Custom Software Development
Bespoke solutions engineered for your specific business requirements, built with functional programming principles for reliability and maintainability.
Functional Programming Consultancy
We build software
that composes.
SigMap OÜ crafts robust, elegant software solutions rooted in functional programming principles. Based in Estonia, serving the world.
01 — About
About SigMap OÜ
SigMap OÜ is a small software company in Estonia built around functional programming. We design, build, and maintain software for clients and ship apps of our own, with the same approach throughout: simple data, small composable parts, and code that stays easy to change.
Functional First
We leverage functional programming to build software that is predictable, testable, and correct by construction.
Composable
Our solutions are built from small, well-defined modules that compose seamlessly into larger systems.
End-to-End
From initial consultancy through development to long-term maintenance, we cover the full lifecycle.
From the Founder
I'm Lauri Oherd, and I founded SigMap in 2024. Clojure is my main language, but I build whatever a project needs: backend services, web front-ends, and native iOS and Android apps. I bring the same functional habits to all of them: immutable data, small composable functions, and fast feedback at the REPL.
02 — Services
What We Do
From an architecture review to a shipped app, with functional programming at the core.
Mobile & Web Applications
Cross-platform applications with polished user experiences, from responsive web apps to native mobile solutions.
Functional Programming Consultancy
Expert guidance on adopting functional programming in your organization — from language selection to team training and architecture review.
Technical Support & Maintenance
Ongoing support to keep your systems running smoothly, including monitoring, updates, and performance optimization.
03 — Technologies
Our Stack
Functional languages for correctness and concurrency, native toolkits for mobile.
Clojure
Dynamic functional, on the JVM and in the browser (ClojureScript)
Haskell
Pure functional, strongly typed
Elm
Reliable web front-ends
Erlang
Fault-tolerant distributed systems
Swift
Native iOS apps with SwiftUI
Kotlin
Native Android apps
Plus modern web and cloud infrastructure technologies.
04 — Products
What We've Shipped
We build our own products too, with the same practices we bring to client work.
Pull-Up Tracker
A simple, focused app for building a pull-up habit: set daily goals, see your progress, and keep your streak going. Includes home and lock screen widgets on iPhone and is available in 35 languages.
05 — Contact
Get in Touch
Have a project in mind or need functional programming expertise? We'd love to hear from you.
Address
SigMap OÜ
Idapõllu tee 3-21
74001 Haabneeme alevik
Viimsi vald, Harju maakond
Estonia
Registry Code
17111407