Senior Full Stack Developer | React | Angular | Vue (contract)
Summary
Deloitte is hiring a contract Senior Full Stack Developer in London (4-5 days onsite, inside IR35, until end of 2026) to design, build, and deliver scalable full-stack applications. Day to day involves front-end work with React/Angular/Vue, building REST/GraphQL APIs and microservices, deploying on cloud platforms like Azure/AWS, using CI/CD pipelines, and mentoring junior developers.
Senior Full Stack Developer |React | Angular | Vue (contract)
London, United Kingdom | Posted on 01/09/2026
Contract Role: Senior Full StackDeveloper | React | Angular | Vue
Contract Location: London 4-5 days onsite each week
Contract Start: Starting ASAP (inside IR35)
Contract duration: End of 2026
Deloitte are looking for a highly skilled Senior Full StackDeveloper to join our team and lead the design,development, and delivery of scalable,high-performance applications. The ideal candidate has strongexpertise in both front-end and back-end technologies,experience with cloud platforms, and the ability to mentor junior developerswhile driving architectural and strategic decisions.
Key Responsibilities
Technical Delivery
- Design, develop, and maintain full-stackapplications using modern frameworks and technologies.
- Build scalable APIs, microservices, andintegrations.
- Develop high-quality, responsive UI components withan eye for performance and usability.
- Optimize system performance, reliability,scalability.
- Contribute to application architecture decisions andlong-term technology strategy.
- Create technical designs, sequence diagrams, andsolution documentation.
- Utilize CI/CD pipelines for end-to-end automation.
- Work with cloud platforms (e.g., Azure/AWS/GCP) forapplication hosting and deployments.
- Manage application monitoring, logging, andperformance tuning.
- Work closely with Product Owners, Designers, andcross-functional teams to deliver features.
- Perform code reviews and provide technicalmentorship to junior and mid-level developers.
- Participate in sprint planning, grooming,estimation, and Agile ceremonies.
Required Skills & Experience
Technical Expertise
- Strong proficiency in front-end technologies:
- React / Angular / Vue
- Solid experience in back-end technologies:
- REST APIs, GraphQL
- Strong understanding of databases:
- Hands-on experience with cloud services, ideallyAzure or AWS.
- Experience with CI/CD pipelines (GitHub Actions,Azure DevOps, Jenkins, etc.).
- Containerization & orchestration (Docker,Kubernetes) is a plus
Soft Skills
- Strong problem-solving abilities and analyticalthinking.
- Excellent communication and stakeholder engagementskills.
- Ability to work independently and lead technicalinitiatives.
- Experience working in Agile/Scrum teams.
Preferred Qualifications
- Extensive experience of professional full-stackdevelopment experience.
- Experience with microservices, event-drivenarchitectures, or serverless technologies.
- Exposure to security practices, OAuth2, SSO, andsecure coding principles.
- Prior experience mentoring teams or leadingdevelopment streams| DataBricks, PowerBI, Python