Alejandro Sierra

Backend Engineer

https://talent.gravityer.com/alejandro-sierra

🤖 I am not a prompt but ... I develop scripts and automation code to improve infrastructure and quality processes.

Europe

Key Strengths

Demonstrated interest in backend development through personal projects.
Experience with Java and Python, key languages for backend roles.
Focus on API testing, performance, and quality gates indicates a strong understanding of robust system development.

Cultural & Operational Fit

Cultural Fit Analysis

The candidate's projects are primarily personal and focused on technical exploration, which suggests a self-driven individual. However, the lack of team-based projects or professional experience makes it difficult to assess collaboration and broader cultural fit. The projects show a strong inclination towards quality assurance and performance testing, which could be a valuable asset.

Soft Skills & Operational Fit

Insufficient data to assess soft skills or operational fit. No psychometric test results or interview feedback provided.

AI is analyzing your overall score…

Identifying your key strengths…

Evaluating your skill match against the job requirements…

Assessing your cultural and operational fit

Projects

QAtlas

February 23, 2026 – Present

QAtlas — Dev.to repository

View Project

PowerliftingAPI

January 7, 2026 – Present

PowerliftingAPI — Dev.to repository

View Project

Bruno-api-testing

January 6, 2026 – Present

Bruno-api-testing — Dev.to repository

View Project

Gatling

January 6, 2026 – Present

Gatling — Dev.to repository

View Project

Jmeter

January 5, 2026 – Present

Jmeter — Dev.to repository

View Project

api-contract-quality-gateway

December 16, 2025 – December 16, 2025

OpenAPI contract validation as a blocking quality gate. Spectral-powered linting + Java API tests (JUnit, RestAssured, Allure) in a single automated flow.

View Project

ai-driven-api-qa

November 22, 2025 – November 27, 2025

ai-driven-api-qa — Dev.to repository

View Project

java-testcontainers-springboot

November 14, 2025 – November 16, 2025

Spring Boot 3.2 (Java 17) REST API with advanced testing. Uses Testcontainers (PostgreSQL) for highly reliable integration tests, Mockito for isolated component tests (Controller layer), and JaCoCo for comprehensive code coverage reporting. A blueprint for enterprise Java best practices.

View Project

October 11, 2025 – October 15, 2025

Robust performance testing environment for a Node.js/PostgreSQL API. Uses k6 for combined load testing (read, write, auth), with real-time results streamed to InfluxDB and visualized in Grafana via Docker Compose.

View Project

db_performance

September 5, 2025 – September 8, 2025

DB Performance es un proyecto enfocado en analizar, monitorear y optimizar el rendimiento de bases de datos. Este repositorio contiene herramientas, scripts o configuraciones diseñadas para evaluar métricas críticas, identificar cuellos de botella y proponer mejoras en el desempeño de sistemas basados en bases de datos.

View Project

Key Strengths

Demonstrated interest in backend development through personal projects.
Experience with Java and Python, key languages for backend roles.
Focus on API testing, performance, and quality gates indicates a strong understanding of robust system development.

Cultural & Operational Fit

Cultural Fit Analysis

Soft Skills & Operational Fit

Insufficient data to assess soft skills or operational fit. No psychometric test results or interview feedback provided.

Alejandro Sierra

Key Strengths

Cultural & Operational Fit

Top Skills

Skills

Projects

Key Strengths

Cultural & Operational Fit