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Alexandros Sotiriou

@alexandrossotiriou

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Product Engineer at Racapp building customer-facing Angular and TypeScript features for a B2B car-rental SaaS platform.

Germany

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At Racapp, I build customer-facing screens for a B2B car-rental SaaS platform using Angular and TypeScript. I turn business requirements into shipped features with product and backend teams, and use my production-support background to catch edge cases and debug operator-reported issues.

At Playtech, I led a team of 10 Technical Support Officers and authored more than 15 SOPs and runbooks, reducing L1 escalations by 50%. I also used Bash and Linux tools to automate shift work and cut log triage from 60 minutes to 15.

Earlier at Playtech, I resolved support tickets for sportsbook operators, investigated distributed-system bugs using SQL and Elasticsearch, and onboarded junior staff. At E-Compvenience, I debugged WebGL and REST API issues and analyzed LiDAR point-cloud data in Python.

Experience

Work history, roles, and key accomplishments

Current

Product Engineer

Current

Racapp

May 2026 - Present (6 months)

Design and build customer-facing screens for a B2B car-rental SaaS platform in Angular and TypeScript. Turn business requirements into shipped features, working directly with product and backend teams.

Angular TypeScript UI Development Product delivery Debugging REST APIs

Technical Support Specialist - Shift Leader

Playtech

Mar 2025 - Mar 2026 (1 year)

Led a team of 10 Technical Support Officers, coordinating shift handovers and ensuring SLA compliance. Authored 15+ SOPs and runbooks in Confluence, reducing L1 escalation volume by 50%.

Team Leadership SLA Management Process Design Confluence BASH Linux Command Line Log Inspection and Triage Automation

Application Support Engineer

E-Compvenience

Jan 2024 - Jan 2026 (2 years)

Debugged WebGL/Three.js rendering issues and RESTAPI integrations, validating JSON payloads and endpoint behavior using Postman across web browsers. Analyzed LiDAR point cloud datasets in Python (NumPy, Open3D) to identify spatial data anomalies before client delivery.

WebGL ThreeJS REST APIs Postman JSON Python NumPy Open3D Browser DevTools Debugging

Customer Technical Support (L1 to L2) & Trainer

Playtech

Apr 2022 - Mar 2025 (2 years 11 months)

Resolved 220+ tickets per week across live chat, email and phone for 30+ sportsbook operators, including payment and transaction issues, hitting SLA on 100% of tickets in Jira. Queried SQL databases and Elasticsearch via Kibana/Grafana to trace complex bugs across distributed systems.