Senior software engineer
→
Tech Lead & Web architect
Bridging the gap
between complex business requirements and high-performance engineering.
Freelance engineer focused on system design, frontend architecture, and building high-end digital products for ambitious companies.
Available for freelance missions (800–1000€/day) and high-end web projects.
What I do ?

  • System design & architecture

    • scalable architecture design
    • frontend / backend structure
    • long-term maintainability

  • High-end web platforms

    • premium websites
    • performance-focused applications
    • UX + conversion oriented systems

  • Engineering optimization

    • performance tuning
    • refactoring legacy systems
    • improving developer experience
Case studies
From legacy monolith to a scalable, premium design system
Context & Problem
A high-growth SaaS suffered from 4s+ load times and UI inconsistencies, leading to user drop-off and slow feature deployment.
Tech Leadership & Solution
  • Designed a modular architecture (atomic design) using Next.js for maximum component reusability.
  • Implemented performance budgets (optimizing LCP/CLS) to ensure a "snappy" premium feel.
  • Enforced strict TypeScript contracts to eliminate runtime errors across the platform.
Business Impact
  • 60% reduction in page load time.
  • 2x faster onboarding for new developers.
  • Significant uplift in conversion rates due to a seamless UX.
Scaling engineering velocity through shared architecture
Context & Problem
A team of 10+ engineers faced constant regressions and "state management hell," slowing down the roadmap by weeks.
The Leadership
  • Architected a robust state management pattern (Zustand/TanStack Query) to decouple business logic from UI components.
  • Built a documented design system (storybook) as the "single source of truth."
  • Integrated automated quality gates (CI/CD, integration tests, strict linting).
Business Impact
  • 40% decrease in production bugs within the first quarter.
  • Reduced QA feedback loops by 50% through design-to-code alignment.
Resilient API infrastructure for high-traffic data processing
Context & Problem
A legacy Node.js API struggled with traffic spikes, resulting in frequent downtime and unstable response times during peak hours.
The Leadership
  • Migrated from a synchronous structure to an event-driven architecture (message queues).
  • Implemented multi-level caching (Redis) and optimized SQL indexing/pooling for data-heavy requests.
  • Redesigned the API with strict OpenAPI/Swagger contracts to ensure reliability for third-party integrations.
  • Established observability (monitoring/alerting) to catch bottlenecks before they hit production.
Business Impact
  • 99.9% system uptime achieved.
  • 5x increase in throughput capacity with zero increase in infrastructure costs.

How I work ?

I focus on building systems that are simple at the surface, but deeply scalable underneath.
  • Architecture First
    I don’t just write code. I design systems that avoid over-engineering while remaining adaptable.
  • Product Thinking
    I align every technical decision with business KPIs and user needs.
  • Pragmatic Leadership
    I advocate for "Boring Technology" for stability, while leveraging cutting-edge tools where they provide a competitive edge.
Tech stack
  • Core Tech:
    React, Next.js, TypeScript, Node.js.
  • Architecture:
    System Design, Micro-services, Design Systems.
  • Backend & Data:
    PostgreSQL, Redis, GraphQL, API Design.
  • Operations:
    AWS/Vercel, Docker, CI/CD Optimization.
Why work with me ?
Architecture-first mindset
I prevent technical debt before it happens.
Performance focused
I build for speed, which directly impacts your bottom line.
Bridge the gap
I speak both "Product" and "Engineering" fluently.
Delivery oriented
High-quality code delivered on time, with no surprises.

Contacts

Let’s build a high-quality system together.
+33 7 43 10 59 97
engineer@upradata.com