I’m a Back-End & AI developer passionate about building scalable, reliable systems and AI-powered solutions. I help startups and businesses create high-performance backends and microservices that solve real problems.
Tech Expertise
Backend: Node.js, Go (Golang), Python, PHP(Laravel) – building RESTful APIs, microservices, and systems that scale
Databases: PostgreSQL, MySQL, MongoDB, Redis – designing reliable, fast data storage and caching
AI/MLL: AI agents, Lang Chain, RAG (retrieval-augmented generation), custom machine learning pipelines, model deployment and integration
Cloud & DevOps: Docker, Kubernetes, AWS, CI/CD – making sure your apps run smoothly at scale
Redis
Back-End Development
Docker
Golang
TypeScript
Python
Microservice
PostgreSQL
AI Agent Development
LangChain
Apache Kafka
Kubernetes
Node.js
PHP
Laravel
Yohannes B.
Addis Ababa, Ethiopia
$20/hr
4.5
9 jobs
Great products are built on reliable backend systems.
I help startups and businesses design, build, and scale backend applications that are secure, maintainable, and production-ready. Whether it's architecting a new platform from scratch, modernizing an existing system, or building high-performance APIs, I focus on creating software that performs reliably as products grow.
Over the past several years, I've worked on SaaS platforms, AI-powered products, and enterprise applications, designing backend architectures, cloud infrastructure, databases, and distributed systems that support thousands of users and complex business workflows.
Backend Development
Backend engineering is my primary area of expertise.
I build scalable services with a strong emphasis on clean architecture, maintainability, security, and performance.
Technologies
Node.js: NestJS, Express.js, Fastify
Python: FastAPI, Django, Flask
Java: Spring Boot
Rust: Actix Web, Axum
Backend Expertise
REST APIs
GraphQL APIs
Microservices Architecture
Authentication & Authorization (JWT, OAuth, RBAC)
Background Workers & Job Queues
Event-Driven Systems
WebSockets & Real-Time Applications
Payment Gateway Integrations
Third-Party API Integrations
File Processing Pipelines
Email & Notification Systems
High-Performance Backend Services
API Design & Versioning
Caching Strategies
Rate Limiting
Distributed Systems
Databases & Data Engineering
Building scalable applications starts with designing data correctly.
PostgreSQL
MySQL
MariaDB
MongoDB
Redis
Firebase / Firestore
Database Design
Query Optimization
Indexing
Transactions
Database Migration
Data Modeling
Cloud & DevOps
I build systems that are easy to deploy, monitor, and scale.
Cloud Platforms
AWS (EC2, ECS, Lambda, API Gateway, S3, RDS, CloudWatch, IAM)
Google Cloud Platform
Microsoft Azure
DevOps
Docker
Nginx
GitHub Actions
CI/CD Pipelines
Linux Server Administration
Performance Monitoring
Logging & Observability
Environment Management
Production Deployments
Software Engineering Practices
I believe maintainable software is just as important as working software.
Clean Architecture
SOLID Principles
Domain-Driven Design (DDD)
Test-Driven Development (TDD)
Design Patterns
Code Reviews
Performance Optimization
Secure Backend Development
Scalable System Design
AI Engineering
While backend development is my core specialization, I also build AI-powered systems when products require intelligent automation or conversational capabilities.
AI Expertise
AI Agents
Multi-Agent Systems
Retrieval-Augmented Generation (RAG)
LLM Integrations
AI Workflow Automation
AI Chat Applications
Voice AI
AI Technologies
LangChain
LangGraph
LlamaIndex
OpenAI
Claude
Mistral
DeepSeek
Pinecone
ChromaDB
FAISS
Supabase Vector
Whisper
ElevenLabs
LiveKit
Vapi
Frontend
When projects require full-stack ownership, I also build modern web applications using:
React
Next.js
TypeScript
Tailwind CSS
ShadCN UI
Material UI
Redux
Zustand
Programming Languages
TypeScript / JavaScript
Python
Java
Dart
Working knowledge of Rust, Kotlin, Swift, and C.
Why Clients Work With Me
✔ Strong expertise in backend architecture and scalable API development.
✔ Experience building cloud-native applications on AWS, GCP, and Azure.
✔ Focus on clean, maintainable code that supports long-term product growth.
✔ Practical experience integrating AI into production systems without compromising reliability.
✔ Clear communication, strong ownership, and a commitment to delivering production-ready software.
If you're looking for a backend engineer who can design scalable systems, build reliable APIs, optimize cloud infrastructure, and integrate modern AI capabilities when needed, I'd be happy to help.
Python
JavaScript
API Integration
Node.js
Artificial Intelligence
Next.js
React
MongoDB
OpenAI API
Web Development
Django
NestJS
Large Language Model
Generative AI
Docker
LangChain
AI Agent Development
DevOps
Amanuel E.
Addis Ababa, Ethiopia
$10/hr
5.0
12 jobs
"I'm an experienced backend & automation developer who builds fast, scalable, zero-maintenance systems.What I actually build and ship every week: Go (Golang) – high-performance APIs, microservices, CLI tools, concurrent workers
Node.js – Express/Fastify/NestJS, real-time apps, webhooks, serverless functions
Python & Django – full-featured backends, admin panels, REST/GraphQL APIs
Databases – PostgreSQL, MySQL, MongoDB, DynamoDB, Redis
Web scraping & data extraction – Playwright, Puppeteer, Scrapy, Selenium, rotating proxies, anti-bot bypass — clean and reliable
Microservices architecture – Docker, Docker Compose, event-driven, AWS Lambda + API Gateway, Kubernetes-ready
Automation with n8n – self-hosted or cloud, custom nodes, bulletproof workflows between all your apps
Smart bots & agents – GPT-4o, Claude 3.5, Gemini, Grok, Llama 3 via API → chatbots, auto-responders, content generators, decision agents
Infra that never breaks – Linux, Bash, systemd, PM2, Caddy/Nginx, Terraform when needed
Bottom line: I build rock-solid backends and microservices (Go/Node/Django), store data wherever it makes sense (including DynamoDB), scrape anything legally and reliably, automate everything with n8n, and supercharge it all with the best AI APIs.
Node.js
Full-Stack Development
ASP.NET Core
ASP.NET MVC
ASP.NET Web API
MySQL
Microsoft SQL Server
MERN Stack
Python Script
Telegram API
Bot
Unix System Administration
Bash Programming
Selenium
Discord Bot Development
Abenezer A.
Addis Ababa, Ethiopia
$15/hr
5.0
16 jobs
Need a developer who can take a product from design files all the way to a deployed, real-time application — and keep it clean and maintainable long after launch? That's exactly what I do.
I'm a Full-Stack Developer with 5+ years of experience building scalable, production-grade web apps with TypeScript, Angular, React/Next.js, and NestJS/Node.js. I've shipped everything from enterprise systems to real-time multiplayer games and online betting platforms — owning the full stack: frontend architecture, pixel-accurate design-to-code, backend APIs, WebSocket/real-time data, database design, and deployment.
What I can build for you:
Responsive, component-driven frontends in Angular or React/Next.js (TailwindCSS, shadcn/ui, clean reusable UI systems)
Robust backends and REST/WebSocket APIs with NestJS & Node.js
Real-time, data-heavy systems — live market data, multiplayer sync, WebRTC voice (Colyseus, LiveKit)
Complex dashboards, multi-tenant SaaS, and custom theming
Refactoring, performance optimization, and stabilizing existing codebases
Solid data modeling with PostgreSQL, MySQL, Prisma, and Redis
A few results I've delivered:
Cut a company-wide document standardization timeline by 60% (10 months → 4)
Built reusable microservices (auth, file, geo, search) that reduced new project setup time by 40%
Eliminated 100% of auth-related help desk tickets with an LDAP-based SSO system
Led a multi-tenant Telegram SaaS betting bot handling payments and live result updates
Delivered an overtime system for 450+ employees across 6 sites with a 3-level approval flow
I run a structured process — discovery, clear feature breakdown, and consistent communication throughout — and I use modern AI tooling to ship faster while personally owning every architectural and quality decision.
If you want a developer who writes clean, performant code and communicates clearly, send me a message and let's talk about your project.
TypeScript
JavaScript
Angular
NestJS
Node.js
HTML
CSS
Tailwind CSS
Front-End Development
Back-End Development
Full-Stack Development
Ecommerce Website Development
CMS Development
Web Application
Web Development
React
Samuel N.
Addis Ababa, Ethiopia
$25/hr
5.0
14 jobs
🚀 Let's Build Your Dream Product
I am a 🌐 web-app designer and developer with over 5+ years of real-world, problem-solving experience!
🚀 Passionate about developing innovative solutions that tackle real-world challenges, I specialize in frontend web development, breathing life into cutting-edge ideas using React, Next.js, Vue.js, and Tailwind CSS. My commitment is to deliver robust solutions that resonate with users.
💻 In the frontend realm, I wield the power of React, Next.js, Vue.js, Tailwind CSS to craft seamless user experiences that captivate and inspire.
🌐 In backend development, I thrive in both backend and frontend domains 🌐. Leveraging Golang/Gin, Hasura GraphQL, and PHP, I build powerful and scalable backend solutions 🛠️. With expertise in Node.js and MongoDB, I architect holistic solutions that seamlessly integrate from UI to database.
----------- Tech Stack -----------
✅Frontend:
Vue, React, Next.js, HTML, CSS, SASS, Tailwind, TypeScript, JavaScript, GraphQL, Apollo Client, Redux, Redux Toolkit, Zustand, React Flow & Unit testing libs. [Jest & Cypress]
✅ Backend:
Node.js, Express, Mongoose, TypeScript, JavaScript, GraphQL, Apollo Server, RESTful APIs, Golang | gin-gonic, GORM
✅ Database:
Postgres, MongoDB, MySQL, Redis
✅ UI/UX:
- Figma
✅ TOOLS: VSCode, GitHub, Jira, Trello, Microsoft To-Do, Meet, Zoom
Vue.js
Next.js
React
Nuxt.js
Golang
Node.js
Django
ExpressJS
Docker
Web Development
FastAPI
Tailwind UI
GraphQL
LangChain
AI Agent Development
Bereket Z.
Addis Ababa, Ethiopia
$20/hr
5.0
14 jobs
🚀 𝗧𝗼𝗽 𝟯% 𝗙𝗿𝗲𝗲𝗹𝗮𝗻𝗰𝗲𝗿 | 𝟭𝟬𝟬% 𝗖𝗹𝗶𝗲𝗻𝘁 𝗦𝗮𝘁𝗶𝘀𝗳𝗮𝗰𝘁𝗶𝗼𝗻 | 𝟰,𝟬𝟬𝟬+ 𝗛𝗼𝘂𝗿𝘀 𝗧𝗿𝗮𝗰𝗸𝗲𝗱
Building a SaaS product, AI application, or platform that needs to scale?
I help startups design and build reliable backend systems that remain secure, maintainable, and scalable as products evolve.
Over the last 5+ years, I've worked on SaaS platforms, AI-powered applications, and distributed systems, helping teams move from idea to production while creating a solid foundation for future growth.
⭐ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲
✅ AI Integration Experience: Built AI-powered features and LLM workflows using OpenAI and Claude APIs
✅ SaaS Specialist: Strong experience building scalable multi-tenant systems with secure RBAC and tenant isolation
✅ Scalable System Design: Experience designing backend architectures that support growth without costly rewrites
✅ Backend Performance Focused: Experience building async processing pipelines and event-driven systems
✅ Reliable Partner: Clear communication, consistent updates, and long-term collaboration
𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
Backend Architecture
• TypeScript, Node.js, NestJS, Express.js
• Multi-tenant SaaS architecture
• Microservices & event-driven systems (Kafka, RabbitMQ)
• REST & GraphQL API design
• Scalable backend systems & async processing
AI & LLM Integration
• OpenAI API / Claude
• AI agents & workflow automation
• LLM integrations for SaaS platforms
• Async AI processing pipelines
• Cost-efficient AI API integration strategies
Security & Data
• JWT, OAuth2, RBAC & tenant-aware authorization
• MongoDB (Mongoose), PostgreSQL, MySQL, TypeORM
• Docker, CI/CD pipelines & performance optimization
𝗪𝗵𝗮𝘁 𝗜 𝗯𝗿𝗶𝗻𝗴 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁
• Clean, scalable, and maintainable backend systems
• Seamless AI integration into SaaS platforms
• Experience refactoring legacy systems for scalability and AI readiness
• A business-focused approach to technical decision-making
𝗖𝗹𝗶𝗲𝗻𝘁 𝗙𝗲𝗲𝗱𝗯𝗮𝗰𝗸
⭐⭐⭐⭐⭐
“Excellent collaboration, diligent and dedicated to the project, worked as efficiently as possible and was available when needed.”
⭐⭐⭐⭐⭐
“Skilled and good collaborator.”
𝗪𝗵𝗲𝘁𝗵𝗲𝗿 𝘆𝗼𝘂'𝗿𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗮 𝗻𝗲𝘄 𝗦𝗮𝗮𝗦 𝗽𝗿𝗼𝗱𝘂𝗰𝘁, 𝗮𝗱𝗱𝗶𝗻𝗴 𝗔𝗜 𝗰𝗮𝗽𝗮𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀, 𝗼𝗿 𝘀𝗰𝗮𝗹𝗶𝗻𝗴 𝗮𝗻 𝗲𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺, 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝗱𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗶𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁 𝗮 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 𝘁𝗵𝗮𝘁'𝘀 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲, 𝗺𝗮𝗶𝗻𝘁𝗮𝗶𝗻𝗮𝗯𝗹𝗲, 𝗮𝗻𝗱 𝗿𝗲𝗮𝗱𝘆 𝗳𝗼𝗿 𝗴𝗿𝗼𝘄𝘁𝗵.
𝗦𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗮𝗻𝗱 𝗹𝗲𝘁'𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁.
Redis
Back-End Development
Software Architecture
SaaS Development
AI Development
API Integration
Microservice
Event-Driven Programming
Test-Driven Development
Database Design
TypeScript
NestJS
Node.js
GraphQL
RESTful API
MongoDB
PostgreSQL
Apache Kafka
Docker
OpenAPI
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