Principal Software Engineer (SOW)
BBBH93795_1749143798
Posted: 05/06/2025
- £0.00 - £550.00 per day
- Reading, Berkshire
- Contract
Role Title: Principal Software Engineer (JavaScript)
Location: Remote (occasional onsite near Reading - likely 3-4 times per month TBC)
Engagement: Statement of Work (Outside IR35)
Rate: Up to £550 per day
Overview:
We are looking for a highly skilled Principal Software Engineer to contribute to a large-scale digital modernisation programme with a leader in their respective space. This is a strategic contract engagement focused on modernising and engineering high-quality digital products for a data-driven platform.
This is a hands-on leadership role ideal for an engineer who thrives in delivering complex, enterprise-grade solutions to high standards. You will be working with a multi-disciplinary product team to build scalable, secure, and user-centric applications.
This is a Statement of Work (SOW) contract, where payment will be made upon the successful completion of clearly defined deliverables agreed with the client.
Key Responsibilities:
Engineering Delivery
- Design and build full-stack solutions with an emphasis on quality, performance, and scalability.
- Apply cloud-native design patterns to build distributed systems aligned with modern software architecture principles.
- Implement CI/CD, automated testing, and engineering best practices across the SDLC.
- Ensure compliance with security, privacy, and data protection standards.
- Collaborate with Platform Engineering to integrate internal tooling and accelerate development cycles.
- Take accountability for the build-and-run responsibilities of the product features you own.
Technical Leadership & Product Involvement
- Act as a senior technical lead across a modernisation programme, ensuring consistency and standardisation across engineering teams.
- Work closely with Product and Architecture to shape product direction and technical strategy.
- Drive the delivery of a modern engineering stack, interfacing with SaaS platforms and custom-built services.
- Support and mentor engineers within the product space, upskilling where needed and maintaining high delivery standards.
- Lead initiatives around existing data and event-reporting tools to improve speed, compliance, and usability.
Innovation & Continuous Improvement
- Influence product and delivery strategies using modern, rapid-prototyping approaches.
- Engage in internal innovation programmes to drive continuous value creation.
Technical Skills & Experience:
- 10+ years' software engineering experience
- Strong experience with cloud-native platforms
- Solid grasp of modern application architecture patterns: API-first, microservices, 12-factor app, SOA, etc.
- Deep experience with containerisation and orchestration (e.g., Docker, Kubernetes).
- Proven hands-on experience with:
- TypeScript, Node.js, React/Next.js or similar front-end frameworks.
- CI/CD pipelines, DevSecOps, test automation (TDD/BDD).
- API design and integration, including authentication and authorisation best practices.
- Strong communication and stakeholder management skills across cross-functional teams.
Desirable:
- Background in data-driven platforms or analytics solutions.
- Experience working within modern product delivery teams using agile methodologies.