CatapultFixed-price product studioFixed-price product studio · founder-led, AI-native
Idea in.
Live product out.
Twenty-four hours.
Architected and reviewed personally by Nikola Radošević — a former CTO with a background in government-grade security systems. Catapult pairs senior judgment with an AI-native delivery engine: tightly-scoped products ship in a day; full MVPs in a fixed week. Fixed price, signed in writing.
- median ship time, scoped launch
- 24h
- median ship time, scoped launch
- quotes — never hourly billing
- Fixed
- quotes — never hourly billing
- ex-CTO · government-grade security
- 14 yrs
- ex-CTO · government-grade security
- products live in this portfolio
- 7
- products live in this portfolio
01 The founder

Principal engineer · Belgrade
Nikola Radošević
Founder, Catapult
Your product is built by a former CTO — not sold by a senior and handed to a junior team.
Fourteen years across two extremes of software: government-grade security systems where mistakes aren't an option, and startup products where speed decides everything. AI agents multiply the output — the judgment, architecture, and accountability stay with one person.
ICICB Group, Dubai
CTO & board member
Led engineering across a fintech / blockchain portfolio for a Bloomberg-listed group. Bloomberg profile ↗
NetSeT / Veridos
Security systems engineer
Government-grade infrastructure: national ePassport systems, e-visa, HSM-backed digital signatures.
Podyx
Tech lead
Podcast-studio booking platform — grown to hundreds of paying studios.
02 The record
Seven products. One builder. All real, most live.
Every entry has a full case study — the problem, the build, and what shipped.
03 The protocol
Three steps. One accountable founder.
Scope in writing.
Day 0 · free
Send the problem, users, and must-have workflow — the 60-second estimator gives you feasibility, stack, and a price band. Then you get a written scope and a fixed quote.
Try the estimatorBuild in your accounts.
Day 1 → launch
Code lands in your GitHub from day one. Infrastructure and data stay under your ownership. Daily proof of progress — a link, not a status report.
Launch and hand off.
Handoff + warranty
Live URL, tests, setup docs, a recorded walkthrough, and post-launch support with a defect warranty. The clock starts once scope and access are confirmed.
04 The edge
Direct, not bureaucratic. Fast, not rushed.
Senior judgment. AI-native speed.
No project managers, no handoffs, no sales-to-delivery gap. The founder who scopes your product architects and ships it — with an AI-native delivery engine multiplying the output.
Gov-grade engineering habits.
A background in national security systems — ePassports, HSM-backed signatures — shows up in every build: tenant isolation, audit trails, review gates, and tested deploys. Even on a 24-hour MVP.
You own everything.
Code lands in your GitHub. Infrastructure and data stay in your accounts. Documentation and a recorded walkthrough on handoff — no lock-in, no dependency on Catapult to keep running.
05 The terms
Fixed price. Fixed timeline. No surprises.
Every engagement is a fixed quote, scoped to your product — from 24-hour launches to multi-week builds, plus audits and fractional-CTO work. Once scope is signed off the number is final: if the estimate runs over, Catapult absorbs the overrun. Full source in your GitHub, deployment, docs, and a recorded handoff are always included.
Get your quote
Tell us what you're building — you'll get a written scope and a fixed number, usually within a day.
[email protected]Or use the contact formIn a hurry? The 60-second estimator gives you feasibility and a ballpark instantly.
Yes — for tightly-scoped products: one user type, one critical workflow. Larger MVPs ship in a fixed week; complex products in 2–4 weeks. The free 60-second estimator tells you upfront which one your idea is. No surprises after we start.
07 The launch window is open
Your product, live this week.
No sales handoff — Nikola personally reviews every request and tells you whether it fits a 24-hour launch, a one-week MVP, or a bigger build. Fixed price, full source in your GitHub.
Free estimate · no commitment · 60 seconds
