Truth can only be found in one place: the code.

Robert C. Martin

Robert Quainoo, Senior Full Stack Engineer

Hi, I'm Robert - Senior Full Stack Engineer.

I build scalable SaaS platforms, high-performance APIs, and AI-powered product experiences.

Download Resume

Over the past 6+ years, I have shipped full-stack systems across creative tools, logistics, and internal platforms, turning complex product ideas into reliable software.
My core stack is Node.js, TypeScript, React, MongoDB, and AWS, with a strong focus on backend architecture, cloud infrastructure, and performance at scale.

I work best where engineering depth meets product thinking: designing robust systems, shipping quickly, and improving reliability, cost efficiency, and user experience.

Experience

A quick timeline of teams and products where I shipped impactful software.

  1. Pixlr

    2022 - Present

    Senior Full Stack Engineer

    • Building AI-powered creative tools used by millions of users globally, integrating image generation, editing, and real-time processing workflows.
    • Architecting and scaling full-stack systems using React, TypeScript, Node.js, and AWS (EC2, Lambda, S3), improving performance, reliability, and deployment velocity.
    • Designing backend services, APIs, and data pipelines to support high-volume traffic and AI workloads while optimizing infrastructure cost and system efficiency.
  2. Swoove

    2020 - 2022

    Full Stack Engineer

    • Built and scaled a logistics and fleet management platform supporting delivery operations, real-time tracking, and route optimization.
    • Designed APIs and backend systems for dispatching, pricing, and analytics using Node.js, MongoDB, and cloud infrastructure.
    • Implemented system-wide optimizations including database indexing, aggregation pipelines, and infrastructure tuning to improve performance and reduce operational cost.
  3. Independent Projects

    2018 - 2020

    Full Stack Engineer

    • Delivered production-ready web applications for startups, handling full lifecycle from architecture and development to deployment.
    • Built scalable backend systems and reusable frontend architectures, enabling faster iteration and long-term maintainability.
    • Worked across multiple domains including SaaS platforms, dashboards, and API integrations.

Core Expertise

High-Impact Engineering Strengths

1

Backend Systems (Node.js, TypeScript)

2

Cloud Infrastructure (AWS: EC2, Lambda, S3, ELB)

3

Database Design (MongoDB, Aggregation Pipelines, Indexing)

4

AI Product Integration (Image Generation, Prompt Systems)

5

Scalable SaaS Architecture

6

API Design & Distributed Systems

Projects

A selection of products where I led or contributed key engineering work across architecture, backend systems, frontend delivery, and platform scalability.

Pixlr
Pixlr

AI Image Generator and AI Design tools

Contributed to the full-stack architecture behind Pixlr's AI-powered creative tooling, building production features across React, TypeScript, Node.js, and AWS to support large-scale image generation and editing workflows.

React

Typescript

NodeJs

Express

MongoDB

Swoove Delivery
Swoove Delivery

Empower Logistics with Software Solutions

Built core logistics platform capabilities for dispatch, tracking, pricing, and operational workflows, helping scale Swoove's delivery infrastructure with reliable backend services and product-facing features.

React

Typescript

NodeJs

Express

MongoDB

Curiashops
Curiashops

Let's Go Global Together

Developed key commerce platform functionality spanning storefront experiences, backend workflows, and integrations, helping merchants manage products and sell across multiple digital channels.

React

NodeJs

Express

MongoDB

Thryll
Thryll

Amazing Experiences Around You

Built product and platform features for an event services application, covering backend logic, admin workflows, and user-facing experiences required to support event discovery and organizer operations.

EJS

NodeJs

Express

MongoDB

Skills

Grouped by domain and backed by real production work across frontend delivery, backend systems, cloud infrastructure, and testing.

Frontend

React

Strong production experience

Built production-facing interfaces and workflows across Pixlr, Curiashops, and Thryll.

Frontend

TypeScript

Daily use

Used TypeScript extensively to build scalable, maintainable frontend applications and shared product logic.

Backend

Node.js

Strong production experience

Designed and implemented backend services supporting high-traffic systems across Pixlr and Swoove.

Backend

Express

Built and shipped with this

Used Express to structure APIs and backend services for logistics, commerce, and platform workflows.

Backend

MongoDB

Strong production experience

Modeled and queried operational data across logistics and SaaS platforms, including analytics-oriented workloads.

Backend

API Design

Strong production experience

Architected internal and external APIs, including developer-facing endpoints for logistics integrations.

Infrastructure

AWS

Strong production experience

Built and operated cloud-backed systems supporting AI workloads, backend services, and platform scalability.

Infrastructure

Cloud Architecture

Built and shipped with this

Designed scalable service patterns for high-volume applications, including image workflows and delivery operations.

Testing

Jest

Working knowledge

Used Jest to validate frontend and backend logic in production-oriented JavaScript and TypeScript codebases.

Coding Activities

Check out what i have been doing in the last 30 days