Software Engineer & Technology Leader

Jon Sakas

Principal Software Engineer building AI-powered SaaS products from concept to production, specializing in full-stack architecture, product delivery, and scalable cloud systems.

About

Jon Sakas

I'm a passionate software engineer and technology leader with over 15 years of experience building exceptional web and mobile applications. Currently serving as Principal Software Engineer at Cohesive.AI, I specialize in turning complex technical challenges into elegant, user-friendly solutions.

Throughout my career, I've led teams at companies like Beatport, Community, and Guest House, where I've combined technical expertise with strategic leadership.

My unique blend of technical skills and marketing knowledge allows me to create products that not only work flawlessly but also deliver real business value and exceptional user experiences.

—15+ years of professional development experience
—Specialized in React, TypeScript, Go, Node.js, Python, and PHP
—Based in Milwaukee, Wisconsin

Skills

Web Development & Design

TypeScript
JavaScript
HTML5
React
CSS
Sass
PostCSS
Tailwind
Shadcn/Radix
CSS-in-JS
Vue
Babel
Webpack
Vite
Adobe Creative Suite
Sketch
Figma

Programming & Database

Next.js
Python
Go
Java
Django
Flask
Node
Express
PHP
REST APIs
WordPress
MySQL
PostgreSQL
GraphQL
NoSQL
Linux
Shell
Bash
Docker/Compose
Vagrant
GCP
AWS
Firebase

Workflow & Productivity

Cursor & Claude Code
AI-Assisted Programming & Prompting
Test-Driven Development (TDD)
Large Language Models (LLM)
Continuous Integration & Delivery
Git
Agile
Kanban

Marketing, CRM & Analytics

Google Analytics
Mixpanel
HubSpot
Twilio
Salesforce Marketing Cloud (ExactTarget)
SendGrid
Segment
Looker

Selected Work

2024

Cohesive.AI

Lead frontend development on an enterprise AI SaaS platform using TypeScript, React, Go, MySQL, Terraform, and AWS. Own end-to-end delivery from technical design through production, and played a key role taking the product from internal POC to a self-serve SaaS platform.

TypeScriptReactGoAWSTerraform
Cohesive.AI

2022

Community

Conversational marketing platform where I led the Web Guild and improved web architecture, mono-repositories, and CI/CD pipelines.

ReactTypeScriptNode.js
Community

2021

Guest House Shop

Full e-commerce platform where I served as CTO, responsible for end-to-end delivery and maintenance of web apps and product infrastructure.

E-commerceLeadershipFull Stack
Guest House Shop

2014

Beatport

Flagship e-commerce platform serving over 5 million users. Built frontend component library (Beatport UI) powering 5 production applications.

ReactPythonLeadership
Beatport

2010

Merkle

Marketing technology partner where I led ten engineers alongside marketing managers—delivering mobile-first, device-driven campaigns for global brands and owning a proprietary internal web platform.

LeadershipMarketingWeb
Merkle

Open Source Contributions

Let's Connect

I'm always interested in hearing about new projects and opportunities. Whether you have a question or just want to say hi, feel free to reach out.

Location

Milwaukee, Wisconsin