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Hi, I'm Maria Karen Derkach, a results-driven Full Stack Developer based in Cologne, Germany. I design and build scalable web applications using MERN and MEVN stacks, with a data-informed approach shaped by my background in finance. I enjoy collaborating with cross-functional teams to deliver high-quality digital solutions and continuously learn new technologies. I'm excited to contribute to innovative projects in a dynamic, agile environment.…Hi, I'm Maria Karen Derkach, a results-driven Full Stack Developer based in Cologne, Germany. I design and build scalable web applications using MERN and MEVN stacks, with a data-informed approach shaped by my background in finance. I enjoy collaborating with cross-functional teams to deliver high-quality digital solutions and continuously learn new technologies. I'm excited to contribute to innovative projects in a dynamic, agile environment.

Maria Karen Derkach

Web Developer, Front-End Developer, Full Stack Developer, +2

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Hi, I'm Maria Karen Derkach, a results-driven Full Stack Developer based in Cologne, Germany. I design and build scalable web applications using MERN and MEVN stacks, with a data-informed approach shaped by my background in finance. I enjoy collaborating with cross-functional teams to deliver high-quality digital solutions and continuously learn new technologies. I'm excited to contribute to innovative projects in a dynamic, agile environment.…Hi, I'm Maria Karen Derkach, a results-driven Full Stack Developer based in Cologne, Germany. I design and build scalable web applications using MERN and MEVN stacks, with a data-informed approach shaped by my background in finance. I enjoy collaborating with cross-functional teams to deliver high-quality digital solutions and continuously learn new technologies. I'm excited to contribute to innovative projects in a dynamic, agile environment.

Available to hire

Hi, I’m Maria Karen Derkach, a results-driven Full Stack Developer based in Cologne, Germany. I design and build scalable web applications using MERN and MEVN stacks, with a data-informed approach shaped by my background in finance.

I enjoy collaborating with cross-functional teams to deliver high-quality digital solutions and continuously learn new technologies. I’m excited to contribute to innovative projects in a dynamic, agile environment.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

German

Beginner

Work Experience

Frontend Web Developer at Nuromedia GmbH

August 1, 2025 - August 1, 2025

Manage 3+ concurrent web projects in industries such as gaming and healthcare, integrating frontend components with backend services and implementing cutting-edge technologies like VR and AI. Architect and develop scalable front-end applications using MERN and MEVN stacks, improving user experience and maintainability. Collaborate with UX/UI designers and backend developers in an agile environment to deliver user-centered solutions with 80% uptime.

Full Stack Developer at Mawoo Pets – Delaware, USA (Remote)

June 1, 2024 - June 1, 2024

Designed and implemented end-to-end web and mobile applications for the pet care industry, serving 10,000+ active users. Delivered full MERN stack solutions including front-end interfaces, backend APIs, and scalable database architecture, boosting system efficiency by 40%. Led cross-functional collaboration with product managers and designers to deliver new features and resolve technical challenges.

Independent Financial Consultant at DERCON SRL – Misiones, Argentina

June 1, 2021 - June 1, 2021

Conducted financial analysis to identify cost savings and revenue growth opportunities.