Shotgun Debugging
Senior Ruby Architect
Salary / Daily rate
Cluj-Napoca, Romania
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Ruby Architect with 10+ years of full-stack development and cybersecurity expertise. Specialized in microservices, penetration testing, and AI-powered platforms - optimized systems at global companies like Transcenda and Cobalt. I deliver secure, scalable Ruby/Rails solutions with proven performance improvements and vulnerability mitigation strategies.
Work experience
Senior Ruby Engineer
Transcenda
Nov 2024 - May 2025
7 months
Developing and optimizing microservices for a global leader in cloud-based solutions that power clinical research. Utilizing Docker and Amazon ECS to containerize and orchestrate deployments in a secure, highly regulated environment. I leverage feature flagging with Unleash to roll out new functionality, and partner with SRE teams for monitoring.
Cobalt
Nov 2019 - May 2025
5 years 7 months
Senior Penetration Tester
Dec 2024 - May 2025
6 months
Penetration Tester
Nov 2019 - Dec 2024
5 years 2 months
My development background (C/C++, Ruby, Ember, React, devops) proved to be a good foundation for figuring out the internals of applications and subsequently mapping the attack surface. I enjoy the elegance and simplicity of working with streams of data so I often end up automating and writing my own scripts in the terminal. My favourite bugs to find are the ones that appear at the boundaries of systems; misbehaving inputs, request smuggling, interfering with sequences of requests (exploiting load balancers & proxies, WAFs), exploiting parser vs requester inconsistencies, DoS and timing attacks.
Senior Software Engineer, AI Integration
OnTheGoSystems
Dec 2023 - Oct 2024
11 months
Remote, OR 97458, USA
Contributed to the development of an automated localization platform, using Ruby on Rails and TypeScript-flavored React (Redux). Implemented security best practices, ensuring robust API protection against common vulnerabilities. Optimized system performance by parallelizing asynchronous jobs, significantly reducing translation times. Designed workflows for curating and applying industry-specific glossaries to translation projects, supporting technical and non-technical teams. Conducted standardized conformance tests on file parsers to ensure reliability in production.
Full-stack Developer
Camera
Jan 2020 - Dec 2020
1 year
Remote, OR 97458, USA
Covered all technical aspects of the product lifecycle, from its initial design through development and deployment. Maintained a production environment using AWS.
Full stack web developer
Campwire
Feb 2015 - Oct 2018
3 years 9 months
Remote, OR 97458, USA
Campwire is an online course platform. My work involved maintenance, various improvements to the billing model, adding new functionality and integration with a local payment processor.
Full stack web developer
RubyPine
May 2013 - Oct 2018
5 years 6 months
Ruby on Rails on the backend, EmberJS for rich client apps, technical support, security reports triage and some devops.
Software Developer
GovIT Hub
Oct 2016 - Jan 2017
4 months
Volunteer at a Government program aimed at implementing modern open source solutions for public institutions.
C/C++ software developer
Fortech
Feb 2012 - May 2013
1 year 4 months
T-System's MEDINA is a universal pre- and postprocessor that supports current CAD formats and finite element (FE) analysis programs. My work involved implementation and maintenance of features related to processing complex CAD geometries and large finite element models; integrating client specific plug-ins and migrating parts of the graphics engine (Fortran) to C/C++.
Affiliate marketer
MoreNiche
Feb 2008 - Oct 2010
2 years 9 months
Landing pages, content creation, link farming, SEO, browser automation.
Education
Vrije Universiteit Amsterdam (VU Amsterdam)
Master of Science (MSc) (exchange student)
2011 - 2012
1 year 1 month
Universitatea „Petru Maior” din Târgu-Mureș
Engineer
2007 - 2011
4 years 1 month