Senior Frontend Engineer

Mercell is a leading public tendering and bidding platform serving European buyers and suppliers. As a React Tech Lead at Mercell, I drive technical innovation while overseeing the development and maintenance of scalable, high-performance web applications. Working within a multicultural, Agile team, I balance hands-on coding with leadership responsibilities to ensure the team delivers high-quality products that meet business goals.
 

• Leading technical execution and collaborating with group architects to establish a consistent, scalable, and maintainable codebase, ensuring alignment with business objectives and long-term technical vision.
• Spearheading the migration of legacy features into the core Mercell platform, improving system stability and performance while reducing technical debt.
• Designing, implementing, and maintaining micro-front end architectures, ensuring modularity and scalability across the platform.
• Enhancing UI/UX to align with design guidelines, improving the user experience and overall usability of our applications.
• Mentoring junior developers, conducting code reviews, and fostering a culture of technical excellence and knowledge sharing.
• Supporting cross-team collaboration to ensure dependencies and integration points are smoothly managed, enabling the team to meet deadlines and technical milestones.

Success Factory is a network marketing company based in Amsterdam, specializing in web and mobile applications. As a Senior Frontend Engineer, I led a dynamic Scrum team in designing, developing, and maintaining innovative products built with React, React Native, Next.js, Node.js, TypeScript, and other cutting-edge technologies. In this role, I balanced hands-on technical contributions with leadership responsibilities, helping drive the team’s success while ensuring scalability and performance of the applications.

Key Responsibilities:

• Lead the development and deployment of high-quality web and mobile applications, overseeing the full software development lifecycle from architecture to delivery.
• Architect scalable solutions and define project infrastructure, ensuring that technical choices align with long-term goals and support a growing user base.
• Provide mentorship to mid and junior developers, conducting code reviews and guiding them through technical challenges to elevate the overall team's capabilities.
• Organize workshops and technical sessions to promote knowledge sharing, innovation, and continuous learning within the team.
• Foster a collaborative work environment by partnering with Backend engineers, QA, Product Managers, and Designers to deliver seamless and well-integrated user experiences.
• Lead recruitment efforts by interviewing and hiring new developers to expand the team, ensuring cultural and technical alignment.
• Maintain and extend legacy projects, ensuring ongoing improvement and integration of new features without compromising system stability.

At Fujitsu, I collaborate with a talented, global team of engineers to design and build cutting-edge blockchain applications for clients worldwide. My role as a Senior Full-Stack Engineer primarily focused on developing responsive, high-performance platforms using Node.js, Next.js, React, TypeScript, GraphQL, and a microservice-based architecture. In this fast-paced environment, I combined hands-on development with team leadership to deliver scalable and secure solutions.
Key Responsibilities:

• Lead the development and delivery of scalable, high-performance blockchain applications, ensuring technical excellence and alignment with client requirements.
• Translate client specifications into clear, actionable tasks, working closely with product managers and clients to define and prioritize project goals.
• Mentor and guide junior developers, providing technical leadership through code reviews, architectural guidance, and hands-on support to ensure best practices and high-quality deliverables.
• Collaborate cross-functionally with backend teams, product managers, and designers to integrate complex systems and deliver seamless user experiences.
• Facilitate agile processes, including running daily Scrum meetings, sprint planning, and retrospectives, to ensure that the team meets objectives and continuously improves.
• Help shape the architecture and scalability of the application, contributing to the design of a micro-frontend architecture and microservices that enable easy scalability and maintainability.
• Ensure the use of best practices in development, testing, and deployment, driving a culture of quality and technical excellence across the team.