Portfolio

Cloud accounting for small and medium business: invoices, bank, VAT and Sodra reports, payroll and an AI assistant that changes data only after you approve, with every step recorded in the audit trail.

• Next.js
• Hono
• MongoDB
• Tauri

Free company search and data API for Lithuania, Latvia, Estonia and the UK: more than 7 million companies and 23 million financial reports from official registries — on the web, through a REST API and an MCP server for AI assistants.

• Next.js
• Node.js
• MongoDB
• AWS
• MCP

An online store for motorcycle and scooter parts that we are moving from WooCommerce to Next.js: parts search by scooter model, prices from the supplier’s price list and an invoice in JARS Apskaita after every payment.

• Next.js
• MongoDB
• Stripe
• JARS Apskaita

Tachograph data platform for transport companies: an Android app reads EU driver cards through a USB reader, the cloud decodes and signature-checks .DDD files, and a five-language web app shows activities, GNSS routes, events and driving-time breaches.

• React
• Node.js
• Go · AWS Lambda
• Flutter

Background-music subscription for cafés, restaurants, hotels, gyms and shops: its own catalogue of AI-generated, hand-picked tracks in six moods, streamed as synchronised radio on the web, Smart TVs and Android TV.

• React
• NestJS
• HLS
• Android TV

Customer app for a Lithuanian water-treatment company: scan the QR code on an installed filter or softener to watch water use, pressure, salt level and leaks in real time, get alerts, book a technician and manage service plans — on the web, iOS and Android.

• Vue 3
• MQTT/IoT
• Flutter
• Stripe

Free Lithuanian word-stress tool: type a word to see its stressed forms with part of speech, gender, number and case. Online since 2015, with an iOS app since 2016; accentuation by the VDU Centre of Computational Linguistics.

• AngularJS
• Node.js
• Redis
• iOS

Sistemium API (public beta): describe your data model in a web portal and instantly get an isolated cloud database with a REST API and live WebSocket subscriptions — no backend to write or run.

• Node.js
• MongoDB
• WebSocket
• Vue

A beauty-salon website with online booking: the client picks a service, a specialist and a time, and the system never lets the same time be booked twice. A demo with a fictional salon, “Aurum”.

• Next.js
• TypeScript
• MongoDB
• Tailwind CSS

A multi-vendor marketplace prototype: one basket, yet every seller gets their own order and payment, and the administrator sees a summary of all sales.

• Next.js
• React
• TypeScript
• Tailwind CSS