FINLAY
O'NEILL

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about_me

TLDR;Ibuildthings
I'vedesignedandmaintaineddatabases,datapipelines,websites,dashboards,machinelearningmodels,distributedapps,investmentportfolios,analyticaltools,andmore.I'veworkedasadataengineer,quantitativedeveloper,datascienceconsultanttonameafew.
Myprofessionalcareerbeganin2014-hackingawayinExcelVBAtoautomatespreadsheetreports.Sincethen,I'vebeenexploringtheboundsofwhatdataandcodecandotodriveinformeddecisionmaking,produceaestheticandintuitiveapplications,unlockvaluefromvastamountsofinformation,andoptimiseworkflows.
I'minterestedinthedecisionmakingprocess,whichhasledmuchofmycareer-bothintermsoftherolesI'veheldbutalsothetechnologiesandskillsI'vetaughtmyselfalongtheway.
I'veworkedinteamsofalldifferentsizesandindustries-frombigcorporatedivisionstosmallstart-upsquads.I'vebeeninroleswhereI'vementoredjuniorteammembersandotherroleswhereI'veproducedMIreportsforC-suiteexecutives.
experience

Python Developer

Columbia Threadneedle Investments10-2025 - Present

Working within the Investment Risk team on a contract basis, leading the migration of team workflows in coordination with a data migration to Snowflake. Tasked with standardising Python development practices across a globally distributed team to improve efficiency and eliminate redundant processes.

PythonSQLAWSAWS SageMakerSnowflakeJenkinsAladdin

Data Engineer

Aberdeen Investments03-2023 - 09-2025

Working within the Modelling & Quantitative Analytics department, tasked with democratising data across the company to ensure investment decision making is taken on the back of high-quality data sources. Developed data pipelines, dashboards and bespoke tools to support users to access and utilise data.

PythonSQLC#AzureAzure Data FactoryAzure DevOpsPowerBITeamCitySnowflakeTerraform

Quantitative Developer

Aberdeen Investments03-2022 - 03-2023

Based in the Quantitative Investment Solutions team, tasked with enhancing the portfolio analytics capabilities to understand the drivers of performance and exposure to risk factors. Specifically championed with developing capabilities to monitor portfolio changes ahead of trading.

PythonSQLAzurePowerBIBloombergFactsetAzure DevOpsSFTP

Data Engineer / Scientist

Forecast Global01-2021 - 03-2022

Consultant role working on projects with clients of different industries and sizes - ranging from building data pipelines for a FTSE100 telecoms firm to classifying promising sales leads using machine learning models for a small FinTech.

PythonSQLGCPBigQueryAirflowTableauDockerDBT
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