Urszula Sobieraj

Data and Analytics Professional

Salary / Daily rate

London, UK

Freelance, open to permanent contract

Skills

SQL QueriesTableauA/B TestingPythonRMySQLAmazon RedshiftSnowflakeMarket ResearchLookerPower BIProcess ImprovementAWSData Visualization

About me

Intro

Data and analytics professional with 6+ years of experience translating complex, high-volume data into commercial decisions for global clients across adtech, digital media, and marketing technology. Experienced across the full analytics lifecycle from SQL-driven reporting and dashboard automation to A/B testing, audience analysis, and executive-level data storytelling with a consistent track record of influencing budget allocation, campaign strategy, and business performance at senior stakeholder level. Equally comfortable working independently, embedded within cross-functional teams, or leading analytical workstreams end-to-end. Brings a commercially grounded, technically fluent approach to performance measurement, client advisory, and process improvement with the communication skills to make data accessible and actionable for any audience.

Links

Work experience

Data Annotator (contract)

Outlier

Nov 2025 - Present

1 year

London, UK

Travel & Upskilling

Planned Career Break

May 2025 - Oct 2025

6 months

The World

– Completed a 6-month international travel sabbatical to broaden global perspectives and focus on personal and professional development. – Proactively expanded technical skill set through self-guided learning, focusing on emerging technologies in AI and data analysis. – Certifications & Training: (revision of the basics) Google Data Analytics Professional Certificate, Google AI Essentials, HarvardX CS50, and Canva Essentials. – Professional Workshops: Actively engaged in tech community webinars, covering modern vibe coding applications (Lovable) and building AI agents (LangChain, Ollama).

Senior Client Analytics Partner

StackAdapt

Apr 2022 - May 2025

3 years 2 months

London, UK

– Developed and delivered SQL-driven management reports and ThoughtSpot/Tableau dashboards to monitor cross-channel performance metrics—customer acquisition cost, conversion rates, revenue pipeline, and ROI—for high-value EMEA clients. – Analysed high-volume customer behaviour data across digital channels (Display, Native, Video, OTT, CTV, DOOH, FTA) using advanced statistical techniques (A/B Testing, Ad Effectiveness, CCA, Brand Lift, Creative Incrementality) to identify trends, issues, and growth opportunities. – Produced weekly and monthly executive summaries on campaign performance and commercial KPIs; guided senior stakeholders' decisions on budget allocation, pricing, and promotional tactics. – Led strategic roadmap discussions with internal and external stakeholders—aligning on KPIs and translating business requirements into data models, report specifications, and process workflows. – Prioritized EMEA workloads and enforced reporting controls, ensuring data accuracy and timeliness. – Mentored junior analysts in SQL best practices, dashboard automation, and commercial analysis methodologies—fostering a data-led decision-making mindset across the team. – Collaborated with Adobe Experience Cloud and Google Analytics 4 to cross-validate audience data and enrich commercial intelligence for client acquisition and retention strategies.

Senior Global Investment Analyst

Wavemaker

Jun 2019 - Apr 2022

2 years 11 months

London, UK

– Monitoring and analysing the international network of client's media buying performance and reporting this back to the client – Exposure to C-level strategy meetings and data-driven decision consulting – Day to day ownership of client accountability and audit deliveries, working with clients and local teams to ensure effective delivery of commitments – Management of key international client's value offer, creation, KPI setting, delivery and reporting – Assisting in development of key relationships with auditors – Training and supporting junior team members – Supporting with New Business Pitches

Consultant, Business Support & Reporting

Ila Pothecary

Mar 2019 - Apr 2022

3 years 2 months

Remote

– Developed and maintained financial forecasts, variance analysis, and operational metrics tracking dashboards using Power BI to support leadership reviews and decision-making. – Analysed commercial contracts and compliance requirements, contributing to risk mitigation and regulatory adherence. – Delivered actionable recommendations based on financial and operational data trends to improve commercial performance and customer engagement.

Shift Leader

JD Wetherspoon

May 2014 - May 2019

5 years 1 month

London, UK


Education

Warsaw University of Technology

BSc, Logistics & Technology of Road Transport

2016 - 2020

4 years 1 month

Warsaw School of Economics

BA, Management

2015 - 2018

3 years 1 month


Licenses & certifications

Canva Essentials

Issued: –

Certified by Canva

CS50

Issued: –

Certified by HarvardX

Google AI Essentials

Issued: –

Certified by Google

Google Data Analytics Professional Certificate

Issued: –

Certified by Google

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