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I have over 15 years of software development experience. Over the course of my experience I have developed solutions using various of languages on Windows, Linux, and MacOS. I have built solutions from scratch and modified open source software to meet client needs. If you are looking for a software developer that can quickly turn your requirements into a working software solution, I am your developer. I stand behind my work 100%. The job is not done until my clients are satisfied with the solution they receive. In addition I am a tinkerer. I have developed solutions on Arduino, Particle.io, Raspberry Pi, and the ATMega series of micro controllers. I enjoy developing solutions that can control various hardware devices Skills ------- Languages: C/C++, Python (2.x / 3.x), C#, SQL, Bash, Java IDEs: Visual Studio, Atmel Studio, LabWindows/CVI, Eclipse, ViM (gdb) OSs: Windows, Linux, MacOS Other: Wix Toolset, RESTful API Certifications: CSSLP What I can do for you --------------------------- Desktop Software: I can develop command line and GUI utilities to perform system monitoring, generate documents and many other tasks. Middleware: I can create a middleware layer for hardware components to help mitigate the risk of hardware components becoming obsolete. Drivers: I have developed drivers to simplify the integration of hardware components. Firmware: I have developed firmware solutions to read and control a number of hardware components.

Experienced hardware software and systems engineer with experience with enterprise IT sector and small and medium businesses. Linux SME, skilled Java application developer, mostly backend, some frontend. Linux and AIX Afficianado. LunarVim, Bash/KSH-93 NetApp Basics... MSFT Azure, IBM Dev EDA, Simulation Process Schedulers like SLURM + LSF + Others. Ansys, Hw + Sw + &c. Can write shell scripts for various tasks, service scripts, package RPM's and other distribution specific unix and linux packages, program in python, perl, and php (and several other languages)

I’m a seasoned software engineer with 10+ years of experience in building Spring Boot microservices and Angular-based micro frontends. I focus on creating scalable, high-performance applications while ensuring seamless integration with DevOps pipelines using GitLab, Jenkins, Docker, OpenShift, and Harness. My Expertise Includes: - Backend Development: Java/Kotlin, Spring Boot, REST APIs, Kafka for real-time data processing. - Frontend Development: Angular, TypeScript, HTML, and CSS for modular, responsive UIs. - Database Management: PostgreSQL, Oracle, Cassandra, and DynamoDB—optimizing data flow and reliability. - Testing & Code Quality: JUnit, Mockito, and Testcontainers, achieving 90%+ SonarQube coverage. - CI/CD & Infrastructure: Automating deployments and infrastructure scaling with cutting-edge DevOps tools.

✅ I perfectly realize my clients' visions. 🔝 As a talent equipped with top-tier skills and 🎩outstanding business acumen, I turn clients' visions into success. Poised to become a Software Engineer/Applications Developer in the company specializing in JAVA/J2EE(Full Stack or Backend). A Highly Talented Professional with over 14 years of experiences(12 years in Java/J2EE and 2 years in .NET). A Senior Software Engineer with some Lead Experiences in the domain of Finance, Telecommunications, State Jobs, etc. Summary of Qualifications: • HTML, HTML 5, CSS, CSS 3, JavaScript, jQuery, Ajax, XML, XSLT, Json, Dojo, Angular, Bootstrap, • React/React JS. • 14 years of solid experiences in Web Applications Technologies • 12 years of solid experiences in Core Java • 12 years of solid experiences in Java EE Technologies (STRUTS, SPRING, HIBERNATE, JSF, EJB, JPA, • EAD 4J/Jade) and spring boot Microservices • Experience in Shell Scripting and Perl Programming • Experience in JavaScript Frameworks like Angular/Angular JS, React/ReactJs and jQuery • Experience in Jenkins, Splunk • Experience in Windows, Linux, Unix and MacOS Operating Systems • Experience in Linux and Shell Scripting • Software Design and Architecting Skills • Experience JMS queue/topic, RabbitMQ and Kafka. • Strong experience of Analysis and Design of Databases (Entity Relationship Diagram) • Strong experience of Object-Oriented Analysis and Design (UML) • Strong experience in Agile Process Model • Repositories like TFS, RTC, git, unfuddle, SVN, bitbucket • Excellent verbal and written communication skills, with the ability to articulate complex ideas clearly and concisely to both technical and non-technical stakeholders. • Strong analytical and problem-solving abilities, with a focus on improving processes to accelerate delivery, foster innovation, reduce costs, and improve quality. • Japan Information Technology Standard Examination Certified Technical Skills: • View Technologies: Face lets, jsp, Angular(Typescript), React/ReactJs(JSX, Typescript), HTML, CSS, • Javascript, Bootstrap, etc • Object Relational Mapping (ORM): JPA and Hibernate • Programming Languages: Java, C#, Typescript, Groovy • Operating Systems: Linux, Windows, Unix, MacOS • Web Service: REST, SOAP, RESTful Microservices • Cloud Platforms: AWS, Windows Azure, PCF, GCP • Monitoring Tools: Dynatrace, Datadog, splunk, etc • Security: Spring Security, Certificates, SSL, LDAP • Batch Jobs: Spring Batch, Multithreading • Unit Testing Frameworks: Junit, Testng, PowerMock, Groovy Spock, Mockito, Jest, Vitest, etc • Application Servers: Glassfish, WebSphere and Tomcat • Integrated Development Environment (IDE): NetBeans, STS, RAD, RSA, intellij • Database Management Systems: MS SQL Server, DB2, Oracle, Mongo DB, Postgre SQL • CI/CD: jenkins, maven, gradle • Others: insomia, postman, jmeter, Docker, Kubernetes, swagger, RabbitMQ, Kafka, etc.

AI Agent Developer building Voice AI agents, AI chatbots, RAG pipelines, and AI automation using OpenAI API, Python, FastAPI, and n8n. I connect AI systems to CRMs, calling platforms, and knowledge bases to solve real business problems, not demos. Every project I've delivered carries a 5-star rating and a client endorsement. 📈 Selected projects ✅ AI fraud detection platform (Next.js, Stripe) cutting chargebacks by up to 98% using behavioral pattern recognition and machine learning instead of static rule engines, PCI DSS compliant ✅ Inbound and outbound Voice AI platform on Twilio, Retell AI, and ElevenLabs, cutting call handling time by 35% and improving customer satisfaction by 18% through live transcription and intelligent routing ✅ Multi-channel AI chatbot using OpenAI API, LangChain, and Pinecone, integrated with Bitrix24, Zoho, and Salesforce, lifting outreach efficiency by 60% through automated lead qualification and human handoff ✅ RAG-powered multilingual knowledge platform with vector database retrieval, cutting manual document search time and delivering low-hallucination answers across business knowledge bases ✅ n8n automation workflows connecting LLMs with CRMs, Zendesk, HubSpot, and internal systems, removing repetitive manual work from daily operations 🛠️ Built with: OpenAI API, RAG, Pinecone, n8n, Twilio, Retell AI, ElevenLabs, LangChain, FastAPI, Python, MongoDB, Next.js, React 💬 Tell me what you're building. I'll tell you honestly whether it needs a voice agent, a chat agent, or both.

Hi! I’m a senior full-stack engineer with 10+ years of experience building and launching high-quality web platforms—everything from early prototypes to production-ready systems. I specialize in turning complex ideas into scalable, polished products. What I bring to the table: 🛠 Frontend Expertise: TypeScript, React, Next.js, Vue, Tailwind, Material UI ⚙️ Backend Strength: Node.js, Python, Django, Postgres, Firebase 🧠 AI Capabilities: LLM integration (GPT-4, Claude, open source), RAG systems, real-time GenAI features, computer vision 🚀 Platform Engineering: Clean API design, devops, cloud deployment (AWS, GCP, Heroku), Docker, CI/CD 💡 Product Polish: UI/UX refinement, performance tuning, accessibility, responsive design I’ve delivered a lot of high-quality work for startups and established clients outside of Upwork, and now I’m refocusing here—so while my total earnings may look low at the moment, the depth and quality of my experience is anything but. I’m most excited by projects where I can own the build from start to finish—refining existing code, architecting scalable solutions, and shipping features that users actually love. Whether you need to get a prototype across the finish line or lay the foundation for something big, I can help. Let’s chat about how to bring your product to life—fast, clean, and built to last. My Portfolio --> zlsventures.com/portfolio