David Steven Ardila Cardona - Ruby on Rails Developer

PROFESSIONAL SUMMARY

Skills

David is a skilled developer with extensive experience in Ruby on Rails, CI/CD, and AWS. He has defined deployment processes for multidisciplinary teams managing 80+ repositories, coordinated rapid response teams to resolve critical system issues, optimized critical jobs improving performance by up to 250%, and designed scalable data pipelines that power core applications and integrations.

Culture

He's highly collaborative, works well across teams, and brings ideas that align technical solutions with business goals. David shows ownership by contributing to product definitions and proposing scalable, low-maintenance solutions that elevate team performance through effective coordination.

Referral Notes

Adaptable, consistent in his growth, and comfortable working in English environments. He combines high technical rigor with effective team coordination to deliver reliable, maintainable systems. He's someone I trust to deliver impact and add value to any engineering team.

SKILLS

Programming:

Ruby, Python, JavaScript, Bash, SQL

Frameworks & Testing:

Ruby on Rails, React, Vue, RSpec

DevOps & Cloud:

CI/CD, GitHub Actions, Jenkins, Docker, Docker Compose, AWS (Lambda, S3, Secrets Manager, ECS, EC2, RDS), Airflow

Databases:

PostgreSQL, MongoDB, Redis, DuckDB

Practices & Tools:

Git (advanced org/admin), Code Review, Release Management, Modularization, Data Pipelines, API Integrations

AI Tools:

ChatGPT, GitHub Copilot, Cursor, Devin, Warp, N8N, MCP Servers

LANGUAGES

Spanish — Native

English — Professional Working Proficiency (B2)

PROFESSIONAL EXPERIENCE

ForUsAll — Software Engineer

Aug 2024 – Aug 2025 · Medellín, Colombia · Hybrid

Designed and implemented an Airflow-based architecture to feed a data lake and transform it into a data storage powering the main application and multiple integrations.
Refactored a critical +500-line job into 5 modular components, eliminating production errors and improving performance by ~250%.
Contributed to product definitions, proposing scalable, low-maintenance solutions aligned with business goals.

Skills Developed:

Airflow, Data Pipelines, AWS, Ruby on Rails, System Architecture, Performance Optimization, Product Strategy, Cross-functional Collaboration

ABATECH — Software Release Manager

Apr 2023 – Jul 2024 · Medellín, Colombia · Hybrid

Defined and implemented release and deployment processes for multidisciplinary teams, managing 80+ active repositories.
Worked across architectures: microfrontends, AWS Lambdas, monoliths, and microservices.
Coordinated frontend, backend, and DevOps teams to align release schedules, resolve blockers, and ensure smooth deployments.

Skills Developed:

Release Management, CI/CD, AWS Lambda, Microservices, Team Leadership, Process Optimization, Cross-team Coordination, DevOps

ABATECH — Back End Developer

Sep 2022 – Apr 2023 · Medellín, Colombia · Hybrid

Built and maintained backend services in Ruby on Rails, improving the reliability and performance of core features.
Coordinated Rapid Response Team (RRT) to quickly resolve bugs, alerts, and critical system issues across multiple applications.
Enhanced system observability and error handling, contributing to faster incident resolution.

Skills Developed:

Ruby on Rails, Debugging, Team Coordination, Incident Response, System Observability, Error Handling, Backend Development, Problem Solving

Cobelén — Web Developer (Apolo ERP)

Dec 2021 – Sep 2022 · Medellín, Colombia

Refactored a high-volume yearly accounting process to generate government reports, significantly improving performance and compliance.
Implemented a materialized view updated by scheduled jobs, enabling fast, reliable report generation in strict legal formats.
Maintained and enhanced ERP features with a focus on backend performance and data integrity.

Skills Developed:

ERP Development, Database Optimization, Materialized Views, Government Compliance, Performance Tuning, Data Integrity, Web Development, Process Automation

EDUCATION

Make It Real Camp

July 2018 – April 2019

Web Development Online Course

Completed an intensive online program focused on the Ruby on Rails framework, following the full-stack learning path provided by Make It Real. Developed a proactive approach to continuous learning, expanding technical knowledge and problem-solving skills.

Uniminuto

December 2012

Computer Technology & ICT4D

Began academic training in computer technology with a focus on information and communication technologies for development. Strengthened foundational knowledge in programming and web development, fostering an early commitment to becoming a professional developer.