Tomas – React, Node.js, AWS

Centralized Internal Developer Platform (IDP) supporting hundreds of engineering teams and thousands of production workloads, abstracting infrastructure complexity and enabling safe, independent deployments.

• Built and scaled an internal cloud platform used by hundreds of teams and thousands of workloads;
• Enhanced security and hardened the infrastructure;
• Took ownership of critical platform systems including Backstage, deployments, and catalog, turning unstable or complex areas into reliable, maintainable solutions;
• Led migrations and simplification efforts that removed legacy complexity and saved hundreds of engineering hours;
• Acted as an escalation point for incidents and drove root-cause fixes and long-term reliability improvements.

Group therapy platform focused on grief support, connecting users through structured therapy sessions and continuously evolving based on participant feedback.

• Developed a customer feedback collection system regularly used by over 60% of the customer base;
• Migrated the in-house chat system to a third-party messaging platform, improving reliability and maintainability;
• Drove technical debt reduction through database restructuring, improved QA processes for test environments, and TypeScript strict mode adoption;
• Introduced TypeScript types across key components, including database methods and singleton factories, improving type safety and code maintainability;
• Improved technical knowledge sharing by creating and curating a dedicated team learning channel;
• Revamped retrospectives and technical debt meetings to surface team pain points and improve collaboration and efficiency.

Digital product agency delivering design-driven web and mobile applications for clients across various industries.

• Contributed to the company’s growth from 20 to 80 employees;
• Managed three client projects across project and product responsibilities, coordinating cross-functional teams of full-stack engineers, Tech Leads, QA, UX, and UI specialists.

Digital product agency delivering design-driven web and mobile applications for clients across various industries.

• Led multiple small engineering teams of 2–3 developers across client projects;
• Owned architecture decisions and conducted code reviews across multiple projects;
• Improved the technical interview process and interviewed over one-third of Full-Stack Engineer candidates;
• Onboarded and supported new engineers;
• Represented the company at industry and community events.

Digital product agency delivering design-driven web and mobile applications for clients across various industries.

• Worked autonomously as a core member of development teams, delivering production features and solutions;
• Supported and mentored junior engineers in their day-to-day development work;
• Presented technical topics on JavaScript and React at developer meetups.