Lead Technical Developer (.Net and Python)

We are passionate about user-centred design, agile delivery, and building digital services that make a real difference. Our teams work at the forefront of innovation, helping organisations transform and deliver high-quality, scalable solutions that truly matter.

Overview

We are seeking an experienced Lead Technical Developer to provide hands-on technical leadership within a client delivery team. You will be responsible for driving engineering standards, code quality, and the technical direction of a work package, ensuring the delivery of secure, maintainable, and high-quality software aligned with client engineering standards.

• Lead the technical design and implementation of features across cloud and data centre work packages.
  

• Define and enforce coding standards, code review processes, and secure development practices in line with client GitHub standards.
  

• Mentor and support senior and full-stack developers, ensuring consistent engineering excellence across the team.
  

• Collaborate closely with Solution Architects to ensure implementation aligns with approved architecture and technology standards.
  

• Lead technical onboarding activities and knowledge transfer to client personnel and successor suppliers.
  

Architecture & Documentation

• Produce and contribute to architecture documentation and Technical Design Authority (TDA) artefacts at work package level.
  

• Ensure technical documentation is maintained to a high standard.
  

DevOps & Security

• Own and maintain CI/CD pipeline quality using Azure DevOps.
  

• Contribute to the design and maintenance of automated deployment pipelines.
  

• Drive DevSecOps best practices, including:
  

  • SAST/DAST security scanning
    

  • Dependency management
    

  • Environment segregation
    

  • Secure software development practices
    

Quality & Compliance

• Ensure all solutions meet WCAG AA accessibility standards.
  

• Provide guidance on the appropriate use of AI-assisted coding tools within approved enterprise environments.
  

Security Clearance Requirement

SC (Security Check) clearance is mandatory for this role.

Candidates must be eligible to obtain SC clearance. Eligibility typically requires:

• British nationality, or
  

• A minimum of 5 years' continuous UK residency
  

Clearance sponsorship will be provided upon appointment.

• Legacy Windows technologies - Win32, WPF, MFC/ATL, COM, MSI packaging. [DESIRABLE]
  
• Geospatial data formats - GeoJSON, MBTiles, GML. [DESIRABLE]
  
• MOD Secure by Design and NCSC software security standards. [DESIRABLE]
  

This role requires eligibility for SC Security Clearance. Candidates without existing clearance will be supported through the vetting process upon appointment.

Please note that attendance in Taunton, Somerset, a minimum of two days per week, is a firm requirement of this engagement.

We welcome applications from candidates of all backgrounds and actively encourage individuals from underrepresented groups, including women, people with disabilities, and diverse communities, as well as those seeking flexible working arrangements.

As a Disability Confident Level 1 employer, we are committed to providing reasonable adjustments throughout the recruitment process and during employment to ensure equal opportunities for all.