Startup Jumpstart / Outsourced Product Development
Startup Jumpstart With Senior Engineers
Build your product with a team that's done this before. You don't have an IT department yet — and you shouldn't have to build one before you ship. Startup Jumpstart gives founders a complete engineering function: senior developers, an embedded project manager, and the technical judgment to take an idea from napkin to scalable SaaS.
MVP in Weeks, Not Quarters
Get a working product in front of users while your competitors are still hiring their first engineer.
Fractional CTO Guidance
Senior architects make the stack, infra, and product calls a non-technical founder shouldn't have to make alone.
Investor-Ready Engineering
Clean codebase, scalable cloud setup, and tech due-diligence-ready documentation from day one.
Top Developers
Clutch 2025
Microsoft Partner
Since 2010
Founders Since 2008
Built startups, scaleups & exits
8 Months to MVP
Average time-to-launch
We Understand Startups
Built by Founders, for Founders
Roxosoft was founded in 2008 by two engineers who've shipped their own products. We know the constraints — and the moves that get you out of them.
No CTO yet, and hiring one takes 6+ months
Day-one fractional CTO + senior team. You get architectural judgment without an executive search.
Runway is short, scope keeps shifting
Lean MVP-first delivery. We build what proves the hypothesis, then iterate based on real user signal.
Investors will ask hard tech questions
Clean architecture, documented decisions, and a codebase that survives a tech due diligence.
You can't risk a vendor that disappears
Long-term partnerships are our default — Mandara is 12+ years, Craftsman 8+, Filestar 2+.
What's Included
From Napkin Sketch to Funded Scaleup
A complete outsourced engineering function — designed for the stages a startup actually goes through.
Product Discovery & Scoping
We pressure-test your idea with founders, define the smallest valuable version, and map a delivery plan you can take to your board.
MVP Development
A senior squad ships your first usable product in weeks, not quarters — with the right tradeoffs between speed and quality.
Iterate to Product-Market Fit
Two-week sprints, fast feedback loops, and a team that's comfortable changing direction when the data says so.
Cloud-Ready Infrastructure
Azure or AWS, infra-as-code, observability — set up so you can scale to your first 100k users without rewriting everything.
Security & Compliance Foundations
Auth, RBAC, data protection, and audit trails — done right early, so SOC 2 and enterprise deals don't block your roadmap later.
Scale-Up & Long-Term Partnership
When you're ready, the same team grows with you — into a Managed Team or hands the codebase to your in-house hires. No vendor lock-in.
How It Works
From Idea to Production in 5 Steps
A repeatable engagement model refined across MVPs, Series A scaleups, and platforms that went on to process millions of transactions.
Founder Call
A no-strings call with our founders. We listen to the idea, the market, the runway, and the deadline you're racing against.
Lean Scoping
We map the smallest valuable MVP, pick the stack, and give you a fixed-shape plan: scope, timeline, and budget.
Build the MVP
A senior squad ships the first usable version in weeks. You see working software every sprint, not slide decks.
Iterate with Real Users
We instrument the product, ship fast, and adjust scope as you learn what your market actually wants.
Scale or Hand Off
When you raise or hire, the same team scales with you — or transitions ownership cleanly to your in-house engineers.
By the Numbers
A Track Record Founders Trust
8mo
Avg Time to MVP
from kickoff to first users
5.0
Clutch Rating
from startup founders
2008
Founded
by two engineer-founders
12yr
Longest Partnership
Mandara, started as a project
Case Studies
Startups We've Helped Go from Zero to One
Real engagements that started as a founder phone call and grew into long-term partnerships.
ElloMynt (USA)
An elite unit of 2 senior frontend architects helped this US startup launch a fully compliant digital asset platform for managing money and cryptocurrencies in one place — end-to-end in 8 months.
Mandara Capital (UK)
What started as a single project for a London hedge fund grew into a 12-year partnership: a custom risk management platform processing 30,000+ daily trades across three global offices.
Filestar AB (Sweden)
A Swedish SaaS startup engaged Roxosoft to help build its file conversion product and bring it to market. The team integrated seamlessly, shipped quality code, and earned a 5.0 Clutch review from the founder.
Client Testimonials
Trusted by Engineering Leaders Worldwide
Transparent, honest, and great problem-solvers
“I like the founders. We got along very well and I appreciate their honesty and efforts to solve some very difficult problems. They were very responsive. No fuzz.”
Niels Bosma
Founder & CEO, Filestar AB
Years of flawless partnership and delivery
“In the years we have been working together, everything has worked perfectly. They have a good will to solve tasks according to our wishes. The fact that we still have them says a lot.”
Joakim Erlandson
Former CEO, Börs Världen Nordic AB
Professional work ethic that builds trust
“I'm impressed with their professional and thorough work ethic, that makes it easy to trust them. They set realistic expectations and generally met them in a timely fashion.”
Anonymous
Publisher, Book & Data Publishing Company
Talk to Our Founders
Ready to Ship Your Startup's First Product?
Tell us about your idea, your market, and your runway. We'll come back with an honest plan — usually within a few days.
What Happens Next?
We Analyze Your Requirements
Our founders will personally review your project details and reach out to discuss your vision and goals.
NDA & Confidentiality
If needed, we sign a Non-Disclosure Agreement to ensure your ideas and data stay fully protected.
Project Proposal
We submit a comprehensive project proposal with timeline, milestones, and a transparent cost breakdown.
Why CTOs Choose Roxosoft
- Direct access to founders and tech leads — no middlemen
- 75%+ of our team are senior-level engineers
- Microsoft, AWS, and Google certified professionals
- Average client relationship: 5+ years
Offices in United States · Portugal · Spain · Senior data architects only.