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I help startups, SaaS companies, and established teams build reliable software that is secure, scalable, and ready for real users. I am a Senior Software Architect and full-stack freelancer with 6+ years of experience delivering API-first platforms, cloud-native applications, AI-enabled products, e-commerce experiences, and high-volume financial systems. My core strength is turning complex requirements into practical architecture and clean, maintainable software—without losing sight of performance, security, delivery speed, or business outcomes. I work across the full product lifecycle: technical discovery, solution architecture, backend and frontend development, database design, AI integration, cloud deployment, testing, optimization, and post-launch support. What I can help you build or improve: • High-performance C# / .NET and ASP.NET Core APIs • SaaS platforms, internal tools, customer portals, and secure dashboards • Microservices, event-driven workflows, REST APIs, GraphQL, and gRPC • AI-powered workflows using Python, LLMs, AI agents, RAG, vector search, and document automation • Cloud infrastructure and delivery pipelines on AWS and Azure • React, Next.js, TypeScript, Vue.js, and modern responsive web applications • PostgreSQL, SQL Server, MySQL, Redis, RabbitMQ, caching, indexing, and query optimization • Authentication and authorization with OAuth2, JWT, RBAC, Auth0, and secure API design • Shopify / headless commerce, Stripe integrations, and third-party API integrations • Docker, Kubernetes, Terraform, GitHub Actions, CI/CD, observability, testing, and release automation I have worked on systems spanning fintech, real estate, enterprise SaaS, Web3, e-commerce, and AI automation. My background includes improving critical API response times by 40%, reducing long-running report execution from 4.2 seconds to 350 ms, modernizing legacy checkout workflows into .NET services that lowered hosting costs by 28%, and launching 20+ custom business and e-commerce websites. My approach is straightforward: 1. Understand the business problem, users, constraints, and success criteria. 2. Recommend a solution that is proportionate to the product stage and budget. 3. Build in clear milestones, with frequent communication and production-quality code. 4. Deliver documentation, clean handoff materials, and a system that your team can maintain. Whether you need a technical partner to architect a new product, an experienced .NET engineer to stabilize or scale an existing platform, or an AI integration specialist to bring practical automation into your workflow, I focus on delivering measurable, dependable results. Primary stack: C#, .NET 8/9, ASP.NET Core, Python, React, Next.js, TypeScript, AWS, Azure, PostgreSQL, SQL Server, Redis, Docker, Kubernetes, Terraform, LangChain, Semantic Kernel, OpenAI-compatible LLM workflows, RAG, Auth0, Stripe, and GitHub Actions. Available for fixed-price projects, long-term development engagements, architecture consultations, performance optimization, and ongoing technical ownership.

FREE technical consultation (details below) 🐻 Proud Comsats graduate (Software Enginnering) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). I help entrepreneurs, startups, and businesses turn ideas into fully launched products. Whether you need a mobile app on iOS and Android, a scalable web application, or both, I handle everything from initial design to App Store and Play Store deployment. With 7+ years of experience in Full Stack JavaScript/TypeScript and React Native development, I build production ready applications that scale, perform seamlessly, and deliver exceptional user experiences. What I Build ? Mobile Apps: Cross platform iOS and Android apps with React Native, Expo, push notifications, offline sync, in app purchases, real time features, payment integrations, and complete App Store and Play Store publishing. Web Applications: High performance web apps with React, Next.js, Node.js, server side rendering (SSR), static site generation (SSG), responsive design, SEO optimization, and Progressive Web Apps (PWA). AI Powered Solutions: Integration of OpenAI, Claude, Gemini APIs for chatbots, content generation, image creation, speech recognition, natural language processing, and intelligent automation. Tech Stack: Frontend: React, Next.js, React Native, TypeScript, TailwindCSS, Material UI, Shadcn UI, Redux, Zustand, React Query Backend: Node.js, Express, NestJS, Fastify, GraphQL, Socket io, JWT authentication Mobile: Expo, React Navigation, push notifications, biometric auth, deep linking, native modules AI Integration: OpenAI GPT 4, Claude API, Gemini, LangChain, vector databases, RAG systems Databases: PostgreSQL, MongoDB, MySQL, Firebase, Supabase, Redis, Prisma, TypeORM I deliver end to end solutions from wireframes to deployment, ensuring your product is scalable, secure, and ready for users. Let me help you build and launch your next successful product. 𝗦𝗲𝗮𝗿𝗰𝗵 𝗺𝗲 𝘂𝘀𝗶𝗻𝗴 𝗸𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Mobile App Developer, React Native, Swift, Android Development, IOS App development, SaaS Developer, Full Stack SaaS Developer, SaaS Application Developer, SAAS Only, SAAS Development, React Developer, Next.js Developer, JavaScript Developer, TypeScript Developer, Node.js Developer, SaaS Architect, Startup MVP Developer, Software Engineer, Web Application Developer, Product Developer, CRM Developer, ERP Developer, Dashboard Developer, Multi-Tenant SaaS Developer, Subscription Platform Developer, Stripe Integration Expert, API Integration Developer, AI SaaS Developer, Cloud Application Developer, B2B SaaS Developer, SaaS Product Engineer, Full Stack Engineer.

I build secure, automated, and cost-efficient DevOps systems, from plan to production, treating your goals like my own. You’ll get a clear roadmap, meeting notes, and steady progress updates. My rule is simple: no delays, no surprises. I stay in touch throughout the process , you can reach me anytime for updates or quick fixes. After delivery, I support free for small adjustments to ensure everything runs as planned. Technical Expertise Cloud Platforms: AWS | Google Cloud | Azure | Cloudflare | DigitalOcean Infrastructure as Code & Automation:Terraform | Ansible | CloudFormation | CI/CD (GitHub Actions, GitLab CI, Jenkins) Containerization & Systems:Docker | Kubernetes | EKS | Linux Server Management | Security Hardening | Performance Optimization Automation & Integration:n8n | MCP Server | Workflow Automation | AI Integrations | Monitoring (CloudWatch, Prometheus, Grafana) Project Highlights Delivered multiple DevOps and automation projects like: • AWS infrastructure setup, monitoring, and cost optimization • Cloud migrations with zero downtime • n8n & MCP automation setups with SSL • FileMaker and WordPress deployments with performance tuning Clients appreciate my structured approach, clear communication, and reliable delivery of production-ready systems. Certifications • AWS Certified Solutions Architect • HashiCorp Certified: Terraform Associate • ...and more Let’s connect to plan your next DevOps step , I respond quickly. More Technical Expertise : Experienced DevOps Engineer with a strong background in designing, automating, and managing secure, scalable, and cost-optimized infrastructures across AWS, Google Cloud, Azure, Cloudflare, and DigitalOcean. Proficient in building Infrastructure as Code environments, automating deployments, and ensuring high availability through continuous delivery pipelines and robust monitoring systems. Cloud Platforms: AWS (EC2, S3, RDS, EKS, Route53, CloudFront, CloudFormation, CloudWatch, Auto Scaling, IAM, VPC, Lambda, NAT Gateway, VPN) | Google Cloud (GKE, Compute Engine, Cloud SQL, Cloud Run) | Azure (VMs, AKS, Blob Storage) | Cloudflare (CDN, DNS, WAF, SSL, Zero Trust) | DigitalOcean (Droplets, Spaces, Load Balancers). Skilled in multi-cloud strategy, cost governance, private networking, and hybrid cloud integration. Infrastructure as Code & Automation: Terraform (modular IaC, reusable modules, workspaces) | Ansible (configuration management, provisioning, patch automation) | AWS CloudFormation | Pulumi | CI/CD using GitHub Actions, GitLab CI, Jenkins, CircleCI | Python & Bash scripting | YAML automation. Expert in zero-downtime deployments, blue-green and canary strategies, and multi-environment delivery automation. Containerization & Systems: Docker (multi-stage builds, custom images) | Kubernetes (EKS, Helm, Ingress, RBAC, HPA, ConfigMaps, Network Policies) | Linux Administration (Ubuntu, RHEL, CentOS) | Nginx | Apache | Load Balancing | Reverse Proxy | System Hardening | Performance Tuning. Building and maintaining production-grade containerized microservices with security, scalability, and resource efficiency. Security & Compliance: IAM | AWS WAF | AWS Inspector | CloudTrail | Trusted Advisor | CIS Benchmarking | Fail2Ban | iptables | SSL/TLS | Security Groups | Secrets Management (AWS Secrets Manager, Vault) | Encryption | Logging Compliance (GDPR, SOC2). Implementing DevSecOps best practices including access control, audit logging, vulnerability scanning, and cost monitoring. Monitoring & Observability: CloudWatch | Prometheus | Grafana | Loki | ELK Stack (Elasticsearch, Logstash, Kibana) | Alertmanager | FluentD | Kinesis Firehose | Datadog | Zabbix. Setting up proactive monitoring, centralized logging, and alerting systems for real-time visibility and incident response. Automation & Integrations: n8n | MCP Server | Airflow | API Integration | Webhooks | Workflow Automation | Slack, Discord, Telegram bots | AI-assisted automation | Event-driven pipelines. Developing efficient automation workflows that connect DevOps, cloud, and business tools to reduce manual effort and increase reliability. Additional Skills: Git | GitHub | GitLab | Bitbucket | Jenkins Pipelines | Terraform Cloud | AWS CDK | Docker Compose | PostgreSQL | MySQL | MongoDB | Redis | HAProxy | AWS SES | S3 Lifecycle | Route Tables | Bastion Hosts | Backup & Recovery | VPN | DNS Routing | Cost Optimization | Serverless Framework | Cloud Migration | Domain & SSL Management. Proven track record in delivering production-ready DevOps solutions: scalable AWS infrastructures, automated CI/CD pipelines, Kubernetes clusters, serverless backends, and secure, monitored, and optimized cloud environments.

🚀 DevOps Engineer | Cloud & Automation Specialist Hi there! I’m Murat, a DevOps Engineer specialized in AWS & Azure with expertise in CI/CD, Infrastructure as Code (IaC), containerization, and deployment automation. ✅ 🔍🛠️💡Troubleshooting & Problem-Solving – Quickly identifying and resolving issues. ✅ CI/CD Pipelines – I build efficient and reliable deployment pipelines using GitHub Actions & Jenkins. ✅ Infrastructure as Code (IaC) – I design scalable, automated infrastructure with Terraform & Ansible. ✅ Cloud Platforms – I develop secure and cost-effective solutions on AWS and Azure. ✅ Containerization & Orchestration – I optimize modern applications with Docker & Kubernetes. ✅ Monitoring & Optimization – I use Prometheus & Grafana to ensure system reliability. I help clients reduce costs, improve system scalability, and automate infrastructure to boost productivity. Let’s connect and discuss how I can contribute to your projects! 🚀 Skills Cloud Platforms: AWS, Azure CI/CD & Automation: GitHub Actions, Jenkins Infrastructure as Code (IaC): Terraform, Ansible Containers & Orchestration: Docker, Kubernetes, Helm Programming Languages: Python, Bash, PowerShell, C# Monitoring & Logging: Prometheus, Grafana, Kibana Employment History DevOps Engineer | NTT DATA Business Solutions | January 2024 – February 2025 Automated CI/CD pipelines, reducing deployment times by 30%. Implemented AWS & Azure solutions, cutting costs by 25%. Freelance DevOps Engineer | 2023 – Present Built CI/CD pipelines using GitHub Actions & Jenkins. Developed containerized solutions with Docker & Kubernetes. Optimized infrastructure using Terraform & Ansible. Software Development Specialist | Alpar Automotive | 2015 – 2019 Increased operational efficiency by 40% through custom software solutions. Developed a unified communication platform for improved collaboration. Certifications AZ-400: Microsoft Certified: DevOps Engineer Expert (Target: Q1 2025) AZ-900: Microsoft Azure Fundamentals (2024) AWS DevOps Training – Udemy (2023)

Top 3% Freelancer who built enterprise multi-tenant RAG systems with custom LLM deployments, reduced LLM workflow costs by 70%, and delivered a 2M product data quality pipeline for a Fortune 500 biotech company, reducing manual efforts by 85%. Architected and deployed production systems across finance, biotech, energy, telecommunications, and healthcare. 5+ years taking end-to-end ownership on all projects, from greenfield architecture to secure & scalable production deployment, leading engineers and maintaining systems long-term. I specialize in production-ready AI solutions with measurable ROI. From 90% accuracy voice classification to billion-scale data engineering. Core Expertise: • AI Agents / Agentic Workflows (LangGraph, Tool Calling, Function Calling, Agent Memory Patterns, Agent Patterns, Multi-Agent Orchestration, Building MCP, Plugins, Skills, Hooks, Deterministic Enforcement, ReAct Pattern, AI Assistants, Research, Planning, Writing) • LLM Systems (Claude API, OpenAI API Integration, vLLM, LoRA/QLoRA Fine-Tuning, PEFT, RLHF, DPO, LLaMA, Mistral, Prompt Engineering, Deterministic Workflows, LLM Evaluation, Cost Optimization, Deploying Chatbots, Deploying LLMs, Claude Code, Codex) • RAG (Hybrid Retrieval, Vector Databases, Evaluation Harness, Tiered Access, Custom Document Parsing, PDF/Clinical Data Extraction, Ragas, Multi-Tenancy) • NLP (Transformers, spaCy, Named Entity Recognition, Text Classification, Taxonomy Design, Rule-Based Extraction, Sentiment Analysis, Topic Modeling, Summarization, Information Extraction) • Generative AI (Structured Outputs, Pydantic Validation, Guardrails, Hallucination Prevention, AI Chatbot Development, AI Integration) • ETL & ML Pipelines • Time Series Applications at scale. - I personally prefer native APIs for building Agentic / LLM workflows. Domain Expertise: • Energy & Utilities (demand forecasting, carbon emissions, time series, pricing optimization) • Financial Services (compliance-ready RAG, churn prediction) • Life Sciences (biotech product classification, scientific NER, clinical data extraction, safety) • Telecommunications (voice classification, Whisper, ASR, diarization) Projects - Open source contributor (Langchain vLLM integration fix) - Enterprise RAG Engine with multi-tenancy, project-level isolation, custom vLLM deployments, agent live on the WhatsApp channel - customer support. - Finance-Specific RAG System with compliance features and RAG benchmarking - Enterprise Knowledge Base Chatbots Integrating (RAG daily sync on Notion, Slack, Website, Documents, evals, Live on Zendesk Customer Support Agent, Internal AI Agents on Slack(Deep Research, Q-A, Reporting), Blogpost creation with tone and fact checks.) - Production agentic workflows with state management, semantic processing, and monorepo CI/CD - SEO keyword clustering system processing 10k+ keywords under 10s using OpenAI embeddings + HDBSCAN - Enterprise Misspelling Detection Pipeline for 2M biotech products using FAISS similarity matching and 740k scientific corpus validation (Thermo Fisher) - Real-time Voice Classification System (90% accuracy, active learning pipeline) - Call Recommendation System with statistical engine for optimal calling times - Energy Market Forecast System for Budapest electricity prices - 500+ Class Text Classification with Fine-Tuned BERT - Extending a Lexicon using GloVe Word Embeddings - Databricks PySpark Data Pipeline for Aggregating Billion Scale Data - Time Series Analysis and Models on Energy Consumption Data from different locations in Belgium and Germany - API Integrations & Calculations on Electricity Business Objectives - Imbalanced Binary Classification on Anonymized Data (Oversampling + CatBoost & hGBM) - Data Processing Pipeline for 70m of Electricity Sensor Data for a Research Project Tech Stack: • Programming Languages: Python, SQL • Machine Learning & Deep Learning: TensorFlow, Keras, PyTorch, Scikit-Learn • NLP: LangChain, NLTK, Gensim, FAISS, Pinecone, pgvector • Time-Series: Prophet, TSMixer, ARIMA, SARIMAX, LSTM • MLOps & Data Engineering: Terraform, Linux, Apache Spark, Airflow, Docker, Flask, Streamlit, Gradio, MLflow, W&B, Optuna, CI/CD Pipelines, n8n workflows, Ragas • Cloud: Google (BigQuery, Cloud Functions, Cloud Run, Dataflow, Vertex AI, Firestore, Cloud Storage, Composer) • AWS (Lambda, SageMaker, S3, EC2, ECR, DynamoDB, Glue, CloudWatch) • Azure (Databricks-PySpark) • Database: PostgreSQL, Pinecone, Chroma • Data Manipulation & Statistics: Pandas, NumPy, OpenCV, Regex, SciPy, Statsmodels • Data Visualization: Matplotlib, Plotly • Web Scraping: BeautifulSoup, Requests • Building Custom NER Models & Linking, Question Answering, Text Similarity & Word Embeddings, Part-of-Speech Tagging & Dependency Parsing, Text Generation, Lexical Semantics & N-grams, Clustering • Logistic Regression, SVM, Decision Trees, Random Forest, Gradient Boosting Machines (XGBoost, LightGBM, hGBM), k-NN, CNN, RNN, K-Means, DBSCAN, HDBSCAN, OPTICS

I'm a Senior Full-Stack Developer based in Istanbul, with over 8 years of experience, including hundreds of successful web projects for more than 40 Upwork clients to date, thousands of hours of work, and a 100% Job Success Score. I specialize in building high-quality, scalable, and production-ready web applications. What I offer: – 100% clean, maintainable, and scalable code – Production-ready full-stack web applications – Well-structured APIs and database design – Fast, reliable delivery with clear communication Expertise in: – Backend: PHP, Node.js, Express.js, NestJS, Next.js, WebSocket – Frontend: TypeScript, React, Next.js, Gatsby, Material UI, Tailwind CSS – Cloud & DevOps: AWS (EC2, Lambda, Amplify, S3), Docker, Nginx, CI/CD (GitHub Actions) – Databases: MongoDB, MySQL, PostgreSQL, Supabase, Redis – CMS: WordPress, WooCommerce, Shopify