Frontend Engineering
Angular
Scalable UI architecture, predictable state management, and performant Angular applications built for long-lived codebases.
Sigfrid Couto
Fernández
15+ years designing, stabilising, and evolving complex enterprise systems.
I integrate into existing teams, modernise legacy platforms, and build systems designed to endure.
Based in France — working with teams across France, Germany, and Spain.
Engineering focus
Core Engineering Areas
Built for enterprise environments where complexity and reliability are non-negotiable.
Backend & API Development
.NET
Robust C# / .NET services and REST APIs designed for reliability, scalability, and long-term maintainability.
Legacy Modernisation & Integration
Modernisation programmes that reduce technical debt while keeping operations running.
Experience
Professional Snapshot
- 2023–Present
Designed and delivered enterprise-grade financial workflow platforms in regulated environments.
- 2017–2023
Contributed to the modernisation of enterprise logistics platforms within embedded product teams.
- 2012–2017
Designed and delivered rights data platforms and XML integrations across cross-functional teams.
Approach
How I work
Embedded or independent
I either embed within your team or take full ownership of a defined workstream — with the same level of accountability.
Clear communication and ownership
Early visibility on decisions, blockers, and trade-offs — no end-of-sprint surprises.
Maintainability by default
Each engagement leaves the codebase easier to understand, extend, and trust.
Get in touch
Let’s work together
If you’re working on a modernisation, integration, or long-term delivery initiative, let’s talk.
Based in France · Available for EU remote and on-site engagements