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

Deloitte - Recruitment; Greater London; On-site; GBP 111,000 - 166,000; Full time

Job summary

Deloitte is seeking a Senior Full Stack Developer to lead the design, development, and delivery of scalable, high-performance applications. You will work across front-end and back-end technologies, including React, Angular, and Vue, with cloud hosting on Azure or AWS.

The role is based in London and requires 4–5 days onsite per week, starting ASAP and inside IR35, through end of 2026. You will mentor junior developers, drive architectural decisions, and collaborate with Product Owners and

Qualifications

• Proven experience building full-stack apps with React, Angular or Vue.
• Experience delivering APIs via REST/GraphQL.
• Hands-on cloud experience with Azure or AWS.
• Familiarity with CI/CD pipelines and containerization.

Responsibilities

• Design, develop, and maintain full-stack applications using modern frameworks.
• Build scalable APIs, microservices, and integrations.
• Develop high-quality frontend components with performance in mind.
• Optimize performance, reliability and scalability of systems.
• Contribute to architecture decisions and long-term tech strategy.
• Create technical designs and documentation.
• Utilize CI/CD pipelines for end-to-end automation.
• Work with cloud platforms for hosting and deployments.
• Monitor, log, and tune application performance.
• Collaborate with Product Owners, Designers and cross-functional teams.
• Mentor junior developers and participate in Agile ceremonies.

Skills

React

Angular

Vue

REST APIs

GraphQL

Azure

AWS

GitHub Actions

Azure DevOps

Jenkins

Docker

Kubernetes

Agile/Scrum

Tools

CI/CD tooling

Job description

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