Open to opportunities

John O'Farrell

@johnofarrell

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Full‑stack software engineer specializing in AI-driven data pipelines and cloud infrastructure.

United States

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What I'm looking for

I’m seeking a role where I can build AI-enabled data platforms and scalable pipelines, work across product and engineering, and contribute to cloud infrastructure and automation in a collaborative startup or growth-stage team.

I am a full‑stack software engineer with deep experience building AI-powered data pipelines, APIs, and cloud infrastructure for startups and contractor engagements. I’ve contributed to early‑stage products using Next.js, Fastify, Python, and large language models (GPT, Claude, Gemini), and I’ve implemented ingestion, extraction, and composition workflows processing hundreds of GBs of data.

I’ve been an early employee at startups, owned core engineering infrastructure, and managed cloud setups in GCP and AWS. I’m passionate about solving interesting problems, and I enjoy collaborating across product and business teams to ship impactful solutions.

Experience

Work history, roles, and key accomplishments

Software Engineer

Raylu

Mar 2025 - Jul 2025 (4 months)

Contributed AI-powered deal-sourcing and diligence features using GPT/Claude/Gemini and built Python data pipelines ingesting hundreds of GBs; provisioned GCP infrastructure and integrated Temporal and Modal to support scalable data workflows.

Python Next.js Fastify GCP Temporal Data Ingestion AWS

Software Engineer

Noldor

Nov 2021 - Aug 2024 (2 years 9 months)

Employee #3 who built core engineering infrastructure and APIs to standardize insurer/MGA data, owned Python data pipelines transforming insurance datasets, and supported automated data delivery using Postgres, Auth0, Docker and AWS.

Python PostgreSQL AWS Flask Docker Pandas SQL Data Pipelines Auth0

Full-Stack Developer

Premia Holdings Ltd.

Jun 2020 - Oct 2021 (1 year 4 months)

Contracted to design and implement a claimant-data integration platform, developing MySQL-backed databases, Angular 10 front end and Python back end, and deploying the solution on AWS.

Python MySQL Angular AWS REST APIs Deployment Data Integration

Education

Degrees, certifications, and relevant coursework

University of Pennsylvania

Bachelor of Applied Science, Computer Science

2016 - 2020

Activities and societies: Built machine learning models, Android app development, full-stack web/database projects

Bachelor of Applied Science in Computer Science with a Minor in Political Science; projects included ML models, an Android app for clubs, and a full-stack relational statistical database website.