Trading systems & automation
Signal pipelines, execution bridges, bots and back-office for desks that can't miss a fill. Latency and reliability are the spec, not an afterthought.
- Algo execution
- Market data
- Risk controls
Software studio · Kraków, EU
Engineering that compounds.
A senior team building software across the whole spectrum — specialized in trading systems, and shipping SaaS for our clients and for ourselves. From your first request we design, build and run it live, then expose it to the right audience through creator partners who reach 1M+.
- 10+ yrs senior
- 1M+ creator reach
- Request
- Built & shipped— tested, in production
- Live in the cloud— autoscaled, monitored
- Promoted— to the right audience
What we do
One team for the whole stack.
Trading-grade engineering across every layer — from the first request to working software, live in the cloud and in front of the right audience.
Applied AI
We understand AI and put it to work only where it genuinely helps — the right approach in the right place, integrated and measured, never bolted on for show.
- LLMs
- Automation
- Integration
Web & product engineering
From a sharp marketing site to a full SaaS — designed, built and shipped by people who've done it for a decade. Fast, accessible, measurable.
- Any framework
- Design systems
- SaaS
Cloud & DevOps
Infrastructure that scales quietly: infrastructure-as-code, CI/CD, observability and a cloud bill you can actually read.
- AWS
- Terraform
- CI/CD
Blockchain & smart contracts
On-chain logic, written deliberately and reviewed hard. Contracts, integrations and the off-chain plumbing that makes them usable.
- Solidity
- Move
- Audits
Backend & legacy modernization
APIs and data layers built to last — and tired systems brought back to life without betting the company on a full rewrite.
- APIs
- Data
- Migrations
Our own SaaS
VexBinder
From signal to fill in milliseconds.
Our automated trading toolkit routes TradingView alerts straight to MetaTrader — multi-account, sub-200ms, with built-in analytics and no-code automation. It's the proof of what we ship for ourselves.
Visit vexbinder.com- 100M+
- signals tested
- 35+
- brokers tested
- <200ms
- median e2e latency
Creator partnerships
Built it? Now put it in front of millions.
Beyond engineering, we work hand in hand with creators whose audiences add up to 1M+. When your product is ready we don't just hand it over — we help you get it in front of people who actually convert.
1M+Partner reach
Creator-ledLaunch campaigns
End-to-endBuild to audience
How we work
Discovery to clients, in the open.
A deliberate sequence with the risks named up front. You always know what's shipping next.
- 01
Discover
We map the problem, the constraints and the economics before a line of code.
- 02
Design & build
A plan you can read, then senior engineers ship it in tight loops — working software every week.
- 03
Launch & scale
We take it live, harden and instrument it, and autoscale it to match real demand.
- 04
Promote
Then we help expose it to the right audience — with creator partners who reach millions.
The studio
A senior team that takes on the hard problems.
3xb is a Kraków-based studio of senior engineers — 10+ years each, across trading desks, venture-backed startups and enterprise systems.
We're modern, young and deliberately broad. The problems worth solving rarely sit neatly in one stack, so we don't either — we bring the right people to the right layer and ship.
Kraków, Poland · EU
- 10+ yrs
- Avg. experience
- Kraków
- EU-based
- Full-spectrum
- One team
Let's talk
Let's build something that scales.
Tell us what you're working on. We reply within one business day.