Senior Full-Stack Engineer - React TS, .NET C#, AWS Serverless

Hugo Vázquez Paleo

Senior Full-Stack Software Engineer · React TypeScript · .NET/C# · AWS

****.*******.*****@*****.***

+52-453-***-****

linkedin.com/in/hugo-v-706981b9

Apatzingán, Michoacán, MX

PROFESSIONAL SUMMARY

Senior Full-Stack Software Engineer with 7+ years of experience designing and building scalable web applications, with strong technical ownership across frontend, backend, and cloud architecture. Led full-stack projects from the ground up in React TypeScript and .NET/C#, defining architecture, testing strategies, and development conventions. Hands-on with serverless AWS infrastructure (AppSync, Lambda, DynamoDB, CDK) and experienced in penetration testing and secure development practices. Actively integrates AI-assisted development tooling (GitHub Copilot, Claude Code, MCP servers) into daily workflows. Seeking a remote Senior Full-Stack or DevOps-leaning role with international reach.

WORK EXPERIENCE

Full-Stack Web Developer Jan 2025 – Present

Akasia Software Development · On-site

Led the development of a web-based POS system from the ground up within a 5-person full-stack team, with ownership across the full stack — frontend, REST API, and database layer.

Introduced and implemented RTK Query, structuring API consumption by domain and establishing cache invalidation strategies to replace ad-hoc data-fetching patterns.

Established the backend testing strategy using xUnit, focusing coverage on the service layer where business logic is concentrated, and defined team-wide development conventions.

Designed and optimized complex transactional T-SQL stored procedures with multi-table transactions, structured TRY/CATCH error handling, and performance-conscious query design.

Developed a custom SQL Server unit-testing microframework (inspired by tSQLt) to validate critical stored procedure logic and core database execution paths.

Applied secure coding practices throughout the SDLC, leveraging penetration testing background to identify and remediate vulnerabilities proactively.

Integrated AI development tooling (GitHub Copilot, Kilo Code, Claude Code, MCP servers) into the team workflow, including designing AI agent skill files to standardize assistant usage across the team.

Frontend Web Developer Dec 2021 – Jan 2025 (3 yrs 5 mos.)

HCL Technologies · Zapopan, Jalisco, MX · Remote

Developed and maintained enterprise-grade React TypeScript applications within a legacy architecture using UI-Router for complex state-based navigation in large-scale B2B systems.

Owned frontend testing coverage using Jest and React Testing Library, improving release confidence across multi-team enterprise environments.

Implemented end-to-end BDD test scenarios with Cucumber running in CI/CD pipelines against integrated dev environments, taking full ownership of scenario writing when delegated by QA.

Collaborated with backend teams on Java Spring APIs, contributing CRUD endpoint implementations to support an internal AI-powered chat system for system usage analytics.

Identified and remediated critical security vulnerabilities including XSS in production applications, applying OWASP-aligned fixes directly.

Cybersecurity Analyst Oct 2020 – Nov 2021 (1 yr 2 mos.)

IA Interactive · Morelia, Michoacán, MX

Performed manual penetration testing and vulnerability assessments across web applications, aligned with OWASP Top 10 standards.

Issued detailed vulnerability reports with severity ratings and proposed remediation strategies; validated mitigations across SDLC phases.

Analyzed digital assets and proposed security architecture improvements to development and product teams.

Software Engineer (Full-Stack) May 2019 – Oct 2020 (1 yr 6 mos.)

IA Interactive · Morelia, Michoacán, MX

Built and maintained full-stack web applications across independent projects in AngularJS and React with .NET Framework / .NET Core backends.

Designed REST APIs with data persistence in SQL Server for long-term storage, MongoDB and Redis for caching — selecting storage strategy based on access pattern and data lifecycle.

Used Entity Framework ORM for data access layers; integrated ADO.NET patterns for performance-critical stored procedure calls.

iOS Mobile Programming Instructor Feb 2024 – Jun 2024 (5 mos., Part-time)

Tecnológico Nacional de México – Campus Apatzingán · Apatzingán, Michoacán, MX

Designed and delivered an introductory iOS development curriculum using Swift and UIKit for Computer Systems Engineering undergraduates.

TECHNICAL SKILLS

Frontend

React TypeScript, RTK Query, React Hook Form, React Router, UI-Router, Vite, AngularJS, VueJS

Backend

.NET Framework / Core, C#, ADO.NET, Entity Framework, Java Spring, PHP Laravel

Architecture

Controller Service Repository, Unit of Work, DTO Mapping, Multi-tenancy, Middleware Pipelines, Global Exception Handling

Databases

SQL Server (T-SQL, Stored Procedures, Multi-table Transactions), MongoDB, Redis, DynamoDB

Cloud / AWS

AppSync (GraphQL), Lambda, DynamoDB, S3, CDK, CloudFront, Cognito, Route 53, SES, API Gateway

Testing

Vitest, React Testing Library, Jest, xUnit, Cucumber (BDD/E2E), Playwright · Custom SQL Server testing microframework

API / Auth

REST, GraphQL, JWT (access/refresh tokens, roles, claims), AWS API Gateway, AppSync

DevOps / VCS

Git, GitLab CI/CD, GitHub Actions, Bitbucket, Docker, Docker Compose

AI Tooling

GitHub Copilot, Claude Code, Kilo Code, MCP Servers, AI Agent Skill Design, Prompt Engineering

Security

Manual Penetration Testing, OWASP Top 10, XSS/SQLi Remediation, Secure SDLC

EDUCATION

B.Sc. Computer Systems Engineering 2008 – 2013

Tecnológico Nacional de México – Campus Apatzingán

LANGUAGES

Spanish — Native English — Professional working proficiency (B2)

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