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Fetsum.

Services

What I Do

From product development to AI integrations, I build software that solves real business problems.

AI & LLM Engineering

I build practical AI into real products, not just demos, from semantic search to conversational assistants.

  • LLM features (OpenAI API, LangGraph, Google Gemini)
  • MCP integrations and agent tooling
  • Semantic search and embeddings
  • Retrieval-Augmented Generation (RAG)
  • AI chatbots and copilots (Finley, Luxia)
  • Natural-language-to-data interfaces
  • Recommendation systems

Full Stack Development

I build complete products from frontend interfaces to backend APIs, databases, and deployment.

  • Next.js, React, Flutter, and Tailwind CSS
  • TypeScript and JavaScript
  • REST API design and integrations
  • Node.js, Express, and Django
  • Authentication and authorization
  • PostgreSQL, MongoDB, and MySQL
  • Dashboards, data visualization, and deployment

Engineering Leadership & Teaching

I lead teams, mentor engineers, and teach the fundamentals that make great developers.

  • Leading engineering teams of 10+
  • Data Structures & Algorithms teaching
  • Technical mentorship and reviews
  • Architecture and technical decisions
  • Feature planning and debugging
  • Clear technical communication
  • Documentation and onboarding

Expertise

Skills

Technologies and tools I use to build reliable, scalable software.

Languages

  • Python
  • TypeScript
  • JavaScript
  • Java
  • C++
  • SQL

Frontend

  • React
  • Next.js
  • Flutter
  • Tailwind CSS

Backend

  • Node.js
  • Express
  • Django
  • REST APIs
  • API Design

Databases & Cloud

  • PostgreSQL
  • MongoDB
  • MySQL
  • Supabase
  • Firebase
  • Docker
  • GCP
  • AWS

AI & Integrations

  • LangGraph
  • Google Gemini
  • OpenAI API
  • MCP
  • NetSuite
  • Stripe

Tools

  • Git
  • GitHub
  • CI/CD
  • Jira

Leadership & Craft

  • Team leadership
  • Technical mentorship
  • Data Structures & Algorithms
  • 700+ LeetCode problems
  • Agile development
  • Technical writing

Services

How I Can Help

Whether you're starting fresh or improving an existing product, I can help you move forward.

Build an AI Feature

You want to add an AI assistant, semantic search, recommendation engine, or LLM-powered workflow to your product, built for production, not just a demo.

Build a New Product

You have an idea, requirements, or early design, and need someone who can turn it into a working web product end to end.

Develop Full Stack Applications

You need a complete web product — frontend, backend APIs, database design, authentication, and reliable deployment.

Improve an Existing Application

Your application exists but has bugs, performance problems, unclear code, missing features, or an outdated experience.

Create Dashboards & Analytics

You need a financial dashboard, reporting tool, admin panel, or data-heavy internal product for your team.

Support a Startup Team

You need a reliable engineer who can take ownership, lead, communicate clearly, and help move the product forward.

Process

How I Work

I care about clear communication, practical decisions, and shipping useful work.

When I join a project, I start by understanding the product, the users, the existing codebase, and the most important business problem. From there, I break the work into manageable pieces and focus on solutions that are reliable and easy to maintain.

I am comfortable with early-stage startups, established teams, and solo founders who need a technical partner to move faster, and I bring a leadership mindset from years of leading and teaching engineers.

I value

  • Clear requirements
  • Honest communication
  • Clean and maintainable code
  • Fast feedback loops
  • Practical solutions over complexity
  • Products that solve real problems

Ready to build something useful?

Let's talk about your product, your team, and how I can help you ship reliable software.