Senior Full Stack Developer | React | Angular | Vue (contract)

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