Jan 2024 – Oct 2025 · 1 yr 9 mos · Madrid, Community of Madrid, Spain · Hybrid

• Lead Engineering Manager for Nike’s global frontend checkout platform, responsible for technical strategy, team leadership, and cross-functional delivery across globally distributed teams.
• Introduced a modular micro-frontend architecture, reducing CI/CD pipeline duration by up to 30–35%, enabling cross-project component reuse, lowering test maintenance costs, and decoupling deployments for safer, faster releases.
• Redesigned the checkout experience by transitioning from a multi-step flow to a streamlined single-page model, resulting in a double-digit increase in conversion rate and improved user satisfaction.
• Adopted a Feature Flag–based development workflow, reducing merge conflicts and improving delivery and testing efficiency by approximately 20–30%.
• Led the integration of Adobe and Optimizely to enable robust A/B testing, empowering data-driven • • UX decisions and modernizing the experimentation stack.
• Implemented E2E and unit testing strategies into CI/CD pipelines, leading to over 50% reduction in production bugs, improved test coverage, and greater release confidence.
• Mentored and led a distributed team of 6 frontend engineers, fostering a culture of ownership, technical excellence, and continuous improvement.
• Acted as the key liaison between frontend, backend, QA, product, and UX teams, aligning engineering initiatives with Nike’s global digital strategy.
• Tech Stack: React, Angular, TypeScript, Nx, Webpack, Node.js, Adobe Target, Optimizely, Cypress, Jest, Azure DevOps, Micro-frontend architecture, Feature Flags

Mar 2019 – Sep 2023 · 4 yrs 6 mos · San Francisco, California, United States · Remote

• Provided frontend architecture and technical leadership for international startups and enterprise teams, delivering scalable web platforms and modern frontend infrastructure while mentoring engineers and driving engineering best practices.
• Key Achievements
• Consolidated 7 fragmented internal systems into a unified platform, reducing operational overhead and improving user onboarding time by 50%+.
• Architected scalable frontend platforms using Angular, React, RxJS, and NgRx, improving state consistency and reducing production issues by 30%.
• Led and mentored distributed frontend teams of up to 10 engineers, establishing engineering standards, code quality processes, and scalable component architectures.
• Directed large-scale Angular migrations (v4 → v19), modernizing legacy systems and significantly improving maintainability and development speed.
• Introduced automated testing strategy with Jest and Cypress, increasing deployment confidence and reducing QA feedback loops.
• Improved frontend performance through code optimization and asset compression, reducing page load times by up to 50%.
• Implemented analytics, A/B testing, and behavioral tracking, enabling product teams to make data-driven UX decisions.
• Collaborated closely with backend teams to optimize API design and data flows, improving application responsiveness and user experience.
• Established engineering best practices through regular code reviews, architectural guidance, and mentoring, raising overall development quality.
• Clients
• Mercury (Shipping Platform)
• Crea Inc. (Web3 Startup)
• Aksigorta (Enterprise Insurance Platform)
• Tech Stack
• Angular, React, RxJS, NgRx, TypeScript, Tailwind, SCSS, Cypress, Jest, REST APIs, WebSockets, Node.js, Storybook, Web3.js, Wagmi, Azure DevOps, Agile

Jan 2017 – Mar 2019 · 2 yrs 2 mos · Istanbul, Turkey · On-site

• In my role as the lead front-end developer, I spearheaded the engineering of dynamic and scalable web applications, leveraging cutting-edge technologies to enhance user experiences and ensure client satisfaction. With a keen eye on technical excellence, I supervised the development and successful launch of high-profile projects, diligently adhering to project timelines and quality benchmarks. Directing a team of five front-end developers, I provided leadership and fostered a collaborative environment conducive to innovation and productivity. Additionally, I maintained open communication channels with the CEO, ensuring that our development goals remained closely aligned with the overarching objectives of the company.
• Below are a few of my notable contributions:
• Implemented best practices in coding standards and front-end architecture to improve product performance and maintainability.
• Planned, strategised, aligned resources, and tactfully managed various key projects, including Iddaa, PingData, Arikovani, Ideanest, and Millenicomtr.

Sep 2014 – Jan 2017 · 2 yrs 4 mos · Istanbul, Türkiye · On-site