• I love building things that matter—from full‑stack apps and data pipelines to WebApp prototypes.
• MSc Data & Computational Science (UCD, 2024–2025) with a strong math and statistics foundation.
• Comfortable spanning backend ↔ data ↔ DevOps ↔ testing, with a bias for clear docs and reproducible results.
• Previously at Tekion (QA/SDET → full‑stack), led FABLAB resource manager project, founded Pattarai student tech club.
• Currently exploring LLMs & RAG, Spark/Databricks, and WebApps development for collaborative experiences.

Value prop: I ship reliable software, document decisions, automate the boring stuff, and align builds to stakeholder outcomes.

Languages
Python · TypeScript/JavaScript · Java · SQL · R

Backend & APIs
Flask · Node.js · Express · REST · Auth (JWT/OAuth2) · OpenAPI

Frontend
React · Typescript · HTML/CSS · MUI/Tailwind

Data & ML
Pandas · NumPy · scikit‑learn · Spark/PySpark · ETL/ELT · Time‑series · Anomaly detection · Shiny (R)

Databases
PostgreSQL · MySQL · MongoDB · Redis · (Snowflake familiarity)

Cloud & DevOps
AWS (EC2/S3) · Azure (ADF/Databricks/Data Lake) · Docker · Kubernetes · Jenkins · GitHub Actions · Linux

QA & Automation
Selenium (POM) · REST‑assured · Postman · pytest · CI/CD test pipelines

MERN (MongoDB/Express/React/Node) · Role‑based access · SSO ready

• Reservations, inventory, and access control with audit trails and usage analytics.
• Led requirements → UX → delivery; introduced CI checks and deployment scripts.

ESP32 · Cloud logging · Analytics dashboards

• Low‑cost alternative to commercial scanners used by campus during COVID‑19.
• Workshops for juniors; emphasized learning‑first culture.

Flask · PostgreSQL · Auth · Modular services

• Lightweight ERP modules (auth, inventory, invoicing) with clean data models and API docs.

R/Python · Monte Carlo · Data viz

• Estimates war‑related CO₂ emissions using literature‑based factors; reproducible notebook.

• Reproducible by default: Makefiles/Taskfiles, requirements.txt/pyproject.toml, lockfiles.
• Observability: structured logs, metrics, health endpoints.
• Automation: CI checks (lint, type‑check, tests), Dockerized dev envs.
• Docs: READMEs with quick starts, architecture diagrams, API examples.
• Stakeholder‑first: crisp releases, changelogs, and feedback loops.

• FABLAB Invention Award for leadership and team spirit.
• Founded Pattarai (student tech association) to bridge academics ↔ industry.
• Tekion (QA/SDET → Full‑stack): shipped major releases smoothly; promoted for reliability.
• Rotaract leadership; frequent presenter and workshop host.

• Software Engineering (Full‑stack · Backend · Platform)
• Data & Analytics (DE/DA/DS internships & junior roles)
• QA/SDET (automation pipelines)

Preferably Ireland/UK/EU; remote welcome. Start dates: immediate/flexible.

• Email: jesinthan.ie@gmail.com
• LinkedIn: https://www.linkedin.com/in/jesinthan
• Portfolio: https://www.jesinthan.tech

If you’re building something interesting (data infra, real‑time systems, XR, or impactful public‑interest tech), let’s talk.

_{Last updated: November 2025 · Built with ❤️ for clarity, reliability, and shipped software.}