Senior Full-Stack
Software Engineer
Building end-to-end SaaS & AI solutions that hold up in production.
I'm Haider Bukhari - a full-stack software engineer with 4.5+ years building and scaling production SaaS. 7 commercial products and 40+ applications shipped across React, Next.js, Node.js, NestJS, Python, and agentic AI - architecture through deployment.
- 7 commercial SaaS products shipped
- 800+ clinics · $220M+ orders processed
- 10,000+ applications screened by AI
- Available for hire · Remote worldwide
const engineer = {
name: "MUHAMMAD HAIDER BUKHARI",
role: "Senior Full-Stack Engineer",
focus: ["SaaS", "Agentic AI", "Distributed"],
stack: ["React", "Next.js", "Node", "NestJS"],
location: "United Kingdom / Remote",
experience: "4.5+ Years",
saasProductsShipped: 7,
hireable: true
};Otto - Eyecare Commerce Platform
Senior Full-Stack Engineer · NestJS microservices, PostgreSQL, and an LLM + RAG Copilot over patient and order data.
800+
Clinics
$220M+
Orders
32%
Sales lift
Haider Bukhari
4.5+ YRS · 7 SAAS PRODUCTS SHIPPED
Career Milestone
7 Commercial SaaS Products Shipped End-to-End
About Me
I'm Muhammad Haider Bukhari, a Senior Full-Stack Software Engineer with 4.5+ years spent building and scaling production SaaS platforms across web, cloud, and AI. I've shipped 7 commercial SaaS products - Otto, Base HR, Base Talent, Contello, Dex360, VOCS AI, and MathPi - plus 40+ full-stack applications.
My work covers full-stack development, distributed microservices, and agentic AI: React and Next.js frontends through to Node.js, NestJS, and Python backends, plus LLM, RAG, and multi-agent systems. I take products from first architecture and API design through cloud deployment, CI/CD, and monitoring - and I care about writing systems that stay fast and reliable in real use.
Right now I'm a Senior Full-Stack Engineer at Otto Optical Systems, building core services for an eyecare commerce platform powering 800+ clinics and $220M+ in processed orders. I'm based in the United Kingdom and work remotely worldwide.
Core Specialization Areas
What I build, end to end
Four areas I own from architecture and API design through deployment, CI/CD, and monitoring - each backed by systems running in production today.
Agentic AI & RAG
Multi-Agent Orchestration in Production
Multi-agent orchestration, tool calling, agent memory and guardrails, and RAG pipelines evaluated in production.
Multi-Tenant SaaS
Per-Tenant Isolation at Scale
Per-tenant isolation, RBAC and audit logging - Base HR runs 7 commercial clients on one deployment; Base Talent serves banks and enterprises.
Distributed Backends
Event-Driven Microservices
Distributed microservices and event-driven pipelines, with data models that stay correct under production load.
Cloud, DevOps & Web3
Ship It and Keep It Up
Zero-downtime deployments, CI/CD and observability - plus secure smart contracts and decentralised apps.
Technical Skills
The stack I use daily to design, build, ship, and operate production SaaS - frontend, backend, data, AI, and cloud.
Languages
Frontend Development
Backend & APIs
AI & Agentic Systems
Databases & Data
Cloud, DevOps & Quality
SaaS Products & Featured Projects
7 commercial SaaS products and 40+ full-stack applications - several serving live production traffic. Click any card for the architecture, the hard part, and the measured outcome.
Otto - Eyecare Commerce Platform
All-in-One Eyecare Commerce & Practice Automation · 2026 - Present
Otto is an all-in-one commerce and automation platform that eyecare clinics run their practice on: a branded online store, automated refill capture and reminders, contact-lens and OTC ordering, EMR and supplier integrations, vendor-rebate automation, drop-shipping, subscriptions, payments, and an AI Copilot that answers plain-language questions about patients, orders, and sales. I build the core services behind it - a distributed NestJS microservices backend on PostgreSQL with event-driven queues.
Base HR Platform
Multi-Tenant HR Management SaaS · Nov 2025 - Mar 2026
BASE HR is a multi-tenant HR platform covering the full employee lifecycle - onboarding, attendance, leave, payroll, performance, and internal workflows - with per-tenant data isolation. Built for 7 commercial clients managing 5,000+ employees, with real-time payroll and attendance engines, role-based access control, and audit logging on an API-first architecture.
Base Talent - AI Recruitment
AI-Driven Hiring SaaS Platform · Aug 2025 - Nov 2025
BASE Talent is an AI recruitment automation platform onboarded by banks and enterprise clients. It merges sourcing, automated screening, AI interviews, and assessments into one pipeline, using RAG-based agentic evaluation over a vector database to score candidates in context - then syncs hires straight into BASE HR.
Contello Content Engine
AI Content & Campaign Automation · Jun 2025 - Oct 2025
Contello is an AI marketing SaaS that automates the full content lifecycle - generation, scheduling, and publishing across 6+ social and ad platforms. Built on a serverless, containerised microservices architecture with LLM-driven content optimisation, Stripe billing, and deep Meta, Google, and LinkedIn API integrations.
Dex360 Marketing Agent
AI Performance Marketing Intelligence · Feb 2025 - Apr 2025
Dex360 is an AI marketing intelligence platform that analyses cross-channel ad data from Google, Meta, TikTok, Snapchat, and Google Analytics, then answers budget and performance questions in plain language. Agentic analysis runs through Claude MCP, helping brands cut wasted ad spend by up to ~30% without dashboards or spreadsheets.
VOCS AI Voice Platform
AI Voice Conversion & Audio Platform · Feb 2025 - Apr 2025
VOCS AI is a voice-to-voice platform where custom voice models are fine-tuned for singers, voiceover artists, narrators, and podcasters - capturing emotion, pitch, texture, and expressiveness rather than flat text-to-speech. Built on Dockerised GPU media pipelines with cloud storage and Stripe subscription billing for creator monetisation.
DocuMind AI
Intelligent Document Platform (RAG) · 2025
DocuMind solves the problem of teams drowning in unstructured documents. It ingests and OCR-scans files, auto-categorises them, and lets users query an entire archive in natural language - a full end-to-end RAG pipeline with vector search and automated evaluation, sharply cutting manual document-processing time.
MathPi.ai
AI Math Tutoring SaaS · 2025
MathPi is an AI math tutor that delivers step-by-step problem solving and adaptive, personalised learning through LLM integrations with real-time interaction - built on a scalable full-stack architecture with secure user management and dynamic problem generation.
Real-Time Network Anomaly Detection
AI & Blockchain Anomaly Detection Framework · 2024
A desktop real-time anomaly detection framework combining AI-based monitoring with blockchain-based auditability. The backend is implemented in Rust for high-performance concurrent packet processing, while Solidity smart contracts log anomaly alerts and maintain verifiable, tamper-proof network integrity records on-chain.
Have an idea? Let's build.
Connect directly with Haider to translate your vision, cloud workflows, or custom AI agents into pristine, high-performing code.
Work Experience
4.5+ years of full-stack and AI engineering across SaaS, enterprise, and Web3 teams in Canada, the UK, and the US.
Senior Full-Stack Engineer
Building agentic AI solutions and distributed full-stack systems for an eyecare commerce platform serving 800+ clinics, on a microservices backend handling high-volume order processing. (Contello and Otto Optical Systems are two separate companies and products founded by the same founder.)
- ▸As part of the engineering team, develop agentic AI solutions using LLMs, autonomous multi-agent workflows, and AI orchestration frameworks.
- ▸Design and build scalable applications with React, Next.js, Node.js, NestJS, TypeScript, and Python on a distributed microservices backend.
- ▸Model and tune PostgreSQL for data integrity and performance under high-volume order processing.
- ▸Build secure REST APIs and microservices for high-availability production systems, wiring in AI services, automation pipelines, and third-party APIs.
- ▸Ship and run cloud infrastructure with Docker, AWS, and CI/CD, raising reliability through testing and monitoring.
Lead Full-Stack Developer
Led design, development, and rollout of scalable SaaS and AI-powered products from concept to production, and mentored the engineering team. (Contello and Otto Optical Systems are two separate companies and products founded by the same founder.)
- ▸Led full-stack delivery across React, TypeScript, Node.js, NestJS, Python, PostgreSQL, and cloud infrastructure.
- ▸Built content generation, scheduling, and publishing pipelines pushing campaigns across 10+ social and ad platforms.
- ▸Added AI-driven features backed by LLMs, agentic automation workflows, and data intelligence.
- ▸Hardened performance, security, and reliability across products, and wired in Stripe billing and third-party APIs.
- ▸Mentored developers, ran code reviews, and managed CI/CD, cloud infrastructure, and DevOps for fast, reliable releases.
Senior Associate Full-Stack Developer
Built full-stack web applications and folded AI tooling into enterprise products, leading multi-agent initiatives and cloud-native architecture work.
- ▸Led initiatives using LangChain, CrewAI, and AutoGen for multi-agent, autonomous workflows and technical proofs-of-concept.
- ▸Designed cloud-native, microservices-based systems on AWS and GCP with event-driven architecture.
- ▸Worked in Agile teams, mentored junior developers, and managed DevOps, testing, and deployment workflows.
Full-Stack Developer / Developer Advocate
Built high-performance APIs and scalable AI agent architectures for multi-agent orchestration and autonomous workflows, plus developer-facing tooling and documentation.
- ▸Engineered scalable AI agent architectures for multi-agent orchestration and autonomous workflows.
- ▸Prototyped emerging AI frameworks and produced developer tooling, documentation, and integration examples.
- ▸Untangled complex Python and NPM dependency ecosystems, tightening packages and deployment pipelines.
Full-Stack Developer
Built full-stack applications with complex, scalable architectures serving production workloads, shipping robust REST APIs and responsive frontends.
- ▸Delivered production applications on complex, scalable service architectures.
- ▸Shipped robust REST APIs and responsive frontends, lifting reliability and maintainability across services.
Blockchain Developer (Contract)
Built decentralised applications and deployed smart contracts across EVM-compatible networks, including a full NFT marketplace.
- ▸Deployed gas-conscious Solidity smart contracts across EVM-compatible networks.
- ▸Built an NFT marketplace supporting collection creation, minting, and digital asset management.
MERN Stack Developer (Contract)
Built scalable MERN applications with distributed architectures and cloud-native deployments on AWS and GCP, plus on-chain trading systems.
- ▸Built distributed MERN applications with cloud-native deployments on AWS and GCP.
- ▸Built DEX mechanisms, liquidity pool integrations, and smart-contract-based trading systems.
Frequently Asked Questions
What hiring managers, founders, and recruiters ask most before getting in touch.
Is Haider Bukhari available to hire as a senior full-stack developer?
Yes. Haider Bukhari is available for senior full-stack, founding engineer, and AI engineering roles - full-time, contract, or fractional - working remotely worldwide from the United Kingdom. The fastest route is the contact form on this page or an email to haider100xdev@gmail.com.
What is his experience as a full-stack engineer?
4.5+ years building and scaling production SaaS. He has shipped 7 commercial SaaS products - Otto (ottooptics.io), Base HR, Base Talent, Contello, Dex360, VOCS AI, and MathPi - plus 40+ full-stack applications, several serving live production traffic.
Which tech stack does he build on?
React, Next.js, and TypeScript on the frontend; Node.js, NestJS, Express, FastAPI, Python, and Go on the backend; PostgreSQL, MongoDB, Redis, and vector databases for data; and AWS, Docker, Kubernetes, Terraform, and GitHub Actions for cloud and CI/CD.
Does he build AI agents and RAG systems?
Yes. He architects agentic AI systems with LangChain, LangGraph, CrewAI, AutoGen, the OpenAI Agents SDK, and MCP - covering multi-agent orchestration, tool and function calling, RAG pipelines over Milvus, Zilliz, Pinecone and Qdrant, agent memory, guardrails, and LangSmith-based evaluation, all in production products.
What measurable results has he delivered?
Core systems for Otto, an eyecare commerce platform powering 800+ clinics and $220M+ in processed orders with a 32% average lift in contact-lens sales; a multi-tenant AI hiring platform screening 10,000+ applications and cutting time-to-hire by an estimated ~40%; and a multi-tenant HR SaaS running the full lifecycle for 5,000+ employees across 7 commercial clients.
Can he own a product end to end?
Yes. He takes products from first architecture and API design through cloud deployment, CI/CD, and monitoring - including database modelling, payments and third-party integrations, multi-tenant isolation, testing, and production observability.
Does he work with startups and founding teams?
Yes. He has led delivery as a lead and founding-style engineer on early-stage SaaS products, several under evaluation by early-stage VCs, and works comfortably as the first or most senior engineer defining architecture and shipping the MVP.
How do you get in touch?
Email haider100xdev@gmail.com, call or message on WhatsApp at +44 7438 690340, connect on LinkedIn at linkedin.com/in/mhaiderbukhari, or submit the contact form on haiderbukhari.dev for a tailored proposal. WhatsApp usually gets the fastest reply.
Still have a question?
Message on WhatsApp for the fastest reply, or email haider100xdev@gmail.com.
Hire Haider Bukhari
Open to senior full-stack, founding engineer, and AI engineering roles - full-time, contract, or fractional - remote worldwide. Reach out directly, or send a project brief below and I'll reply with a tailored proposal.