Justas B.
Market Data Developer @Glencore
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WORK HISTORY
Market Data Developer @Glencore
London, GB
Key Contributions Designed and automated an Independent Price Verification (IPV) service for global oil, power, and gas products, enhancing risk transparency and reducing manual validation effort. Built and deployed a full-stack data lineage web application and API to abstract complex market data flows, enabling traders and risk teams to trace data from external vendors and exchanges through to pricing curves used in decision-making. Developed, optimised, and productionised critical data quality controls, delivering automated intraday reports that detect and flag missing, incomplete, or anomalous market data, significantly improving data reliability.Technologies Languages & Tools: Full-stack Python (data analysis, databases, automation, web applications, APIs), SQL (Oracle), DBeaver Version Control & CI/CD: Git, GitHub, Octopus Deploy, scheduling tools (ActiveBatch, Task Scheduler) Cloud & Infra: Azure (AKS and related services), Lens Collaboration & Platforms: JIRA, Confluence, ZEMA (end-to-end data management platform), Microsoft Office
EDUCATION
Royal Holloway, University of London
Master in Science (MSci), Physics
ABOUT JUSTAS B.
Market data developer working in Glencore\'s market data team (energy marketing - commercial engineering); directly collaborating with several front and middle office teams (working directly with market risk, quant engineering, and IT teams).Currently working on projects related to data enablement, development, and quality - providing vital and clean streamlined market data, services and tools for internal stakeholders. Leading the development of several projects, including a price validation service for valuation risk to minimise market risk and enable model enhancements; and an integrable data lineage tool to easily visualise multiple streams of data.Contributions have extensively involved exposure in software development, automation, engineering, data, CI/CD, data enrichment, price validation and analytical solutions; mainly using Python and SQL. Large exposure to commodity markets (oil, gas, and power - some exposure to metal products) and trading.Personal public projectsGitHub: https://github.com/justas-bExpertise: Python, SQL, Excel, ZEMA, Docker, Automation, AKS, JIRA, ActiveBatch, Confluence, GitHub Workflows/Actions, Deployment, Commodity Markets (Oil, Gas and Power), Timeseries Financial Data, Market Risk, Financial Models, Financial Vendor quality and onboarding, Data Enablement, Data/System Migration and Reconciliation (incl. downstream services), PnL and Independent Price Validation, API design, development and maintenance.
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