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Software Engineer · Full-Stack & Platform Engineering · United States (Remote)

I Build Production Systems
End-to-End

Solo-built and operated a globally distributed platform — 100 servers across 20 countries, 5,000+ paying subscribers, 100K+ transactions. Full-stack and platform engineer with 10 years of experience shipping across the entire stack: TypeScript, React, Node.js, PostgreSQL, Docker, Kubernetes, AWS. Available immediately. U.S.-based entity — no visa sponsorship needed.

United States (Remote) · Open to Relocation · Top 1% StackOverflow · Available Immediately


Track Record

What I've Built

Production systems across the full stack — backend APIs, cloud infrastructure, frontend experiences. I've built platforms that scale, led teams that ship, and operated infrastructure that stays up.

Technical Lead & Engineer · Solo Project Sep 2023 – Mar 2026

Radshim

Built and operated a globally distributed subscription platform as sole developer. Designed and ran a 100-node server fleet across 20 countries on Linux — provisioning, load balancing, health checking, automated failover, and zero-downtime deployments. Scaled to 5,000+ paying subscribers and 100K+ transactions. Full codebase published as open-source on GitHub. Platform paused due to regional internet restrictions.

NestJS GraphQL Next.js PostgreSQL Docker Prometheus Nginx Linux
Senior Software Engineer Dec 2022 – Dec 2024

Cobl (formerly Thinkeo)

AI document generation startup, Paris. Contributed across product, platform, and AI-powered features. Built and shipped core features using Node.js, React, and TypeScript. Owned CI/CD pipelines, containerized deployments, and AWS infrastructure. Work directly supported the company's first $1M fundraise.

Node.js React TypeScript Python CI/CD Docker AWS GitHub Actions
CTO Dec 2019 – Dec 2022

Pelas

Real estate technology platform serving the agency market. Designed multi-tenant SaaS architecture serving 4,000+ B2B customers. Built CI/CD from scratch: Docker containerization, automated testing, deployment pipelines, production monitoring. Established coding standards, ran architecture reviews, and coordinated cross-team delivery.

Node.js React PostgreSQL Docker AWS Terraform CI/CD
Senior Software Engineer Jan 2018 – Dec 2019

Goki (backed by Hostelworld)

Product company backed by Hostelworld. Product team doubled revenue in the first year — recognized by founders as a standout contributor. Drove a company-wide codebase refactoring initiative that improved maintainability and developer velocity. Built component libraries and complex UI features with React and TypeScript.

React TypeScript Node.js Next.js AWS Docker Jest

By the Numbers

13M+

Developers Reached on StackOverflow (Top 1%)

100K+

Platform Transactions Processed

5,000+

Paying Subscribers at Scale

100

Self-Managed Nodes, 20 Countries

$1M

Fundraise Enabled via Technical Contributions

10+

Years of Production Experience


What People Say

From People I've Worked With

"Masih was a standout engineer at Goki. During his time with us, our product team doubled revenue, and Masih was a key contributor to that result. Beyond his strong technical skills in React, TypeScript, and Node.js, he elevated the entire engineering organization — leading coding standards, running design reviews, and mentoring developers across the team. He also drove a company-wide refactoring initiative that significantly improved maintainability and development speed. I'd recommend Masih highly for any senior engineering role."

Arash Karimzadeh

Arash Karimzadeh

Founder & CTO, Goki (backed by Hostelworld)

"Masih is a versatile, reliable senior engineer. At Thinkeo, he delivered across the full stack — Node.js backend services, React frontend, Docker containerization, and cloud infrastructure. He automated our build and release processes, which made deployments faster and more consistent for the entire team. He also mentored other engineers and contributed thoughtfully to system design decisions. I'd recommend Masih to any company looking for an engineer who truly owns what he builds."

Samuel Batissou Tiburcio

Samuel Batissou Tiburcio

CTO, Cobl.ai · Paris, France

"Masih was the technical backbone of Pelas during our early and growth stages. As CTO, he designed and built our multi-tenant SaaS platform from the ground up, while also hiring and leading a team of engineers. He established strong engineering practices — from CI/CD and infrastructure to code quality and architecture reviews. What sets Masih apart is his ability to combine deep technical expertise with strong leadership. I highly recommend Masih for any senior or leadership role — he brings both ownership and execution at a very high level."

Hossein Sajadinia

Hossein Sajadinia

Senior Software Engineer · Colleague at Pelas

"Masih was one of the most impactful engineers I worked with at Goki. He made a meaningful contribution to our growth, helped lift the standard of engineering across the team, and was someone others naturally looked to for guidance. He consistently combined strong technical ability with real ownership — building reusable component libraries, driving significant refactoring work, and delivering features with direct business impact. What stood out most was his initiative and maturity — he did not just complete tasks, he looked for ways to improve systems and raise the bar overall. I would confidently recommend him to any company looking for a strong full-stack or platform engineer."

Jack Bowcott

Jack Bowcott

CEO, Goki (backed by Hostelworld)

"Masih was one of the most impactful engineers I worked with at Goki. He made a meaningful contribution to our growth, helped lift the standard of engineering across the team, and was someone others naturally looked to for guidance. He consistently combined strong technical ability with real ownership — building reusable component libraries, driving significant refactoring work, and delivering features with direct business impact. What stood out most was his initiative and maturity — he did not just complete tasks, he looked for ways to improve systems and raise the bar overall. I would confidently recommend him to any company looking for a strong full-stack or platform engineer."

Mark Barati

Mark Barati

System Engineer, Electronic Arts (EA) · San Francisco, CA

"I feel lucky to have met Masih in my life! He was a key senior engineer at Thinkeo and someone I could always count on to deliver. It's more than precious! He owned complex features from architecture through deployment, contributed to our AI document generation pipeline, and brought our DevOps practices to a much higher standard. He doesn't just write code, NO — he thinks about the product and the business. Something no AI could do! His work had a real, measurable impact on our growth. Highly recommended for any senior or staff engineering role"

Mickaël Grente

Mickaël Grente

Co-founder, Cobl.ai · Paris, France


About

Who I Am

I'm a full-stack and platform engineer with 10 years of experience building and operating production systems end-to-end. Most recently, I designed, built, and solo-operated a globally distributed platform — 100 servers across 20 countries, 5,000+ paying subscribers, 100K+ transactions — handling everything from architecture and infrastructure to product development and incident response.

Before that, I was CTO at Pelas, a real estate SaaS platform: designed the multi-tenant architecture, hired and led a 15-person engineering team, and built the CI/CD and infrastructure stack from scratch. I also spent two years as a senior engineer at Cobl (formerly Thinkeo), an AI document generation startup in Paris, where my work directly supported their first $1M fundraise.

I'm comfortable across the full stack — TypeScript, React, Node.js, NestJS, GraphQL, PostgreSQL, Docker, Kubernetes, AWS, Terraform — and I'm just as happy designing system architecture as I am heads-down writing code and shipping features.

On StackOverflow, I've reached 13M+ developers and earned 11,000+ reputation — placing me in the top 1% globally, with 4 gold badges. See my profile →

Available immediately for full-time, contract, or consulting roles. U.S.-based entity — no visa sponsorship needed. Open to remote, hybrid, or on-site across the US, Germany, Netherlands, UK, and Canada.


United States (Remote) · Open to Relocation · B.Sc. Computer Engineering (Isfahan University of Technology) · No Visa Sponsorship Needed


Looking for my next role.

If you're building something ambitious and need an engineer who can own the full stack — from system architecture and backend services through infrastructure, deployment, and monitoring — I'd love to talk.

me@masihj.com