FinTech Specialist · Database Developer · Integrations Engineer · Software Engineer

Welcome
great to have you here.

This is the corner of the web dedicated to Kostis Papagiannakis, a FinTech specialist based in Athens, Greece. For 15+ years he has been turning business needs into reliable software: databases, integrations, data pipelines and the cloud systems that hold them together, built hand in hand with the people who rely on them every day.

Away from the keyboard, Kostis has travelled around the globe, keeps his surroundings minimal and his days active, running the roads and chasing waves on a surfboard, and always has a good book on the go.

Scroll on to follow his professional path, see what he carries in his backpack, or ask his 24/7 assistant anything you'd like to know.

About

Technical product and data professional with 15+ years across data analytics, database development, software engineering, integrations, and ETL — mostly within FinTech. I translate business requirements into practical technical solutions, across databases, APIs, back-end systems, and cloud infrastructure, while staying close to the business and technical stakeholders those systems serve.

Core expertise

Business Domain

FinTech & financial systemsBilling & taxationTrading systemsIntegrationsHospitality

Coding tools

PostgreSQL / PL-pgSQLOracle / PL-SQLETL & schedulingAWSPythonJavaScript / Node.jsClaude Coding

Development methods

Agile / ScrumBusiness & technical analysisSoftware architecture & design

Development Tools

JiraConfluenceGitGenerative AI / Claude

Professional Path

  1. 2022 – 2026

    Storfund Ltd

    Software Engineer

    2024 – 2026

    Back-end development integrating the core system with Hubspot; queueing and job scheduling to keep both systems in sync.

    TypeScriptGenerative AI / ClaudeIntegrationsFinTechBusiness analysis

    Database Developer

    2022 – 2024

    Database development and solution design within a FinTech environment.

    PostgreSQLPL/pgSQLFinTechBusiness analysis
  2. 2019 – 2022

    Neurocom SA

    Senior Software Engineer

    FinTech software engineering and commissioning, with AWS, ETL and scheduling.

    OraclePL/SQLAWSFinTechBusiness analysis
  3. 2017 – 2019

    Intrasoft International

    Software Engineer

    Developed and supported FinTech solutions focused on billing and taxation.

    OraclePL/SQLJavaBilling & taxationBusiness analysis
  4. 2016

    weblogic.gr

    Back-end Web Developer

    Back-end web functionality for hospitality applications.

    T-SQLHospitalityBusiness analysis
  5. 2012 – 2016

    Glencore Grain B.V.

    Software Developer

    Software supporting trading-related business processes, with solution design and business collaboration.

    OraclePL/SQLJavaTrading systemsBusiness analysis
  6. 2009 – 2010

    Software Developer · Iliatoras IT-Solutions

  7. 2007 – 2008

    Intern, Software Development · Heletel Ltd

Education & skills

MSc Economics and Informatics

Erasmus University Rotterdam · Sep 2010 — Mar 2012

BSc Applied Informatics

University of Macedonia · Sep 2003 — Mar 2008

Advanced Web Development

E-learning: mobile-friendly & e-commerce web sites · Feb — Jun 2016

PostgresOracle PL/SQL (certified)OBIEE & ODIFinancial analysisRequirements analysis

Extras

Certifications

  • Oracle Database 11g: Advanced PL/SQL Ed2 LVC

    Oracle University · Dec 2013

  • PL/SQL Advanced Development & Anti-pattern Techniques

    Steven Feuerstein / AMIS · Dec 2013

  • JBoss 4.2.1

    Red Hat · Nov 2013

  • Python for Data Science and Machine Learning

    Feb 2021

  • The Complete JavaScript Course

    Mar 2022

  • Node.js, Express, MongoDB and more

    Dec 2022

Languages

  • GreekNative
  • EnglishC2
  • DutchA2
  • SpanishA2

Interests

  • Running
  • Surfing
  • Travelling
  • Cooking

Stay in touch