Principle Engineer

Montash • TRAFFIC • Not Specified, Not Specified, United Kingdom • 10h ago

Role: Principal Engineer

Start Date: August 2025
Contract Length: 12 Months
Work Location: Remote
IR35 Status: Inside IR35
Security Clearance: SC & NPPV3 Cleared

Join a major government programme where you ll lead multiple engineering teams, develop critical digital services, and support 24/7 live systems. This is a leadership role within a SAS team, focused on building high-quality applications and infrastructure using modern engineering practices.

Responsibilities:

Lead and mentor teams of engineers across complex digital service projects
Engage with senior business and technical stakeholders
Provide technical assurance on design, risk mitigation, and standards compliance
Shape and refine engineering backlogs and develop user stories
Foster a culture of collaboration, innovation, and continuous improvement
Contribute to and maintain critical service applications in production
Support development of microservices with focus on security, scalability and reliability
Ensure best practice in code quality (TDD, SOLID principles, peer reviews)
Support API architecture, observability, and service monitoring
Participate in a 24/7 on-call rota (Level 3 support)

Required Experience:

Proven experience leading engineering teams on complex digital projects
Excellent knowledge of at least one 4GL, object-oriented analysis and design
Experienced in backlog refinement & preparing user stories
Familiarity with DDaT frameworks, GDS standards & SOLID / best practices
SC Cleared & Eligible for NPPV3 clearance

Desirable Skills:

JavaScript / Vue.js & PHP/Drupal & WordPress (database tuning, CDN, caching)
Knowledge of AWS DevOps principles & Docker, Terraform, Kubernetes, Helm, Git
C#, Java (Springboot, JPA/Hibernate), REST APIs, observability & monitoring, queue technologies & security
History working on building new, evolving, high availability microservices with data integrity
Strong understanding of test methodologies: JUnit, TDD, Integration Tests & E2E
Experience working with relational databases: PostgreSQL

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