I help startups and businesses build AI-powered SaaS platforms, mobile apps, and scalable web products from idea to production. With 10+ years of experience and 200+ successful projects, I specialize in MVP development, AI integration, and scaling products for real-world usage. I have worked on high-scale applications with over 10M users, along with multiple SaaS, fintech, and marketplace platforms across global markets. What I deliver: MVPs ready for funding and go-to-market AI-powered features using ChatGPT, OpenAI, and automation Scalable SaaS platforms with clean architecture Mobile apps with strong performance and user retention AI and ChatGPT expertise: OpenAI GPT-4, ChatGPT, Whisper, DALL·E AI chatbots, AI agents, generative AI SaaS LangChain, LlamaIndex, RAG pipelines Vector databases like Pinecone and FAISS Full stack development: Frontend: React, Next.js, Angular Backend: Node.js, NestJS, Python (FastAPI, Django) Databases: PostgreSQL, MongoDB Mobile app development: Flutter, React Native, Swift, Kotlin Payment integrations, subscriptions, Firebase Cloud and DevOps: AWS, Azure, Docker, Kubernetes CI/CD and scalable deployments Why clients work with me: Strong focus on business outcomes, not just code Fast MVP delivery with clear timelines Clean, scalable, and secure systems Long-term support and product thinking Best fit: Startups building AI or SaaS products Founders preparing for launch or funding Businesses scaling existing platforms If you are building something serious, I can help you plan, build, and scale it the right way.

🚀 Projects delivered 100% on time 🗽 US based (Florida & New York) ✅ Our clients: BMW, Toyota, NFL, Mercedes Benz, Korean Air, Doctor on Demand, Rakuten, and more. 💯 100% JSS and client satisfaction. 🌟 Upwork Top Rated Plus. 🏆 Multiple Award Winners for AI Development, Mobile App Development & Custom Software Development. ⭐️⭐️⭐️⭐️⭐️ on Google, Clutch, Design Rush, Tech Behemoth & more. I'm Kirill Storch, founder of ELEK+RIK since 2010, with 15 years of experience turning ideas into working software for US and Global brands. We focus on long-term projects and work only with serious clients who want to get things done. 𝙃𝙚𝙧𝙚'𝙨 𝙝𝙤𝙬 𝙬𝙚 𝙘𝙖𝙣 𝙝𝙚𝙡𝙥 𝙮𝙤𝙪: 𝟭. 𝘾𝙪𝙨𝙩𝙤𝙢 𝙎𝙤𝙛𝙩𝙬𝙖𝙧𝙚 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: 🔹 Imagine you have an idea for software that fits your exact needs, but you're not sure how to build it. I handle it from scratch - coding custom solutions with features like user tracking and simple updates. This gets your software up and running quickly, lets you see real usage patterns, and allows easy adjustments to keep it effective and scaling as your business grows. 𝟮. 𝘾𝙪𝙨𝙩𝙤𝙢 𝙒𝙚𝙗 𝘼𝙥𝙥 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: 🔹 Imagine you have this idea for a web app, but you're not sure where to start. We take it from there- coding everything from the ground up, adding features like user tracking and easy edits. It means your app launches faster, you can watch how people use it, and tweak things on the fly to keep it useful and growing with your needs. 𝟯. 𝙁𝙪𝙡𝙡-𝙎𝙩𝙖𝙘𝙠 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 & 𝙄𝙣𝙩𝙚𝙜𝙧𝙖𝙩𝙞𝙤𝙣𝙨 🔹 Think of it like building a house where the front door and the foundation both matter. We handle the user-facing parts for a smooth experience and the back-end stuff like databases and connections. This way, all your tools talk to each other without glitches, fewer errors pop up, and as your business picks up, the whole thing scales up naturally without falling apart. 𝟰. 𝙒𝙚𝙗𝙨𝙞𝙩𝙚 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 & 𝙊𝙥𝙩𝙞𝙢𝙞𝙯𝙖𝙩𝙞𝙤𝙣: 🔹 You know how frustrating a slow site is? We build websites that open quickly on phones or computers, with clean designs and built-in search boosts. It helps more people find you online, stick around longer, and actually buy or sign up - instead of clicking away because it's clunky. 𝟱. 𝙏𝙚𝙡𝙚𝙢𝙚𝙙𝙞𝙘𝙞𝙣𝙚 𝘼𝙥𝙥 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: 🔹 If you're looking to set up remote health care, we build web apps that link patients to doctors safely. Think video chats, sharing records, and booking slots—all from home. This cuts down on trips to the office, keeps info private with encryption, and lets care happen anytime, helping your service reach more people without extra hassle. 𝟲. 𝘼𝙄 𝙄𝙣𝙩𝙚𝙜𝙧𝙖𝙩𝙞𝙤𝙣 🔹 We integrate AI into your web apps, custom software, or mobile apps, like spotting patterns in user data or automating simple tasks. We hook it up to handle things like recommendations or quick queries, so it adapts over time and gives useful insights right away. This saves manual work, and boosts how well the app serves users. 𝙏𝙤𝙤𝙡𝙨 & 𝙎𝙠𝙞𝙡𝙨: JavaScript, PHP, Java, MySQL, CSS, WordPress, React, Node.js, AWS, API integrations, Android, iOS, Web App Development, Artificial Intelligence (AI), Machine Learning algorithms, Blockchain, Internet of Things (IoT), Biometric Facial Recognition, Smart Contracts, UX Design, Third-Party Integrations, Real-Time Data Processing, Analytics, Security Systems, Authentication, Performance Optimization. 𝙄𝙣𝙙𝙪𝙨𝙩𝙧𝙞𝙚𝙨: Automotive, Aviation and Travel, Healthcare, E-commerce, Sports and Entertainment, Transportation and Accessibility, Media and Journalism, Environmental and Sustainability, Supply Chain and Logistics, Beverage and Hospitality, Food and Beverage, Tech. We hold 5.0 ratings on Clutch from 7 reviews, plus we have won multiple awards for AI Development and Mobile App Development & Custom Software Development. We deliver on schedule, talk every day, and handle problems fast. Clients pick us for straight talk and solid work, with unlimited revisions or money back. 𝙍𝙚𝙖𝙙𝙮 𝙛𝙤𝙧 𝙖 𝙬𝙚𝙗 𝙖𝙥𝙥 𝙩𝙝𝙖𝙩 𝙜𝙧𝙤𝙬𝙨 𝙮𝙤𝙪𝙧 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨? 𝙍𝙚𝙖𝙘𝙝 𝙤𝙪𝙩 - 𝙩𝙝𝙚 𝙗𝙚𝙨𝙩 𝙬𝙖𝙮 𝙩𝙤 𝙜𝙚𝙩 𝙨𝙩𝙖𝙧𝙩𝙚𝙙 𝙞𝙨 𝙬𝙞𝙩𝙝 𝙖 𝙛𝙧𝙚𝙚 𝙘𝙖𝙡𝙡. 𝘛𝘦𝘴𝘵𝘪𝘮𝘰𝘯𝘪𝘢𝘭𝘴: 1. Kirill helped me with web app development for my online store. He coded it from scratch and fixed all issues fast. Now it runs without any bugs and handles more users. Great work. 2. Kirill did mobile app development for my fitness tracker idea. He built it for iOS and Android, added user profiles and real-time data sync. It launched on time, and users like the simple design. 3. Kirill and his team handled AI development for our customer service tool. They created custom agents that answer queries and automate tasks like bookings. The integration with our existing system was easy.

I’m a Senior Full Stack Developer with 10+ years of experience building scalable SaaS platforms, AI-enabled systems, and cross-platform desktop applications. I specialize in taking products from idea → MVP → production, with strong ownership of architecture, performance, and clean code. ✅ Frontend React.js Next.js (App Router, SSR/ISR) Angular TypeScript Tailwind CSS ✅ Backend Node.js (Express / Fastify / NestJS) Python (FastAPI / Django) REST APIs OAuth / JWT / RBAC Stripe integrations ✅ Desktop Development Electron (Windows & macOS) Cross-platform packaging OS integrations Auto-update systems ✅ AI / LLM Work OpenAI API integration AI SaaS platforms Resume tailoring systems Agentic workflows Prompt orchestration AI-assisted automation ✅ Database & Infra PostgreSQL Supabase MongoDB CI/CD Cloud deployments (AWS / Vercel)

Senior Data Engineer and AI Engineer with 15+ years in data engineering, AI engineering, and cloud data platforms. I build production data pipelines, ETL workflows, LLM and RAG systems, and machine learning infrastructure on AWS, GCP, Azure, Snowflake, Databricks, and Apache Spark. Most of my data engineering work is end to end. I take a messy data problem, or an AI feature that "almost works," and turn it into something reliable that runs in production without someone babysitting it. After 15+ years as a data engineer, you learn the hard part is rarely the model or the framework. It's the data, the edge cases, the pipelines, and keeping the system maintainable once you've handed it over. As an AI engineer I treat LLM and RAG work the same way: take a prototype that almost holds together and make it a production AI system that survives real traffic, real users, and real data. Recent data engineering and AI engineering projects: - An AI inbound phone system built on Twilio with OpenAI Whisper and GPT-4, handling real-time voice intake and call routing. - Enterprise Power BI data models for healthcare and financial reporting, around 30 tables and 40+ DAX measures, including IFRS 9 staging, RAROC, and NIM trends. - HL7 FHIR R4 integrations with Epic, Cerner, and Athenahealth for a clinical AI platform. - Cut LLM inference cost on a high-volume voice product by 25% by reworking how it used the OpenAI Realtime API and its per-turn token replay. Data engineering: Apache Spark, PySpark, dbt, Apache Airflow, ETL and ELT pipelines, data warehousing, data modeling, Snowflake, BigQuery, Redshift, Databricks, Delta Lake, Kafka, Kinesis, Fivetran. AI engineering and machine learning: OpenAI GPT-4o, Claude, Gemini, LangChain, LlamaIndex, RAG pipelines, AI agents, prompt engineering, vector search (Pinecone, Weaviate, pgvector), PyTorch, TensorFlow, scikit-learn, MLflow, model deployment. Cloud and DevOps: AWS (Glue, EMR, Lambda, Redshift, SageMaker, Athena), GCP (BigQuery, Dataflow, Vertex AI), Azure (Synapse, Data Factory, Azure ML), Terraform, Docker, Kubernetes, GitHub Actions. Automation and integration: n8n, Make, Power Automate, REST and GraphQL APIs. Governance and compliance: GDPR, HIPAA, SOC 2, RBAC, PII masking, encryption, data lineage. Languages: Python, SQL, Scala, PySpark, FastAPI, Flask. How I work: I'd rather ask the right questions up front than build the wrong thing quickly. I'll tell you when something is a bad idea, give you timelines I can keep, and leave you with code and documentation your own team can maintain. I've delivered data engineering and AI engineering projects for startups and enterprises across the US, Europe, and Asia. If you're looking to hire a data engineer or AI engineer who can own the work end to end, from raw data pipeline to production AI system, I'm available now. Tell me what you're building and I'll give you a straight answer on how I'd approach it.

👋 Hi, I’m Anas Masood a Full-Stack Developer and AI Engineer with over 10 years of experience delivering production-grade web applications, AI-powered tools, and scalable SaaS platforms. I’ve worked with startups, enterprise clients, and product teams to build full-stack solutions from scratch, modernise legacy systems, and bring AI-first products to life using cutting-edge technologies. Whether it’s designing system architecture, leading complex API integrations, or crafting pixel-perfect UI. I bring both strategic and technical ownership to every project. 🔧 My Core Expertise: Frontend: React.js, Next.js (13+), TypeScript, Tailwind CSS, Chakra UI Backend: FastAPI, Node.js (Express/Nest), Django, Ruby on Rails. AI / LLM Integration: LangChain, OpenAI (GPT-4), Anthropic Claude, Pinecone, RAG systems Database: PostgreSQL, MongoDB, Supabase, Firebase, Redis Infra & DevOps: Docker, Vercel, Railway, AWS (ECS, Lambda, S3), CI/CD pipelines Tools: tRPC, Stripe, Supastarter, Cursor IDE, Playwright (browser automation), GitHub Actions. 🧠 AI & Agentic Experience: Over the last 3+ years, I’ve specialised in LLM-backed applications — including research agents, autonomous workflows, document parsing, and GPT-based chat systems. I’ve built retrieval-augmented generation (RAG) pipelines, vector search indexing with Pinecone, and real-time LLM interfaces using LangChain and FastAPI. 💡 Projects like HeyEve.ai (AI-powered legal training assistant) and GPT-enabled dashboards for internal tools reflect my deep understanding of AI system design, prompt architecture, and seamless frontend-to-LLM interaction. ✅ Why Clients Work With Me: 10+ years of battle-tested experience in full-stack and AI product delivery Strong communication, async-friendly, and proactive problem-solver Familiar with fast-paced startup environments and MVP-to-scale roadmaps I read documentation thoroughly, ask smart questions early, and deliver well-tested code Available for daily standups and Jira/GitHub-based workflows ✅ Why Clients Work With Me: 10+ years of battle-tested experience in full-stack and AI product delivery Strong communication, async-friendly, and proactive problem-solver Familiar with fast-paced startup environments and MVP-to-scale roadmaps I read documentation thoroughly, ask smart questions early, and deliver well-tested code Available for daily standups and Jira/GitHub-based workflows.

Senior .NET Core & Angular Developer | SaaS, CRM & Enterprise Application Specialist I help startups, SMEs, and enterprises build scalable, secure, and high-performance web applications using ASP.NET Core, Angular, Azure, and modern cloud technologies. With 10+ years of experience in full-stack development, I have successfully delivered SaaS platforms, CRM systems, ERP solutions, enterprise portals, eCommerce applications, and custom business software for clients across the United States, United Kingdom, Australia, Canada, Europe, and the Middle East. ## What I Can Help You With ✅ ASP.NET Core & C# Application Development ✅ Angular, React & TypeScript Frontend Development ✅ REST API & Microservices Architecture ✅ Azure Cloud & AWS Solutions ✅ SQL Server & PostgreSQL Database Design ✅ SaaS Product Development ✅ CRM & ERP Development ✅ Legacy Application Modernization ✅ Performance Optimization & Troubleshooting ✅ Third-Party API Integration ✅ Authentication & Authorization (JWT, OAuth, Identity) ✅ Clean Architecture & SOLID Principles ## Technical Expertise **Backend:** ASP.NET Core, .NET 8/9, C#, Entity Framework Core, Web API, Minimal API, Microservices **Frontend:** Angular, React, TypeScript, JavaScript, HTML5, CSS3, Bootstrap, Angular Material **Cloud & DevOps:** Microsoft Azure, AWS, CI/CD Pipelines, Docker, GitHub Actions **Databases:** SQL Server, PostgreSQL, MySQL **Architecture:** Clean Architecture, Domain-Driven Design (DDD), SOLID Principles, Repository Pattern ## Why Work With Me? ✔ Top Rated Freelancer ✔ 100% Job Success Score ✔ 10+ Years of Professional Experience ✔ Strong Communication & Transparent Reporting ✔ Long-Term Client Relationships ✔ Reliable Delivery & Quality-Focused Development Skill- ASP.NET Core ,.NET 8,Angular,Web API,Azure,SaaS,CRM,Microservices,Entity Framework Core, SQL Server. Whether you need a new application built from scratch, an existing system enhanced, APIs developed, performance issues resolved, or a dedicated full-stack developer for your team, I can help turn your requirements into reliable and scalable solutions. Let's discuss your project and how I can contribute to its success. #ASPNETCore #DotNet #CSharp #Angular #React #TypeScript #WebAPI #Microservices #Azure #AWS #SQLServer #PostgreSQL #SaaS #CRM #ERP #FullStackDeveloper #EnterpriseApplications #SoftwareDevelopment #CloudDevelopment #APIIntegration

You have a product idea, a business problem, or a system that needs to be built right. We've done this 100+ times. AB Ark is a 12-year-old software agency that builds AI-powered web apps, mobile products, SaaS platforms, and enterprise ERP systems — end to end, from discovery to deployment. We don't just write code. We think like product owners. Our team includes BAs, architects, UI/UX designers, and senior engineers who have shipped products across healthcare, fintech, real estate, e-learning, logistics, and more. ━━ What we build ━━ ✦ SaaS platforms & web applications (React, Node, Laravel, Python) ✦ Mobile apps — iOS, Android, Flutter (cross-platform) ✦ AI & automation — ChatGPT integrations, intelligent workflows, ML pipelines ✦ ERP & custom enterprise software — operations, HR, supply chain, finance modules ✦ MVP development — structured 2–4 week sprints with working prototypes ━━ Why clients choose us ━━ ✦ Full BA process — wireframes, user flows, and architecture before a line of code ✦ Fixed-scope or milestone-based contracts — no bill shock ✦ Direct access to senior engineers, not outsourced to juniors ✦ Post-launch support & maintenance included ━━ Tech stack ━━ React.js · Next.js · Node.js · Python · React Native · Swift · Kotlin · AWS · Docker · PostgreSQL · MongoDB · OpenAI API · LangChain If you're evaluating agencies, here's what I suggest: share your project brief and I'll send back a scoped proposal with wireflows and architecture ASAP — at no cost. Let's build something great together.

Hello✋. I am a result-driven Full Stack expert, leading a team of Full Stack engineers and UX/UI designers - QIT Software, a Team Augmentation company, that unites professional digital creators. We can build any web and mobile product, using the latest technologies of your choice. Either you need Web & Mobile apps, scripts, libraries, and browser extensions, we can do it. Technologies we work with: ✅ React, Vue, Angular, Node, PHP, Java, Python, .NET, C/C++, Golang, Swift, Kotlin, Flutter, Ionic, etc. ✅ SQL, MySQL, PostgreSQL, OracleDB, MongoDB, DynamoDB, MariaDB, SQLite, Fireabase, etc. ✅ AWS, Azure, Google Cloud, etc. ✅ ES6/7+, JavaScript, TypeScript ✅ Responsive CSS / CSS3 , LESS / SASS / SCSS ✅ Responsive frameworks - Bootstrap, Material UI, AntDesign, TailwindCSS ✅ GitHub, GitLab, Bitbucket ✅ Figma, Zeplin, InVision, Sketch ✅ JIRA, Trello, Asana ✅ TDD, Unit testing, E2E testing We work fast and our code is clean, w3c valid, semantic, and easy to maintain. ⚡ We take care of things and help companies to: - extend tech teams with talents, who will exclusively work on the project; - reach flexibility by scaling both up and down; - avoid painful expenses of in-house hiring and recruiting agencies; - avoid uncertainties about the right candidate; - launch a project to production without major issues and respect your deadlines; - save on in-house engineer team without saving on product quality; - sufficiently decrease time-to-market; - hit those KPIs and maximize ROI. 📍 By working with QIT Software you get: - a streamlined onboarding time for new team members; - an outstanding cost-quality ratio that will get more room for new ideas and features; - simplified tax system to the reduced staff; - stress release; we handle all the paperwork and cover all the desk costs; - a transparent direct line of communication; - full development process supervision of your remote team. 🚀 We help companies grow. Send me an invitation and I will get back to you shortly. We are looking forward to building something cool with you!

# 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. 📞

I am a Java developer with over 14 years of experience building full stack applications, enterprise systems, and SaaS platforms 🚀 My focus 🎯 is on using Java, Spring Boot, React.js, PostgreSQL, and AWS to deliver reliable, scalable software. As a Java developer, I have delivered dozens of projects across industries and use cases. My backend work is built entirely with Java. I create secure APIs and microservices using Spring Boot. I have deep experience in system architecture, backend performance, and database design. Every project I take as a Java developer is written with clean, maintainable Java code. I know how to structure services that scale. As a Java backend developer, I have built and maintained systems for high-load traffic, third-party integrations, and complex business logic. I manage full backend pipelines, from architecture and development to deployment and monitoring. I use Spring Boot and follow best practices every Java developer should apply. I also work as a full stack Java developer, connecting Java backends with React.js and JavaScript frontends. I create dashboards, user interfaces, and admin tools that are fast, stable, and fully integrated. I know how to deliver full stack features without bottlenecks. I have led teams as a senior Java developer, mentoring other developers, reviewing Java code, and improving team performance. My clients rely on me not just for development, but also for decisions about architecture, data structure, and deployment strategy. As a Java developer, I care about the full picture. In most projects, I take the role of a Java spring developer and own the backend infrastructure. I work with Docker, PostgreSQL, REST APIs, and cloud services. I often work independently, taking full responsibility for both backend and frontend parts as a full stack developer. Being a professional Java developer means I deliver production-ready code, meet deadlines, and communicate clearly. I work well with teams or as a solo contributor. My background as a Java backend developer and Java spring developer allows me to adapt to different project needs. If you need a Java developer who can work on backend systems, full stack features, or cloud-based platforms, I am ready to help. Whether you need a senior Java developer, a Java backend developer, or a reliable full stack Java developer, I can take your project from idea to production. 🛠️ Core Skills: - Java developer - Java backend developer - Full stack Java developer - Java spring developer - Spring Boot microservices - React.js and JavaScript - PostgreSQL, AWS, Docker Let’s talk if you need a results-driven Java developer to join your team or take over delivery. ‼️ Message me for a free 40-minute consultation ‼️