Java Developers for hire in Germany
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Hire iosifpeterfi
Senior Full-Stack Engineer & Systems Architect with 15+ years in enterprise-grade IT and web development. I design, build, and operate high-availability infrastructure and modern web applications—from frontend to backend to cloud. My focus: reliability, security, clean code, and clear documentation. Strengths: •...Senior Full-Stack Engineer & Systems Architect with 15+ years in enterprise-grade IT and web development. I design, build, and operate high-availability infrastructure and modern web applications—from frontend to backend to cloud. My focus: reliability, security, clean code, and clear documentation. Strengths: • Full-stack web development (HTML, CSS, JavaScript, React, Angular, Vue.js, Next.js, Node.js, PHP, Python) • E-commerce & CMS platforms (Shopify, WooCommerce, WordPress, Magento) • Cloud architecture & serverless (AWS, AWS Lambda, Docker, Kubernetes) • Infrastructure & operations (Linux/Windows, virtualization, networking) • Database design & administration (PostgreSQL, MySQL, MongoDB, MariaDB) • Security hardening, identity & access, monitoring/observability • Automation & DevOps (CI/CD, Ansible, IaC, config management) • API design & integration (REST, Web Services, third-party APIs) • Data pipelines, Zoho/ERP integrations, BI dashboards • Responsive design, website optimization, and SEO best practices • Concise runbooks, risk-aware planning, and stakeholder-friendly communication Certifications: CompTIA Security+, Microsoft MCSE/MCSA/MCITP Languages: English (C2), German (C1), native Romanian Location: Germany • NDA-friendly • Reliable and responsive less -
Hire elvirt
Senior full-stack dev (React Native/Flutter + Shopify + AI). I build cross-platform mobile apps, custom Shopify solutions, and embed intelligent features like recommendations, search, and chatbots. Strong communicator, accurate estimator, and team mentor. Let's build something great.Senior full-stack dev (React Native/Flutter + Shopify + AI). I build cross-platform mobile apps, custom Shopify solutions, and embed intelligent features like recommendations, search, and chatbots. Strong communicator, accurate estimator, and team mentor. Let's build something great. less -
Hire mariusd26
🟢Available Now🟢 I am a Senior AI Full-Stack Developer specializing in building intelligent SaaS platforms, AI-powered applications, automation systems, and scalable web solutions. I have extensive experience designing and developing production-ready AI systems using Large Language Models (LLMs), Retrieval-Augmented...🟢Available Now🟢 I am a Senior AI Full-Stack Developer specializing in building intelligent SaaS platforms, AI-powered applications, automation systems, and scalable web solutions. I have extensive experience designing and developing production-ready AI systems using Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), AI Agents, and modern full-stack technologies. 🚀 I help startups and businesses transform ideas into reliable AI products by combining advanced AI engineering with strong full-stack development expertise. My core expertise includes: 🤖 AI & Machine Learning Engineering OpenAI API, GPT models, Claude, Gemini, Llama-based solutions LLM application development Retrieval-Augmented Generation (RAG) systems AI Agents and autonomous workflows LangChain, LangGraph, LlamaIndex Vector databases including Pinecone, Weaviate, Chroma, FAISS Prompt engineering and AI workflow optimization AI automation and intelligent assistants ⚡ Full-Stack Development Frontend: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS Backend: Python, FastAPI, Django, Node.js, Express.js API design, microservices architecture, third-party integrations Database architecture with PostgreSQL, MongoDB, Redis Real-time applications using WebSockets and event-driven systems ☁️ Cloud & Infrastructure AWS, Azure, Google Cloud Platform Docker, Kubernetes, CI/CD pipelines Serverless architecture and scalable cloud deployments Security best practices, authentication, authorization, and data protection I focus not only on writing code but also on creating business-focused solutions that improve efficiency, reduce operational costs, automate repetitive processes, and deliver exceptional user experiences. I have worked closely with founders, product managers, designers, and engineering teams in Agile environments, helping define product strategy, architect scalable systems, mentor developers, and deliver high-quality software from MVP stage to enterprise-level platforms. My approach is based on clean architecture, maintainable code, strong performance optimization, and long-term scalability. Whether you need an AI chatbot, enterprise knowledge assistant, AI SaaS platform, automation workflow, or a complete full-stack application, I can help turn your vision into a successful product. 💚Feel free to contact me anytime; I can respond promptly.💚 less -
Hire alvinm66
Turn Ideas into Scalable, High-Impact Software With 9+ years of hands-on freelancing experience, I build reliable, high-performance solutions across web, AI, automation, and cloud systems. I work across a wide stack, which means I can jump into almost any project and deliver fast, production-ready results. Core Tech...Turn Ideas into Scalable, High-Impact Software With 9+ years of hands-on freelancing experience, I build reliable, high-performance solutions across web, AI, automation, and cloud systems. I work across a wide stack, which means I can jump into almost any project and deliver fast, production-ready results. Core Tech Stack Languages: JavaScript (TypeScript), Python, PHP, Java, C#, Ruby, Go Frontend: HTML5, CSS3, React, Next.js, Angular, Vue, Nuxt, Tailwind Backend: Node.js, Express.js, NestJS, Django, Flask, FastAPI, Laravel, Spring Boot, Ruby on Rails Databases: PostgreSQL, MySQL, MongoDB, Redis, Firebase, Elasticsearch DevOps & Cloud: AWS, GCP, Azure, Docker, Kubernetes, CI/CD (GitHub Actions, Jenkins, Travis CI), Vercel, Netlify, Heroku Other Expertise: REST & GraphQL APIs, Microservices, WebSockets, Serverless Architecture Specialized Areas Python Development: automation scripts, data processing, web scraping, AI/ML integrations, FastAPI/Django apps AI & Automation: RAG systems, chatbots, OpenAI integrations, workflow automation E-commerce & SaaS: scalable platforms, payment systems, subscriptions Crypto & Fintech: trading systems, dashboards, blockchain integrations CRM & Business Tools: custom dashboards, internal tools, workflow systems What You Get Clean, scalable, production-ready code Fast turnaround and clear communication Performance-focused builds (optimized APIs, fast load times) Reliable deployment pipelines and long-term maintainability Engineering Approach I follow best practices like Agile, TDD/BDD, and scalable architecture patterns. My focus is always on building systems that are not just functional—but efficient, maintainable, and ready to grow. less -
Hire saeedme26
Hello, I am Muhammad Saeed. Welcome ! Here's what I can build for you: ✔ Full-Stack Development 👍 CRM Front-end & Back-end project layout design and development 👍 Payment gateway experience for Stripe, Google pay, Paypal, Apple Pay and etc .. 👍 Storefront Project development using third-party API such as shopify and...Hello, I am Muhammad Saeed. Welcome ! Here's what I can build for you: ✔ Full-Stack Development 👍 CRM Front-end & Back-end project layout design and development 👍 Payment gateway experience for Stripe, Google pay, Paypal, Apple Pay and etc .. 👍 Storefront Project development using third-party API such as shopify and etc .. 👍 Landing Page development required dynamic animation and transition for several elements using modern JS frameworks and several additional libraries such as GSAP and etc .. ✔ CMS Development 👍 Development Full-stack site with WordPress. 👍 Shopify theme customization(Horizon, Dawn) for smooth luxury and beaty Shops 👍 Shopify CRO(conversion rate optimization) improvement. 👍 WordPress plugin customization for pixel-perfect design and performance optimization. 👍 Develop variant Landing pages and Portfolios with WordPress and Webflow, etc... ✔ CRM Automation Development 👍 Development Booking site use Custom Modules 👍 Connecting CRM with e-commerce 👍 Implement Automated Responses system with openAI 👍 Implement automated business processes using WhatsApp and OpenA 👍 Implement Shopify customer CRM Automation ✔ AI Model TTS and Integration 👍 Development health business coaching platform use Integration TTS model. less -
Hire tobiask5
With over 8 years of hands-on experience in software development, I am a seasoned professional with a strong background in full-stack. Front-End Technologies: React.js, HTML5, CSS3, React Native, Flutter, WordPress Back-End Technologies: Node.js, Laravel, Django, FastAPI, Express.js, Convex, Sanity Database...With over 8 years of hands-on experience in software development, I am a seasoned professional with a strong background in full-stack. Front-End Technologies: React.js, HTML5, CSS3, React Native, Flutter, WordPress Back-End Technologies: Node.js, Laravel, Django, FastAPI, Express.js, Convex, Sanity Database Management: SQL, NoSQL, PostgreSQL, MongoDB DevOps & Tools: D AWS, Azure, Stripe What sets me apart is my problem-solving prowess and a proactive, can-do attitude. I thrive in challenging environments where I can bring fresh perspectives and develop cutting-edge solutions. Whether you need a robust application, an intuitive user interface, or seamless system integration, I am committed to delivering exceptional results tailored to your needs. less -
Hire jone72
I'm a full-stack and mobile developer with 7+ years of hands-on experience building production apps and automated business systems for clients across web, mobile, and CRM platforms. Mobile Development Flutter/Dart is my core specialty — I build cross-platform iOS/Android apps from architecture through App Store/Play...I'm a full-stack and mobile developer with 7+ years of hands-on experience building production apps and automated business systems for clients across web, mobile, and CRM platforms. Mobile Development Flutter/Dart is my core specialty — I build cross-platform iOS/Android apps from architecture through App Store/Play Store deployment, with an eye toward clean state management and maintainable codebases. Full-Stack Web Development On the web side, I work primarily with Next.js on the frontend and Django on the backend, using Supabase for auth, database, and storage. I've built and deployed full platforms this way — most recently a fulfilment/logistics management system covering order tracking, admin dashboards, and client-facing portals — and I deploy and manage infrastructure on AWS EC2. AI & Automation I integrate AI directly into products and workflows using the Gemini and Anthropic APIs, and build automation pipelines with tools like n8n, Zapier, and Make to connect CRMs, forms, and business systems — reducing manual work for ops and sales teams. GoHighLevel (GHL) I design and build CRM, membership, and certification platforms on GoHighLevel — including funnel/pipeline architecture, automation workflows, and membership-gated content — for coaching and certification businesses. AutoCAD I also bring AutoCAD skills to the table for clients who need technical drafting or design documentation alongside their software work. I care about shipping things that actually work in production, communicating clearly throughout a project, and building systems clients can maintain long after I hand them off. Whether you need a mobile app built from scratch, a web platform stitched together, or your business processes automated end-to-end, I'd be glad to help. less -
Hire enzof26
I'm a full-stack and mobile developer with 7+ years of hands-on experience building production apps and automated business systems for clients across web, mobile, and CRM platforms. Mobile Development Flutter/Dart is my core specialty — I build cross-platform iOS/Android apps from architecture through App Store/Play...I'm a full-stack and mobile developer with 7+ years of hands-on experience building production apps and automated business systems for clients across web, mobile, and CRM platforms. Mobile Development Flutter/Dart is my core specialty — I build cross-platform iOS/Android apps from architecture through App Store/Play Store deployment, with an eye toward clean state management and maintainable codebases. Full-Stack Web Development On the web side, I work primarily with Next.js on the frontend and Django on the backend, using Supabase for auth, database, and storage. I've built and deployed full platforms this way — most recently a fulfilment/logistics management system covering order tracking, admin dashboards, and client-facing portals — and I deploy and manage infrastructure on AWS EC2. AI & Automation I integrate AI directly into products and workflows using the Gemini and Anthropic APIs, and build automation pipelines with tools like n8n, Zapier, and Make to connect CRMs, forms, and business systems — reducing manual work for ops and sales teams. GoHighLevel (GHL) I design and build CRM, membership, and certification platforms on GoHighLevel — including funnel/pipeline architecture, automation workflows, and membership-gated content — for coaching and certification businesses. AutoCAD I also bring AutoCAD skills to the table for clients who need technical drafting or design documentation alongside their software work. I care about shipping things that actually work in production, communicating clearly throughout a project, and building systems clients can maintain long after I hand them off. Whether you need a mobile app built from scratch, a web platform stitched together, or your business processes automated end-to-end, I'd be glad to help. less -
Hire widesolutionsw
widesolutionsw widesolutionsw
$14 USD / hour
Top 1% PhD & Academic Writer | Thesis & ResearchGermany✨ 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐡𝐃 𝐖𝐫𝐢𝐭𝐞𝐫 & 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 | 𝟒.𝟗⭐ 𝐑𝐚𝐭𝐢𝐧𝐠 ✨ 𝟖𝟎𝟎+ 𝐒𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 | 𝟗𝟗% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 ✨ 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐛𝐲 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫𝐬 𝐢𝐧 𝟒𝟎+ 𝐂𝐨𝐮𝐧𝐭𝐫𝐢𝐞𝐬 ✨ 𝐓𝐮𝐫𝐧𝐢𝐭𝐢𝐧-𝐅𝐫𝐢𝐞𝐧𝐝𝐥𝐲 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬 | 𝐀𝐈-𝐅𝐫𝐞𝐞 | 𝐎𝐧-𝐓𝐢𝐦𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲 ✨ 𝐅𝐚𝐬𝐭 𝐓𝐮𝐫𝐧𝐚𝐫𝐨𝐮𝐧𝐝 | 𝐔𝐫𝐠𝐞𝐧𝐭 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 When your dissertation, thesis, or research paper needs to meet your...✨ 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐡𝐃 𝐖𝐫𝐢𝐭𝐞𝐫 & 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 | 𝟒.𝟗⭐ 𝐑𝐚𝐭𝐢𝐧𝐠 ✨ 𝟖𝟎𝟎+ 𝐒𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 | 𝟗𝟗% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 ✨ 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐛𝐲 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫𝐬 𝐢𝐧 𝟒𝟎+ 𝐂𝐨𝐮𝐧𝐭𝐫𝐢𝐞𝐬 ✨ 𝐓𝐮𝐫𝐧𝐢𝐭𝐢𝐧-𝐅𝐫𝐢𝐞𝐧𝐝𝐥𝐲 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬 | 𝐀𝐈-𝐅𝐫𝐞𝐞 | 𝐎𝐧-𝐓𝐢𝐦𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲 ✨ 𝐅𝐚𝐬𝐭 𝐓𝐮𝐫𝐧𝐚𝐫𝐨𝐮𝐧𝐝 | 𝐔𝐫𝐠𝐞𝐧𝐭 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐥𝐞 When your dissertation, thesis, or research paper needs to meet your university or journal's academic standards, expert guidance can make all the difference. I provide research coaching, thesis & dissertation mentoring, academic editing and structured writing support to help researchers, and professionals develop clear & well organized work. 𝐖𝐇𝐀𝐓 𝐒𝐄𝐓𝐒 𝐌𝐘 𝐒𝐔𝐏𝐏𝐎𝐑𝐓 𝐀𝐏𝐀𝐑𝐓 • Academic writing, proofreading & structural review • Research writing, thesis & dissertation completion • Research methodology & literature review writing • Academic writing support, clarity, structure & argument development • Guidance using peer-reviewed sources (Google Scholar, PubMed, JSTOR & more) • Citation & referencing support (APA, MLA, Harvard, Chicago, IEEE & OSCOLA) • Originality review, plagiarism reduction & Turnitin-friendly practices • AI content refinement & humanization • Revisions & ongoing academic support • Fast turnaround, including urgent requests where feasible 𝐒𝐏𝐄𝐂𝐈𝐀𝐋𝐈𝐙𝐄 𝐈𝐍 ► Dissertation & Thesis Research planning, chapter reviews, methodology guidance, academic editing, formatting, and supervisor feedback preparation. ► Research Papers & Journal Manuscripts Academic editing, manuscript review, editing, publication guidance, publication guidance, reviewer response assistance, and journal writing. ► Literature Reviews Support for systematic, narrative, and scoping reviews, including search strategy guidance, critical analysis, thematic synthesis, and academic writing. ► Essays & Coursework Tutoring Academic writing, research guidance, proofreading, editing, formatting, referencing, and constructive feedback for all levels. ► Research Proposals & Grant Applications Support with research design, problem statements, research questions, theoretical frameworks, methodology, proposal refinement, and grant application preparation. ► Academic Editing & Research Support Proofreading, language enhancement, originality improvement, AI content refinement, plagiarism reduction support, Turnitin-friendly practices, and referencing in APA, MLA, Harvard, Chicago, IEEE and OSCOLA. 𝐒𝐔𝐁𝐉𝐄𝐂𝐓𝐒 Business | Management | Marketing | Economics | Finance | HRM Nursing | Healthcare | Public Health | Medicine | Pharmacology Law | Criminology | International Relations | Political Science Psychology | Sociology | Education | Social Work Engineering | Computer Science | IT | Data Science History | Literature | Philosophy less -
Hire alis0623
I am an Android developer specializing in Kotlin and modern mobile applications. I build fast, reliable, and user-friendly Android apps, from MVPs to complete solutions.I am an Android developer specializing in Kotlin and modern mobile applications. I build fast, reliable, and user-friendly Android apps, from MVPs to complete solutions. less
