# Kodius > Software rescue and embedded product teams for funded SaaS founders. Engineer-run for ten years. The team behind Engine by MoneyLion ($440M acquisition), Cosmic Frog with Optilogic ($50M raised), Poplin (5.0★ Clutch), and UpEquity (+35.57% goal conversion). Kodius is a small, senior software studio based in Zagreb, Croatia, with a remote-friendly setup. Five partners, ~20 senior people. 5.0★ on Clutch across 24 reviews. Founded 2016 by the same two engineers who still run the company. Contact form is read by a partner, not an SDR. ## How Kodius engages Every engagement runs the same shape: a 2-week diagnostic to read the code and the room, a 90-day plan you can defend to investors, then either you run it or Kodius embeds and ships it. ## Productized services - **Rescue Sprint** — 4 weeks, fixed scope, €15–25k flat (paid 100% upfront). Audit, quick-wins, stabilization, written 90-day roadmap. For funded SaaS in trouble. - **Embedded Product Team** — 3–9 months, monthly retainer from €12k/month. Three to five senior engineers + product + design embedded in your stand-ups and your repo. - **Fractional CTO continuity** — Monthly retainer from €3k/month. A named senior tech lead absorbs context in 14 days, stabilizes delivery, keeps the roadmap moving after your CTO leaves. - **Code Care** — Maintenance retainer from €1.5k/month. Deploys, pager, security patches, small features for live products. - **AI-MVP Rebuild** — €15–25k 2-week diagnostic, then rebuild from €12k/month. For Lovable / Bolt / Cursor MVPs that have to survive paying customers. - **Product Redesign** — Monthly retainer from €12k/month. Conversion-led, evidence-based UX redesign. - **Build from scratch** — Embedded team, monthly retainer. For funded founders with a vision and no engineering team yet. ## Named-client outcomes - **Engine by MoneyLion** (fintech, US): Kodius was picked from 80+ development agencies. Together we built and shipped the platform that grew the company to the MoneyLion acquisition ($440M valuation). - **Optilogic / Cosmic Frog** (supply-chain SaaS, US): Kodius built Cosmic Frog — the web app showcasing Optilogic's supply-chain design platform — as one team, shipped to General Availability. Optilogic has since raised $50M. - **Poplin** (healthtech, US): pre-pregnancy companion app shipped on every founder milestone, sometimes early. 5.0★ on Clutch, used across the U.S. - **UpEquity** (proptech, US): redesign of the home-buying platform produced +35.57% goal conversion, +72.26% new visitors, -69.21% bounce rate. - **Music Supervisor** (media, US): their lead dev left and the platform went down. Kodius took over, brought it back up, and has hosted it for 7 years. Songs uploaded grew from 297k to 400k+, active users from 16k to 25k+. Kodius then built We Get Artists alongside it. - **FlexCareers** (HR-tech, AU/NZ): job-matching platform handed over with no team to own it. Kodius has run and modernised it for 6 years; 190,000+ users. - **The Passive App** (HR-tech / AI, US): 1-day workshop + 2-week design sprint → investor-ready prototype in 21 days. 12,000+ users, 5★ verified Clutch review. ## Who reads your first email A partner or senior engineer, not an SDR. Typical reply time is ~6 hours. The 30-minute discovery call is followed by a written proposal in 14 days. No SOW brinkmanship. No scope creep. No "let's circle back" calls. ## Industries Kodius works in Fintech (marketplace, lending, payments), healthtech (wellness, diagnostics, care-pathway), supply-chain SaaS (network-design, optimization, logistics), proptech (home-buying, listings, real estate), HR-tech, media. ## Stack Ruby on Rails, Elixir, GraphQL, React, Next.js, Svelte/SvelteKit, native iOS and Android. ## Track record - Founded 2016 — still run by the same two engineers who started it - 50+ venture-backed teams shipped for since 2016 - 5.0★ across 24 Clutch reviews — 0% below-4-star ratings, ever - Ten years of engineer-run delivery; the products our clients still run are the proof ## Key URLs - [Home](https://kodius.com/) - [About](https://kodius.com/about) - [Contact](https://kodius.com/contact) - [Pricing](https://kodius.com/pricing) - [Case studies](https://kodius.com/case-studies) - [Services hub](https://kodius.com/services) - [Rescue Sprint](https://kodius.com/services/rescue-sprint) - [Embedded Product Team](https://kodius.com/services/embedded-product-team) - [Fractional CTO continuity](https://kodius.com/services/cto-continuity) - [Code Care (maintenance)](https://kodius.com/services/code-care) - [AI-MVP Rebuild](https://kodius.com/services/ai-mvp-rebuild) - [Product Redesign](https://kodius.com/services/product-redesign) - [How an engagement runs](https://kodius.com/how-engagement-runs) - [Engine by MoneyLion case study](https://kodius.com/case-studies/engine) - [Optilogic Cosmic Frog case study](https://kodius.com/case-studies/optilogic) - [Poplin case study](https://kodius.com/case-studies/poplin) - [UpEquity case study](https://kodius.com/case-studies/up-equity) - [Music Supervisor case study](https://kodius.com/case-studies/music-supervisor) - [FlexCareers case study](https://kodius.com/case-studies/flexcareers) - [Careers](https://kodius.com/careers) - [Newsletter](https://kodius.com/newsletter) ## Quick facts **How long has Kodius been in business?** Kodius was founded in 2016 by two engineers who still run the company. As of 2026, that is ten years of continuous engineer-run delivery. **How big is the team?** Around 20 senior people across engineering, product, and design, with five partners. Deliberately small — the same partner who reads your first email is the one who reviews the proposal. **What is a typical engagement length?** Rescue Sprint runs 4 weeks fixed-scope. Embedded Product Team retainers run 3–9 months on average, with several clients (Music Supervisor, FlexCareers) on multi-year continuity. Fractional CTO and Code Care are monthly retainers with no minimum term beyond the first 90-day plan. **What stack does Kodius work in?** Ruby on Rails, Elixir, GraphQL, React, Next.js, Svelte/SvelteKit, native iOS and Android. The team picks the stack that matches the product, not the other way around — and is comfortable embedding into existing codebases in any of those. **Where is Kodius based and how does it work with US/EU clients?** Headquartered in Zagreb, Croatia (CET). The team runs remote-friendly and overlaps the US East Coast morning daily; most US clients get 3–4 hours of live overlap and a same-day async response window. **What does the first call look like?** A 30-minute discovery call with a partner or senior engineer (not an SDR), followed by a written proposal within 14 days. No SOW brinkmanship, no scope creep. Typical first-email reply time is ~6 hours. **What is Kodius's track record with funded SaaS?** 50+ venture-backed teams shipped for since 2016. Named outcomes include Engine by MoneyLion (acquired at $440M), Cosmic Frog / Optilogic ($50M raised post-launch), Poplin (5.0★ Clutch), and UpEquity (+35.57% goal conversion after redesign). 5.0★ across 24 Clutch reviews; 0% below-4-star ratings, ever.