Juan Sebastian Sotomayor

Stack: React, TypeScript, Redux, AWS (S3, Lambda, EC2, RDS, CloudFront), GraphQL, Docker, Jenkins, GitHub Actions, Node.js, Python.

• Technical Lead of the Kate Stuttgart-Avanti (Germany) project, overseeing front-end architecture, engineering practices, and code quality.
• Developed high-performance SPA applications using React + TypeScript, applying optimization patterns (memoization, lazy loading, state normalization).
• Designed and maintained CI/CD pipelines, reducing deployment time by 40%.
• Implemented and managed cloud infrastructure using AWS services to ensure scalability and reliability.
• React instructor and mentor for the KrugerStar program, training junior developers in modern front-end engineering.
• Contributed to enterprise projects for Claro Brazil, Laboratorios Bagó (Argentina), and Kore ERP, delivering critical product features.

Stack: React, TypeScript, Redux, Ant Design, REST APIs, Jest, AWS, Redis

• Delivered front-end features for the largest HR platform in Latin America, supporting high-volume enterprise clients.
• Built and refactored UI components using React + TypeScript + Ant Design, ensuring consistency, accessibility and high visual quality across the Tempo module.
• Integrated multiple REST APIs with robust error handling, caching and state management using Redux and custom hooks.
• Improved rendering performance by 25% through memoization, bundle splitting, dependency hygiene and optimized data flows.
• Increased front-end reliability by adding unit tests with Jest, improving code coverage and reducing regressions.
• Worked with AWS-based environments and Redis-backed services, collaborating closely with backend and product teams to ship high-impact releases under agile workflows.

Stack: Toast POS, SpotOn POS, SQL Databases, POS Integrations, REST APIs, Cloud-Based Backoffice Systems

• Managed and optimized POS ecosystems across 20+ restaurants in the Southwest US, ensuring accuracy, stability and operational continuity across all locations.
• Designed and maintained database-driven menu structures, guaranteeing consistent pricing, modifiers, tax logic and product attributes across multiple franchise brands.
• Implemented automated validation and sync processes that reduced menu-related inconsistencies by 35%, improving order accuracy and lowering support tickets.
• Executed POS integrations with internal systems and third-party services, improving data flow between inventory, accounting and customer-facing platforms.
• Collaborated with regional managers, store leads and vendors to diagnose production issues, streamline workflows and maintain business-critical uptime across all restaurants.

Stack: Appian BPM Suite (SAIL UI, Process Models, Expression Rules, Integrations), SQL Databases, REST Integrations

• Built enterprise-grade applications using Appian, delivering end-to-end workflows, SAIL interfaces, data models and integrations for financial and insurance organizations.
• Designed dynamic SAIL-based UI components, improving usability, accessibility and consistency across multi-step business processes.
• Integrated external systems using Appian Web APIs, Connected Systems, and Process Models, enabling seamless data exchange with CRMs, ERPs and legacy systems.
• Developed scalable process automations that reduced manual workload and increased operational efficiency for client departments.
• Provided technical documentation, release preparation and environment coordination to ensure smooth deployments across Dev, QA and Production environments.

Stack: Atlassian Suite (Jira, Confluence, Bitbucket), AWS, Docker, SQL Databases, Linux/Cloud Environments

• Participated in cloud migration initiatives, helping transition on-premise systems and databases to AWS-based environments.
• Configured and supported Atlassian tools, enabling teams to adopt modern development workflows, automation rules and improved project visibility.
• Worked with Docker containers to standardize deployment environments and improve environment reproducibility.
• Assisted in database administration for SQL-based systems, including schema updates, performance checks and cloud readiness assessments.
• Supported SDLC operations including integration pipelines, release coordination and technical troubleshooting during critical deployments.

Stack: React, JavaScript (ES6+), Angular, HTML5, CSS3, Responsive UI, Jenkins, Jira, Git Flow

• Developed modern web interfaces using React and Angular, contributing to the delivery of responsive, user-friendly front-end experiences.
• Collaborated on UI/UX improvements by transforming wireframes and business requirements into functional, maintainable components.
• Implemented clean, modular front-end architecture with reusable components, state management patterns and strict TypeScript/JavaScript standards.
• Participated in continuous integration workflows using Jenkins, ensuring stable and reliable deployments.
• Worked within Scrum teams using Jira and Git Flow, contributing to sprints, code reviews and best engineering practices.

• Mentored junior web developers and provided technical support through code reviews.
• Proposed improvements to code organization to improve code quality and overall performance.
• My role was to provide high-quality, consistent, and timely reviews of students' professional skills projects to help them refine and perfect the materials they'll use when applying for jobs.
• Remote

• Managed to improve the company's sales by 10% by building a website.
• Coordinated processes and services due to my great communication skills.