Ion M.

Working as a backend engineer on a large-scale project for Mercedes, within a distributed, multi-team environment:

• Designed and implemented RESTful APIs using FastAPI, background workers with Celery, and selected microservices in Go, following clean architecture principles and industry best practices
• Collaborated with architects and other engineers to define service boundaries, design database schemas, and integrate with internal Mercedes systems
• Contributed to code quality through code reviews, automated testing, and improvements to observability, including logging, metrics, and error handling, ensuring production stability
• Worked in a delivery model similar to B2B contracting, with clear ownership of tasks, defined project scope, and close collaboration with client stakeholders

Part of a backend team building a complex system for pharmacies in the United Kingdom, using Golang and SQL databases.

• Implemented business-critical features, APIs, and data flows across multiple microservices, ensuring correctness and maintainability
• Designed data models and optimized database queries to maintain strong performance under real-world workloads
• Integrated services with external systems and internal microservices, handling edge cases and error scenarios effectively
• Collaborated with QA engineers, DevOps engineers, and product owners to deliver production-ready increments that met business requirements and could be deployed safely

Responsible for creating the company’s web products from the ground up: backend architecture, database schema, and deployments:

• Implemented REST APIs, background processing, and integrations with third-party services to support business requirements
• Containerized applications with Docker and deployed them to servers, ensuring repeatable and reliable release processes
• Collaborated closely with stakeholders to rapidly iterate on features and adapt the product to evolving requirements, working in a delivery model similar to B2B contract engagements

• Contributed to multiple client projects, focusing on backend development and the integration of third-party services and APIs
• Implemented new features, resolved defects, and enhanced existing functionality in close collaboration with frontend and mobile development teams
• Followed best practices for code quality, version control, and documentation, helping increase delivery speed and reduce regressions
• Gained experience working across multiple clients and business domains, adapting quickly to new codebases, technologies, and requirements