Kristóf Kovács-Egri
CEO & Senior Software Engineer
Full-stack product engineering: React, Next.js, Node.js
About QuartzDevs
QuartzDevs is a software development company that provides dedicated teams of senior software engineers from Hungary and Romania. It integrates full-stack engineers into existing product and engineering teams, with a first commit typically within 1–2 weeks, and serves clients worldwide including Volvo, Save the Children and GoStudent.
How we're built
A senior-only model designed so clients get consistent ownership and quality, not a rotating pool of anonymous resources.
Two-country, senior-only
Senior and medior engineers only, no offshore delivery
Based in Hungary & Romania
Hungary & Romania based. EU time zones with strong overlap for European and US teams.
A stable core, ready to scale
~10-person core engineering team, with +10-15 senior engineers we can add quickly from a long-term, pre-vetted senior contractor network.
Client-facing engineers
Strong English, client-facing product engineers
What we hold ourselves to
The standards that make senior engineers safe to embed in your team and ready for enterprise due diligence.
Senior-only delivery
Every engineer is senior or medior. No juniors billed at senior rates, no offshore hand-offs.
Client-facing communication
Engineers who join your standups, write clearly, and can be trusted in front of your stakeholders.
Clear project ownership
A named point of contact who owns delivery, not a rotating pool of anonymous resources.
Transparent timelines
Honest estimates, visible progress, and early warning when something is at risk.
Structured QA
Testing built into the workflow, not bolted on at the end.
GitHub-based workflow
Pull requests, code reviews and documentation in your repositories and tooling.
Documentation & handover
We leave systems maintainable, documented and easy to hand back or extend.
GDPR-conscious EU delivery
EU-based teams, ready for due diligence and compliance review.
Bővítse csapatát dedikált senior mérnökökkel
Foglaljon ingyenes 30 perces konzultációt, hogy megbeszéljük a fejlesztési igényeit. Segítünk megtalálni a megfelelő dedikált csapatot vagy csapatbővítést hosszú távra.
Első commit 1–2 héten belül
Egy dedikált senior mérnök első commitja hetek, nem hónapok alatt
Mérnökök, akik maradnak
Hosszú távú együttműködés és egyértelmű felelősség, nem forgóajtó
Bizonyított tapasztalat
Olyan cégek bíznak bennünk, mint a Volvo, a Save the Children és a GoStudent
Kristóf Kovács-Egri 
Ügyvezető és senior szoftvermérnök
Senior szoftvermérnök, aki globális cégeknek épít termékeket