Full-Lifecycle Software Delivery for a Big Four Audit Firm

The Challenge

A Big Four firm required a reliable engineering partner capable of owning the full software delivery lifecycle across diverse and rapidly evolving projects — from requirements analysis through to production deployment and ongoing support. Projects ranged from internal tooling and audit workflow automation to client-facing web and mobile applications, each with enterprise-grade expectations around security, code quality, and delivery predictability. The environment was highly regulated, demanding rigorous testing standards and thorough documentation at every stage.

Our Approach

We embedded as a full-cycle delivery partner — contributing Business Analysts for requirements definition and process mapping, Solution and Application Architects for system and integration design, and senior engineers across the required technology stacks. Each project followed a structured DevSecOps methodology with automated security scanning, code quality gates, and CI/CD pipelines. GitHub Copilot was integrated into the development workflow to accelerate delivery without compromising quality standards. Automated testing was built in from the start — unit, integration, and E2E test coverage — with complex scenario testing for business-critical workflows.

What We Built

A multi-project software delivery programme covering: Angular and React web applications with responsive, accessible UI. Native iOS and Android applications alongside cross-platform Flutter development. .NET backend APIs with robust integration layers connecting to third-party systems and internal data platforms. Cloud adoption projects on both Azure and AWS with infrastructure automation and DevSecOps practices. Microsoft Entra ID integration for enterprise identity and access control across projects. Automated test suites for unit, integration, and end-to-end coverage. Full solution documentation, architecture decision records, and handover artefacts for each delivered project.

Results & Impact

Multiple production applications delivered on schedule across web, mobile, and API workstreams. Automated test coverage and CI/CD pipelines enabled continuous delivery with high confidence for a regulated enterprise environment. GitHub Copilot adoption measurably improved developer velocity across the team. Cloud adoption projects reduced infrastructure management overhead while improving scalability and observability. The engagement was recognised by the client as a long-term delivery partnership, with the team continuing to contribute across multiple successive projects.

Technologies Used