I specialize in solving engineering challenges and delivering efficient engineering solutions designed to meet your business needs, whether for short-term engagements or sustained partnerships. Let’s connect and discuss how I can support your goals.

Christian Nana

I specialize in solving engineering challenges and delivering efficient engineering solutions designed to meet your business needs, whether for short-term engagements or sustained partnerships. Let’s connect and discuss how I can support your goals.

Available to hire

I specialize in solving engineering challenges and delivering efficient engineering solutions designed to meet your business needs, whether for short-term engagements or sustained partnerships. Let’s connect and discuss how I can support your goals.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

French
Fluent
English
Advanced
German
Advanced

Work Experience

Full-stack PHP Developer at BlueWIndow Ltd
June 1, 2025 - Present
Maintained and enhanced a legacy PHP system inspired by Laravel, featuring a CMS backend managing over 5,000+ websites with a Blade­based frontend. Participated in agile sprints, resolved tickets, and reported bugs in Jira; collaborated with product managers, graphic designers, content teams, and SEO specialists to deliver new features and fix issues.
Software Engineer at Codec
May 31, 2025 - July 17, 2025
Delivered over 10 missions involving the design and modernization of critical systems using tech stacks like Express.js, NestJS 8+, Laravel 9+, and FastAPI. Built a hybrid FastAPI API (REST/Event-Driven) with Redis Pub/Sub, reducing stock latency by 97% and cutting delivery errors from 15% to 3%. Integrated a legacy ERP via a SOAP to REST adapter, implemented ACID middleware for transactional consistency, and developed live tracking using WebSocket and Google Maps API. Revamped a monolithic SaaS into microservices using CQRS, multi-tier caching, event-driven workflows, autoscaling, and CI/CD automation, significantly reducing latency and cloud costs. Achieved high contract and unit test coverage and practiced Agile/API-first development including OpenAPI-driven backlog, sprint planning, and collaborative tech reviews.
Software Developer (Freelance) at Streamline Climate
February 28, 2025 - July 17, 2025
Developed 30+ advanced TypeScript tools to automate data scraping workflows, boosting data ingestion capacity by 51% over 9 months. Created modular methods reused across 70% of recent tools, accelerating development and ensuring code consistency and onboarding. Scaled production pipelines to process over 1,000 funding opportunities from 30+ US government databases/APIs, expanding platform offerings.
Back-End Engineer Intern at Fraktal
February 28, 2024 - July 17, 2025
Migrated legacy CI 3.1.7 MVC monolith to modular CI 4 MVC, improving flexibility, maintainability, and testability while reducing technical debt. Audited codebase, defined Bounded Contexts using Domain-Driven Design, mapped dependencies, centralized core modules, and progressively migrated modules using the Strangler Pattern. Migrated business modules including user management, payment integration with Notchpay aggregator (Orange Money, MoMo), and analytics. Built a serverless GraphQL gateway to unify legacy REST APIs, reducing client calls via query batching. Modernized UI with LitElement while retaining jQuery for backward compatibility. Automated repetitive tasks with Bash/PHP scripts and scheduled reports, saving team time.
Software Engineer at Codec
May 31, 2025 - July 20, 2025
Delivered over 10 missions involving the design and modernization of critical systems using tech stacks like Express.js, NestJS 8+, Laravel 9+, and FastAPI. Built a hybrid FastAPI API with Redis Pub/Sub, reducing stock latency by 97% and cutting delivery errors. Revamped a monolithic SaaS into microservices using CQRS, multi-tier caching, event-driven workflows, KEDA autoscaling, and Terraform/K8s CI/CD automation. Achieved high contract, unit, and E2E test coverage. Practiced Agile/API-first development with OpenAPI-driven backlog, sprint planning, collaborative tech reviews, and demo deliveries.
Backend Engineer (Intern) at Codec
March 31, 2023 - July 20, 2025
Internship focused on backend engineering tasks including development and modernization of systems using PHP, FastAPI, and other modern technologies.
Software Developer (Freelance) at Streamline Climate
February 28, 2025 - July 20, 2025
Developed 30+ advanced TypeScript tools to automate data scraping workflows, boosting data ingestion capacity by 51% over 9 months. Created modular methods reused across 70% of recent tools, accelerating development and ensuring code consistency and onboarding. Scaled production pipelines to process 1,000+ funding opportunities from 30+ US government databases/APIs, expanding platform offerings.
Founding Engineer at Driveproducteur.fr (formerly JeVendsMonPotager.fr)
May 2, 2025 - November 9, 2025
Part-time founding engineer responsible for engineering and product decisions for an early-stage beta platform, building the technical foundation with Laravel, Vue.js, TailwindCSS, and implementing CI/CD pipelines with GitHub Actions for automated testing and deployments. Authored technical design docs and system specifications to support feature implementation and collaborated on roadmap and feature prioritization.
Chief Technology Officer at Codec
May 1, 2025 - May 1, 2025
Led technology strategy and delivery; modernized critical systems using Express.js, NestJS 8+, Laravel 9+, and FastAPI. Built a hybrid FastAPI REST API with Redis Pub/Sub, redesigned a monolithic SaaS into microservices with CQRS, multi-tier caching, event-driven workflows, and autoscaling. Achieved strong test coverage and improved latency and delivery reliability.

Education

Bachelor of Technology in Computer science at University Institute of Technology
October 5, 2020 - June 9, 2023

Qualifications

Kodreams Laureate
September 1, 2023 - November 9, 2025

Industry Experience

Software & Internet, Professional Services, Financial Services, Transportation & Logistics, Government, Education