Recommended expert

Cristian Miron

Ruby on Rails Engineer

Cristian Miron
Cluj-Napoca, Romania

Experience

Jul 2022 - Present
3 years 8 months

Ruby on Rails Engineer

Full Health Medical

  • Developed and refined healthcare-focused features using Ruby and Ruby on Rails, improving medical product accessibility workflows used by more than 23 internal and external stakeholders.
  • Refactored legacy modules with heavy conditional logic by applying object-oriented patterns in Ruby, reducing code complexity by approximately 31 percent while improving long-term maintainability.
  • Led UI modernization efforts using Bootstrap and View Components, resulting in a 36 percent decrease in reported usability issues across 4 major application sections.
  • Maintained over 92 percent automated test coverage with RSpec, proactively identifying test gaps and preventing regressions across monthly release cycles.
  • Reviewed pull requests with a strong focus on code smells, anti-patterns, and test quality, contributing to faster onboarding of 2 new engineers into the codebase.
  • Integrated test execution into CI pipelines using GitHub Actions and Docker, reducing failed production deployments by 27 percent over a 12-month period.
  • Collaborated with product and QA teams to document defects and technical debt, helping prioritize remediation work during 6 consecutive sprint planning cycles.
  • Acted as a technical reference point for Ruby best practices, mentoring junior developers on idiomatic Ruby and effective debugging techniques.
Mar 2021 - Jul 2022
1 year 5 months

Ruby on Rails Full Stack Developer

Pentalog

  • Owned end-to-end development using Ruby on Rails as the sole engineer on the project, handling development, QA, deployment, and production support independently.
  • Designed and integrated multiple external content APIs using Ruby and REST, enabling reliable delivery of media assets to over 40 geographically distributed digital screens.
  • Processed and validated diverse data formats including XML, RSS, MP4, and JPG, implementing custom parsers that reduced malformed payload incidents by 34 percent.
  • Implemented automated regression tests with RSpec, ensuring stable releases despite handling an average of 18 production incidents per quarter.
  • Maintained Linux-based servers and CI workflows using Git and shell tooling, improving deployment consistency across staging and production environments.
  • Collaborated directly with non-technical clients to clarify requirements and adjust priorities, successfully meeting 95 percent of delivery deadlines across 7 major milestones.
  • Documented system behavior, edge cases, and known limitations, creating internal references that reduced future support investigation time by 29 percent.
  • Balanced rapid feature delivery with long-term code quality, performing incremental refactoring to prevent technical debt accumulation.
Sep 2020 - Jun 2022
1 year 10 months
Cluj-Napoca, Romania

Lab Teaching Assistant

Technical University of Cluj-Napoca

  • Guided over 60 students through practical assignments in web development and UI design, emphasizing structured problem-solving and clean code principles.
  • Reviewed student projects with a focus on architecture, testing basics, and debugging strategies, improving overall lab completion rates by 22 percent.
  • Worked closely with faculty members to modernize lab materials, incorporating contemporary development tools and realistic project constraints.
Aug 2019 - Mar 2021
1 year 8 months

Ruby on Rails Full Stack Developer

ArtSoft Consult

  • Developed and maintained production-grade applications using Ruby on Rails, contributing to API-driven features consumed by both web and mobile clients.
  • Collaborated within a distributed Agile team of more than 40 members, participating in sprint planning, backlog refinement, and retrospective sessions.
  • Built hybrid mobile applications using Cordova while ensuring backend compatibility and consistent data synchronization.
  • Used GitHub, Jira, and Confluence for coordinated delivery, reducing merge conflicts and improving sprint predictability over successive releases.
Jul 2019 - Aug 2019
2 months

Internship – Ruby on Rails Full Stack Developer

  • Accelerated onboarding into professional Ruby on Rails workflows, contributing meaningful code within the first 3 weeks of the internship.
  • Gained hands-on exposure to collaborative development practices, version control, and structured task execution in a production environment.
Jul 2018 - Aug 2018
2 months

Java Software Developer

iQuest Group

  • Developed a three-tier application using Java and Spring Boot, integrating multiple external data sources into a unified SQL-backed system.
  • Implemented DAO patterns and API response parsing logic, ensuring reliable data filtering and presentation for downstream consumers.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Healthcare (3.5 years), Information Technology (3 years), and Education (2 years).

Healthcare
Information Technology
Education

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (6.5 years), Product Development (5 years), Operations (1.5 years), and Quality Assurance (1.5 years).

Information Technology
Product Development
Operations
Quality Assurance

Summary

Results-driven Software Engineer with over 5 years of hands-on experience building, testing, and refining Ruby-based systems across healthcare, media distribution, and SaaS platforms. Strong background in Ruby on Rails development with a consistent focus on code quality, test coverage, and long-term maintainability. Experienced in reviewing complex codebases, identifying design flaws, and improving reliability through structured refactoring and automated testing. Actively contributed to projects involving data processing, API integrations, and CI-driven delivery pipelines in distributed teams. Comfortable collaborating with product, QA, and research-focused stakeholders on experimental and evolving requirements. Well-suited for AI-focused environments that demand precision, adaptability, and deep understanding of real-world software behavior.

Skills

  • Backend - Ruby, Ruby On Rails, Object-oriented Design, Metaprogramming, Rest Apis, Background Jobs, Service Objects, Mvc Architecture, Api Integrations
  • Testing & Quality - Rspec, Minitest, Test Coverage Analysis, Code Review, Refactoring, Debugging, Profiling, Ci Test Pipelines, Defect Documentation
  • Devops & Tooling - Docker, Github Actions, Gitlab Ci, Jenkins, Linux Cli, Shell Scripting, Automated Deployments, Environment Configuration
  • Databases - Postgresql, Mysql, Sql Optimization, Schema Design, Data Migrations, Query Profiling, Indexing Strategies
  • Frontend & Ui - Html, Css, Bootstrap, View Components, Javascript, Ui Refactoring, Accessibility Improvements
  • Collaboration & Process - Git, Agile Scrum, Jira, Confluence, Technical Documentation, Remote Collaboration, Cross-team Reviews

Languages

Romanian
Native
English
Advanced

Education

Oct 2020 - Jun 2022

Technical University of Cluj-Napoca

MS in Computer Software Engineering · Computer Software Engineering · Cluj-Napoca, Romania

Oct 2016 - Jun 2020

Technical University of Cluj-Napoca

BS in Computer Science · Computer Science · Cluj-Napoca, Romania

Profile

Created
Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Frequently asked questions

Do you have questions? Here you can find further information.

Where is Cristian based?

Cristian is based in Cluj-Napoca, Romania.

What languages does Cristian speak?

Cristian speaks the following languages: Romanian (Native), English (Advanced).

How many years of experience does Cristian have?

Cristian has at least 7 years of experience. During this time, Cristian has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 1 year and 1 month. Note that Cristian may not have shared all experience and actually has more experience.

What roles would Cristian be best suited for?

Based on recent experience, Cristian would be well-suited for roles such as: Ruby on Rails Engineer, Ruby on Rails Full Stack Developer, Lab Teaching Assistant.

What is Cristian's latest experience?

Cristian's most recent position is Ruby on Rails Engineer at Full Health Medical.

What companies has Cristian worked for in recent years?

In recent years, Cristian has worked for Full Health Medical, Pentalog, Technical University of Cluj-Napoca, and ArtSoft Consult.

Which industries is Cristian most experienced in?

Cristian is most experienced in industries like Healthcare, Information Technology (IT), and Education.

Which business areas is Cristian most experienced in?

Cristian is most experienced in business areas like Information Technology (IT), Product Development, and Operations. Cristian also has some experience in Quality Assurance (QA).

Which industries has Cristian worked in recently?

Cristian has recently worked in industries like Healthcare, Information Technology (IT), and Education.

Which business areas has Cristian worked in recently?

Cristian has recently worked in business areas like Information Technology (IT), Product Development, and Operations.

What is Cristian's education?

Cristian holds a Master in Computer Software Engineering from Technical University of Cluj-Napoca and a Bachelor in Computer Science from Technical University of Cluj-Napoca.

What is the availability of Cristian?

Cristian is immediately available full-time for suitable projects.

What is the rate of Cristian?

Cristian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Cristian?

To hire Cristian, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Market avg: 500-660 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.