Looking for a job

Mohamed Koumenji

@mohamedkoumenji

Full-stack software engineer and team leader at Avaxia, leading delivery across 6+ services and optimizing processing time by 33%.

Tunisia

Message

At Avaxia, I lead technical delivery for a team of four engineers across frontend and backend work, code reviews, and architecture decisions. I also support implementation and collaborate with product stakeholders to turn business requirements into technical solutions.

Before becoming Team Leader / Full-Stack Software Engineer, I designed applications with React, TypeScript, and Node.js, and developed RabbitMQ workflows across six or more backend services. I reduced data-processing time by 33% through PostgreSQL query optimization and improvements to Node.js workflows.

For JERA, Avaxia's client in Japan, I developed and maintained full-stack applications and REST APIs, including endpoints processing datasets exceeding one million records. Earlier, at YOOTEL, I built a call center CRM system from scratch; my personal projects include club management, election management, and social media applications.

Experience

Work history, roles, and key accomplishments

Current

Team Leader / Full-Stack Software Engineer

Current

Avaxia

Jan 2026 - Present (9 months)

Led technical delivery for a team of 4 engineers, coordinating frontend and backend development, code reviews, architecture decisions, and feature delivery across 6+ services. Support engineers through technical guidance and code reviews while remaining involved in architecture and implementation decisions.

React TypeScript NodeJS Microservices RabbitMQ PostgreSQL Docker Kubernetes AWS Azure API Gateway Code Review Architecture Team Leadership

Full-Stack Software Engineer

Avaxia

Sep 2022 - Jan 2026 (3 years 4 months)

Designed and developed scalable applications using React, TypeScript, Node.js and microservices-based architectures. Designed event-driven workflows using RabbitMQ across 6+ backend services, implementing message routing, asynchronous processing, and error handling for distributed workflows.

React TypeScript NodeJS Microservices RabbitMQ PostgreSQL Docker Kubernetes AWS Azure API Gateway Authentication Authorization

Full-Stack Software Engineer

JERA

Jan 2023 - Jan 2025 (2 years)

Developed and maintained full-stack applications using React, Node.js, and TypeScript, applying SOLID principles and clean-code practices to build maintainable and scalable frontend features and backend REST APIs. Analyzed and optimized API performance by measuring response times and identifying bottlenecks, particularly for endpoints processing datasets exceeding 1 million records.

React NodeJS TypeScript REST APIs SOLID Principles Clean Code Performance Optimization Integration Testing Swagger OpenAPI Scrum

Full-Stack Developer Intern

YOOTEL

Feb 2022 - May 2022 (3 months)

Built a call center CRM system from scratch, covering both frontend (Angular) and backend (NestJS) development. Designed scalable backend architecture and integrated PostgreSQL for efficient data management.

Angular NestJS PostgreSQL CRM backend architecture