Hire the Best CI/CD Freelancers
in Poland

CTO and Data/AI Architect with 15+ years building production systems, from early-stage products to Fortune 500 enterprise platforms across the UK, US, and EU. I focus on resilient architecture, clear technical strategy, and AI systems that deliver measurable outcomes in B2B data-rich environments. I've designed and shipped data platforms, agentic RAG systems, multi-agent workflows, AI copilots, and orchestration layers integrating knowledge graphs, semantic layers, and multiple data sources. Domains: SaaS, BI, process intelligence, analytics, fraud detection, supply chain, distributed systems. ① AI & Data RAG end-to-end: chunking, retrieval, reranking, evaluation, monitoring Knowledge graphs: schema design, entity resolution, hybrid KG+RAG retrieval (Neo4j) Multi-agent systems: ReAct, MoE, MoA, hierarchical workflows, tool-using agents Orchestration: MCP, A2A, agent routers, tool registries Observability: latency/cost budgets, guardrails, failure modes, rollout strategy ② Technology Python, SQL, Ruby | Microservices, event-driven, APIs ClickHouse, BigQuery, Redshift, PostgreSQL, Apache Iceberg, Kafka, dbt LangGraph, LangChain, LangSmith, CrewAI, AutoGen, GCP ADK Neo4j, Pinecone, pgvector, Qdrant, FAISS, OpenSearch Docker, Kubernetes, Terraform, Helm, CI/CD Grafana, Prometheus, Looker | AWS, GCP ③ What I Lead CTO-level leadership: strategy, roadmap, delivery governance Data platform architecture: pipelines, modelling, KPIs, governance, cost control AI productisation: prototype to production with evaluation, monitoring, and guardrails Team building: hiring, mentoring, accountability for predictable delivery If you need a CTO-level partner who can architect, build, and lead from strategy to execution, with depth in both AI/Data and engineering reality, I'm the right fit.

DevOps Engineer | Building Secure, Scalable & Cost-Optimized Cloud Foundations I deliver more than just DevOps services - I provide long-term strategic partnerships that transform your cloud infrastructure into a secure, automated, and efficient asset. With 20+ years in IT and 14 years dedicated to DevOps, my team and I have successfully delivered hundreds of projects. We specialize in building robust, future-proof environments using AWS, Azure, GCP, and Kubernetes, fully automated with Terraform, CI/CD pipelines, and Infrastructure as Code. Why clients choose to work with us: ✅ Reduced Risk. ✅ A Team, Not a Freelancer. Projects are backed by a dedicated team, ensuring proactive management, with availability to 24/7 coverage, and deep expertise at every stage. ✅ Focus on Your Business. We handle the complex infrastructure so you can focus on product development and growth. Our solutions prioritize security, cost optimization, and high availability. ✅ Seamless Collaboration. Clear communication and structured project execution are fundamental to our workflow. My core expertise includes: ⭐ Cloud: AWS, Azure, GCP ⭐ Orchestration and Containers: Docker, Kubernetes ⭐ Automation: Terraform, Ansible, Python, Node.js, JavaScript ⭐ CI/CD: Jenkins, GitLab CI, GitHub Actions, Deployment Automation, CI/CD Pipelines ⭐ Monitoring, Security and Scripting: Linux (Ubuntu/CentOS), Bash, Networking Send me a message - let’s build, optimize, and scale your cloud infrastructure 🚀

Hello, entrepreneur 👋 ⭐ Looking for a guy who promises to whip up a full-blown Shopify website in 24 hours at rock-bottom rates? ❌ Sorry, that's not me. ✅ I'm all about offering a fair deal, a realistic timeline, and top-notch quality. You know what's common among those super successful stores that turn visitors into customers? They look flawless. No matter if they have a simple design or are full of shiny animations, they are lightning-fast, easy to navigate, bug-free, and pixel-perfect on every device — that's what responsive design should really mean. I know that you want your store to be that perfect! And I'm here to help you. So here are my superpowers: 👉 Shopify development from scratch with responsive / mobile-first design 👉 Shopify migration (Wordpress, Magento, Prestashop, custom platforms…) 👉Marketplace integration (Amazon, Walmart, Ebay, Etsy...) 👉Figma / Photoshop to Shopify conversion 👉Shopify speed optimization 👉 Integrating Shopify apps (Zapier, Hubspot, shipping, logistic, marketplaces...) 👉 Third-party integrations (Zapier, Make, HubSpot, custom code…) 👉 Heavy integrations (PIM, ERP, OMS…) 👉 Shopify Plus experience - including enterprise-level projects Oh, and here's what working with me means: ✅ A crystal-clear step-by-step game plan ✅ Clean, client-first class structure - which means a non-developer will find no difficulties editing content or scaling the store later ✅ Every build is responsive, SEO-friendly, and speed optimized ✅ Every single project, no matter how small it is, is carefully tested for bugs ✅ You'll receive a 1-month full warranty. If you find any bugs within that month (I strongly believe that you won't), I'll be there to fix them for free. In other words, I'll take care of your store in a way that you'll fall in love with! If you are still thinking, have a look at my portfolio and client feedback. Let my work speak for me! Shall we begin? 🚀

Hello! I’m a DevOps Engineer focused on helping teams build efficient, automated, and reliable cloud environments. My goal is to simplify your infrastructure, speed up deployments, and keep everything running smoothly — so you can focus on building great products. I work with modern DevOps tools and technologies, including AWS, Docker, Kubernetes, Terraform, Jenkins, and scripting in Bash and Python. Here’s how I can help your business: - Build and maintain CI/CD pipelines for faster, safer deployments - Design and optimize cloud infrastructure for scalability and cost-efficiency - Implement monitoring, logging, and security best practices - Automate repetitive tasks to improve developer productivity If you’re looking for someone reliable who can turn complex infrastructure challenges into simple, automated solutions — I’m here to help. Let’s discuss how I can add value to your next project!

System engineer with experience in different areas of IT. Like to solve issues and fixing errors. Worked a lot with onprem solutions, now mostly with cloud (AWS, GCP)

Summary: • Performed functional, regression, integration, smoke, and exploratory testing of a business web platform • Validated frontend and backend functionality, ensuring stability and high product quality across releases • Worked closely with developers, analysts, and product teams to clarify requirements and improve test coverage • Created and maintained test documentation, test cases, and bug reports in Agile environment • Conducted database testing using SQL queries for data validation, troubleshooting, and business logic verification • Tested REST APIs using tools such as Postman and browser developer tools • Participated in release verification and production support activities • Used AI-assisted workflows and Python vibe coding for test data generation, scripting, debugging support and QA process optimization • Applied AI tools to improve efficiency in test analysis, documentation, SQL query preparation and exploratory testing • Performed root cause analysis of defects and collaborated with development teams to ensure timely resolution and prevent regressions • Executed cross-browser and cross-device testing to ensure consistent user experience across different environments • Supported CI/CD processes by validating builds and participating in continuous testing within Agile/Scrum workflows • Analyzed logs and system behavior to identify issues in complex distributed systems and microservice-based architecture • Contributed to improving QA processes by suggesting optimizations in test strategy, coverage and defect lifecycle management Technical skills: • Frontend: HTML, CSS • Programming: Java, SQL • CI/CD: Github, Gitlab, Bitbucket • Networking: TCP/IP, HTTP/HTTPS, LAN/WAN • IDE: IntelliJ IDEA, Visual Studio • Tools: Jira, Asana, TestRails, Github, Gitlab, Bitbucket, Mantis, Bugzilla, Docker, Kafka • Automation: Selenium WebDriver, PyCharm, REST Assured (XML, JSON), Swagger, Postman • Logging: xCode, Android Studio, ADB, Charles proxy • Databases: Athena, Aurora • Remote VPN servers and apps Platforms: Windows 10 Android iOS My devices: iPhone 14 Pro Max on iOS 18.7.2 iPhone X on iOS 16.7.10 iPhone SE on iOS 15.7.5 iPad 7(2019) on iOS 18.4 Samsung Galaxy S21 on Android 14 Google Pixel 2 on Android 10 Google Pixel 9 pro on Android 16 Xiaomi Redmi 15 on Android 15 Huawei P20 on Android 10 Huawei Matepad T10 on Android 10 Samsung Galaxy Tab A7 Lite on Android 13 Android TV