// open to new roles · onsite & remote
1const developer = {
2  name: "Avijit Karmaker",
3  title: ,
4  location: "Helsinki, Finland",
5  dayJob: "Full-Stack Developer @ JJ-NET OY",
6  techLead: "Tech Lead @ GoDoc (€10k funded fintech)",
7  studying: "MSc Cybersecurity, JAMK 2025–",
8  yearsExperience: 4,
9  sitesMaintained: 150,
10};
// open to:🇫🇮Finlandonsite or remote🇩🇪Germanyremote🇳🇴Norwayremote🇸🇪Swedenremote🇬🇧UKremote🇩🇰Denmarkremote
ReactNext.jsTypeScriptNode.jsASP.NETMongoDBSupabaseWordPress/GutenbergCrewAIAzure AI
0
years production React
0
funded startup (GoDoc)
0
client sites maintained
0
Finnish citizen · no visa needed
// about.ts
const about = {
/*

*I got into development because I like understanding how things work under the hood — and fixing them when they don't. Over four years in Finland I've shipped custom WordPress and React systems for organisations like Helsinki City, built a funded fintech product from the ground up, and delivered 25+ complex client sites from scratch alongside maintaining 150+ production WordPress sites.

*The work I'm most proud of tends to be the unglamorous kind — rescuing a codebase nobody else wanted to touch, debugging a legacy system at midnight, building a theme architecture that makes clients' lives easier. That's where I do my best thinking. Alongside my day job I've worked across multiple startups — stepping in as tech lead at a funded fintech, keeping an AI chatbot platform running after the lead architect left, and building a multi-agent AI prototype for investor demos.

*Currently leading engineering at GoDoc alongside my day job, and starting an MSc in Cybersecurity at JAMK. Looking for a team where I can keep building things that matter.

*/
25+
sites built at JJ-NET
3
startups worked with
1+
year building Empa
4+
years in Finland
// currently
Tech Lead / CTO at GoDoc — funded fintech, Helsinki
Full-Stack Developer at JJ-NET OY — building & maintaining 150+ sites
Starting MSc Cybersecurity at JAMK University, 2025
Open to roles — Finland onsite, remote across Europe
// outside_work
AI toolingmulti-agent systemscybersecurityopen sourceside projects
}
// featured_projects.tsx
const projects = [

Personal,startup and company projects.

// company project · solo build · 1 year+
Empa — WordPress Theme System
Company projectArchitectDeployed
Built from scratch over 1+ year — a clean-slate WordPress theme where the editor starts with only p and h1, everything else added on demand.

A React-powered block manager handles remote block registration, dependency resolution between patterns, and usage tracking across every page, with full multisite and child theme support.

ReactWordPressGutenbergPHPACFMultisite
// startup · part time · tech lead
GoDoc — Fintech Document Courier
€10k FundedCTOLive
Rescued a failing codebase and became sole technical lead. Rebuilt and now runs the full stack across API, web client, and mobile app.

GoDoc connects banks with courier networks to handle physical document delivery securely. I own all technical decisions, architecture, and delivery — from backend API design to mobile release.

ASP.NETReactReact NativeSQL ServerREST APIAzure
// personal project · full stack + payments
EcoRides — Vehicle Rental Marketplace
LiveNext.jsStripe
Dual-sided marketplace where owners list vehicles and renters book them — the entire data layer runs on Next.js Server Actions instead of a separate REST API.

Calendar-based availability, Stripe Embedded Checkout, and per-vehicle reviews on the renter side, with a role-based admin dashboard tracking bookings and revenue across the platform.

Next.jsTypeScriptPrismaSupabaseClerkStripe
// personal project · full stack + payments
CurtainCalls — Event Booking Platform
LiveMERNStripe
Full booking platform for live theatre and events, with real-time seat holds during checkout so two people can never buy the same seat.

Stripe handles payment end-to-end, with booking confirmation logic and an admin dashboard for managing shows, showtimes, and reservations.

ReactNode.jsExpressMongoDBStripeJWT Auth
// personal project · full stack
Home Accounts — Finance Tracker
LiveMERNSolo project
Personal finance tracker built to replace a spreadsheet habit — income and expense logging with a statistics dashboard for a clearer monthly picture.

Currently upgraded with improved data visualisation, custom budget categories, and a cleaner UI pass across the whole app.

ReactNode.jsExpressMongoDBJWT AuthRecharts
];
// experience.ts
const experience = [
2023 – Present
// full time
Full-Stack Developercurrent
JJ-NET OY · Finland

Maintaining and developing 150+ WordPress sites for major Finnish clients including Miltton, Castrén, Netox, Proventia, BusinessNokia. Monthly maintenance cycles, legacy codebase debugging, feature development. Built custom React/Gutenberg systems for Helsinki City and the Finnish Museums Association. Solo-architected the Empa theme system over 1+ year.

ReactGutenbergTypeScriptPHPWordPressMultisite
2024 – Present
// part time · startup
Tech Lead / CTOcurrent
GoDoc · Helsinki (€10k funded fintech)

Sole technical lead. Rescued failing codebase left by previous team. Rebuilt and maintains ASP.NET API, React web client, and React Native mobile app. Owns all architecture, deployment, and technical decisions.

ASP.NETReactReact NativeSQL ServerAzure
Oct 2024 – Oct 2025
// part time · startup
Full-Stack Developerclosed
Aika · AI Chatbot Startup · Helsinki

Joined as UI developer, scope expanded rapidly. Implemented Microsoft Azure TTS/STT. Redesigned entire UI. Stepped in when lead backend architect left — restored system to working order. Built multi-agent AI prototype using CrewAI and vector DB for investor demonstrations.

ReactNode.jsAzure TTS/STTCrewAIFAISSPython
2021 – 2023
// full time
Full-Stack Developer
Miltton OY · Finland

Headless CMS architectures and custom WordPress solutions for corporate clients. Delivered rightware.com (Vue + headless WordPress) and multiple client sites with custom Gutenberg block development.

VueReactWordPressHeadless CMSNode.js
];
// client_work.ts — sites built & delivered
const clientWork = [

// Custom React / Gutenberg sites developed for Finnish organisations · 150+ sites maintained separately

kettutesti.hel.fi
WordPress · Handlebars · TypeScript · PHP · Tailwind
Helsinki City

Interactive personality quiz for Helsinki City's early education programme — children discover which of seven fox characters they are, each representing sustainable future values.

Built the entire web app from scratch.

icare-world.com/ifu
React · WordPress · PHP · REST API
Medical Devices · Global

Finnish medical device company (Revenio Group) making ophthalmic diagnostic tools sold worldwide.

Built a React-powered manual downloader app embedded in WordPress — users filter by product model and download instruction manuals.

museoliitto.fi
WordPress · Handlebars · TypeScript · PHP · Tailwind · 3rd-party APIs
Finnish Museums Association

Finland's national museum association — serving museum professionals, job listings, training, and the Museokortti programme.

Built the entire site from scratch.

rightware.com
Vue · Headless WordPress · REST API
Headless architecture

Finnish automotive HMI software company behind the Kanzi UI framework used in car dashboards worldwide.

Fixed API endpoints, resolved data flow issues, built advanced pagination, delivered new features — fully decoupled headless CMS architecture using Vue.js and WordPress REST API.

netox.com
Custom React Blocks · Gutenberg · WordPress · PHP
Finnish Cybersecurity

Microsoft Security Partner of the Year 2025, offering IT services and cybersecurity solutions to Finnish enterprises.

Built all custom Gutenberg React blocks for the site.

keskustaksi.fi
WordPress · Gutenberg · Custom React Blocks · PHP
Finnish Transport

Major Finnish taxi dispatch operator covering South Ostrobothnia, Pori and Rauma, handling Kela transport services across multiple regions.

Migrated legacy WooCommerce checkout to block-based checkout, built custom React blocks to integrate custom fields with native block functionality, fixed email templates.

enjoynature.fi
React · Gutenberg · WordPress · Tailwind
Finnish Hospitality

Hotel, café and event venue in Hollola, Lakeland Finland — handling accommodation, meetings, events, and seasonal café operations.

Built the entire site including a custom reservation and booking system — integrated Event Manager Pro and wrote custom code to handle table-based reservations and payments.

mesi.fi
WordPress · WooCommerce · Gutenberg · PHP
Finnish E-commerce

Finnish honey and beekeeping supplier founded in 1976, serving both consumers and professional beekeepers with hundreds of products.

Developed several custom plugins adding seamless UI and custom functionality to native WooCommerce with complex business logic.

];
// skills.ts
const skills = {
// frontend
React / Next.js
TypeScript
Gutenberg blocks
Tailwind CSS
CSS / SCSS
Bootstrap
React Native
WordPress theme architecture
Vue.js
// backend & data
Node.js / Express
ASP.NET Core
PHP
Ruby on Rails
MongoDB / Mongoose
Supabase / Postgres
REST API design
PHP / WordPress REST API
SQL Server
// ai & security
CrewAI / multi-agent
Azure Cognitive (TTS/STT)
Vector DB / embeddings
JWT / Auth flows
Azure deployment
OWASP fundamentals
Network security
MSc Cybersecurity — JAMK University of Applied Sciences, 2025–. Security column expands as studies progress.
}
// contact.ts
openToWork(true)

Looking for a full-stack developer who can lead, rescue, and ship? Let's talk.

🇫🇮Finlandonsite or remote🇩🇪Germanyremote🇳🇴Norwayremote🇸🇪Swedenremote🇬🇧UKremote🇩🇰Denmarkremote
// Finnish citizen — EEA right to work, no visa needed anywhere in the list above.
// sendMessage()