Services

Production-Grade Engineering

Full-stack development backed by ~350K LOC of production code, an O'Reilly book on prompt engineering, and experience teaching 306K+ developers taught.

Why Me

Experience That Matters

Proven at Scale

Built systems processing 7K daily queries with capacity to scale to 100K.

Full Observability

Real-time dashboards and alerts. Issues visible before they affect users.

Clear Communication

Teaching 306,000+ developers requires explaining complex systems simply.

Single Owner

Architecture through deployment. No handoffs between teams.

Client Reviews

What Clients Say

More reviews on Google
Rhys Fisher
Rhys Fisher
James has been a key measurement partner for a number of years. While running a boutique analytics agency, I would bring Just Understanding Data into a number of growth transformation projects at a time, across a portfolio of B2B SaaS and D2C E-commerce clients. These projects involved solving a diverse set of challenges. Together we worked on bespoke data collection solutions, applying machine learning models to marketing challenges, and surfacing often complex ideas into easy to digest actionables that clients could act on. James is well spoken and handles client communications well. His super power is being able to create a shared understanding around the insights drawn with analytics. Without James, you’ll be leaving growth on the table. 5* recommendation from me.
Shuaib Ahmed
Shuaib Ahmed
James is literally a legend! I asked him to perform a web scraping task that was quite tedious revolving academic abstracts and he literally did it within a week after posting the gig. He also went above and beyond and gave me tips on applying NLP techniques which worked out quite well for my solution the month after. I would highly recommend working with him for any of your data collection needs or if you just need tips/help solving any Data Science issues!
Jeanne Keith Felipe
Jeanne Keith Felipe
James is a very nice and professional person to do business with. He doesn't mind explaining technical information to give you a clearer picture of how online business works. He has a great work ethic and I'm sure Insight Jar will go far

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