ASFrom Thiruvananthapuram to Stockholm, a decade of front-end work. Keep scrolling.
Ajeesh Sathyan, Senior Frontend Engineer
Move through the lights
Senior frontend engineermaking sportsbooks feel instant
Ten years making the web feel instant. Sportsbooks at LeoVegas. Storefronts at H&M. CRM tools in Kerala. Same obsession every time: fast pages, clean code, and teams that ship together.
Career, 2015 to now
2024
LeoVegasNow
Senior Frontend Engineer, Sports betting, Stockholm. Nov 2024 to now
- Build features across 5+ sports betting apps with React, Next.js, GraphQL and Node.js.
- Work in a large monorepo, keeping shared code consistent across teams.
- Drive performance work: code splitting, lazy loading, rendering optimisation.
- Lead medium-sized features, review code and mentor engineers in the squad.
2024
H&M Group
Senior Frontend Software Engineer, eCommerce for Afound and Weekday. Mar to Oct 2024
- Integrated and tuned CMS tooling across the Afound and Weekday storefronts.
- Shipped features, fixes and unit tests with React, Next.js and .NET Razor Pages.
- Worked closely with product, design, back-end and QA.
2021
Wineally
Senior Software Engineer, Wine marketplace, Helsingborg. Nov 2021 to Jul 2023
- Led a small front-end team and turned designs into production Vue interfaces.
- Built an internal UI component library, one of three projects I shipped.
- Part of the code review group, automating repetitive work along the way.
2019
InApp
Senior Software Engineer, CRM and ERP, Thiruvananthapuram. Jul 2019 to Nov 2021
- Built CRM features and reusable component libraries in React.
- Designed a database sync between two apps using Apache Kafka.
- Led the front-end team and mentored junior developers.
2018
ZL Software
Software Engineer, Automotive diagnostics. May 2018 to Jul 2019
- Angular 7 developer for Diadrom, a Swedish autotech diagnostics company.
- Ran Scrum ceremonies and code reviews for the team.
2015
E Systems
Software Engineer, Facility management. Nov 2015 to Apr 2018
- Rendered AutoCAD drawings directly in the browser.
- Wrote C#/.NET APIs and integrated third-party libraries.
Products I design, build and run myself, from idea to launch. One is live, two are MVPs I'm still growing.
Live
MyCalc
my-calc.net
Over 40 free calculators for money, health, maths and everyday life, plus tools for creators and a few just for fun. No sign-up needed.
MVP, in progress
MockPrepAI
mockprepai.in
Mock exams for India's competitive exams (UPSC, SSC, banking, railways and Kerala PSC) that follow the official patterns, with timers, negative marking and AI analysis of your results. In English and Malayalam.
MVP, in progress
Calm Coins
calmcoins.com
Budgeting planned around your payday: envelope budgets, a live safe-to-spend figure, debt snowball and subscription tracking in 150+ currencies, without connecting your bank.
Prototypes
Working demos built quickly to show how an idea could look and feel.
Prototype
Bosphorus Produktfinder
bosphorus-produktfinder.vercel.app
Shoppers search Bosphorus foods like Spisa and Urban Food and see which nearby stores stock them, while an admin portal shows the brand what people are looking for.
Prototype
Miklagård Food
miklagard-food.vercel.app
An online wholesale catalogue for a Stockholm distributor of Turkish and Mediterranean food, with 298+ products across 11 categories.
I take products from idea to launch and beyond, end to end. One person who owns the whole build, from first sketch to the App Store.
Web apps, end to end
Front end, API and deployment. Fast, accessible React and Next.js apps backed by Node.js and GraphQL.
React, Next.js, TypeScript, Node.js, GraphQL, AWS, Azure
Mobile apps
One codebase for iOS and Android with React Native, sharing logic with your web app so features ship everywhere at once.
React Native, TypeScript, App Store, Google Play
MVPs for startups
From idea to a launched product, scoped tightly so you can put it in front of real users quickly and learn.
Product scoping, rapid prototyping, launch
Performance rescue
Slow app? I find what's heavy and fix it, from bundle size and rendering to Core Web Vitals and Lighthouse scores.
Code splitting, lazy loading, profiling, Core Web Vitals
Design systems
Reusable component libraries that keep your product consistent and your team fast as it grows.
Component libraries, documentation, theming
AI-powered features
Assistants, smart search and content generation built into your product with today's AI APIs.
LLM APIs, prompt design, AI-assisted workflows
- DiscoverWe pin down the problem, the users and what a first version must do.
- DesignFlows and screens you can click through before any code is written.
- BuildWeekly releases you can try, with tests and performance built in.
- Launch and growGo live on the web and app stores, then measure, fix and improve.
Have a project in mind?
Start a projectThe tools I field every week, set up in a 4-3-3. Tap a player to see how I use them.
Striker
React
My main tool. I use it every day across LeoVegas' sportsbook apps, and before that at H&M and InApp.
On the bench
- Vue.js
- Angular
- React Native
- Redux
- .NET
- Python
- Apache Kafka
- Azure
- AWS
- CI/CD
- GitHub Copilot
- Cursor
- Claude
Managers, designers and engineers I've worked with, in their own words.
1 of 7
Or drag the card away.
Excellent eye for detail. Critical thinking when adapting static designs and specifications to working code.
Ajeesh's calm personality and thoughtful insights and ideas have been a great value to the team.
Not only leading the front-end team but also mentoring junior developers with dedication and patience.
Working with Ajeesh for the last 6 months has been magical. Always ready to jump into something really quick.
He was one of my first mentors. A highly motivated team player who can be trusted with real responsibility.
Highly skilled and versatile. He adapts to new technologies and is highly committed.
A person who can take a leadership position and lead a team. I liked working with him.
Open to co-founder conversations
Pitch me your idea
If you have a real problem worth solving and need someone to build the product with you, not just for you, let's talk. I can take it from first sketch to web and app store launch, and keep it fast as it grows.
What I bring
- End-to-end product engineering across web and mobile
- Ten years shipping in high-traffic sports betting and eCommerce
- Experience leading small teams and mentoring engineers
- Weekly releases from day one
Who I'd like to hear from
- Founders with a clear problem and people who have it
- Someone who owns the business side: customers, sales, funding
- Ideas where great software is the edge
- People ready to commit, as I would
