Septimal Mind

Software Development Consulting

We are a small Irish engineering company with a compact team of exceptionally strong engineers, building robust systems, improving engineering velocity, and investing in open source.

Services

Distributed systems architecture and reliability engineering
Scala and Functional Programming consulting
Developer tooling, build pipelines, and delivery automation
Technical due diligence, codebase audits, and architecture reviews
Team mentoring and hands-on implementation support
Legacy codebase modernization: architecture cleanup, fast reproducible test coverage, and safer delivery workflows
Production stabilization and incident reduction: observability, reliability hardening, and performance tuning

Notable Open-Source Projects

If you use modern Scala, you likely already have our code on your classpath.

izumi-reflect: a fast, lightweight, Scala 2/3, Scala.js and Scala Native alternative to scala-reflect TypeTag.
izumi framework: a Scala productivity ecosystem including BIO typeclasses (tagless-final with bifunctor effects), distage (compile-time safe, debuggable DI), and logstage (structural logging).
Scala compiler contributions: many bug reports, some patches, and libraries included in the Scala community build (Scala 3 community projects, community-build3) to continuously improve compiler stability and quality.
Async stacktraces for ZIO: announced at Dublin Scala Meetup (May 2019) with John De Goes, documented in ZIO tracing docs.
zio-cats interop: interop layer between ZIO and Cats Effect ecosystems.
baboon: a data modeling language and compiler with strong schema evolution, automatic migrations, and efficient binary encodings including UEBA (Ultra-Efficient Binary Aggregate), a compact tagless binary format for serialized models.
SICK: Streams of Independent Constant Keys, a format and toolkit for efficient deduplicated binary storage and indexed access to JSON-like data.

Fun Projects

JOPA: "Javac One Patch Away", a fun demonstration project exploring modern LLM capabilities while modernizing a historical Java compiler in C++.
mudyla: a build script orchestrator with Markdown-based task definitions, used across multiple projects and CI pipelines.

Conference Talks

Selected talks from our public conference/meetup materials (non-exhaustive):

2024-11, Functional Scala — Baboon
2023-11, Functional Scala London — Izumi Framework (November Session)
2023-11, Functional Scala London — Grandmaster (November Session)
2023-11, FScala — Izumi Framework: Reinvent Your Productivity With Modern Pure Functional Scala
2023-10, Lisbon Meetup — Hyper-pragmatic Pure FP Testing with distage-testkit
2023-05, Grandmaster Meetup — Grandmaster
2023-02, Scala Warsaw Meetup — Izumi Framework Code Walkthrough Session
2023-02, Scala Riga Meetup — Izumi Framework Live Coding Session
2023-01, Open Source Hackery — Izumi Reflect: Scala Type System Model
2022-12, Scala SourceTalks — Pragmatic Pure FP Approach to Application Design and Testing with distage
2022-12, Functional Scala — Izumi Framework Session
2020-12, Functional Scala — Izumi 1.0: Your Next Scala Stack
2020-11, LambdaConf — Distage Testkit Workshop
2020-07, Scala Love — Scala, Functional Programming and Team Productivity
2019-12, LSUG Scala Community Day — 7mind Lightning Talks
2019-12, Functional Scala — Hyperpragmatic Pure FP Testing with distage-testkit
2019-03, ScalaUA — LogStage: Zero-cost Structured Logging
2019-03, ScalaUA — distage: Modern Staged Dependency Injection for Scala
2018-10, Scala Meetup — distage: Modern Staged Dependency Injection for Scala
2018-08, Dublin Community Meetup — Project Networks and Percept-Plan-Execute Loop to the Rescue
2018-07, KSUG Meetup — Roles: A Viable Alternative to Microservices and Monoliths