Devalon is a development and consulting studio. We build, maintain, and scale software and AI solutions for individuals, startups, and enterprises.
Got an idea? Whether it’s great, rough around the edges, or completely out there, bring it to us. We’ll give you an honest take on what it would take to make it real.
Mobile appAPIWebDatabaseAICloudNo matter where your idea is right now, we’ll help you shape it, build it, launch it, and keep it running.
Web apps, platforms, APIs, internal tools — built from scratch around how you actually work, not around a template.
Automations, LLM features, and integrations that plug AI into your real workflows — solving problems, not chasing buzzwords.
We keep software alive: bug fixes, updates, monitoring, and a human who answers when something breaks.
Mobile and desktop apps that feel native and ship properly — from the first build to the app stores and beyond.
From a one-person idea to an enterprise roadmap — the work changes, the standard doesn't.
Solo founders, local shops, small agencies — anyone who needs real software without the agency overhead. A website, a booking tool, a little app that saves you hours a week. No project is too small to be done properly.
We build your product, keep it running, and integrate whatever your stack needs next — payments, AI, third-party APIs. You get a technical partner who has shipped with startups before, not a vendor you have to manage.
The serious work: scaling systems, modernising legacy code, and custom solutions that have to hold up under real load. Clear scope, honest timelines, and code your own team can live with afterwards.
Dimitry BizgaFounder @ Synthax Codes“Having worked closely with Marius on multiple projects in the same group, I can confidently say he is an outstanding Software Engineer. He took full ownership of our core backend systems, built stable architectures from scratch, and resolved complex infrastructure bottlenecks with great efficiency. Marius stands out because he delivers exactly what the project requires, turning complex requirements into rock-solid, durable, and highly optimized software that runs flawlessly in production.”
Inesa DitaReal Estate Agent & Coach for Women · USA“Working with Marius was effortless from day one. He understood what I needed before I could fully explain it, kept me in the loop at every step, and delivered a result far more polished than I expected. I'd trust him with any project.”
Red Core ConcreteConcrete contractor · New England, USA“I've worked with Marius Trelea on multiple projects, and every experience has been excellent. He built our company website exactly the way we wanted and was always responsive, professional, and easy to communicate with throughout the process. Everything was completed on time, and the final result exceeded our expectations.”
Thomas Bach PetersenCo-Founder & CTO @ 2ai“Add here later — placeholder.”
2Marketing.aiMarketing & AI SaaS · Denmark“Add here later — placeholder.”
Vasile BoroganCEO @ Premier Estate“I highly recommend Marius as a Software Engineer. We collaborated on our internal applications, and he successfully managed both front-end and back-end aspects, handling all engineering challenges with great efficiency. What makes Marius stand out is his strong technical expertise combined with a client-first mindset—he has a remarkable ability to understand exactly what the client wants and translate it into rock-solid, durable, and highly optimized software.”
Palazzo AestheticsPhytoaesthetics & phytotherapy clinic · Chișinău, Moldova“I had a great experience working with Marius Trelea on our clinic’s website. From the beginning, he was easy to communicate with, understood what we were looking for, and brought our ideas to life better than we expected. He was reliable throughout the project, quick to make adjustments when needed, and kept everything moving without any unnecessary back and forth. The website turned out great, and we’ve been very happy with the result. I’d definitely recommend working with Marius.”
Dimitry BizgaFounder @ Synthax Codes“Having worked closely with Marius on multiple projects in the same group, I can confidently say he is an outstanding Software Engineer. He took full ownership of our core backend systems, built stable architectures from scratch, and resolved complex infrastructure bottlenecks with great efficiency. Marius stands out because he delivers exactly what the project requires, turning complex requirements into rock-solid, durable, and highly optimized software that runs flawlessly in production.”
Inesa DitaReal Estate Agent & Coach for Women · USA“Working with Marius was effortless from day one. He understood what I needed before I could fully explain it, kept me in the loop at every step, and delivered a result far more polished than I expected. I'd trust him with any project.”
Red Core ConcreteConcrete contractor · New England, USA“I've worked with Marius Trelea on multiple projects, and every experience has been excellent. He built our company website exactly the way we wanted and was always responsive, professional, and easy to communicate with throughout the process. Everything was completed on time, and the final result exceeded our expectations.”
Thomas Bach PetersenCo-Founder & CTO @ 2ai“Add here later — placeholder.”
2Marketing.aiMarketing & AI SaaS · Denmark“Add here later — placeholder.”
Vasile BoroganCEO @ Premier Estate“I highly recommend Marius as a Software Engineer. We collaborated on our internal applications, and he successfully managed both front-end and back-end aspects, handling all engineering challenges with great efficiency. What makes Marius stand out is his strong technical expertise combined with a client-first mindset—he has a remarkable ability to understand exactly what the client wants and translate it into rock-solid, durable, and highly optimized software.”
Palazzo AestheticsPhytoaesthetics & phytotherapy clinic · Chișinău, Moldova“I had a great experience working with Marius Trelea on our clinic’s website. From the beginning, he was easy to communicate with, understood what we were looking for, and brought our ideas to life better than we expected. He was reliable throughout the project, quick to make adjustments when needed, and kept everything moving without any unnecessary back and forth. The website turned out great, and we’ve been very happy with the result. I’d definitely recommend working with Marius.”
We build on proven, industry-standard technology used in production by companies worldwide — so your product ships on schedule, scales reliably, and stays maintainable by any engineering team. No experimental dependencies, no vendor lock-in. And when your product needs AI, we hold it to the same standard: production-grade features on OpenAI and Anthropic, not demos.
Battle-tested
Trusted by teams worldwide.
Built to scale
From MVP to millions of users.
No lock-in
Any developer can take over.
AI in production
LLM features that ship, not demos.
✔ Scaffolding Next.js + React + TypeScript✔ Wiring Node.js & Python services✔ Connecting OpenAI + Anthropic✔ Provisioning PostgreSQL on AWS✔ Docker, CI/CD & monitoring readyℹ 0 exotic bets · 0 lock-inReal projects, live on the internet — from Denmark to the USA to Moldova and Romania, in five languages. Click through and see for yourself; we'll gladly tell you the story behind any of them.
AI SaaS · Denmark
A multi-network SaaS platform that automates campaign creation, social scheduling, and AI features across Google Ads, Meta, LinkedIn, and Reddit from a unified backend.
Web app · USA
A full-stack property management progressive web app designed for daily multi-device tracking and maintenance management.
Energy · 7 brands
A multi-tenant web ecosystem powering seven distinct solar energy and battery brands from a single centralized management architecture.
Real estate · Chișinău
A comprehensive tri-lingual real estate catalogue and lead generation portal for properties, land, and mortgage guidance in Chișinău.
Real estate · Chișinău
A modern real estate marketplace showcasing verified property deals, developer offers, and rental listings across Chișinău.
Investments · Romania
A high-converting investor relations platform designed to build immediate trust for commercial real estate and business deals in Romania.
Logistics · EU
A corporate digital platform for an international Bucharest logistics firm specializing in oversized cargo, permits, and EU transport networks.
Local business · USA
A high-converting web platform and project gallery built for a specialized concrete and controlled demolition contractor in New England.
Wellness · Chișinău
An elegant, multi-lingual digital storefront and online appointment portal for a specialized physiotherapy and phytotherapy clinic in Chișinău.
You?
This spot is reserved for the idea you haven't sent us yet — good, bad, or delusional. Tell us what you want to build and we'll tell you honestly what it takes.
Trusted by clients across four countries
Share a few details about your project and we'll get back to you with an honest assessment — typically within one business day.