prove it before you build it.
We help startups validate business ideas with real, runnable code — so they can decide what to build, and what not to.
the trap
most startups build before they prove.
Founders build too much, too early. MVPs become full products by accident. Decisions are made without technical proof. Money and time are burned before clarity exists. It's not your fault — the industry pushes you to "ship fast." We push you to prove first.
Here's how it usually goes:
Scenario 1: The Over-Built MVP
You have a hypothesis: "SaaS teams need AI-powered code review." You scope 6 months of development, hire 2 engineers, and burn $150K. Four months in, customer interviews reveal nobody actually wants real-time feedback — they want post-commit analysis. You pivot, throw away 60% of the code, and restart. Two more months and $50K later, you're still not validating the core idea.
Scenario 2: The Architecture Nightmare
You're building a real-time data pipeline. Your CTO picks a tech stack that "scales." Six months later, you've spent $200K and the prototype is slow. You realize the bottleneck isn't the stack — it's your data model. You rebuild from scratch. Runway is gone.
Scenario 3: The Wrong Market
You're solving a problem you think exists. You build the product. You launch. Nobody cares. You were solving for the wrong customer. $300K and 8 months wasted.
These aren't rare. Statistically, 90% of startups fail. The biggest reason isn't bad ideas — it's bad execution on unvalidated assumptions.
// The expensive way
1. Hire team
2. Build full product (6 months)
3. Launch
4. Find out nobody wants it
// The codebefore way
1. Hypothesis
2. Prototype Sprint (2 weeks)
3. Validate with real code
4. Decide with evidence
the codebefore approach
code-before validation.
We use code as a decision-making tool. Not to build products — but to prove which products are worth building.
code as evidence
Real code proves ideas. Slides don't.
prototypes must run
If it doesn't run, it's not a prototype.
no slides without code
Every recommendation comes with working proof.
no commitment without proof
Decide to build only after you've seen it work.
services
validation, delivered as code.
We offer prototype sprints, build-ready blueprints, and technical validation add-ons.
prototype sprint
core offerA time-boxed sprint delivering a working prototype that proves or disproves a core business idea.
build-ready blueprint
A technical blueprint with proof-of-concept code, designed to enable confident full development.
technical validation add-ons
API feasibility spikes, AI/ML proofs-of-concept, performance tests, and integration validations.
how it works
from idea to evidence.
A focused process designed for speed, clarity, and evidence-based decisions.
idea intake & hypothesis
You share your idea. We frame it as a testable hypothesis with clear success criteria.
technical framing
We identify what needs to be built to prove or disprove the hypothesis — nothing more.
prototype implementation
Senior engineers build a minimal, runnable prototype. Real code, not mockups.
review & decision support
We walk through the results together. You leave with clarity on whether to proceed.
is this for you?
built for founders who want proof.
for you if...
- Early-stage startups testing new ideas
- Pre-MVP founders seeking clarity
- Technical founders who want external validation
- Teams needing proof, not polish
- Pre-seed / seed companies exploring directions
not for you if...
- Feature factories looking for extra hands
- Long-term outsourcing relationships
- Fully defined enterprise system builds
- Projects needing polish over proof
why codebefore
why us.
We are senior engineers, not salespeople. We don't hype. We validate.
Our goal is to give you the technical confidence to build a company — or the wisdom to pivot before you burn your runway.
0%
Hype
100%
Real Code
Senior Engineers Only
No juniors, no outsourcing
about us
the people behind the code.
We're engineers who've built systems that handle millions of transactions. We bring that experience to every validation engagement.
Founder & Lead Engineer
Engineering Manager at Tradu and a seasoned Software Architect with over 10 years of experience building high‑performance, scalable systems in fintech and gaming. He has held architecture and leadership roles at Trading 212, Nexo, and PokerStars — designing distributed systems that handle millions of transactions.
Stefan is passionate about Java, Spring Boot, Apache Kafka, and cloud‑native architectures on AWS. Beyond his day job, he co‑founded Hacker4e, an academy teaching kids to code through Scratch and web development — proof that great software starts with great fundamentals.
A member of the FinOps Foundation community and a regular on the tech conference circuit, Stefan shares hard‑won lessons on system design, event‑driven architecture, and engineering leadership.
writing
from the codebefore engineering blog.
Long-form case studies on the systems we've validated, shipped, and post-mortemed. Check out our technical validation case studies to see real examples.
trading systems
why my basis trading bot hasn't blown up my account yet
A design post-mortem on a delta-neutral crypto bot. 520 tests in. What the plumbing actually looks like when real money is on the line.
read case studyinfrastructure
7 WordPress sites on one $5 VPS with CloudPanel
How codebefore replaced a sprawling Docker-compose setup with a single Contabo box — cheaper, calmer, and 80% idle.
read case studyperformance
achieving microsecond latencies with Java
Processing 10 GB/s of market data in the JVM. What Stefan learned about GC, off-heap memory, and where the real bottlenecks hide.
read case study