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Tretji Val

Built with care,
built to last.

I’m Miha Rekar. Through Tretji Val, d.o.o. I help teams design, build, and operate product-focused web apps. I mostly work with Ruby on Rails + Hotwire, with a pragmatic approach that prioritizes maintainability, performance, and calm operations.

Tretji Val logo

Selected work

Visualizer.coffee

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This started as a tiny, bootstrapped experiment on a random afternoon: I wanted a nicer way to share Decent Espresso shot charts - something cleaner than screenshots and more useful than a static image. I shipped a scrappy first version, posted it to the community, and then just kept listening. One small improvement at a time: better parsing, nicer charts, skins, accounts, mobile UX, and a steady stream of quality-of-life polish. It grew completely organically through word of mouth - people sharing links, comparing shots, and pulling new users in - until it quietly turned into a very successful side business with thousands of users and millions of uploaded shots.

European Coffee Trip Business

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A B2B SaaS platform built with European Coffee Trip: a custom CMS/CRM with subscriptions, internal workflows, and dependable data sync. The goal is operational leverage: a system that supports day-to-day work while remaining maintainable as the product evolves.

Services

A small, focused offering - optimized for speed, clarity, and long-term maintainability.

Product engineering

From a fuzzy idea to shipped feature: scope, architecture, implementation, iteration.

Rails + Hotwire

Modern Rails with Turbo/Stimulus and Tailwind, with a bias for boring solutions.

Subscriptions & billing

Stripe subscriptions, webhooks, invoicing flows, upgrades/downgrades, edge cases.

Integrations & data sync

Imports, automations, and dependable synchronization between systems.

Performance & ops

Profiling, caching, background jobs, and pragmatic database work.

Long-term maintainability

Readable code, documentation, handover, and steady improvements.

Experience

Remote-first roles across product engineering, integrations, and team leadership.

  1. RedGuava (Cliniko)

    Software Writer - Ruby

    May 2024 - Present · Remote

  2. Uplisting

    Integration Engineer - Ruby with Hanami

    May 2023 - Apr 2024 · Remote

  3. Advisable.com

    Senior Software Engineer - Ruby, Hotwire, Shape Up

    Sep 2020 - Sep 2022 · Remote

  4. Silverfin

    Engineering Manager and Software Engineer - Ruby on Rails

    Feb 2018 - Aug 2020 · Remote

  5. Toptal

    Team Lead and Software Engineer - Ruby on Rails

    Apr 2015 - Dec 2017 · Remote

  6. Mediately

    Senior Developer - Ruby on Rails

    Mar 2014 - Sep 2014 · Ljubljana

  7. Parallel Passion

    Creator & host - archived podcast

    Archived · Online

  8. Slovenia Ruby User Group

    Founder & lead organizer

    Dec 2013 - Jul 2020 · Ljubljana

  9. Innovatif

    Senior Developer - PHP

    May 2010 - Nov 2011 · Ljubljana

  10. Smart Com d.o.o.

    Developer - PHP

    Jun 2007 - Sep 2008 · Ljubljana

Recommendations

FAQ

What projects fit best?

SaaS products, Rails modernization, performance optimization, and integrations/subscriptions that need to be correct and maintainable.

What stack do you use?

Ruby on Rails, Hotwire, Tailwind, and Postgres.

How do you work with teams?

Async by default, short calls when needed, and decisions documented. Less ceremony, more shipping.

Imprint

Company details for invoicing and formal communication.

Legal name
Tretji val, razvoj programske opreme, informacijsko svetovanje in kavni projekti, d.o.o.
Short name
Tretji Val, d.o.o.
Business address
Celovška cesta 127, 1000 Ljubljana
VAT / tax number
SI30929474
Company registration number
7399545000
IBAN
LT41 3250 0035 7915 7808 (REVOLT21)