Backend Developer Consultant - Tech Consultancy

Salary: £95,000 - 130,000 per year

Requirements:

• All applicants must be UK security cleared to Developed Vetting level.
• Candidates should have hands-on experience with one or more technologies relevant to the role.
• Experience in software development and a passion for writing code.
• Understanding of software development fundamentals in Java, TypeScript, JavaScript, and/or Python.
• Good overall engineering patterns and practices, with the ability to explain them clearly.
• Demonstrable experience working in teams, particularly in Agile methodologies such as Scrum and Kanban.
• Able to collaborate with and learn from people with different skills, backgrounds, and perspectives.
• Natural initiative-taker who can bring out the best in others.
• Brillia‌nt listener who can help grow our business without compromising standards, integrity, or culture.

Responsibilities:

• Help deliver features end to end.
• Work collaboratively to design new features and solve bugs.
• Deliver cloud native and containerised applications using technologies including AWS Lambda, Spring Boot, NodeJS, Python FastAPI, Oracle, PostgreSQL and MongoDB.
• Build solutions as part of a DevSecOps and Agile ecosystem supported by tooling including Atlassian, Jenkins, GitLab, OWASP and AWS componentry.
• Ensure solutions work in a reliable and resilient way using Site Reliability Engineering methods to increase availability while reducing costs and callouts.
• Help the client and end users understand trade-offs when making product decisions and explain why we would do things a certain way.
• Keep learning through workshops, shared resources, and contribution to our engineering culture.
• Champion small details, spot opportunities, and add extra value for our clients.

Technologies:

• AI
• AWS
• Lambda
• Atlassian
• Cloud
• DevSecOps
• FastAPI
• GitLab
• Java
• JavaScript
• Jenkins
• Kanban
• MongoDB
• NodeJS
• OWASP
• Oracle
• PostgreSQL
• Python
• Security
• Spring
• Spring Boot
• TypeScript
• Support
• Slack
• UX UI Design
• Backend

More:

We are Deloittes Technology and Transformation team, working with Defence & Security clients on some of the biggest and most ambitious programmes to help keep our country safe. We are growing our teams across Bristol, Cambridge, London and Manchester, with hybrid working that supports a balance between office, client site, virtual collaboration spaces and remote working. We offer excellent development opportunities, world-class development, and a culture built on inclusion, integrity, collaboration and measurable impact. Our team focuses on technical delivery of new solutions, innovation, engineering, AI and data, and helping clients digitise and transform with modern technology capabilities.

last updated 34 week of 2026