Vedran Marcetic

Vedran Marcetic


I am an experienced back-end developer, DevOps engineer, and server architect. I spend most of my time working with Ruby (on Rails), but I’m also experienced with many other languages (Java, PHP, Javascript and more).

I have experience working with entrepreneurs who are just trying to get their foot in the market, as well as with large companies helping them improve and maintain massive, complex systems.

Specialties: back-end, API development, DevOps, server architecture, scaling, security

Preferred tech: Ruby on Rails, Java, PostgreSQL, Elastic, Docker, AWS, etc.


Owner, Consultant
2017 - Present

Code Tree is a two-person web development and UX design team specialized in mapping out, designing, and delivering complex custom-built web applications on time.

Our team has worked with companies and entrepreneurs from all over the world. New York City, Los Angeles, Boston, Berlin, Munich, Johannesburg, and more. From early stage startups that just received their first investment, to globally established companies worth hundreds of millions of dollars.

Full-stack development and maintenance
2019 - Present

Roomsie is an online marketplace that connects hosts with interns, students, and recent graduates looking for medium-term housing in Washington, D.C.

I was hired to maintain an existing profitable product, and add new features when necessary.

Back-end architect, Consultant
2016 - 2019

Five is the leading Croatian full-service agency for web and mobile development. I’ve joined Five as an independent consultant to work with multiple large US based companies.

I can’t disclose much about this engagement since most of what I did is under NDA.

Tech: Ruby on Rails

Development and server architecture consultant
2015 - 2017

RaceChip manufactures and sells high-performance engine tuning chips for all car makes and models, resulting in less fuel consumption and up to 30% more horsepower. I worked with this company to help them develop an imporatant internal application.

I can’t disclose much about this engagement since most of what I did is under NDA.

Tech: Java, PostgreSQL, Git, AWS

Co-founder, back-end developer, server architect
2014 - Present

Read case study

A passion project I’ve been working on in my spare time with two other colleagues. It's a well designed movie aggregator with ratings from IMDB, Rotten Tomatoes, and Metacritic — a go-to place for finding a movie to watch.

It was featured on Hacker News and Product Hunt front pages for over a day, and is currently being used by more than 100,000 people every month.

Some of the things I did:

Tech: Ruby on Rails, PostgreSQL, Elastic, Redis, Capistrano, Linode

Back-end developer, server architect
2014 - 2015

Two Margins wants to change the way financial information is analyzed. It uses the wisdom of the crowd to help users gain financial insight and advantage. It allows financial experts to annotate and comment U.S. Securities and Exchange Commission issued reports and other financial/political documents.

After experimenting with a couple of prototypes we built the project from scratch. I was responsible for developing and deploying the back-end and setting up the servers.

Some of the things I did:

Tech: Ruby on Rails, PostgreSQL, Nokogiri, Linode

Back-end consultant
2013 - 2014

Bib + Tuck is a highly curated community of shoppable personal closets based in New York. II worked on a complete project-wide redesign as a back-end consultant.

Tech: Ruby on Rails, Javascript, PostgreSQL, Capistrano

Back-end developer, DevOps engineer, consultant
2012 - 2016

Trifolium is a small family-owned development and design studio located in Zagreb, Croatia.

Some of the things I did:

Tech: Ruby on Rails, Java (Spring), Javascript, PostgreSQL, Linode, AWS

Community Engagements

Skills and tools


Technical school Ruder Boskovic
Electrotechnics and computer science
2003 - 2007