⚡️𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 ⚡️𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 ⚡️𝐉𝐚𝐯𝐚 𝐄𝐱𝐩𝐞𝐫𝐭 ⚡️𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐄𝐱𝐩𝐞𝐫𝐭 Are you ready to dive into the world of 𝐫𝐨𝐛𝐮𝐬𝐭, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐮𝐬𝐞𝐫-𝐜𝐞𝐧𝐭𝐫𝐢𝐜 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬? Look no further! With over 15+ years of hands-on experience, I'm here to craft software that exceeds your expectations at every turn. 🔧 Technical Expertise: On the backend, I'm a maestro with Java EE/Spring Boot, building servers that are as sturdy as a fortress. Wrangling databases is my forte; SQL is my language, and MySQL, PostgreSQL, and Oracle are my playgrounds. Frontend? Piece of cake! I whip up sleek interfaces using HTML5, CSS3, and dance with JavaScript frameworks like Angular and React. 🏢 Industry Expertise: Finance, e-commerce, healthcare, telecommunications – you name it, I've been there! I know the ins and outs of various industries like the back of my hand. Need secure payment gateways, HIPAA-compliant apps, or turbocharged telecom systems? I've got you covered! 🌟 Why Me? I don't just meet expectations; I exceed them. My commitment to excellence knows no bounds. Collaboration is my middle name. I'm all about teamwork, communication, and getting things done. I live and breathe innovation. Staying ahead of the curve is my jam, ensuring your projects are always cutting-edge. 💼 Let's Collaborate: Ready to elevate your digital presence and drive business growth? Let's team up and make magic happen! Your vision, my expertise – together, we'll create something truly extraordinary. Let's make your next project a resounding success! 🎉 𝗕𝘂𝘇𝘇𝘄𝗼𝗿𝗱𝘀: Full-Stack Development | MERN Stack | MEAN Stack | React.js | Vue.js | Angular | Node.js | Express.js | Next.js | Nuxt.js | RESTful APIs | GraphQL | MongoDB | MySQL | PostgreSQL | Firebase | Docker | Kubernetes | AWS | Azure | GCP | CI/CD | Agile Methodologies | TDD | BDD | DevOps | Microservices | Responsive Design | UX/UI Design | Web Applications | Progressive Web Apps | Single Page Applications | Serverless Architecture | Cloud Computing | Version Control | Git | Frontend Development | Front-End Development | Front End Development | Backend Development | Back-End Development | Back End Development | API Integration | Security Best Practices | Performance Optimization | Scalability | Cross-Platform Development | Mobile App Development | HTML | CSS | JavaScript | TypeScript | SASS | LESS | Bootstrap | Tailwind CSS | Webpack | Babel | SEO Optimization | User Authentication | Authorization | WebSockets | Real-Time Applications | Test Automation | Unit Testing | Integration Testing | End-to-End Testing | Code Review | Continuous Integration | Continuous Deployment | Technical Documentation | Software Architecture | System Design | Project Management | Collaboration Tools | Jira | Trello | Asana | Slack | Python | Django | Flask | Ruby | Ruby on Rails | PHP | Laravel | Symfony | Java | Spring Boot | Kotlin | Swift | Objective-C | C# | .NET | ASP.NET | VB.NET | Go | Golang | Rust | Elixir | C++ | C | Scala | Perl | Haskell | R | MATLAB | Julia | TensorFlow | PyTorch | OpenCV | Xamarin | Ionic | Apache | Nginx | Redis | Elasticsearch | RabbitMQ | Kafka | Jenkins | CircleCI | Travis CI

Need a WordPress website that looks professional, performs well, and is easy to manage? With 300+ successful projects, 6,000+ hours worked, and $100K+ earned on Upwork, I help businesses, agencies, and organizations build, redesign, and maintain WordPress websites that support their growth. My expertise includes: ✔ WordPress Website Design & Development ✔ Website Redesign & Modernization ✔ Elementor & Page Builder Development ✔ WooCommerce Stores ✔ LearnDash & LMS Platforms ✔ Membership & Community Websites ✔ Website Performance Optimization ✔ Ongoing Website Maintenance & Support What clients value most is not just development, but reliable delivery, clear communication, and long-term support. I focus on creating websites that are scalable, secure, and easy for teams to manage after launch. Additional capabilities include: • Accessibility-conscious WordPress development • WCAG 2.1 / 2.2 implementation support • ADA compliance remediation • Keyboard navigation and screen reader compatibility reviews • LMS accessibility improvements Whether you need a complete website redesign, ongoing support, WooCommerce enhancements, LearnDash implementation, or help improving an existing WordPress platform, I would be happy to discuss your project. Let's connect and explore how I can help.

Most web applications don't fail because of bad code; they fail because they aren't built to scale. I love help startups, SaaS companies, and growing businesses build fast, secure, and scalable web applications that continue performing as your business grows. Whether you're launching an MVP, building a SaaS platform, modernising an existing application, or adding new features, I focus on writing clean, maintainable code that delivers long-term value rather than technical debt. With 100+ successful projects, $100K+ earned, 7,200+ hours worked, and a Top Rated Plus profile, I've partnered with businesses worldwide to develop reliable web applications that are easy to maintain, highly performant, and built with future growth in mind. What I Can Help You Build ✔ SaaS Applications ✔ Custom Web Applications ✔ CRM & ERP Systems ✔ Admin Dashboards ✔ AI-Powered Web Applications ✔ E-commerce Platforms ✔ Internal Business Tools ✔ REST APIs & Third-Party Integrations ✔ WordPress & WooCommerce Solutions Tech Stack Frontend: React.js, Next.js, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS Backend: Node.js, Express.js, REST APIs, GraphQL Database: MongoDB, PostgreSQL, Firebase Cloud & DevOps: AWS, Docker, Git What Makes My Development Process Different I don't start by writing code. I start by understanding your business goals, users, and product vision so every technical decision supports your long-term growth. My focus is on: • Clean, scalable architecture • Fast and responsive user experience • Secure and maintainable code • SEO-friendly and performance-optimized applications • Reliable APIs and third-party integrations • Ongoing support and future scalability Why Clients Work With Me ✔ Business-first approach, not just coding ✔ Clear communication and regular updates ✔ Reliable delivery and realistic timelines ✔ Long-term support after launch ✔ Clean code that's easy to maintain and scale I believe successful development isn't just about building features it's about creating products that solve real business problems, perform reliably, and continue delivering value as your company grows. If you're looking for a developer who understands both the technical and business side of building modern web applications, I'd love to discuss your project. Let's build something that's fast, scalable, and built to grow with your business. Keywords: React.js, Next.js, Node.js, JavaScript, TypeScript, Express.js, MongoDB, REST API, HTML5, CSS3 WordPress, WooCommerce, Tailwind CSS, API Integration, Responsive Web Design

"Helping companies get more value from Salesforce through architecture, automation, integrations, and scalable CRM strategy." Hi, I'm Pavel - a Top Rated Plus Salesforce expert and I help businesses transform Salesforce into a system that drives revenue, improves operations, and scales with growth. With 16+ years of hands-on Salesforce experience and 200+ successful projects delivered, I've worked with startups, SMBs, and enterprise organizations to build CRM solutions that solve real business challenges — not just technical requirements. Whether you need to optimize sales processes, automate operations, implement CPQ, integrate third-party systems, or architect a complex multi-cloud environment, I can help. 🔹 What I Do Best • Salesforce Architecture & Consulting – Scalable solutions aligned with business goals. • Custom Salesforce Development – Apex, Lightning Web Components (LWC), Visualforce, and enterprise-grade applications. • Automation & Process Optimization – Flows, approvals, orchestrations, and workflow automation that reduce manual work and increase productivity. • Salesforce Integrations – Seamless integrations with ERP, finance, marketing, support, and custom platforms. • CPQ & Revenue Operations – Configure, Price, Quote solutions that simplify complex sales cycles and accelerate deal closures. • Data Migration & CRM Transformation – Secure migrations, data quality improvements, and large-scale Salesforce modernization projects. ☁️ Salesforce Expertise Sales Cloud | Service Cloud | Experience Cloud | CPQ | Marketing Cloud | Pardot | Field Service | Health Cloud | Revenue Operations 🏆 Certifications Salesforce Certified Application Architect Salesforce Platform Developer II Platform Developer I Administrator Platform App Builder Integration Architecture Designer ✨ Results Delivered ✔ Automated business processes, reducing manual effort by up to 60% ✔ Built customer portals that significantly reduced support workload ✔ Delivered enterprise CPQ implementations with advanced pricing and approval workflows ✔ Integrated Salesforce with 40+ external platforms including ERP, finance, marketing, and communication systems ✔ Successfully migrated millions of records while maintaining data integrity and compliance 🏢 Industries Served SaaS | Healthcare | Financial Services | Manufacturing | Real Estate | Education | E-commerce | Professional Services My approach: Understand the business - Build the right Salesforce solution. I focus on creating systems that users actually adopt, leadership teams trust, and businesses can scale on for years. If you're looking for a Salesforce Architect or Salesforce Developer who combines deep technical expertise with strong business understanding, I'd be happy to discuss your project.

I'm a full-stack web developers with many years of experience working with different teams and technologies. Through the years, I had to wear many hats - from frontend developer to Linux server sysadmin. I help small design agencies to manage their servers, build their websites and keep everything secure. I focus mainly on WordPress websites and PHP web applications. I'm not afraid of working on the legacy code, I still maintain an old platform written in PHP5. So if you want to free up your development team from legacy burden, I'm the person you want to hire. I've been working remotely for more than 6 years, and I know the power of good communication.

I’m a Full Stack Developer with 10+ years of experience building scalable, high-quality, and user-friendly web applications. I specialize in both frontend and backend development, delivering reliable solutions from concept to deployment. 💻 Core Skills: Backend: PHP, Laravel, CodeIgniter, CakePHP, REST APIs, Node.Js Frontend: React, HTML5, CSS3, Bootstrap CMS/eCommerce: WordPress, OpenCart, mooSocial, SocialEngine 🤖 AI Integration & Automation: I have hands-on experience integrating OpenAI, Claude, xAI, Ollama, and Model Context Protocol (MCP) into real-world applications. I build AI-powered features like chatbots, AI agents, content generation tools, and smart automation workflows. 🔗 API & Payment Integrations: Experienced with REST APIs, PayPal, Stripe, Square, Pay.jp, JazzCash, PaymentWall, Facebook, and Twitter integrations. 🚀 What I Offer: Clean, maintainable, and well-documented code Smooth API and third-party integrations AI-powered solutions and automation Responsive and intuitive UI/UX Reliable communication and on-time delivery I focus on building efficient, scalable solutions that help businesses grow and stand out. Let’s connect and bring your ideas to life!

Your AI prototype works in a notebook. Making it survive production (async queues, retry logic, latency budgets, real users), - that's where I come in. Backend: - Production-ready APIs (FastAPI, Django, Flask) - Database design and performance tuning (PostgreSQL, Supabase) - Secure authentication, roles, and permissions - Refactoring unstable or experimental AI-heavy codebase - Dockerized deployments and cloud readiness AI and LLM systems - LLM-powered automation - Custom AI agents and assistants (LangChain) - Optimizing AI pipelines for latency, reliability, and cost - Hardening AI features for production use Automation and AI Workflows - AI-driven workflow orchestration (human-in-the-loop, fallback logic) - End-to-end automation using n8n, Zapier, Make - Connecting AI systems to internal services and third-party APIs My tech stack: Claude Code (yes, I use it a lot to save time and be productive!), Python, FastAPI, Django, Flask, PostgreSQL, Supabase, Docker, Git, LangChain, Kubernetes, GCP, Azure. My recent production projects: • AI Support Ticket Processing System Built an end-to-end backend for an AI system that automates ticket routing and resolution. Focused on latency optimization and building reliable fallback mechanisms so the LLM doesn't hallucinate critical client data. (Tech: FastAPI, LLMs, PostgreSQL) • Back-end developer at a Czech fintech company (Fair Play). Developed and shipped critical features in a high-stakes environment on GCP/Kubernetes. Improved test coverage from 60% to 92%, reduced deployment failures by 80%, and optimized services to handle peak loads with zero downtime. Result: Faster feature releases and enhanced system reliability in a compliance-heavy industry. • Part-time Python back-end developer in a foreign company Glasswall Solutions. Worked on unit tests, bug fixes and project features. We were using Azure as our cloud service provider. Dealt with Paramiko Python library. • Custom CRM development at Hyperbach company This is an internal CRM / HRM platform. It includes 3rd-party API integrations, REST API development, and DB management. It is being written from scratch in Python, Flask, Alembic, PostgreSQL, Docker, Vue.js. Delivered a robust internal tool that automated HR processes, saving the team 20+ hours/week in manual work and scaling to support 500+ users seamlessly. • Custom FastAPI backend for SaaS business I designed and implemented a production-grade FastAPI backend for a mid-size internal SaaS tool used by a distributed team. The project required a clean, scalable architecture capable of supporting multiple user roles, growing feature sets, and third-party integrations. The backend was built using an asynchronous, modular structure, allowing the system to handle high loads and remain maintainable as new features are added over time. If you have an AI prototype that needs to become a real product or you need a solid backend built from scratch, let's talk.

# You need an honest and dedicated person passionate about technology # You see value of me running a 40x man software house built organically Software engineers from Poland are consistently ranked among the world's best, frequently placing in the TOP 3 globally on platforms. If you're still reading here, it means we might be a fit. I handle full products or build a dedicated team to works for you. I have clients working with for 12+ years now, but also do on-time proof of concept jobs. I like what I do as I enjoy bringing tech value and meeting people. I'm now a serial founder, advisor and a VC investor in Sweden and Singapore funds. But don't just take my word for it: 💬 “Not only was I impressed with the timely delivery of quality products, but I was also impressed by his integrity. I recommend Kacper 100% and would be happy to speak to anyone to provide more details!” – Brad M.
 💬 “Kacper, your company was able to deliver a working product where others have failed.” – Jamie J. 💬 “These guys have turned me around. They were flexible, responsive, fast, gave great feedback and got the job done. They have become my "go to" dev team.” – Tony C.
 💬 “Milo team has been fantastic and as dedicated as our employees in delivering high quality code and software.” – Mojgan H.
 💬 “Milo has delivered all the benefits of outsourcing with none of the problems.” - Mark M. 
 Here's a boring list of what my team and I can do for you. Hopefully Upwork will position my account higher because of this nice list below: ✅ Pre-Implementation Analysis (PIA): Before writing a single line of code, we create a clear roadmap through collaborative workshops to: • Define your business goals and user workflows • Reduce development risks by addressing challenges upfront • Speed up delivery with well-defined technical plans • Stay on budget by avoiding costly surprises What you get: • Business analysis - Goals, workflows, feature alignment • Technical architecture - Tech stack, UI/UX prototypes, scalability strategies • Development roadmap - POC to full product launch milestones • Workshop insights - Actionable next steps ✅ UI/UX Design & Product Design - User-Friendly Interfaces: Our design process creates beautiful, intuitive experiences: • UX research to understand user needs • Rapid prototyping and wireframes • High-fidelity mockups and design systems • Usability testing for seamless experiences 🛠️ Design tools: Figma, Adobe XD, Sketch, InVision, Balsamiq, Axure, Proto, Framer ✅ Full-Stack Development: • Architecture: Client-Server, Layered, Event-Driven, Peer-to-Peer (P2P), Plug-ins, Microservices, MVC ✅ Frontend & Backend Technologies: • Frameworks: Django, React, Angular, Node , Vue, Ember, Semantic-UI, Backbone, jQuery, Qt, Flutter, React Native • Languages: JavaScript, Python, C++, Qt, C, HTML, CSS, Rust, Perl, Go, TypeScript, SQL, Objective-C, Swift, Assembly, R • Databases: PostgreSQL, Redis, Elasticsearch, MySQL, SQLite, Oracle, MongoDB, SQL Server • DevOps: Git, Jenkins, Docker, Kubernetes, AWS, Ansible, Microsoft Azure, Vagrant, CI/CD pipelines, Sentry, Google Cloud, Selenium ✅ Mobile & Web Applications: • Cross-platform mobile apps (iOS, Android) • Progressive web applications (PWA) • Enterprise web solutions • API development and integrations ✅ Testing & QA: Comprehensive testing strategies: • Test-Driven Development - Catch issues early • Manual testing - Real-world scenario validation • Automated testing - Performance and accuracy • Cross-platform testing - Web, mobile, desktop, embedded systems ⚙️ QA Platforms: • Web: Chrome, Safari, Edge, Opera, Firefox, Brave • Mobile: Android, iOS, ChromeOS, Tizen • Desktop: Windows, macOS, Linux, ChromeOS • Embedded: Raspberry Pi, Arduino, SparkFun, Beagleboard, BeagleBone Black, NVIDIA, Rock Pi, SimpleLink, UDOO, QNX, VxWorks, Seeed, Intel Nuc, Embedded Linux, Odroid-C2, Banana Pi, Qualcomm Snapdragon • Protocols: I2C, SPI, USART, USB, DMA, I2S, ADC, DAC, CAN, Ethernet 🛠️QA Tools: TestRail, Selenium, Appium, Cypress , Postman, JMeter, Robot Framework, BrowserStack, Cucumber, Katalon, Squish, Zephyr, Bugzilla, Testim, SoapUI 💼 Industries we serve: • FinTech & Blockchain solutions • Healthcare & Biotech applications • E-commerce & Marketplaces • Education & EdTech platforms • Business Operations software • Embedded Systems & IoT • Travel & Hospitality apps 👨🏻‍🏫 Advisory & Fractional CTO Services: With 15+ years building software across 4 continents I can consult on: • Product strategy and technical roadmapping • Technology selection and architecture decisions • Team scaling and development processes • Investor-ready technical due diligence Ready to take your idea from concept to reality? Let’s talk. 📞

Senior Full-Stack Developer • Performance Optimization Expert Java, Kotlin, JavaScript (frontend/backend), C++, Python, PHP, Perl SQL/NoSQL, Web/Desktop apps, Automation, Web Scraping I help companies make their software faster, lighter, and more efficient. 20+ years of hands-on experience in system performance tuning, profiling, solving bottlenecks, and refactoring legacy systems. If your application is slow, unstable, memory-hungry, or needs deep analysis — I can fix it. ⸻ 🧩 My Core Expertise • Performance optimization (Java/JVM, databases, backend services) • Query optimization, memory leak detection, code profiling • Refactoring legacy code, stabilizing old systems • Full-stack development (Java/Kotlin + JS, Python, PHP, Perl, C++) • Web automation & scraping • Systems analysis, debugging, complex issue resolution ⸻ 🚀 What I Deliver • Faster request processing • Reduced memory & CPU usage • Significantly improved database performance • Clean, maintainable, well-structured code ⸻ 🤝 Availability Open to long-term or part-time collaboration (30–40 h/week). Also interested in innovative startups: your idea — my implementation. ⸻ Let’s make your software fast, stable, and scalable!

Hi, I am Oleg, your Top Rated Plus, certified Salesforce Developer and Architect with 15+ years of experience delivering scalable, high-impact Salesforce solutions. I specialize in complex Salesforce implementations and AppExchange applications using Apex, Lightning Web Components (LWC), Flows, and Salesforce API integrations, AI adoptions, helping businesses automate operations, improve customer experience, and turn Salesforce into a reliable long term growth platform. Over the last years, I’ve successfully delivered 300+ Salesforce projects across industries including Healthcare, Finance, eCommerce, Education, Real Estate, Recruiting and more. My expertise covers: - Salesforce CRM Implementations & Customization - Lightning Components & UI Development - AppExchange App Development - Advanced API Integrations & Scalable Architectures - Sales Cloud - Service Cloud - Experience Cloud - Salesforce Sites - Customer Portals - Field Service Cloud - B2B Commerce Cloud - Data Cloud Why I'm a great fit: ✔️ Clean, future-ready Salesforce solutions ✔️ Reliable delivery & proactive communication ✔️ Business-focused approach (tech and strategy) 📜 Salesforce Certifications: - Salesforce Platform Developer I & II - Salesforce Administrator - Salesforce Developer - Salesforce App Builder If you’re searching for a person who can not only write code but translate business goals into efficient, scalable Salesforce solutions - just DM me, I am always available for new opportunities! Together we can make Salesforce the engine of your growth 💡