Gabriel Bernal
Bogotá
Summary
Experienced with developing complex software systems and leading engineering teams to successful project completions. Utilizes expertise in both front-end and back-end technologies to drive innovation and efficiency. Track record of fostering collaborative environments and delivering reliable, high-performance solutions. As a leader, collaborate with interdisciplinary teams, share knowledge and experience, and promote continuous improvement and innovation.
Overview
13
13
years of professional experience
Work History
Staff Software Engineer
Minteo Stablecoin Ltd.
Bogotá, Colombia
08.2025 - Current
- Designed and implemented scalable blockchain solutions for stablecoin transactions.
- Led cross-functional teams in the design and implementation of decentralized finance solutions, enhancing user experience.
- Mentored junior engineers on blockchain best practices and software development techniques to improve team efficiency.
- Spearheaded performance optimization initiatives, resulting in reduced transaction processing times across platforms.
- Analyzed system architecture for scalability improvements, contributing to a robust infrastructure supporting rapid growth initiatives.
Technical Lead
Bilingual Child Care Training
Woodhaven, NY, United States
09.2024 - 08.2025
- Coordinated with cross-department teams like QA, DevOps, and Support to ensure seamless end-to-end software delivery process.
- Led a team of developers to successfully deliver high-quality software projects on time and within budget constraints.
- Evaluated and recommended new tools and technologies that resulted in increased development efficiency and up-to-date technical skillsets within the team.
- Orchestrated transition to Cloud, microservices an AI driven architecture, enabling faster feature deployment and greater system flexibility.
- Optimized resource allocation for projects, ensuring optimal use of team skills and minimizing project costs.
- Mentored junior developers through regular 1-on-1 meetings, providing guidance on best practices, coding standards, and career growth opportunities.
- Remote
Senior Software Engineer
MercadoLibre
Colombia
02.2021 - 07.2024
- Designed and implemented distributed, scalable applications using Java and Golang, focusing on minimal APIs, and high-availability microservices to optimize response times and simplify maintenance.
- Integrated facial recognition with AWS Rekognition for KYC authentication and content moderation, incorporating these flows into high-traffic systems to enhance accuracy and security in real time.
- Configured robust architectures using Event Sourcing in Java and Golang to maintain system state immutability and traceability in distributed environments.
- Leveraged multiple AWS services (such as S3, DynamoDB, and Lambda) to build a scalable, cost-effective infrastructure, optimizing data integration and storage in the system.
- Developed and maintained CI/CD pipelines to ensure fast, secure deployments in cloud environments, integrating AWS services to facilitate continuous delivery.
- Built and optimized backend services using Hexagonal Architecture principles, achieving reduced coupling and allowing independent evolution of components.
- Collaborated with data science and DevOps teams to enhance platform performance and scalability, maximizing the use of AWS tools for flexible and efficient implementations.
- Implemented integration and End-to-End (E2E) testing to ensure the proper functioning of services and verify complete flows in real-world scenarios.
- Remote
Software Life-cycle Administrator
SISTRAN
Colombia
07.2020 - 02.2021
- Managed and optimized the lifecycle of critical applications through advanced CI/CD practices, achieving fast, automated deployments to ensure service continuity.
- Implemented data lifecycle policies with AWS (such as automated retention and storage optimization in S3 Intelligent-Tiering), achieving efficient cost management and compliance.
- Designed and maintained microservices infrastructure focused on scalability and resilience, applying decoupling and modularity principles to facilitate deployment and maintenance.
- Monitored and audited distributed systems, improving traceability and optimizing response times to incidents.
- Contributed to the implementation of Hexagonal Architecture, enabling more agile and flexible development of critical services.
- Implemented integration and E2E tests to ensure quality at every stage of the development lifecycle.
Senior Software Design Engineer
SISTRAN
Colombia
01.2017 - 07.2020
- Designed and developed solutions for policy issuance and claims processing using .NET Core and C#, focusing on building high-availability microservices to handle large volumes of transactions reliably and securely.
- Created efficient RESTful APIs with ASP.NET Core, optimizing data exchange between services and improving system responsiveness and resource utilization.
- Leveraged Entity Framework Core for complex data handling and seamless integration with SQL Server, ensuring data consistency and high-performance querying for policy and claims records.
- Implemented a robust event-driven architecture using Azure Event Grid and Service Bus to handle policy issuance, payments, and claims notifications, ensuring real-time processing and high fault tolerance.
- Integrated Azure Logic Apps and Azure Functions for automated workflows, streamlining the process of premium collection, policy renewals, and claims updates while reducing manual intervention.
- Built CI/CD pipelines with Azure DevOps to automate deployment and testing, ensuring smooth releases and minimizing the risk of issues in production environments.
- Led the team in implementing unit, integration, and End-to-End (E2E) testing for critical processes, ensuring that new features met reliability and performance standards before deployment.
- Worked closely with business analysts and product managers to align technical solutions with business requirements for policy and claims management, ensuring that the platform met evolving regulatory and compliance standards.
- Enhanced the scalability and flexibility of core services through Hexagonal Architecture principles, allowing the seamless addition of new features, such as customer portal enhancements and real-time claim tracking, without impacting core business logic.
- Provided mentorship on best practices in C# and .NET Core, and promoted the adoption of secure coding practices, improving the overall code quality and maintainability across the team.
Semi Senior Software Engineer
SISTRAN
Colombia
01.2015 - 02.2017
- Developed distributed applications and microservices using .NET Core and C#, achieving scalability and performance improvements in high-demand systems.
- Implemented and optimized RESTful APIs with ASP.NET Core, ensuring efficient and secure service communication.
- Introduced functional programming principles to improve code modularity and predictability, facilitating efficient error handling and data flow.
- Used Entity Framework Core for database interactions, optimizing queries and ensuring optimal performance in data access.
- Improved CI/CD infrastructure with Azure DevOps tools, automating .NET service deployments and maintaining a continuous development flow.
- Developed and executed integration and E2E tests to validate application stability and reliability in production.
Junior Developer
SISTRAN
Colombia
05.2013 - 01.2015
- Developed and maintained back-end and front-end applications using .NET, focusing on scalability and performance optimization.
- Collaborated on microservices and event processing projects, gaining experience in event-driven architecture and modern system design principles.
- Participated in implementing CI/CD practices and optimizing processes, gaining experience in agile and collaborative development practices.
- Contributed to the development and maintenance of critical components in authentication systems, establishing a strong foundation in secure, scalable development practices.
- Executed integration and E2E tests to validate the proper functioning of services and the quality of delivered solutions.
Education
ITIL Foundation Certificate - IT Service Management
AXELOS
Bogotá, ColombiaMicrosoft Certified Professional - undefined
Microsoft Colombia
Bogotá, ColombiaTechnologist - Systems Analysis And Design, Computer Science And Programming
National Learning Service (SENA)
Bogotá, ColombiaSkills
- DDD, TDD and BDD approaches
- Event-driven architectures
- Functional and Reactive Programming
- Automation of Testing and Deployments
- Design Patterns
- Agile Methodologies (SCRUM, Kanban, Crystal Clear)
- CQRS
- SQL and NoSQL technologies (MongoDB, Redis, DynamoDB, DatomicDB, Transact-SQL, PL/SQL, etc)
- Common web frameworks (Django, SpringBoot, NET Core, NET Framework, Ring, EF Core, etc)
- Complex problem-solving and solutions-oriented mindset
- Proficient in Java, Kotlin, Go, Python, React, Redux, NodeJS, TS, Clojure, ELM, Elixir, Haskell, Scala, C#, VBNET, F#, C and others
- Immutable robust architectures
- Solid knowledge in SLDC/SLTC processes in CI/CD pipelines and containerized applications
- Design of zero downtime solutions oriented and distributed scalable systems
- Proficient in common cloud Platforms (AWS, GCP and Azure)
- Critical Thinking and Decision-Making Capabilities
- Quality-first mindset for oriented-automation tools
- Technical mentoring
- Team leadership
- Interpersonal relationship building
- Web application development
Accomplishments
- Business-based E2E tests component designed and implemented using Clojure.
- Solid practical knowledge acquired in building interpreters, improving business process readability to 300% using Clojure.
- Exhaustive property-based testing using Scala, ensuring 100% business process quality.
- Developed solid working knowledge of engineering, design and architecture as Technical Lead on team of 15.
Languages
Spanish
Native or Bilingual
English
Professional Working
Colombian Sign Language
Full Professional
References
- Walther PARRADO, SR Software Engineer, +57 314 431 4658, TrafficTech, Colombia
- Michael MARTINEZ, MercadoPlay Technical Lead, +57 300 611 1867, MercadoLibre, Colombia
- Óscar GOMEZ, MercadoLibre Software Manager, +57 311 561 5717, MercadoLibre, Colombia
Timeline
Staff Software Engineer
Minteo Stablecoin Ltd.
08.2025 - Current
Technical Lead
Bilingual Child Care Training
09.2024 - 08.2025
Senior Software Engineer
MercadoLibre
02.2021 - 07.2024
Software Life-cycle Administrator
SISTRAN
07.2020 - 02.2021
Senior Software Design Engineer
SISTRAN
01.2017 - 07.2020
Semi Senior Software Engineer
SISTRAN
01.2015 - 02.2017
Junior Developer
SISTRAN
05.2013 - 01.2015
Microsoft Certified Professional - undefined
Microsoft Colombia
Technologist - Systems Analysis And Design, Computer Science And Programming
National Learning Service (SENA)
ITIL Foundation Certificate - IT Service Management
AXELOS