Kossi D. T. Saka

Professional photo of Kossi D. T. Saka

A problem-solver who builds full stack.

With over 15 years of hands-on experience, I don't just build software — I solve business challenges.

Senior product-focused engineer

My Developer Journey

A little bit about my background, skills, and journey as a developer.

I am a senior software engineer with over 15 years of hands-on experience delivering software that serves real business goals.

My journey started with backend systems, server operations, and self-managed infrastructure, then expanded into modern full-stack product development. That depth lets me move comfortably from architecture and data design to UX quality, performance, and launch reliability.

Today, I partner with startups and established teams to ship secure, scalable products, speed up delivery, and improve maintainability without sacrificing user experience.

What I optimize

Delivery speed, architecture clarity, and long-term maintainability.

How I work

Pragmatic, outcome-focused, and transparent from planning to production.

Key Skills

Capabilities over language buzzwords.

Frontend & Backend

Product engineering from architecture to delivery across modern web stacks.

TypeScript / JavaScriptNode.jsReactReact NativeAstroJSPHP

Databases & Caching

Data modeling and performance tuning for reliable, high-traffic applications.

MariaDBMySqlSQLiteMemcachedConvexMongoDB

Testing

Confidence through pragmatic automated testing and quality gates in CI workflows.

VitestPuppeteerPlaywrightCypressJest

DevOps & Server Administration

Production-ready deployment, monitoring, and operational stability practices.

Server AdministrationDockerGitGitHubGitLabGitLab CI/CD

Platform Integrations & Specialties

Revenue-driving integrations such as Stripe, AI tooling, and external services.

Stripe (Payments)AI (OpenAI, Google Cloud AI, etc.)LaTeX

At a Glance

A snapshot of delivery impact over the years.

  • 15+
    Years of Experience
  • 50+
    Projects Completed
  • 25+
    Companies Helped

Consulting & Services

Leverage my expertise to enhance your projects, improve performance, and achieve your business goals.

Tech Audits & Stack Improvements

Get a comprehensive review of your codebase, architecture, and tech stack with actionable recommendations for improvement.

AI Integration & Automation

Integrate modern AI solutions such as natural language processing, machine learning models, and automation tools to enhance your products and workflow.

Data Science & Analytics

Unlock insights from your data through custom dashboards, predictive analytics, and data visualization tailored to drive business value.

Stripe Payment Integrations

Expert integration of Stripe for one-time payments, subscriptions, and complex billing logic.

WordPress Plugin Customization

Custom development and modification of WordPress plugins to meet your specific requirements.

Performance & SEO Enhancements

Optimize your website for speed and search engines to improve user experience and visibility.

Let's connect

Get in Touch

Ready to solve your challenge? Let's talk. I'm currently available for consulting and new projects.