John Crickett
Founder CTO Software Engineering Trainer And Coach at Coding Challenges
Bath, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolJohn Crickett is a veteran software engineering leader and founder with 25+ years of hands-on engineering experience and two decades of leadership from Engineering Manager to VP Engineering/CTO. He specialises in turning underperforming teams into confident, high-performing organisations, aligning technology strategy with commercial outcomes informed by an MBA and founder experience. Equally comfortable in startups and multi-billion-dollar enterprises, John has shipped AI-driven products across evolutionary algorithms, optimisation, neural nets and LLMs, and has applied LLMs to software engineering problems for several years. He combines deep technical breadth—from C++ low-latency systems and Python data engineering to AWS serverless and TypeScript—with a servant-leader coaching style, delivering training and weekly coding challenges to help engineers level up. Based in Bath, UK, he also hosts a podcast and regularly takes interim CTO roles, bringing board-level perspective to engineering decisions. A pragmatic problem-solver, he’s known for blending academic rigour and practical delivery to create measurable business impact.
11 years of coding experience
25 years of employment as a software developer
BSc (Hons), Computer Science, BSc (Hons), Computer Science at Swansea University / Prifysgol AbertaweGiggleswick SchoolRammilies Hall SchoolExecutive Education, High Performance People Skills for Leaders, Executive Education, High Performance People Skills for Leaders at London Business SchoolMaster of Business Administration (MBA), Business, Master of Business Administration (MBA), Business at University of Leicester
Stackoverflow
61reputation
2kreached
2answers
1question
Github Skills (38)
euler10
javascript10
python10
architecture10
null-safety10
perl10
dub10
cpp10
scipy9
sandbox9
pandas9
scikit-learn9
dask9
golang9
pydata9
Programming languages (6)
Github contributions (5)
JohnCrickett/SystemDesign
Mar 2022 - Apr 2025
Useful resources on distributed system design.
Contributions:3 reviews, 5 PRs, 39 pushes in 3 years 2 months
distributed-systemsarchitecture
CodingChallengesFYI/SharedSolutions
Sep 2023 - May 2026
Publicly shared solutions to Coding Challenges
Contributions:459 reviews, 436 PRs, 473 pushes in 2 years 8 months
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