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Muhammad Ali Anjum

@muhammadalianjum1

Senior Backend & Applied AI Engineer at Toptal, connecting AI lead qualification to HubSpot sales workflows.

At Toptal, I implemented AI-assisted lead qualification with OpenAI, Grok, and LangChain, connecting scoring and routing logic to HubSpot sales workflows. I also developed onboarding, checkout, and failed-payment recovery across Stripe, Apple Pay, PayPal, HubSpot, and PandaDoc.

In independent client work through Upwork, I cut a PostgreSQL dashboard from about 15 seconds to about 2 seconds and reworked MongoDB reporting across 26.6 million records. I also replaced a sequential ticket scraper with concurrent processing, reducing its runtime from about 5 minutes to 15 seconds.

Experience

Work history, roles, and key accomplishments

Full-Stack Developer → Technical Team Lead

Toptal Client

May 2023 - Sep 2026 (3 years 4 months)

Progressed from full-stack developer to technical team lead, owning production backend systems, integrations, payments, and operational workflows. Implemented AI-assisted lead qualification and developed onboarding, checkout, and business automations.

NodeJS TypeScript Fastify Prisma PostgreSQL Svelte Redis BullMQ Google Cloud Platform OpenAI Grok Lang Chain HubSpot Stripe Apple Pay PayPal Pandadoc Grafana PostHog

Backend / Full-Stack Engineer

Independent Client Work through Upwork

Aug 2022 - Apr 2023 (8 months)

Reduced a Node.js/Prisma/PostgreSQL dashboard from about 15 seconds to about 2 seconds using materialized views and pre-aggregation. Reworked MongoDB reporting across 26.6 million records and replaced a sequential Puppeteer scraper with Axios, Cheerio, and concurrent execution, reducing runtime 20x.

NodeJS Prisma PostgreSQL MongoDB NestJS GraphQL Axios Cheerio TensorFlow AWS CI CD

Full-Stack Developer

Spindox S.p.A.

Jan 2021 - Apr 2022 (1 year 3 months)

Developed and operated Node.js/Express REST services with Swagger and Oracle for Vodafone Italy, including migration of existing PHP functionality to Node.js. Worked across CI/CD, automated testing, containerized delivery, and production observability.

NodeJS Express Swagger Oracle Jenkins Docker Bitbucket Mocha Chai Grafana Prometheus Loki

Full-Stack Developer / Engineer

Awesomebox Technologies

Aug 2016 - Dec 2018 (2 years 4 months)

Built an IT-assistant product, Node.js REST APIs, an NW.js Windows application, and Elasticsearch-powered text search.

NodeJS REST APIs NW.Js Elasticsearch

Software Design Engineer

TeReSol Pvt Ltd

Nov 2015 - Jul 2016 (8 months)

Developed Node.js/Sails services for real-time GPS tracking, handled tracker workflows, and built reusable Express/Backbone/MySQL foundations. Contributed to biometric verification work associated with the National Bank of Pakistan.

NodeJS Sails Express Backbone MySQL GPS Tracking Biometric Verification

Node.js and Ionic Developer

Early Freelance Work

Jan 2014 - Dec 2015 (1 year 11 months)

Built Node.js backends and Ionic cross-platform applications for freelance clients.

NodeJS Ionic

Education

Degrees, certifications, and relevant coursework

Politecnico di Torino

Master's Degree, Computer Engineering

2017 - 2019

Grade: 101/110

Master's Degree in Computer Engineering from Politecnico di Torino, with a grade of 101/110. Thesis on WiFi access with eIDAS for cross-border authentication.