboration with UX/UI designers to implement responsive and user-friendly interfaces Adept at … at Olo by 2x Get notified about new Senior Software Engineer jobs in United Kingdom . Manchester, England, United Kingdom 3 weeks ago Software Engineering Lead (Flutter) - Catalyst Senior React Native Engineer - Outside of IR-35 Engineering Manager (Remote - Multiple locations) Manchester, England, United Kingdom 3 days ago Newcastle Upon Tyne, England, United Kingdom 3 days ago London, England, United More ❯
SQL (DB2/SQL Server/Postgres preferred). Demonstrate excellent use of Design Patterns/Micro Services/RESTful APIs Basic capability in UI Development using advanced JavaScript (React and Node.js preferred) HTML, CSS Working in a Technical Agile environment (e.g. Build tools, Static/Dynamic code analysis, CI/CD e.g. Jenkins/TeamCity) Company Information Handelsbanken is … month ago London, England, United Kingdom 5 months ago London, England, United Kingdom 1 month ago London, England, United Kingdom 1 week ago Software Engineer (Typescript, Node.js, React) We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI. #J-18808-Ljbffr More ❯
London, England, United Kingdom Hybrid / WFH Options
Goodstack
if you have: Required experience : 5+ years of experience designing and building APIs, particularly on top of databases (we use Postgres). Experience designing and building web apps using React (essential for Full Stack candidates). Experience designing and developing secure, scalable, resilient, and observable systems. Good knowledge of Node.js and TypeScript (and React if you are applying for a More ❯
to improve release velocity and confidence. Technical Skills Required: Proficiency in modern programming languages and frameworks (e.g. JavaScript/TypeScript, Python, .NET, Node.js). Experience with frontend development (e.g. React, Angular, Hugo). Strong understanding of backend systems, API design, and system integration. Comfortable working with cloud platforms such as Microsoft Azure or AWS. Familiarity with databases (SQL/NoSQL More ❯
shape solutions Contribute to agile best practices Key Requirements: 5+ years of core Java development experience Expertise in microservices architectures (Spring Boot, Docker, Kubernetes) Strong experience with GUI technologies (React, TypeScript, HTML5) Experience in full SDLC (Git, Maven, Bamboo) Strong understanding of modern software design & architecture A proactive mindset and a collaborative approach Up to £110,000 base salary Private More ❯
applications using an object-oriented language like Ruby, being familiar with Ruby on Rails, JavaScript, HTML and CSS Experience working with Single Page Applications and Javascript frameworks such as React, Angular, Vue.js or (preferably) Ember.js Desirable: A robust knowledge of building and working with RESTful APIs Desirable: Experience integrating with internal and third party services Desirable: A knowledge of cloud More ❯