November 6, 2026
Spyros Mintzas
DOSSIER ID: SM-ECE-2018 · STATUS: ACTIVE · CLEARANCE: SC
| ⚒Occupation | Lead Data Engineer, Python · SQL · Google Cloud |
| ⌂Location | Attica, Greece (ex-London, 2018–2025) |
| ✎Education | MSc, Electrical & Computer Engineering, University of Patras (2018) |
| ✓Certified | Google Professional Data Engineer · SC clearance (Feb 2024) |
| ♥Side project | Founder of bargain.gr, live since 1 Nov 2026 |
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ON FILE
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⬡Relationships
subjectemployers & toolsown projects
▣Evidence
PythonSQLGoogle CloudBigQuerydbtArgo Workflows
Pub/SubDataflowCloud ComposerTerraformKubernetesCI/CDpandas
Google Professional Data EngineerSecurity Clearance (SC)German ZMP C1
Greek · nativeEnglish · C2German · C1Spanish · A2Korean · A1
❝Records
bbargain.grFounder · 2026 – present▼
Launch
◀✉Nov 01Subject[bargain.gr] The site is live, in Greek and English
Project
◈2026SessionA community deals site for Greece
- Members post and vote on deals, coupons, freebies, price glitches and referrals from Greek and online shops.
- Built solo: web app, bots that collect offers, a members' Club with quests and badges, alerts by email and push, a Telegram channel.
- Next: a native app for Android and iPhone.
VVisa · PiraeusConsultant Lead Data Engineer · Mar 2026 – present · Attica, Greece▼
Engagement
✆Mar 26SessionConsultant Lead Data Engineer · details classified
IIpsosLead Data Engineer · Apr 2024 – Aug 2025 · London▼
Data platform
☁2024–25SessionScalable pipelines on GCP with Python, SQL and dbt
- Led the design and implementation of the data pipelines behind the organisation's decision-making.
- Orchestrated workflows with Argo Workflows in a Kubernetes-native environment.
- Defined infrastructure with Terraform for reproducible, automated environments.
- Architected a modular data platform with cross-functional stakeholders.
- Set the practices for testing, CI/CD and version control.
- Moved legacy data processes to cloud-native solutions.
AAppsbrokerSenior Data Engineer · Nov 2021 – Feb 2024 · London▼
Client platforms
☁2023SessionData platform for a global media agency
ETL with Python, SQL, dbt, AWS S3 and GCP (Cloud Storage, Pub/Sub, Cloud Functions, Dataflow, Cloud Composer, BigQuery) moving data between many sources.
☁2022SessionData platform from scratch for a multinational telecoms company
Python, SQL and GCP pipelines pulling from Oracle Siebel, SAP, HubSpot, Cloud Storage and BigQuery through their APIs.
☁2022SessionSecure onboarding platform for an advertising holding company
Python, SQL, Cerberus, Flask and GCP (Cloud Storage, Pub/Sub, Cloud Functions, Cloud Composer, Cloud IAM, Secret Manager), built for faster client onboarding with security first.
▤2021SessionAnalysis for a distribution network operator
Budgeting, asset-health maintenance, defect detection and marketing decisions from data analysis; visualised in Google Data Studio.
SSkySep 2018 – Nov 2021 · London▼
Cloud / SecOps · 2020–2021
⚿2020–21SessionCloud Engineer / SecOps Engineer
- Secure VPC architecture with public and private subnets; access policies across the GCP organisation.
- Regular security audits of the cloud infrastructure.
- CI/CD for GCP resources with Jenkins, Terraform and YAML; Python automation scripts.
- Advised on architecture, security, scalability and costs.
DevOps / Data · 2018–2020
▤2018–20SessionDevOps Engineer / Data Engineer
- ETL with Python, pandas and SQL moving Sky's data from on-premises systems to BigQuery, joined with third-party data.
- Bash and Python automation for GCP deployments.
- Tackled content piracy through data analysis, with a real-time effect on profits.
HAHellenic ArmyComputer Systems Engineer · 2015 – 2016 · Cyprus▼
Service
⚿2015–16SessionSecure networks and communication systems
Networks for secure transfer of classified documents, reliability of the army's communication systems, equipment maintenance and small applications built on tight deadlines.
UPUniversity of PatrasMSc, Electrical & Computer Engineering · 2018▼
Record
✎2018SubjectMaster's degree, Department of Electrical and Computer Engineering