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Jakub GajtkowskiJG
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Jakub Gajtkowski

@jakubgajtkowski

Engineering Lead at TrackSights who built its architecture from scratch and shipped AI-powered fleet imports.

Poland
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At TrackSights, I designed and implemented the system architecture from scratch, establishing coding standards, documentation, and CI/CD pipelines. I also shipped AI-powered imports that turn fleet files into structured vehicle records.

I led TrackSights’ Stripe billing overhaul, migrating the customer base to automated billing and cutting invoice management time by 80%. I also drove AI adoption across engineering, including AI-assisted code review and agent context file standards.

At Contractbook, I owned technical direction for the Editor and Signing Flow, and led the Forms project end to end, reducing the average time to create a contract by 40%. Across SaaS products, I learn the domain before designing, keep solutions small, and write documentation the next person needs.

Experience

Work history, roles, and key accomplishments

CR

Senior Software Engineer

Craft.co

Oct 2024 - Feb 2025 (4 months)

Designed a deferred computation system on AWS Lambda for supplier portfolios, improving scalability and responsiveness. Drove architectural improvements and cross-team collaboration.

CO

Technical Team Lead

Contractbook

Oct 2020 - Oct 2024 (4 years)

Owned technical direction of Editor and Signing Flow, lifting user satisfaction by 20%. Led cross-functional teams and shipped smart document import.

CO

Senior Software Engineer

Contractbook

Jan 2019 - Oct 2020 (1 year 9 months)

Led the Forms project end to end, cutting contract creation time by 40%. Introduced real-time collaboration using Phoenix Channels.

TH

Senior Software Engineer

ThinkSmart

Nov 2017 - Dec 2018 (1 year 1 month)

Built an in-house boilerplate unifying front-end and back-end setup, cutting project start time. Coordinated backend development and optimized response times by 20%.

TE

Senior Software Engineer

Techstep

Jul 2016 - Nov 2017 (1 year 4 months)

Led web UI development for real-time device monitoring and location tracking, cutting clients' operational costs by 15%. Built Remote Access on Node.js backend.

Intel logoIN

Software Engineer

Sep 2015 - Jun 2016 (9 months)

Designed architecture and built front-end applications streamlining Intel's ALM processes. Improved performance and stability of migration scripts, cutting reported issues by 60%.

Education

Degrees, certifications, and relevant coursework

Gdansk University of Technology logoGT

Gdansk University of Technology

Bachelor of Science, Applied Mathematics

2012 - 2017

Studied Applied Mathematics at Gdansk University of Technology from 2012 to 2017.

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