Senior engineering consultancy · Vilnius

We hunt the hard problems in software.

IT Vilkai is a senior engineering consultancy. We take products from first idea to production — full-stack builds, AI and automation, computer vision, and security — plus the consulting, technical vetting, and support around them. For fintech, crypto, and fast-moving startups.

Senior-only
No handoff, no offshore
End-to-end
Idea to production
Fintech-grade
Reliability and security by default
Fintech Crypto & Web3 AI & LLMs Computer vision Cybersecurity Automation Startups Fintech Crypto & Web3 AI & LLMs Computer vision Cybersecurity Automation Startups

What we hunt.

// capabilities
01

Product engineering

Full-stack builds from idea to production — web platforms, APIs, internal tools, and the scripting and automation that hold everything together.

full-stackidea→prodautomation
02

AI, agents & automation

LLM-powered features, autonomous agents, and workflow automation — wired into real products with the evals and guardrails to run in production.

LLMsagentsRAG
03

Computer vision

Real-time video recognition on live camera feeds — multi-camera tracking, face and person re-identification, and event detection, deployed on edge hardware (NVIDIA Jetson) alongside existing NVR/CCTV.

multi-cameraface IDedge AI
04

Cybersecurity

Security reviews, threat modelling, and hardening — plus automated vulnerability discovery and smart-contract audits for web3.

auditssmart contractshardening
05

Consulting & architecture

Architecture reviews, technical due diligence, and rescuing stalled builds. An outside senior read you can act on.

architecturedue diligencerescue
06

Technical vetting

Independent technical interviews and candidate assessment — we screen your engineering hires so you bring on people who can actually do the work.

interviewsassessmenthiring

Selected work.

// selected
Fintech · SaaS

Counterproof

Chargeback-dispute automation for Shopify merchants — flat-fee, built around evidence quality per reason code.

CloudflareTypeScriptLLM
Computer vision

Gym AI

Real-time gym-floor monitoring — detects unattended equipment and attributes it to the right member across multiple live cameras.

multi-cameraface IDedge AI
Security

Orion

Continuous security scanning for web apps and smart contracts. Recon, static analysis, and exploit validation in one pipeline — every finding ships with a reproducible proof and a CVSS score, not a false positive.

web appssmart contractsexploit proofs
Marketplace

Smackway

A B2B marketplace connecting wholesale food suppliers with EU buyers — from first contact to closing the deal.

platformmarketplacefull-stack

How we work.

// approach
/01

Discover

A short, honest discovery. We map the real problem before writing a line of code.

/02

Shape

A lean plan with clear milestones — the smallest path to something real in production.

/03

Build

Senior engineers build in tight loops. You see working software early and often, never a black box.

/04

Hand off

Clean code, documentation, and knowledge transfer. It's yours to run — no lock-in.

/05

Support

Ongoing support and iteration when you want it — maintenance, monitoring, and new features as you grow.

Built by people who've shipped.

// why us

IT Vilkai runs on years of senior engineering — building payments in fintech, shipping on crypto L2s, and taking startups from idea to launch. You get production instincts and senior hands, with none of the learning on your dime.

Years building payment infrastructure — reliability and security as defaults, not afterthoughts.
Deep in crypto & web3 — from L2 protocols to production dapps.
A founder's mindset — we've built and run our own products, so we optimise for outcomes.
Full-stack, idea to production — plus the automation and support around it.
Where we've worked
First Horizon BankPaylikeLunarZircuitLympoAutoUncle

Have something worth building?

Tell us what you're working on. You'll get a straight answer from a senior engineer — not a sales funnel.