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I Make Digital Experiences Come To Fruition.
I'm a Full-Stack Software Engineer who specialises in building websites and apps utilising the latest and greatest technologies to build amazing experiences.
About Me
Hi, my name's Tanvir. Thanks for taking the time to check out my portfolio :). I love building digital experiences ranging from websites to apps to building open-source software too. I use frameworks such as the likes of Next.js + React, as well as Node.js and Golang on the backend. Here is a list of technologies I have experience with or currently working with:
- ✦︎HTML & CSS
- ✦︎TypeScript
- ✦︎Java
- ✦︎C#
- ✦︎Go (Golang)
- ✦︎Angular
- ✦︎React, Next.js & React Native
- ✦︎Vue.js
- ✦︎Node.js
- ✦︎GCP & Firebase
- ✦︎AWS
- ✦︎Docker
- ✦︎RabbitMQ
- ✦︎Redis
- ✦︎Kestra
Work Experience
Senior Full-Stack Software Engineer @ @ Stonewell AI - Freelance
June 2025 - November 2025
https://stonewell.ai- ✦︎Architected and delivered end‑to‑end AI automation pipelines and bespoke web apps for a leading Dutch consultancy, supporting multiple high‑value enterprise clients and reducing manual operations by up to 50%+.
- ✦︎Owned the full SDLC as a solo engineer across several concurrent MVPs, using Next.js, Node.js and Supabase to cut typical delivery time from idea to production from ~4-6 months to ~1-2 months.
- ✦︎Integrated n8n, Docker, and external AI providers such as Botpress to orchestrate chatbots and automated workflows, improving response times and consistency for end users (e.g. <3 second replies, 24/7 availability).
Senior Full-Stack Software Engineer @ @ Automax - Freelance
December 2023 - February 2025
https://www.automax.tz- ✦︎Led development of a cross‑platform automotive marketplace (React Native + Node/backend) for the African market, enabling vehicle listings, rentals, and payments for 100+ active merchants and 100+ monthly users.
- ✦︎Reduced infrastructure overhead by >30% through strategic containerisation of services on DigitalOcean and implementing Redis caching for high-traffic endpoints.
- ✦︎Engineered a secure fintech module integrating card and mobile money payments; ensured 99.9% transaction success rates and PCI-compliance.
- ✦︎Achieved >90% test coverage by implementing TDD (Jest/Vitest), significantly reducing production regressions and improving code maintainability.
- ✦︎Designed and implemented a secure fintech module integrating card and mobile money payments via m-pesa and the likes, achieving 99.9% transaction success and meeting PCI‑compliance requirements.
- ✦︎Drove adoption of TDD with Jest/Vitest and raised automated test coverage to >90%, significantly reducing regressions and stabilising release cycles.
Senior Full-Stack Software Engineer @ @ Carzoko - Freelance
September 2024 - October 2024
- ✦︎Delivered an intuitive car rental platform (Next.js + Sanity CMS) enabling customers to send in queries to rent cars without any delays compared to prior manual processes, thus speeding up the process for the business by about 50%. This also contributed to a measurable acquisition of new customers by 2x.
- ✦︎Automated lead‑generation workflows using Resend and backend integrations, cutting average response times to rental enquiries and improving lead‑to‑booking conversion.
- ✦︎Managed deployment on DigitalOcean, ensuring high availability and painless scaling during traffic spikes with the deployment of a containerised approach on DigitalOcean’s App Platform.
Mid-Level Software Developer @ @ Zenobe - Full-Time
January 2023 - September 2023
https://www.zenobe.com- ✦︎Engineered the Ancillary Service Dispatch Platform (ASDP) from inception to production, unlocking £3k/day in new revenue by automating National Grid bidding for battery assets.
- ✦︎Built high‑availability serverless APIs with AWS Lambda, API Gateway, and EventBridge that met strict regulatory latency SLAs and resilience requirements.
- ✦︎Automated 100% of infrastructure provisioning via AWS CDK, eliminating manual configuration, reducing deployment time from hours to minutes, and enabling reproducible environments.
- ✦︎Worked in a cross‑functional squad (PM/BA/QA) to translate complex energy‑sector requirements into actionable features and tasks.
Full-Stack Software Developer @ @ BlackBlock - Contract
July 2022 - September 2022
- ✦︎Led technical stack selection and architecture for Web2/Web3 products, managing a small team of junior developers and interns to deliver production-ready features on tight timelines.
- ✦︎Designed and automated Algorand-based token distribution workflows, cutting manual airdrop processing time by around 80% and reducing operational risk.
Full-Stack Software Developer @ @ Citrust - Contract
January 2022 - June 2022
- ✦︎Directed end‑to‑end development of the company’s launch platform, working as a small team (Developer + UI/UX Designer) to ship high‑fidelity Zeplin designs into a production-ready Next.js frontend.
- ✦︎Built a Web3 news aggregation platform providing the latest Algorand blockchain news and projects for the founder’s Web3 community giving them accurate data and reliable sources of information. Which in turn helped grow the community >20%.
- ✦︎Implemented Algorand data‑scraping bots to aggregate blockchain data, improving platform data transparency and reducing manual data collection.
- ✦︎Integrated SendGrid and Contentful to automate content creation workflows, enabling non‑technical team members to manage marketing content.
- ✦︎Refactored a legacy React codebase, introducing InversifyJS and S.O.L.I.D. principles to improve modularity, testability, and long‑term maintainability.
- ✦︎Standardised development environments with Docker DevContainers, significantly reducing onboarding time and “works on my machine” issues for new engineers.
- ✦︎Delivered cloud‑native features with AWS Amplify and Cognito, providing secure, scalable user authentication and authorisation.
Junior Full Stack Developer @ @ Autolomous - Full time
August 2020 - September 2021
https://autolomous.com- ✦︎Implemented enterprise‑grade features for highly regulated industries using Angular 11+ and Java Spring Boot, adhering to strict compliance and quality requirements.
- ✦︎Created a reusable internal SASS-based CSS framework, ensuring consistent UI across multiple product lines and speeding up feature delivery.
- ✦︎Introduced automated Cypress end‑to‑end testing, cutting manual QA cycles by over 40% and catching regressions earlier in the pipeline.
Online Programming Tutor @ @ Tutorful - Self Employed
November 2019 - July 2020
https://tutorful.co.uk- ✦︎Teaching students of all ages to learn to code online.
- ✦︎Ensuring that students are given well-constructed lessons.
- ✦︎Providing resources and materials to help students learn in and outside of lessons.
Projects
Education
University of Westminster
BSc Computer Science
First Class Honours
2016 - 2019
1st Year
- ✦︎Programming Principles (Java)
- ✦︎Maths for Computing
- ✦︎Computer Science Practice
- ✦︎Computer System Fundamentals
- ✦︎Web Design and Development (HTML, CSS, JavaScript)
2nd Year
- ✦︎Game Engine Architecture (Unreal Engine 4, C++)
- ✦︎Object-Oriented Programming (Java)
- ✦︎Database Systems (MySQL, SQL)
- ✦︎Client-Server Architecture (Java)
- ✦︎Software Development Group Project (Java)
- ✦︎Mobile Application Development (Java)
3rd Year
- ✦︎Enterprise Application Development (C#)
- ✦︎Security and Forensics (Cyber Security)
- ✦︎Final Year Project (Unity Engine, C#)
- ✦︎Advanced Interactive Media Development (Unity Engine, C#)
- ✦︎Business Intelligence (RStudio, R / Machine Learning & Neural Networks)
Harrow College
BTEC Level 3 Diploma in IT
Distinction/Distinction*
2014-2016
Rooks Heath College
GCSEs incl. Maths & English
C
2009-2013