p
pablosanzalon

Pablo S

@pablosanzalon

Senior Full Stack Developer, Java, Go, React and AI Integrations

Spain
Spanish, English
About me
Senior full stack developer with 10 years of experience turning ideas and manual processes into production software: web apps with admin panels, REST APIs and backends in Java, Spring Boot, Go or Node.js, and AI integrations such as chatbots, LLM agents and automations. I have built systems for a public health service, a large electronics retailer, an international supermarket group and banking clients. Fixed price, clear scope, milestones you can test, and you own documented, deployed code. Message me with your project and I will reply with a concrete plan. ... Read more

Skills

p
pablosanzalon
Pablo S
Offline • 

See my services

Full Stack Web Applications
I will build your custom web app with admin panel using react and node js
From$120 / projectMore details
API & Integrations
I will develop a rest API or backend in java spring boot
From$80 / projectMore details

Work experience

Trazadera

Principal Software Engineer

Trazadera

Mar 2025 - Present • 1 yr 8 mos

I lead Trazadera's product line end to end: shaping ideas with the business, architecture, core development, infrastructure and production rollout with clients. • modernAIze — AI-assisted modernisation of legacy systems (COBOL, webMethods, SAP BW, Qlik…) into Java/Spring or dbt on Snowflake, BigQuery or Databricks. • Golden — master data management platform that unifies customers, products or suppliers into one trusted record with full traceability; in production with millions of records in hospitality and travel. • Lens — edge data capture: lightweight agents on Linux, Windows, macOS and Android orchestrated from a central platform; measures WiFi experience across hotel chains. Tech: Java, Spring Boot, Go, TypeScript, LLMs, PostgreSQL, Kafka, MQTT, dbt, Snowflake, BigQuery, Docker, Kubernetes, GitHub CI/CD.

mindcurv_group

Tech Lead

mindcurv group

Jun 2021 - May 2025 • 3 yrs 11 mos

• Senior Developer (Jan 2024 – May 2025): built a complete online ordering system for a supermarket chain in Go — orders, warehouse selection, picking and shipping, plus payments with gateway retries and SMS/email notifications. • Tech Lead (Mar 2022 – Jan 2024): led the backend team (planning, analysis and technical support) on a new middleware for user management and financial operations; Quarkus (Java 8/11) with OpenAPI contracts between backend and frontend. • Senior Developer (Jun 2021 – Mar 2022): migrated an e-commerce monolith to microservices in Go and Java on GKE/Kubernetes.

Aareon_Group

Analyst Programmer

Aareon Group

Sep 2019 - Jun 2021 • 1 yr 9 mos

Dockerised microservices acting as middleware over banking service APIs, giving clients a clearer and simpler API (PHP/Symfony, Angular, Docker, Kubernetes, REST). Introduced mutation testing (Infection) to raise QA. Worked directly with the French and German teams in English, in a fully self-managed remote team.