Open to opportunities

Hernan Rengel Chavez

@hernanrengelchavez

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Full Stack Software Engineer and Team Lead who builds scalable, high-performance products and mentors teams.

Bolivia

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What I'm looking for

I’m looking for a team where I can lead engineering decisions, mentor developers, and build scalable full-stack systems—improving production performance with modern frontend/backend practices, cloud automation, and observability.

I’m a Full Stack Software Engineer and Team Lead with extensive experience across backend, frontend, cloud, automation, and AI-driven development. I focus on designing scalable architectures and delivering high-performance applications that hold up in production.

Most recently, I lead cross-functional engineering efforts—setting architectural decisions and code quality standards while overseeing frontend and system-level design. I mentor engineers through technical reviews and best practices, especially around React, Next.js, API design, and distributed systems.

Across my recent roles at AssureSoft and beyond, I’ve delivered measurable improvements: building product features with React and Redux, implementing scalable backend APIs in PHP/MySQL to reduce query latency, and contributing to reliable microservices implementations. I also work closely with UX/UI teams to deliver pixel-perfect, accessible interfaces and participate in deployments, monitoring, and high-availability optimization.

My background also includes integrating third-party payment and financial APIs, modernizing legacy systems to reduce technical debt, and building monitoring dashboards with ELK Stack and Grafana. I bring practical cloud and DevOps strength (AWS/GCP, Docker, Kubernetes, CI/CD, Terraform, Jenkins) and use AI code generation tools like Cursor and Windsurf to accelerate development.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer Team Lead

Current

AssureSoft

May 2024 - Present (2 years 1 month)

Led a cross-functional engineering team and set architecture and code-quality standards across frontend and system design. Mentored engineers and drove performance improvements in production through technical reviews and roadmap collaboration.

React Next.js API Design Distributed Systems Microservices Architecture Code Review Performance Optimization Technical Mentoring

Current

Software Engineer

Current

AssureSoft

Apr 2023 - Present (3 years 2 months)

Delivered product features with React/Redux and built scalable PHP/MySQL backend APIs, improving usability and system performance. Contributed to microservices design, supported high-availability deployments, and collaborated with UX to ship accessible UI.

React Redux PHP MySQL API Development Microservices Performance Monitoring Accessibility

Software Engineer

RoadSync

Sep 2022 - Mar 2023 (6 months)

Integrated third-party payments/collections APIs and maintained Python/Flask backend services. Improved reliability via debugging, testing, and performance tuning while optimizing cloud deployment costs.

Python Flask Debugging Testing Performance Tuning Cloud Cost Optimization

Software Engineer

Morf3D

Mar 2022 - Sep 2022 (6 months)

Built ERP features with React/Redux-Saga and Django/MySQL, modernizing legacy systems to reduce technical debt. Implemented ELK and Grafana monitoring dashboards and provided technical leadership aligned with project management.

React Redux Saga Django MySQL ELK Stack Grafana Legacy System Modernization Technical Leadership

Cloud Engineer

Jalasoft

Aug 2021 - Sep 2022 (1 year 1 month)

Monitored infrastructure and application performance to identify bottlenecks and resolve deployment issues. Designed cloud improvement strategies with architects and taught logging/monitoring practices.

Infrastructure Monitoring Cloud Architecture Logging System Reliability

Software Engineer

Medzoomer

Sep 2021 - Mar 2022 (6 months)

Built and optimized Android/iOS applications for controlled medication delivery, improving reliability and UI/UX. Collaborated with cross-team stakeholders to deliver product features.

Android Development iOS Development Reliability Engineering Cross Functional Collaboration

Software Engineer

Kruger Corp

Mar 2020 - Oct 2021 (1 year 7 months)

Developed native and hybrid mobile applications and built web solutions with React and Angular. Refactored and redesigned mobile apps to modern standards and led deployments and long-term support.

React Angular Native Mobile Development Hybrid Mobile Development Deployment Management

Software Engineer

BoxTribe

Dec 2019 - Apr 2020 (4 months)

Developed an SMS/email messaging engine in Node.js and built multi-platform React Native applications. Redesigned native apps using Swift/Java and supported ongoing releases.

Swift Java React Native Native App Redesign

Software Engineer

CompleteTransoft

Mar 2017 - Jan 2019 (1 year 10 months)

Built a decision-making engine for customizable client workflows with Python/Django and Spring, and delivered an Angular frontend. Produced enterprise software for high-volume clients and supported reliable backend delivery.

Python Django Spring Angular backend architecture Software Delivery