Juan José Varela Valencia Tech Lead

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Tech Lead

Office Libations

Sep 2025 - Current (9 months)

- Designed and developed an internal React Native tool that opened new markets for the company, showcasing my expertise in mobile development and software architecture. - Led the development and maintenance of an iOS and Android application with Flutter, resulting in increased performance over 30% for internal contributors. - Introduced clean architecture principles, enhancing engineering team development performance by 25%. - Engineered the Agent Governance Protocol (AGP), driving a 500% increase in engineering throughput by optimizing task execution. - Additionally, I implemented organized and autonomous systems to manage and prioritize tasks effectively, utilizing decision matrices based on difficulty criteria and incorporating Human

Tech Lead

Siigo Colombia

Jan 2025 - Sep 2025 (9 months)

Boosted the team's sprint completion rate from 25% to 98% by optimizing workflows and improving internal communication. Enhanced technical implementation standards, resulting in an 80% decrease in reported bugs and end-user support issues. Streamlined team processes by reducing unnecessary meetings by 40%, increasing focus on core development tasks. Fostered a collaborative environment by reducing communication friction, directly contributing to improved performance metrics. As a Tech Lead, I provided hands-on execution and guidance across all technical aspects of projects, working across various roles to ensure comprehensive design, planning, and successful execution. This included extensive experience in full-stack development, leveraging

Technical Lead

RYZ Labs

Sep 2023 - Jan 2025 (1 year 5 months)

Designed and developed an internal Flutter tool that streamlined company workflows, boosting collaborator performance by 200%. Implemented analytics tracking using MongoDB within mobile apps, enabling efficient data retrieval for performance evaluation. Led the development of a new iOS and Android application with Flutter, from concept to launch, resulting in increased client retention. Introduced clean architecture principles, enhancing engineering team development performance by 75%. As a Tech Lead, I actively participated in all aspects of the projects, from design and development to testing and deployment. This hands-on involvement ensured that all technical decisions aligned with project goals and best practices. I also proactively man

Senior frontend mobile developer

Zubale

Jan 2022 - Sep 2023 (1 year 9 months)

Job title: Senior frontend mobile developer Job description: Developed and implemented a referral program with GraphQL integration, supported by a robust NestJS backend, leading to a substantial increase in user acquisition from 0.4% to 2.5%. Revamped the onboarding flow, significantly increasing user acquisition from 2.5% to 4.3%. Created a React JS application for managing referral campaigns with an underlying NestJS API, improving internal team productivity by 75%. Contributed to the development of a high-performing agile environment using SHAPE UP and SCRUM methodologies. • Assisted backend teams in the creation and maintenance of backend services deployed on AWS, leveraging AWS storage services. • Contributed to the creation and automa

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Mobile developer

Innovar Web

Jul 2017 - Jan 2022 (4 years 7 months)

Built a serverless React application with Firebase and MongoDB, automating delivery estimations and improving management efficiency by 45%. Redesigned user flows within iOS and Android apps, enhancing usability by 35%. Refactored API calls, reducing consumption by 80% and boosting app performance. Led a UI redesign initiative that resulted in a 35% increase in user satisfaction and a 20% increase in customer visits. Facilitated the adoption of SCRUM, leading to a 45% increase in team performance. • Designed PostgreSQL database structures to prevent overloads and ensure optimal data management practices, contributing to overall application stability and efficiency.

Juan José Varela Valencia

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Juan José Varela Valencia