John Adib

Engineering Manager · 2x Founder · Former CTO · AI & Cloud

London · UK Settled Status

Engineering leader with deep technical expertise and 17+ years building and scaling products, teams, and platforms. Co-founded a product that reached 1M users in 30 days. Architects and operates production AI/ML systems and embeds agentic AI into engineering workflows. Leads teams with end-to-end ownership of delivery, impact, and reliability. UK Global Talent endorsed and tech conference speaker.

Experience

Engineering Manager, Consumer

(6 months) -

· Series B B2C quick-commerce company with £100M+ annual revenue and $300M+ raised

Full-time · London
  • Shipped post-checkout Additional Items feature, driving +23% revenue on amended orders.
  • Engineered an 8-skill AI coding suite carrying a ticket to a reviewed PR with screenshot and video evidence, adopted org-wide.
  • Accelerated iOS and Android release cadence from monthly to weekly, shipping 10+ versions.
  • Introduced Maestro end-to-end testing in CI with smoke and nightly runs, growing coverage steadily from zero.
  • Led the biggest SEV1 in company history, then built the company-wide incident function, severity framework, and SOP.
  • Authored the levelling and pay bands for the entire engineering job family.
Tech Stack:
TypeScript, Node.js, Python, React, React Native, Expo, EAS, Unistyles, Tamagui, Next.js, GCP, Cloud Run, Pub/Sub, Firestore, Terraform, GitHub Actions, Turborepo, incident.io, Sentry, Statsig, Mixpanel, Adyen, Maestro, Playwright, Vitest, Storybook, Chromatic, GraphQL, Django, Algolia

Senior Software Engineer, Operations

(1 year 5 months) -

Full-time · London
  • Developed a reusable design system with 90 tested components, integrated into 5 services in production.
  • Launched an enterprise auth panel with passkeys and 10+ RBAC roles in 3 days with AI, edge-deployed to 3 envs.
  • Migrated CI/CD from CircleCI to GitHub Actions, achieving instant, 100% reliable deployments and 80% faster deploys.
  • Boosted platform performance with 60% faster load times across all pages and 80% better homepage LCP.
  • Established E2E tests covering 100% sensitive flows in CI/CD, reducing validation time and boosting release confidence.
Tech Stack:
TypeScript, Node.js, GCP, Pub/Sub, CircleCI, Algolia, GitHub Actions, Material UI, Firebase, Firestore, Next.js, React.js, Playwright, NestJS, Terraform, Vitest, Jest, Chromatic

Senior Lead Software Engineer

(2 years 1 month) -

· B2C/B2B family events marketplace and booking SaaS platform

Full-time · London
  • Led development of a booking platform with 10+ distinct designs and drove OKRs to establish a new revenue stream.
  • Automated deployment process with CI/CD, cut time from months to less than 10 minutes and ensured zero downtime.
  • Refactored E2E tests and designed 35+ Cypress tests, enhanced pipeline efficiency, performance and reliability.
  • Architected a pixel-perfect UI with Atomic Design, utilized Storybook with 1,000+ tests for high quality and scalability.
Tech Stack:
TypeScript, Node.js, GCP, Docker, Terraform, PHP, GitHub Actions, PostgreSQL, MongoDB, Prisma, React.js, Tailwind, Next.js, Express, Vue.js, Jest, Cypress, Playwright, Storybook, Chromatic

Co-Founder & CTO

(3 years) -

· B2B2C omnichannel e-commerce SaaS platform managing 132K+ products across web, mobile and POS

Full-time
  • Scaled an integrated cloud eCommerce platform (web, app, POS, CRM, accounting) to 1,200+ businesses.
  • Launched an automated app factory that generated a native Android shopping app without coding in less than 10 minutes.
  • Hardened security with WAF filtering and monitoring, blocking 99% of attacks, and ran a public bug-bounty program.

Head of Engineering

(1 year 5 months) -

· B2B EdTech SaaS platform serving 500K+ students and 2K+ teachers

Full-time
  • Led engineering team that delivered educational management system serving 500,000+ students and 2,000+ teachers.
  • Designed the database from scratch and built 150+ SPA functional modules with server-side rendering.

Principal Software Engineer

(1 year) -

· B2B SaaS startup for workforce attendance and time tracking

Full-time
  • Delivered an NFC-powered attendance system with interactive display and mobile check-ins, launched MVP in 2 months.

Co-Founder & CEO

(2 years 4 months) -

· B2B2C SaaS survey platform reaching 1M+ users/month and collecting 2M+ responses

Full-time
  • Built and led a 15-member cross-functional startup, launched a flagship product that rapidly scaled to 1M users in month one.

Computer Lecturer

(11 years 4 months) -

Teacher

Part-time
  • Taught 2,000+ students web technologies and ICDL across 4 universities, vocational colleges, and private classes.

Software Engineer

(3 years 11 months) -

Mixa · B2B2C cloud document management and archiving system

Full-time
  • Established a cloud archive solution that annually saves 1M+ documents and avoids waste of tons of paper.

Frontend Developer UI/UX

(3 years) -

Freelancer

  • Designed and deployed 40+ WordPress websites, improved user experience, and achieved a high SEO rank.

Personal AI & ML Engineering Projects

  • Automated a marketing pipeline that publishes 12 posts a day across 4 platforms, now an acquisition channel.
  • Shipped 200,000+ live pages across 12 languages, each with an auto-rendered localised preview image.
  • Eliminated hallucinated content by gating every AI proposal behind 8 automated verification stages and human approval.
  • Reframed 40,000+ video clips to vertical automatically, replacing manual editing with GPU active-speaker tracking.
  • Cut inference cost ~6x by routing each workload to the smallest capable model, holding spend flat as generation scaled.
  • Authored a full curriculum with an agent fleet, gated by 58 deterministic rules and a 6-pass AI-judge audit.
  • Built a Bayesian adaptive assessment engine placing a user in 12 questions, simulation-validated across every band.
Tech Stack:
Gemini, OpenAI, Ollama, ElevenLabs, MCP, PyTorch, CUDA, YOLO-pose, InsightFace, ONNX Runtime, MediaPipe, OpenCV, ffmpeg/NVENC, Remotion, sharp, Python, TypeScript, Node.js, Hono, Drizzle, Next.js, Expo, React Native, Swift, Kotlin, Turborepo

Skills

Leadership

Hiring, Coaching, Incident Management, OKRs, Levelling, Roadmaps, Prioritization, Stakeholder Management, Cross-functional Collaboration.

AI Engineering

LLM orchestration, agent orchestration, multi-step state management, prompt engineering, structured outputs, agentic pipelines, MCP.

RAG & Evaluation

RAG, embeddings, vector similarity search, pgvector, chunking strategies, LLM-as-judge, eval harnesses, hallucination gating.

AI Infrastructure

Gemini, OpenAI, Claude, Ollama, multi-provider failover, cost-tiered routing, rate-limit budgeting, GPU/CUDA inference, ElevenLabs TTS.

Machine Learning

YOLO pose, ArcFace face embeddings, MediaPipe, ONNX Runtime, OpenCV, active-speaker detection, Bayesian adaptive testing, spaced repetition.

Tech Stack

TypeScript, Node.js, Python, Bash.

API

REST, GraphQL, WebSocket, tRPC.

Web Framework

Express.js, NestJS, Fastify, Hono, Next.js.

Front-end JS Library

Vanilla JS, Vue.js, React.js.

Mobile

React Native, Expo, EAS, OTA, Sentry, Mixpanel, AppsFlyer.

CSS Framework

Tailwind CSS, Shadcn, Bootstrap, Material UI.

Test Suites

Cypress, Playwright, Storybook, Jest, Maestro, Vitest.

Infra

Terraform, Cloud Run, Kubernetes, Firebase, Edge, AWS, GCP.

Database

MySQL, PostgreSQL, MongoDB, Firestore.

ORM

Prisma, TypeORM, Drizzle, Mongoose.

Distributed Cache

Redis, Memcached.

CI/CD Automation

Docker, GH Actions, Turborepo, Monorepo.

Messaging and Monitoring

RabbitMQ, Elasticsearch, Pub/Sub.

Engineering Principles

SoC, SOLID, OOP, TDD, DRY, EDA.

Core Web Essentials

HTML, CSS, JavaScript, Crawl, SEO.

Volunteer work

Mentor - Software Engineering & Career Growth

(2 years 4 months) -
  • Mentored 600+ sessions, advising on roadmaps, best practices, and strategic decisions in technical and professional domains.
  • Earned 19 monthly and quarterly badges across Top 1% Engineering Mentor, Super Mentor, and Top 10 Front-End Mentor.

Judge - 2025 CODiE Awards

(1 year) -
  • Selected as a 2025 judge to evaluate top global software products, recognizing innovation and excellence in technology.

Mentor - Startup Accelerator

(6 months) -
  • Mentored 12 startups across Switzerland and UK cohorts on product, engineering, and go-to-market strategy.

CTO (Volunteer, Part-time)

(4 years 10 months) -

Khadije Charity

  • Founded and scaled the entire technical ecosystem from zero, engineered solutions that directly impacted 110,000+ lives.

Expert - Software Solutions for Business

(5 years 3 months) -

WorldSkills IR

  • Coached and trained 3 national medalists; Managed second stage of national team camp for WorldSkills Sao Paulo 2015.

Education

M.S. in Information Technology Management

-

Azad University · Part-time

B.S. in Computer Software Engineering

-

Azad University · Part-time

Talks and Speaking

The Compound Effect of Guardrails in the Era of AI

JavaScript London at NewDay - 130+ engineers

Building an Enterprise Dashboard with AI: From Architecture to Production

Workshop at United Hacks V6 by Hack United - online

Optimizing Tech Operations: Managing Technical Debt While Integrating AI

Panel at TechLead Conf London 2025

AI-First Architecture: Why Single Responsibility Matters More Than Ever

AI Coding Summit 2025 by GitNation - online, 800+ engineers

Turning Chaos into Control with Cloudflare

LNUG #110 at Cloudflare London - 90+ engineers

Design Systems, AI, and the Art of Separation of Concern

React Advanced London at Figma - 120+ engineers

Awards and Honors

The World's Most Influential Mentors

Honored in ADPList100 among leading global mentors

#1 Mentor in Europe - ADPList Mentor of Year

Recognized for impactful contributions to mentorship

UK Global Talent Visa - Tech Nation

Endorsed as an exceptional talent and global leader in tech

Recognized as a National Elite

Awarded by IR National Elites Foundation for excellence

Silver Medal & Medallion for Excellence

WorldSkills IR - IT Software Solutions for Business