I build software the whole way — architecture, code, and the Linux infrastructure it runs on — and I take it all the way to production.
A few things I've built:
- Ported a legacy C++ real-time video system to modern Go and Pion WebRTC for an established video-chat platform — hard, low-level real-time work.
- Built the SDK and the Terraform provider for a CDN company that's been in business 20+ years. Infrastructure-as-code I didn't just use, but built.
- Designed a production-grade indexing pipeline for large-scale chat data, feeding an Elasticsearch cluster built to handle real volume.
I use AI tools heavily to move fast — but the architecture and the judgment behind it are mine, So if you built something quickly with AI and it works, but you're not sure it'll hold up, I can audit it, close the gaps, and get it to true production grade.
I'm a Certified Kubernetes Administrator (CKA). I'll start you in Docker containers and move you to a scalable Kubernetes cluster as you grow — with proper deployment and monitoring in place from the start.
Backend: Go, PostgreSQL, NATS, microservices, distributed systems
Infrastructure & DevOps: Kubernetes, Docker, Helm, Terraform, CI/CD, Linux (Ubuntu)
Frontend: SvelteKit, React / React Native
— Awet
golang, senior software engineer, software architect, kubernetes, CKA, microservices architecture, distributed systems, NATS, PostgreSQL, elasticsearch, webrtc developer, pion, terraform, devops kubernetes, docker, helm, argocd, sveltekit, svelte, react, react native, linux administrator, ubuntu server, platform engineering, CI/CD
Other:
Looking back I see that I have tested the love of God abundantly in my life ! 🤩
RabbitMQ
Golang
Linux
Kubernetes
PostgreSQL
MongoDB
WebRTC
Node.js
Git
RESTful Architecture
Svelte
Software Architecture
CI/CD
AI Bot
Elasticsearch
Oleg M.
Kyiv, Ukraine
$50/hr
5.0
163 jobs
I build production-grade Python-based data extraction and Web Scraping systems that survive where others fail.
Projects range from focused data extraction tasks to large-scale Anti-Bot resilient infrastructures — each engineered for stability, performance, and long-term reliability.
Over 12+ years, I’ve designed extraction systems processing 1B+ structured records across marketplaces, aggregators, AI/ML platforms, competitive intelligence systems, and enterprise catalogs. My systems are built using Python, Scrapy, Playwright, and Selenium — combining Web Scraper development, Data Mining, API Integration, and ETL pipeline design into stable, production-grade architectures.
Whether you need a targeted scraping solution or a high-volume distributed pipeline, I architect the right system.
When data becomes mission-critical — reliability matters more than code.
──────────────
What I Build
──────────────
• Custom Python Web Scraper and Data Extraction systems aligned with business logic
• Scalable web crawlers handling anything from selective datasets to millions of pages
• Continuous update pipelines (batch & incremental ETL workflows)
• Queue-based distributed processing
• High-concurrency execution models
• API-based data extraction and system integrations
• Clean ingestion into PostgreSQL / MySQL / APIs / cloud storage
• Automated validation, deduplication & anomaly detection
• Structured Data Mining pipelines for growing datasets
You receive structured, business-ready datasets — not scripts to babysit.
──────────────
Anti-Bot & Protection Layers
──────────────
Modern platforms are protected.I work inside environments guarded by:
- Cloudflare (403 / 429 / Turnstile)
- DataDome behavioral detection
- Akamai Bot Manager
- PerimeterX
- Reverse engineering of detection vectors & TLS/JA3 fingerprint alignment
- Headless & browser fingerprint detection
- hCaptcha / reCAPTCHA v3 Enterprise
- Sustainable session & token lifecycle management
This is not proxy swapping.
This is controlled, sustainable access engineering.
──────────────
Scale & Cost Control
──────────────
As volume increases, scraping typically fails in two ways:
1) Stability collapses
2) Infrastructure & proxy costs explode
I optimize concurrency models, routing logic, batching strategy, request distribution, and traffic patterns to maintain high throughput with controlled infrastructure load.
Where relevant, I reduce proxy and infrastructure costs by up to 30% while preserving system stability.
Result:
High uptime. Predictable performance. Controlled margins.
──────────────
Future-Proofing
──────────────
Websites evolve.
Structures change.
Protection layers update.
I implement structural drift monitoring and heartbeat systems that detect site changes before pipelines fail — shifting from reactive recovery to proactive control.
Most developers fix scraping after it breaks.
I design systems that minimize breakage from the start.
──────────────
Who This Is For
──────────────
• Founders building data-driven products
• AI/ML teams requiring proprietary datasets
• Businesses automating competitive intelligence or market tracking
• Companies where reliable data access supports growth
──────────────
Confidence Check
──────────────
If needed, I can provide a working sample before full engagement to demonstrate data quality and bypass stability.
To get started, send:
- Target website(s)
- Required data fields
- Expected volume
- Update frequency
- Preferred output format
Whether you're starting with a focused scraping task or building a large-scale data infrastructure — let’s build it properly.
Web Scraping
Data Extraction
Python
REST API
Automation
Selenium
Web Crawler
Web Crawling
Web Scraping Framework
API Integration
Scrapy
Data Processing
Python-Requests
Beautiful Soup
Data Collection
Binh N.
Ho Chi Minh City, Vietnam
$8/hr
5.0
2 jobs
🌟🏆SUMMARY 🏆🌟
✅ 10 Years Of Experience
✅ High-Quality Work
✅ Cost-Efficient Services
✅ Fluent English
✅ Long term working relationship
I am a senior full-stack web developer with a track record of delivering large-scale high-performance products and have professional experience in various technologies of frontend and backend development.
Listed below are my experience and skills:
==========
✅ Front-end: React, Next.js, HTML5, CSS3, JavaScript, TypeScript, Remix, Tailwind CSS.
✅ Back-end: Python, Django, Node.js, Nest.js, Express.js, RESTful APIs, GraphQL, tRPC.
✅ Mobile App: React Native IOS.
✅ Databases: MySQL, PostgreSQL, MongoDB, Supabase.
✅ Cloud & Hosting: AWS (EC2, S3, SES), Firebase.
✅ SEO: Best practices, Performance, Accessibility.
✅ Other Skills: PWA development, responsive UI/UX, web3.js.
🤝 Let's collaborate!
Contact me for a project audit, technical consultation, or to develop a roadmap for your project — whether you need a custom platform, sophisticated enterprise application, or a well-designed website.
Looking forward to a long-term, win-win partnership.
Best Regards
Steve
RabbitMQ
JavaScript
TypeScript
Vue.js
React
Django
NestJS
web3.js
Node.js
Next.js
MySQL
PostgreSQL
Docker
Redis
Celery
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
Anthony B.
Millcreek, Utah
$70/hr
5.0
2 jobs
I build production-grade systems that handle real-world complexity - not prototypes that break under actual usage.
I didn't start as a developer. I came up through IT operations at a healthcare organization, dealing with broken EHR integrations, sync failures, and workflows that crashed when clinicians needed them most.
For several years, I was the person called when systems went down. That's when I started writing code - starting with scripts to automate my own troubleshooting, then building tools to fix recurring problems. Scripts became utilities. Utilities became systems. Eventually, I wasn't just keeping software running - I was building it.
Over the last 10 years, I've worked on SaaS platforms, healthcare applications, e-commerce systems, and AI-powered automation. I've designed multi-tenant architectures serving thousands of users, built APIs processing millions of requests, and integrated AI into workflows that reduced manual operations by 70%+.
My operations background gave me something most developers lack: understanding how business logic actually functions in production. I don't just ship features - I understand the workflows they enable, the edge cases that break them, and the business rules that define them.
I focus on outcomes, not just technical implementation.
What I Do
- SaaS platforms: Multi-tenant architecture, subscription billing, role-based permissions, complex business rules, real-time sync, API integrations.
- AI & automation: LLM integrations (GPT, Claude), RAG pipelines, document processing, workflow automation, AI agents handling real business logic.
- Healthcare systems: EHR integrations (HL7, FHIR), HIPAA-compliant architecture, clinical workflows, patient data sync, billing logic, audit logging.
- Business logic: Complex validation rules, multi-step workflows, conditional processing, data transformation pipelines, integration orchestration.
I've built systems handling 10k+ documents monthly, processing thousands of daily transactions, and syncing data across dozens of third-party platforms without failure.
Tech Stack
- Backend: Node.js, Python, TypeScript, Express, NestJS, FastAPI, Django
- Frontend: React, Next.js, Vue.js, TypeScript, Tailwind CSS
- Database: PostgreSQL, MongoDB, Redis
- Cloud: AWS (EC2, ECS, S3, Lambda, RDS), Azure, Docker
- AI: OpenAI API, Claude API, LangChain, RAG
- Healthcare: HL7 v2, FHIR R4, HIPAA compliance
- APIs & Integration: REST, GraphQL, WebSockets, OAuth 2.0, Stripe
- Infrastructure: CI/CD, RabbitMQ
How I Work
I communicate clearly and directly. I ask the right questions upfront to understand business logic and constraints. I document what I build. I test comprehensively before deployment. I think about failure scenarios and real-world usage - not just ideal conditions.
I work remotely, manage my own timelines, and operate independently.
I'm not the cheapest option. But I deliver clean, scalable systems that work in production, handle complex business logic correctly, and remain stable long-term.
AI Agent Development
Node.js
Python
React
Next.js
TypeScript
PostgreSQL
AI App Development
OpenAI API
SaaS Development
API Development
REST API
FHIR
Amazon Web Services
Claude
LLM Prompt Engineering
Generative AI
Jitendra S.
Ahmedabad, India
$50/hr
4.8
165 jobs
Experienced Solution Architect with Expertise in AWS, Django, Flask, ReactJS, and Complex App Development
𝐊𝐞𝐲 𝐒𝐭𝐫𝐞𝐧𝐠𝐭𝐡: Building Long-term Partnerships & Delivering High-impact Solutions
𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐭𝐲: Complex App Development, API Integration & Cloud Architecture
With over 𝟐𝟎+ 𝐲𝐞𝐚𝐫𝐬 of experience as a seasoned IT professional and entrepreneur, I specialize in providing cutting-edge web development and cloud-based solutions. I have held roles ranging from application programmer and automation engineer to Scrum Master, technical mentor, and subject matter expert.
I bring a wealth of expertise in various domains, including 𝗟𝗼𝗴 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁, 𝗩𝘂𝗹𝗻𝗲𝗿𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁, 𝗲𝗖𝗼𝗺𝗺𝗲𝗿𝗰𝗲, 𝗮𝗻𝗱 𝗪𝗲𝗯 𝗦𝗲𝗿𝘃𝗲𝗿 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻. I have partnered with startups and established enterprises like Loggly, Alert Logic, McAfee, BlackStratus, and Hoffman Patent Firm, among others.
In my current role, I focus on creating strategic outsourcing partnerships that help clients accelerate time to market, cut operational costs, and concentrate on their core competencies.
𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲:
▄ 𝗦𝘆𝘀𝘁𝗲𝗺 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲: 20+ years of hands-on experience leading complex software development projects.
▄ 𝗖𝗹𝗼𝘂𝗱 𝗖𝗼𝗺𝗽𝘂𝘁𝗶𝗻𝗴 (𝗔𝗪𝗦): Proficient in EC2, SQS, DynamoDB, SNS, RDS, CloudTrail, SES, EBS, Load Balancers, and CI/CD deployment pipelines using Docker, Jenkins, and GitLab.
▄ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Expertise in Django, Flask, and Node.js, including the Django Rest Framework.
▄ 𝗦𝗲𝗿𝘃𝗲𝗿𝗹𝗲𝘀𝘀 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲𝘀: Experience with AWS Lambda, API Gateway, and Node.js.
▄ 𝗗𝗲𝘃𝗢𝗽𝘀 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Skilled in GCP, Kubernetes, Docker Compose, production deployment, and Python/Perl-based automation.
▄ 𝗦𝗜𝗘𝗠 & 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆: Specialized in developing and integrating SIEM products and vulnerability scanners.
𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝗸𝗶𝗹𝗹𝘀:
► 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: Python, C++, C#, Java, Perl
► 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Django, Flask, Django REST, Magento, ReactJS, VueJS, Zend
► 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MS SQL, MySQL, PostgreSQL, MongoDB, Oracle
► 𝐂𝐈/𝐂𝐃 𝐓𝐨𝐨𝐥𝐬: Docker, Jenkins, GitLab CI, Github Actions, AWS Code Pipeline
► 𝐂𝐥𝐨𝐮𝐝 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬: AWS (EC2, S3, RDS, CloudFront, CloudTrail), GCP
► 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 & 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Git, Jira, Confluence, VersionOne, MS Project, XMind
► 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: NUnit, Selenium, Cypress
RabbitMQ
Python
MongoDB
Django
Flask
AWS Lambda
Business with 1-9 Employees
Agile Software Development
Websockets
D3.js
PostgreSQL Programming
React
Web Application
AWS Application
Web Development
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