Freelancer profile translated to English.

Description

Looking for a software engineer to develop your applications, modernize your legacy systems, or integrate agentic AI into your products?

5 years of experience, including 3.5 years at AWS on cloud transformation projects for major clients. I can help you with:

Software Development: Full-stack applications (Python, TypeScript, Java, React/Angular), AWS cloud architecture, security (IAM, KMS).
Legacy Modernization: Migration of critical systems (PL/I, COBOL, AS/400) to the cloud, using generative AI to accelerate without compromising quality.
Agentic AI: Design of AI agents (RAG, MCP, agentic workflows) to automate your technical processes.

What sets me apart: concrete, quantifiable results — 41 PL/I programs replaced by a single microservice, validation framework delivered in 3 days instead of 4 weeks, platform with 5M+ lines of code coordinated within a team.

Full remote, in-person, high level of autonomy and quality standards.

Languages

French
Native or bilingual
English
Fluent
Romanian
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

Amazon Web Services (AWS)
Software Engineer II
January 2023 - Today (3 years and 6 months)
Paris, France
- Contributor and practitioner of AWS’s standardized Reimagine approach (reverse engineering with AWS Transform, forward engineering with Kiro/AI agents) to modernize legacy mainframe applications into cloud-native microservices; designed and delivered an internal workshop (26 slides) to train the team on the methodology.
- Use case: end-to-end modernization for a major automotive OEM – 41 PL/I programs (12K business rules) replaced by a single Java/Quarkus microservice.
- Capture-Compare-Remediate validation framework (MCP): 16/16 scenarios validated in 3 days vs. a 4-week target, 512 tests passing, byte-for-byte parity with the legacy system.
- Technical lead for a 10-developer team on a 5M+ line codebase (COBOL to Java + Angular): technical coordination, quality standards definition, code reviews; remediated 300k+ SonarQube findings, cut critical latency from 30s to <1s through SQL optimization (validated for 10,000 concurrent users with JMeter) – resulting in a client contract extension.
- Independently built GenAI productivity tools from recurring needs identified across projects, deployed on AWS Transform: SonarQube fixer (1,500 issues / ∼ 1h), Playwright generator (∼ 500 E2E tests), semantic deduplication pipeline (Titan + Claude Haiku).
- Independently led an internal AppSec review (STRIDE threat model, IAM controls, KMS encryption) on an isolated production environment handling sensitive customer code.
- Contributed to the BluAge runtime, a nearly 20-year-old product used to modernize mainframe systems: multi-tab session isolation and jQuery dependency removal – reflecting the platform’s continued adaptability.
Python AWS Agentic AI Legacy Modernization
Paprec
Software Engineer
ENVIRONMENTAL
September 2021 - December 2022 (1 year and 3 months)
Paris, France
- Led the development of the new internal payroll software using Angular & Go
- Developed a calculation engine using Python to automate the computations of employees wages
- Built a tool for image annotation & waste prediction (Angular & Python Flask)
- Leveraged Docker server-side to containerize Frontend and Backend to allow for easy deployment and scalability
Python Artificial Intelligence Angular
Sopra Banking Software
R&D Engineer Intern
February 2021 - August 2021 (6 months)
Paris, France
Worked in the innovation department as part of my master thesis (grade: 17/20).
- Built a dataset and implemented several Machine Learning models for investment advice & profiling
- Built, extended and optimized REST API endpoints for an online banking
- Set up a HTTPS reverse proxy in a Linux containerized environment with NGINX, Docker and AWS
Python Angular