Telecom · Backend & authentication
Elisa
Authentication for Elisa's back-end systems: who gets in, and with what rights.
- Authentication
- Access control
- Backend
Software engineering · Tallinn, Estonia
Engineering partners for
products that have to
work.
We develop software for clients across Europe, from web and mobile apps to cloud solutions and AI.
- 1
working dayWe reply within one working day.
- 2
weeksWe ship working software every two weeks.
- 100%
yoursThe code is yours, hosted in the EU.
Senior engineers, no middle layers, and a codebase you own on day one.
A small studio that finishes things
Most agencies scale by hiring juniors and adding project managers. That works for them and rarely for you: every layer between the person with the problem and the person with the compiler costs you clarity, time and money.
More about usWhat we do
Full-stack delivery, one team
From the first architecture sketch to the servers it runs on. You get one team accountable for the whole thing, not a handoff chain.
Agents, models and chatbots that do real work, not demos.
- AI agents that act in your systems with explicit permissions
- Data science and models whose decisions you can defend
- Chatbots that answer correctly or hand over to a person
Marketing sites that load instantly, and SaaS products that hold up under real users.
- Next.js and React with server components
- Design systems built on Tailwind and shadcn/ui
- Multi-language and multi-domain setups
One Kotlin Multiplatform codebase, native interfaces on both Android and iOS.
- Kotlin Multiplatform for shared business logic
- Jetpack Compose and SwiftUI interfaces
- Offline-first data and background sync
Spring Boot services and PostgreSQL schemas designed to still make sense in year three.
- Spring Boot, Java 21+, Spring Data JPA
- PostgreSQL with versioned Flyway migrations
- REST and WebSocket APIs with real documentation
Reproducible infrastructure, automated deploys, and a bill you can explain.
- Docker and Docker Compose stacks
- CI/CD with GitHub Actions
- Self-hosted EU servers or the hyperscaler of your choice
Authentication that passes an audit, and the connections to everything else you run.
- Keycloak, OAuth2 and OpenID Connect
- Smart-ID and Mobile-ID for Estonian and Baltic users
- Payment providers, ERP and CRM integrations
“Techbaltics OÜ is an Estonian software company. We are deliberately small: the people who scope your project are the people who write the code and the people you call when something breaks at 23:00.”
Products running in production
Three we can talk about publicly.
Marketplace · Web & automation
AutoSky Rent
Car rental and sales platform with an automated pipeline that keeps listings in sync with an external classifieds site.
- manual listing entry
- 0
- automated sync
- 24/7
Marketing site · Web
Yacht Nation
A charter company’s public site, built for the kind of client who judges the boat by the website.
- largest contentful paint
- <1s
- self-hosted, EU
- 100%
How we work
Four steps, no surprises
01
Discovery
A paid two-week sprint: we map the domain, agree the scope, and produce an architecture and a budget you can actually plan against. You keep the output whether or not we continue.
02
Architecture & design
Data model, API contracts, infrastructure plan, and interface design. Decisions get written down with their trade-offs, so the next engineer to touch the system knows why.
03
Build
Two-week sprints against a public board. Every sprint ends with something deployed to a staging environment you can click through, not a status report.
04
Launch & operate
We ship it, monitor it, and hand over the runbook. Stay on a support retainer or take it fully in-house: both are normal endings.
What we work with
The tools we actually use. Every one of them is running in a system we have in production.
- Next.js
- React
- TypeScript
- Tailwind CSS
- Vue.js
- Kotlin
- Kotlin Multiplatform
- Jetpack Compose
- SwiftUI
- Android
- iOS
- Java
- Spring Boot
- Node.js
- Maven
- Gradle
- PostgreSQL
- PostGIS
- Flyway
- Docker
- GitHub Actions
- nginx
- Caddy
- Ubuntu
- Git
- Keycloak
- OpenID Connect
- Smart-ID
- Mobiil-ID
- Playwright
- Web
- Next.js, React, TypeScript, Tailwind CSS, Vue.js
- Mobile
- Kotlin, Kotlin Multiplatform, Jetpack Compose, SwiftUI, Android, iOS
- Backend
- Java, Spring Boot, Node.js, Maven, Gradle
- Data
- PostgreSQL, PostGIS, Flyway
- Infrastructure
- Docker, GitHub Actions, nginx, Caddy, Ubuntu, Git
- Identity & integrations
- Keycloak, OpenID Connect, Smart-ID, Mobiil-ID, Playwright
Let’s talk.
Send a few lines about the problem. You will get a real engineer’s answer within one working day, not a sales sequence.