Hi, I’m Alexandra Olaru, a Software Engineer & Engineering Manager with 5+ years building distributed, event-driven financial systems in production. I specialize in high-throughput data pipelines, ML integration, and cloud-native architecture. I hold a BSc in Computer Science and Engineering from Delft University of Technology and have a strong foundation in concurrency and algorithms. I’m passionate about mentoring engineers, improving reliability through observability, and delivering business value through robust, scalable systems. I thrive in cross-functional environments and enjoy turning complex requirements into clean, maintainable software using modern tooling and CI/CD practices.

Alexandra Olaru

Hi, I’m Alexandra Olaru, a Software Engineer & Engineering Manager with 5+ years building distributed, event-driven financial systems in production. I specialize in high-throughput data pipelines, ML integration, and cloud-native architecture. I hold a BSc in Computer Science and Engineering from Delft University of Technology and have a strong foundation in concurrency and algorithms. I’m passionate about mentoring engineers, improving reliability through observability, and delivering business value through robust, scalable systems. I thrive in cross-functional environments and enjoy turning complex requirements into clean, maintainable software using modern tooling and CI/CD practices.

Available to hire

Hi, I’m Alexandra Olaru, a Software Engineer & Engineering Manager with 5+ years building distributed, event-driven financial systems in production. I specialize in high-throughput data pipelines, ML integration, and cloud-native architecture. I hold a BSc in Computer Science and Engineering from Delft University of Technology and have a strong foundation in concurrency and algorithms.

I’m passionate about mentoring engineers, improving reliability through observability, and delivering business value through robust, scalable systems. I thrive in cross-functional environments and enjoy turning complex requirements into clean, maintainable software using modern tooling and CI/CD practices.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

English
Fluent
Dutch
Beginner
German
Advanced
Romanian, Moldavian, Moldovan
Fluent

Work Experience

Software Engineer at Visma | ProActive
January 1, 2023 - Present
Designed and shipped a Pub/Sub invoice-processing pipeline handling 1M+ invoices, achieving end-to-end latency under 1 second with high parallelism and resilience. Integrated ML-powered document recognition models with 98% extraction accuracy, eliminating manual intervention at scale. Led full migration from on-prem OCR to a cloud-native AI recognition service, delivering 100% cloud coverage and improved stability across customer environments. Built and optimized financial system integrations covering VAT logic, reconciliation, and automated import/export pipelines. Delivered production-grade CI/CD and deployment automation using Docker, Kubernetes, GCP, GitHub Actions, and GitLab CI. Improved system observability through event instrumentation and product-usage telemetry for reliability improvements.
Engineering Manager at Visma | ProActive
January 1, 2025 - Present
Formally manage four engineers, owning 1:1s, performance reviews, and hiring decisions. Drive individual development plans and continuous-improvement initiatives across teams.
Tech Trainee at Visma Software International AS
January 1, 2022 - January 1, 2023
Backend (ProActive): Developed invoice processing pipelines, import/export modules, and SFTP-based integrations in production. Data Science (Visma ML Assets): Built a multilingual AutoSuggest categorisation model using BERT for financial document classification. Full Stack (Yuki): Delivered CO2 monitoring tooling and NER-based invoice extraction enhancements.
Student Assistant at TU Delft — Extension School
January 1, 2021 - January 1, 2022
Supported instructors and thousands of learners across large-scale online courses, resolving technical issues and improving platform reliability.

Education

BSc Computer Science and Engineering at Delft University of Technology
January 1, 2019 - December 31, 2022
Minor in Safety, Security and Justice at Delft University of Technology & Leiden University
January 1, 2021 - December 31, 2022
European Baccalaureate — Mathematics & Computer Science Track at National College “Gheorghe Lazar” Sibiu, Romania
January 1, 2015 - January 1, 2019

Qualifications

Claude Code in Action — Anthropic Academy
January 11, 2030 - March 17, 2026
McKinsey Forward Program — Certification
January 11, 2030 - March 17, 2026

Industry Experience

Software & Internet, Financial Services, Education, Professional Services, Other