Open to opportunities

Ferhad Mesic

@ferhadmesic

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Senior frontend engineer focused on React, performance optimization, mentoring, and delivering scalable web products.

Bosnia and Herzegovina

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What I'm looking for

I seek a senior frontend role where I can lead architectural decisions, mentor engineers, drive performance-first web experiences, and contribute to product and growth.

I am a Senior Software Engineer and frontend specialist with 8+ years of experience building scalable React and Next.js applications, leading teams, and delivering production SaaS products. I founded a SaaS startup, led end-to-end projects, and achieved significant performance wins (up to 100x) through strategic frontend optimizations.

I mentor engineers across seniority levels, conducted 50+ interviews, organised technical workshops, and maintained exceptional Lighthouse scores (95+ and 100 in my startup). I focus on reusable component design, internationalisation, SEO-first architectures, and measurable product outcomes.

Experience

Work history, roles, and key accomplishments

Current

Senior ReactJS Developer

Current

Cake.com

Mar 2022 - Present (3 years 6 months)

Led frontend development of a multi-platform Slack-alternative, implemented features and strategic performance optimizations that yielded up to 100x improvements in measured scenarios.

ReactJS Redux Performance Optimization Redux Normalization JavaScript

Lead Frontend Architect

Valens.dev

Mar 2021 - Mar 2022 (1 year)

Led architecture and frontend delivery for prilika.ba, organised workshops, mentored developers, and implemented scalable i18n and validation systems while maintaining Lighthouse scores above 95.

ReactJS Redux Frontend Architecture Mentorship Google Lighthouse Component Design

Senior Frontend Developer

Symphony.is

Jun 2019 - Mar 2021 (1 year 9 months)

Delivered client-focused frontend solutions and improved internal time-tracking tool (Core Tool), producing actionable reports and mentoring interns to raise team capability.

ReactJS JavaScript Reporting Mentorship Roadmapping Time Tracking Frontend Development

Software Engineer

Oblique

Mar 2017 - Jun 2019 (2 years 3 months)

Worked as full-stack engineer across projects (Bosniaventure, Kaizen, Gymspaces), led a team of 5 developers at Bosniaventure and ensured successful project delivery.

Full Stack Developer Team Leadership NodeJS ReactJS Project Delivery Mentoring

Founder / SaaS Developer

Self Employed

Founded and built a SEO-first SaaS product using NextJS and AWS, achieved Lighthouse scores of 100, ran user research and A/B tests, and developed pricing and early sales funnel.

MongoDB AWS EC2 S3 SEO A B Testing Product Design