Hire the Best Apache Developers
in Estonia

𝗦𝘁𝗿𝘂𝗴𝗴𝗹𝗶𝗻𝗴 𝘁𝗼 𝘁𝘂𝗿𝗻 𝘆𝗼𝘂𝗿 𝗱𝗮𝘁𝗮 𝗽𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀 𝗼𝗿 𝗺𝗮𝗻𝘂𝗮𝗹 𝘄𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀 𝗶𝗻𝘁𝗼 𝗶𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁, 𝗮𝘂𝘁𝗼𝗻𝗼𝗺𝗼𝘂𝘀 𝘀𝘆𝘀𝘁𝗲𝗺𝘀? 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗔𝗜/𝗠𝗟 𝗮𝗻𝗱 𝗮𝗴𝗲𝗻𝘁𝗶𝗰 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. 𝗙𝗿𝗼𝗺 𝗟𝗟𝗠-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝘁𝗼 𝗿𝗲𝗮𝗹 𝘁𝗶𝗺𝗲 𝘀𝗽𝗲𝗲𝗰𝗵-𝘁𝗼-𝘀𝗽𝗲𝗲𝗰𝗵 𝗔𝗜 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗯𝗮𝗰𝗸𝗲𝗱 𝗯𝘆 𝗮 𝘀𝘁𝗿𝗼𝗻𝗴 𝗱𝗮𝘁𝗮 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗳𝗼𝘂𝗻𝗱𝗮𝘁𝗶𝗼𝗻 𝘁𝗵𝗮𝘁 𝗺𝗼𝘀𝘁 𝗔𝗜 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝗹𝗮𝗰𝗸 I help SaaS, AI Fintech and enterprise teams design reliable systems across the full path: data ingestion to warehouse to orchestration to ML-ready datasets to LLM/RAG workflows to automation and decision systems HOW I CAN HELP YOU... - AGENTIC AI & LLM SYSTEMS I build LLM-powered applications and agentic workflows that automate business processes, connect to internal tools and work with real operational data. This includes RAG/GraphRAG systems, embeddings, vector search, prompt workflows, retrieval evaluation, FastAPI-based AI services, and reliable orchestration around LLM pipelines - RAG, GraphRAG & AI KNOWLEDGE SYSTEMS I can help you build retrieval systems that are grounded in your documents, databases and business rules. My data engineering background helps me design better ingestion, chunking, metadata, data quality and retrieval pipelines so the AI layer has clean and trusted information to work with - AI READY DATA ENGINEERING Your AI system is only as good as the data behind it. I design and optimize production pipelines using Python, SQL, Snowflake, dbt, Apache Airflow, BigQuery, AWS, and modern ELT patterns. I focus on reliability, monitoring, data quality, incremental processing, and clean data models that can support analytics, ML, and AI applications - ML PIPELINES & AUTOMATED DECISION SYSTEMS I have experience building analytics and ML-enabled systems such as anomaly detection, behavioral scoring, feature pipelines, fraud/risk insights and operational monitoring. I focus on practical ML and automation that business teams can trust, understand, and use in production - DATA PLATFORM MODERNIZATION If your dashboards are slow, pipelines fail silently, KPIs do not match, or your team spends too much time reconciling data manually, I can help modernize the architecture. I have worked on cloud data platforms, warehouse design, dbt modeling, Airflow orchestration, and KPI frameworks that make reporting and AI use cases more reliable 𝗥𝗘𝗦𝗨𝗟𝗧𝗦 𝗜 𝗛𝗔𝗩𝗘 𝗗𝗘𝗟𝗜𝗩𝗘𝗥𝗘𝗗 - Reduced ETL runtime from 35 minutes to 7 minutes through pipeline and query optimization - Improved reporting latency from 24 hours to under 15 minutes with modern warehouse and ELT design - Improved pipeline reliability to 99.8% with orchestration, monitoring, retries, and validation - Increased BI adoption from 20 to 80+ users by standardizing metrics and improving reporting access - Supported analytics and ML use cases across fintech, SaaS, procurement, media, and enterprise environments - Built data foundations for AI-ready analytics, anomaly detection, and LLM-powered retrieval workflows 𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞 I build proper custom AI and automation systems the same way I build production data platforms: reliable, documented, testable and designed for real users. I care about architecture, maintainability, monitoring, data quality, and business outcomes 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞: - AI/LLM: RAG, GraphRAG, LLM integration, embeddings, vector search, prompt workflows, retrieval evaluation - Backend/API: Python, FastAPI, REST APIs, async workflows, automation services - Data Engineering: Snowflake, dbt, Apache Airflow, BigQuery, SQL, Python, ETL/ELT, data modeling - Cloud/Infra: AWS, Docker, CI/CD, monitoring, production deployment patterns - Analytics/ML: anomaly detection, feature engineering, ML-ready datasets, BI, KPI frameworks If you need someone who understands both the data layer and the intelligent AI layer on top of it, I would be happy to discuss your workflow and recommend the most practical production-ready approach

I'm an experienced 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 and 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 specialist with a background in 𝐃𝐚𝐭𝐚 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 with extensive experience in designing and implementing end-to-end AI and ML solutions. My expertise spans various industries, and I've worked with multi-national teams to deliver innovative solutions. 🌎🏆 Are you looking to optimize your data engineering pipelines or leverage advanced machine learning for real-world impact? Need assistance in designing and deploying robust AI and ML solutions in your business environment? Let's connect and transform your ideas into actionable outcomes. 🔧💻✨ ✔️Core Services ✅ Generative AI and Large Language Models (LLMs)🤖 • Proficient in AutoGen and GPT-3.5-turbo for a range of generative AI applications, from code generation to task automation. • Experienced in creating multi-agent frameworks, conducting reinforcement learning with human feedback (RLHF), and integrating document processing and analysis with tools like ChatGPT and Langchain. • Skilled in designing complex workflows, implementing custom prompts, and exploring parameter-efficient fine-tuning techniques to optimize LLM performance. ✅ Machine Learning and Predictive Analytics📊 • Built ML models for sales forecasting, financial analysis, and other predictive tasks. • Strong background in PySpark and ML algorithms like Prophet and SARIMAX. • Used Google BigQuery, Google Dataproc, and Apache Airflow for orchestration in various projects. ✅ Data Engineering and ETL Pipelines 🔄 • Specialize in designing, optimizing, and migrating ETL pipelines using Azure Data Factory, Databricks, Google Cloud Platform (GCP), and more. • Extensive experience in large-scale data transformation and efficient data flow. ✅ Chatbot Development💬 • Design and deploy intelligent chatbots integrated with various data sources or APIs to enhance customer engagement and streamline business processes. ✅ Custom Python Scripting and APIs 🐍 •Develop custom Python scripts and APIs to interact with databases, AI models, and other software systems, enabling seamless automation and integration with existing workflows. 𝐔𝐧𝐢𝐪𝐮𝐞 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬: 𝐏𝐚𝐫𝐚𝐦𝐞𝐭𝐞𝐫-𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐅𝐢𝐧𝐞-𝐓𝐮𝐧𝐢𝐧𝐠 (𝐏𝐄𝐅𝐓) ⚙: I have expertise in advanced LLM techniques, including fine-tuning, chain-of-thought prompting, and reinforcement learning with human feedback (RLHF). 𝐀𝐈-𝐁𝐚𝐬𝐞𝐝 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ⚡: I can help you automate business processes and boost efficiency using AI and ML techniques. 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡, 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 🔬: I offer expert guidance and hands-on development in AI and ML, focusing on delivering practical solutions to real-world challenges. 𝐋𝐞𝐭'𝐬 𝐂𝐨𝐧𝐧𝐞𝐜𝐭: 💡 If you're interested in exploring the potential of AI, data engineering, or machine learning for your business, I'd love to hear from you. Let's discuss your requirements and create tailored solutions to meet your unique needs. Together, we can drive innovation and transform your vision into reality. #MachineLearningEngineer #GenerativeAI #LLMDeveloper #ChatGPTExpert #AutoGen #Langchain #AIConsultant #OpenAI #NLPDeveloper #RLHF #FineTuningLLMs #FreelanceAI #RemoteMLJobs #HireMachineLearningEngineer #AIExpertForHire #FreelanceDataEngineer #RemoteAIProjects #HireLLMExpert #AvailableForFreelance #AIAutomation #AIForBusiness #FintechAI #AIInHealthcare #PredictiveAnalytics #RealEstateAI #SalesForecastingAI #CustomAIDevelopment #AIChatbots #AIInnovation #TechFreelancer #AIProject #PythonDeveloper #FreelancerLife #DataScience #ArtificialIntelligence #TechConsultant #NextGenAI #BuildWithAI

I'm a senior Aussie developer living in Europe. - 9000+ hours on upwork - 100% success rating top rated plus My skill set is as follows. 💎 Backend skills: ✔✔✔ PHP 7.x ✔✔✔NodeJS ✔✔✔Laravel Framework (5.x) ✔✔✔ NestJS ✔✔✔ Prisma ORM ✔✔✔ Graphql subscription, graphql-codegen, type-graphql ✔✔ CQRS ✔✔ AdonisJS ✔✔✔ Composer ✔✔✔Advanced architectural design patterns 🖼 Frontend: ✔✔✔React ✔✔✔VueJS ✔✔✔ Vuex ✔✔✔ Material UI ✔✔✔ Vuetify ✔✔✔ Quasar ✔✔✔ Redux, Saga, Observables, Thunk ✔✔ AngularJS (1.x, 4+) ✔✔✔ RXJS ✔✔✔ WebpackJS, GruntJS/Gulp ✔✔✔ GraphQL , GraphQL subscriptions, cache, link state 📁 Databases: ✔✔✔ Mysql ✔✔✔Postgres ✔✔ Cassandra ✔✔ MongoDB 🗄Caching: ✔✔✔ Redis with clusters ✔✔memcache 📊 Streaming: ✔✔✔ Websockets ✔✔✔ socket.io + Pusher + PubNub ✔✔✔ Redis Pub/Sub ⌛ Dev-ops: ✔✔✔ Kubernetes ✔✔✔ K8s Secrets / Namespaces ✔✔✔ Helm charts ✔✔✔ Linux/Apache/Nginx/Varnish Cache ✔✔✔ Jenkins / Bamboo CI / Buddy ✔✔✔ Docker and VirtualBox ✔✔✔ AWS / s3 / Route 53 / ECS / EC2 / ECR / EKS / GCP / Azure / Amplify ✔✔✔ AWS Serverless ✔✔✔ Testing: Cypress, PHPUnit, Jest, Mocha, Chai ✔✔✔ E2E/BDD/TDD Unit Testing / Protractor / Selenium ✔✔✔ Kubernetes Secrets management AI: ✔✔✔ Knowledge of OpenAI endpoints ✔✔✔ Api integration with eleven labs voice platform ✔✔✔ Langchain / AutoGPT / SQLAgent I have over 16+ years worth of commercial software development experience and my primary languages are PHP and typescript. I have developed solutions which suit people who want to develop cloud based SaaS to market. 🧱 API Development: ✔✔✔Twilio ✔✔✔ Docusign API ✔✔✔ Tesseract ✔✔✔PyTesseract ✔✔✔Backtrader ✔✔✔ OpenCV ✔✔✔ Pyfolio ✔✔✔ OpenGL ✔✔ Tensorflow ✔✔✔Stripe ✔BrainTree ✔✔✔Pusher 🧿 Version Control: ✔✔✔ GIT ✔✔✔ Git Hooks ✔✔✔ Git auto-deploy

🥇 TOP 1% EXPERT-VETTED TALENT | 💯 100% Customer satisfaction rate | 🏆 16+ years of experience 💬 "The communication with the team was outstanding and that's what really helped clear the slightest misunderstanding that could arise. The platform is exactly how we imagined it and we will surely rehire Shapelab in the future." Anaïs Thys - Business Development Manager at Taobé SPRL 💬 "You only need four words to describe Shapelab OÜ: they make it happen." Luciano Bonanno - CEO at Cigno Technology LTD ➡️ WHAT I DO: I help software businesses to transform digitally by providing high-end expert software engineering and consultancy services. ➡️ HOW I DO IT: With long-standing experience across the full software development life-cycle, Shapelab OÜ has the ability to build qualified and flexible teams for your specific project needs, get up to speed with its goals and start delivering the results instantly. We have experience working in various fields, such as Beauty, Wedding, Real Estate, Insurance and Financial Advising, Crypto Currency Exchange Markets. ➡️ WHO I WORK WITH: Having worked with high-growth teams across many industries Shapelab OÜ focuses on software businesses looking to improve their tech side or bring new projects to life. Shapelab OÜ is ready to serve as a full-stack firm capable of undertaking end-to-end any software application development projects (PHP, Laravel, CodeIgniter, WordPress, JavaScript, ReactJS, VueJS, ReactNative, Amazon Web Services) for both market leaders and emerging businesses that are highly scalable. ➡️ WHAT I DELIVER: Shapelab OÜ provides you with a 100% production-ready solution based on top quality and well-documented code built and secured to the highest standards. Our team can surely handle the platforms with big databases (up to 2TB) and millions of monthly hits. ⭐️ Skills - PHP: Laravel, CodeIgniter, Symfony, PHPSlim, CakePHP - Python: Django, Fast API - JavaScript: TypeScript, ReactJS, VueJS - Mobile app development: ReactNative, Flutter, Swift, Kotlin - Database: MySQL, PostgreSQL, ElasticSearch, MongoDB - Cache: Redis, Memcached - Search engine: ElasticSearch, Sphinx - Cloud infrastructure: AWS, Azure 📞 CONTACT ME: If you know anyone that we can help - reach me out and we'll benefit from being connected!

I’m a Senior Backend Engineer and Software Architect with 9+ years of experience building systems that don’t just work but scale, evolve, and stay maintainable over time. I focus on designing and delivering high-performance, reliable backend systems from early-stage concepts to production systems handling real-world complexity. My work spans microservices architecture, event-driven systems, real-time applications, and modern data platforms (including vector databases). I help teams move from "it works" to systems that are clear, stable, and ready to grow. Over the years, I’ve built and maintained platforms across: - Messaging - Audio & Video Streaming - Ride-sharing - eCommerce - FinTech - EdTech - IoT - Blockchain - Enterprise SaaS often operating at scale, with complex workflows and millions of users. What I bring • Strong backend architecture, systems that are easy to reason about and extend • Deep experience in microservices and event-driven design (Kafka, Temporal, Debezium) • Real-time systems expertise, messaging, streaming, live data pipelines • End-to-end ownership, from system design to production deployment • A focus on clarity, not just code, but how everything fits together Tech I work with - Java (Spring Boot), Golang (Fiber), Python (FastAPI) - PostgreSQL, Redis, MongoDB, ElasticSearch, Cassandra, Weaviate - Kafka, RabbitMQ, Temporal, Airflow - Docker, Kubernetes, AWS (plus real-time protocols like WebRTC, MQTT, XMPP when needed) If your system is growing in complexity, slowing down, or becoming harder to evolve that’s usually where I can help the most. Let’s build something that lasts.

I'm a Full Stack Developer React Node, SaaS Developer, and Node.js Developer with 15 years of experience, covering Full Stack development (both Front-end development and Back-end development), SaaS development, Mobile App Development, and AI Automation. A few facts about me: 🏆 100% Job Success score 🏆 Technical partner who cares as about code quality as about business needs 🏆 125+ projects delivered from MVP to enterprise projects 🏆 10,000+ active users across delivered projects What I can develop as a Full Stack Developer React Node and a SaaS Developer: ✔️SaaS MVP, AI-powered SaaS platforms, Multi-tenant SaaS platforms ✔️ AI Automation, AI workflows, AI Chatbot and AI Agent Development that reduces manual operations by up to 70% ✔️ Prototype and proof of concept development saving 40% of budget as a Full Stack node.js react developer ✔️ Custom CRM and ERP systems, Internal tools and other management solution cutting admin costs by 40% ✔️ Booking systems and booking platforms that boosting daily bookings by 30% ✔️ Marketplaces, E-commerce and fintech platforms that boosting sales conversions by 25% ✔️ Scalable web applications and websites ensuring 99.9% uptime as a Full Stack Web Developer ✔️ Admin panel, admin dashboard, and analytics dashboard with charts that cutting reporting time by 60% ✔️ Custom Web Application and other Web Development projects driving 40% more organic traffic ✔️ Mobile applications from design to iOS and Android App Development, covered by React Native developer, Mobile App developer, and Flutter developer positions ✔️ Code audit, Software Architecture & Design, production delivery, debugging, and production bug fixing, reducing errors by 40%. ✔️ role-based access, payment flows, billing and subscription logic, cutting failed payments by 30% ✔️ User Authentication, user management systems, system administrator, and business operations workflows for 10,000+ users Why clients choose me as Full Stack Developer React Node and Node.js Developer: ✔️ MVP development in 4–6 weeks ✔️ AI-first approach using Cursor, Claude Code, Codex, and Lovable for up to 30% faster development as a Full Stack AI Engineer ✔️ AI Development and AI App Development experience across 35+ AI-powered projects ✔️ Improving page load speed by 55% as a Front End developer React and Next.js Developer ✔️ Increased database/API response speed by 5x as a Node.js backend developer and NestJS developer ✔️ Built 120+ API endpoints, microservices, and serverless functions as a MERN Stack developer and javascript developer ✔️ Managed 500K+ records with Database Architecture, Database Design, Prisma, and RLS ✔️ Supported 99.9% uptime with cloud deployment and production deployment ✔️ Reduced deployment failures by 30–40% through CI/CD and release automation ✔️ Handled migration with clear timeline, milestone planning, and long-term maintainability ✔️ Improved user experience, engagement, and visibility through dashboards used by 10K+ users As a Senior Full Stack Developer React Node and SaaS Developer, I have 15+ years of experience with: ⚙️ JavaScript, TypeScript, Python, PHP ⚙️ React, Next.js, App Router, Vite, Vue.js, Angular, Redux, jQuery, HTML, HTML5, CSS, CSS 3, Canvas ⚙️ Node.js, NestJS, Express, WordPress ⚙️ Tailwind CSS, Material UI, Bootstrap, Shadcn/ui ⚙️ SQL, PostgreSQL, MySQL, MongoDB, Supabase, Firebase, Firestore, Redis, Prisma, RLS, Auth ⚙️ Amazon Web Services, AWS S3, AWS Lambda, Google Cloud Platform, Microsoft Azure, Vercel, Railway, DigitalOcean, Cloudflare, Docker, Kubernetes ⚙️ CI/CD (GitHub Actions, GitLab CI), Testing (Jest, Playwright), Monitoring (Sentry), Logging ⚙️ Git (GitHub, GitLab, Bitbucket) ⚙️ LLM, LangChain, RAG, Artificial Intelligence ⚙️ Zapier, n8n, Make, GoHighLevel, GHL ⚙️ HIPAA, GDPR, SOC 2 ⚙️ Figma, Adobe XD, Sketch As a Senior Full Stack Developer React Node and Node.js Developer I have deep experience in API integration: RESTful API, third-party REST API, webhooks, OpenAI API, Stripe API, Twilio API, Anthropic Claude API, ElevenLabs API, ChatGPT API, GraphQL API, WhatsApp business API, Google OAuth, and various Google APIs. As Full Stack Developer React Node and Full Stack Developer SaaS I experience in projects for: Hospitality, Travel, Healthcare, Fitness, Ecommerce, FinTech, Logistics, Finance, Education, E-learning, Retail, HR, Business Services, Media & Entertainment, AI, SaaS marketing, Real Estate platform, etc. 💪 As CTO of Malevich Studio, I can provide: ✔️ UX & UI / Web Design: UX Designer support with Figma, Responsive Design, Adaptive Web Design, Software Design, and Adobe Photoshop for 25–40% conversion improvement ✔️ WordPress developer and cms developer for mobile friendly website support ✔️ Python developer, Full Stack developer Laravel Vue, Java and Ruby on rails 🚀 Click “Invite” if you need a Full Stack Developer React Node, Full Stack AI SaaS Developer, or Node.js Developer.