Marcin Oleszczuk
@marcinoleszczuk
Client-facing Service Delivery and Technical Operations leader focused on reliability.
United KingdomWhat I'm looking for
I am a client-facing service delivery and technical operations leader with over 10 years' experience across SaaS, financial services, and enterprise technology environments.
I have owned end-to-end service delivery for complex platforms, maintained SLA performance, led incident resolution, and built trusted senior stakeholder relationships to protect client retention and contract value.
My background includes regulated, high-availability environments where I implemented governance, risk registers, and structured reporting to improve release predictability and reduce operational disruption.
I deliver commercial and operational contributions through budgeting support, capacity planning, continuous improvement initiatives, and clear executive communication to demonstrate service value.
Experience
Work history, roles, and key accomplishments
Product Delivery Manager
PowerDesk
May 2022 - Present (3 years 9 months)
Owned service delivery and operational governance for the PowerDesk Core SaaS trading platform, ensuring SLA adherence, reducing operational disruption through governance, and maintaining senior client relationships to support retention.
Agile Project Manager
City Facilities Management
Oct 2018 - May 2022 (3 years 7 months)
Managed multiple concurrent enterprise software initiatives, coordinated cross-functional teams to maintain delivery commitments, and led governance and reporting to senior stakeholders to ensure service continuity.
Senior Test Analyst
City Facilities Management
Jan 2016 - Oct 2018 (2 years 9 months)
Led regression and performance testing, supported incident triage, and strengthened QA governance to improve release quality and operational stability.
Test Automation Engineer
Skyscanner
Jan 2015 - Jan 2016 (1 year)
Supported high-availability production environments with continuous delivery pipelines and implemented automation to accelerate release cycles and improve reliability.
QA Test Engineer
J.P. Morgan
Jan 2014 - Jan 2015 (1 year)
Contributed to regulated SDLC and executed risk-based testing practices to ensure compliance and quality in financial services applications.
QA Test Engineer
Intive
Jan 2011 - Jan 2013 (2 years)
Progressed from trainee to QA engineer, implementing automation and regression testing within Agile teams to improve product quality.
Education
Degrees, certifications, and relevant coursework
University of Szczecin
Master of Science, Computer Science and Econometrics
Completed a Master's degree in Computer Science and Econometrics focusing on advanced computational and quantitative methods.
University of Szczecin
Bachelor of Science, Computer Science and Econometrics
Completed a Bachelor's degree in Computer Science and Econometrics covering foundational computing and quantitative analysis techniques.
Availability
Location
United KingdomAuthorized to work in
Job categories
Skills
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