Principal Technical Lead: Greenfield Platform Delivery

RSSB; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

30 days annual leave

Private medical and dental cover

Hybrid working options

Season ticket loan

Travel subsidy

Cycle to work scheme

Volunteer leave

Performance-related bonus

Pension scheme

Learning and development opportunities

Job summary

RSSB invites a seasoned Principal Technical Lead to drive hands-on delivery of a new greenfield platform. You will guide a multidisciplinary sprint team, shape architecture, and ensure secure-by-design from inception to production.

The role blends deep technical leadership with delivery accountability across C#/.NET, React, Azure, Kubernetes, and modern CI/CD practices, including payment and e-signature integrations. Hybrid UK hours and stakeholders across domains are involved.

Qualifications

• Proven experience leading technical delivery on a multi-service platform.
• Strong full-stack capabilities with C#/.NET and React/TypeScript.
• Hands-on with Azure cloud, containers, and CI/CD pipelines.
• Experience integrating payment and e-signature services.
• Experience in regulated industries and security practices.

Responsibilities

• Own the platform's technical delivery, ensuring production-ready increments.
• Enforce coding standards, API design, security, and code reviews.
• Lead estimation, sprint planning, and risk management.
• Collaborate with Delivery Manager and Product Owner to shape backlog.
• Contribute directly to codebase on complex features and integrations.
• Align with solution architecture and communicate technical constraints.
• Apply secure-by-design principles and validate wireframes.
• Represent the team’s work to non-technical audiences.
• Define and enforce CI/CD standards using Azure DevOps.

Skills

C# & ASP.NET Core

RESTful APIs

Entity Framework Core

React & TypeScript

Event-driven architecture

PostgreSQL

API security

Python (FastAPI)

Java stack

Azure cloud services

Kubernetes

CI/CD (Azure DevOps)

Agile delivery

Payment integrations (Stripe)

DocuSign/e-signature

Regulated industry experience

UX collaboration

Tools

Azure DevOps

Kubernetes

PostgreSQL

Job description

RSSB invites a seasoned Principal Technical Lead to drive hands-on delivery of a new greenfield platform. You will guide a multidisciplinary sprint team, shape architecture, and ensure secure-by-design from inception to production.

The role blends deep technical leadership with delivery accountability across C#/.NET, React, Azure, Kubernetes, and modern CI/CD practices, including payment and e-signature integrations. Hybrid UK hours and stakeholders across domains are involved.