Jesus Figueredo

Senior Software Engineer | Full Stack Specialist | CABA, Argentina | jesus@figueredo.dev | linkedin: jesusfigueredo

PROFESSIONAL SUMMARY

Senior Software Engineer with over 6 years of experience specializing in the development of high-performance, scalable applications. My professional approach bridges the agility of the Node.js ecosystem with the analytical rigor of my background as a Senior Systems Engineering student.

I have led the full software development life cycle (SDLC) for digital products, ranging from modular, modern interfaces with React, Vue, and Lit, to robust backend architectures in Node.js. Expert in designing distributed systems, extreme performance optimization, multitenant architectures, and continuous deployment in cloud environments (AWS).

WORK EXPERIENCE

Devheads Technologies
Senior Software Engineer | January 2019 – Present
- Node.js Fullstack Developer (Backend Focused) | 2025 – Present
  - Extreme Performance Optimization: Reduced response times for critical services by over 99% (from 4s to 0.7ms on average) through SQL query redesign, multi-layer caching implementation, and data analysis algorithm re-engineering.
  - Multitenant Architecture: Designed and maintained a scalable REST infrastructure using PostgreSQL and AWS Lambda, ensuring data isolation and consistency across multiple concurrent clients.
  - Technical Modernization: Led the migration of microservices from Node 16 to Node 20, ensuring system stability and the adoption of the latest security and performance features.
  - Security & Frontend: Performed continuous security audits to close vulnerabilities and optimized API consumption in React.js through advanced pagination strategies and local state caching.
- Angular Developer (Microservices & Real-time) | 2023 – 2024
  - Developed a high-complexity platform for real-time appointment and queue management, integrating asynchronous communication for mission-critical workflows.
  - Implemented modular interfaces in Angular connected to a microservices architecture, prioritizing browser performance and code maintainability.
- React Developer | 2020 – 2022
  - Led the frontend development for SrCambio and other fintech platforms, using React.js to build dynamic, secure, and high-traffic interfaces.
  - Executed complex state management strategies and rendering optimizations, significantly improving the end-user experience.
- React Native Developer (Mobile) | 2019
  - Developed and deployed cross-platform mobile applications for the healthcare and logistics sectors (ESSalud Med, Returnit).
  - Successfully integrated native device services and third-party APIs for seamless mobile experiences.

EDUCATION

B.S. in Systems Engineering (4th year)
Focus on Software Architecture, Algorithms, and System Optimization.

TECHNICAL SKILLS

Backend: Node.js (Expert), Express, Microservices, Multitenant Architecture.
Frontend: React.js, Angular, Vue.js, Lit, Astro, Tailwind CSS.
Databases: PostgreSQL (Query optimization, Indexing, GIN/pg_trgm), Redis.
Cloud & DevOps: AWS (Lambda, EC2), Docker, Podman, CI/CD, Datadog.
Security: OAuth2, JWT, Cryptography (Ed25519, AES), FIDO2.
Tools: Vite, Vitest, Git, SCRUM.

KEY ACHIEVEMENTS

Latency Transformation: Achieved a reduction in response times from 4 seconds to sub-millisecond levels in core services.
Scalability: Successfully implemented Serverless logic (AWS Lambda) for cost optimization and automatic scaling.