Hire the Best Functional Programmers

Hi, I’m a Senior WordPress Developer with 14+ years of experience specializing in Elementor, Divi, and WordPress Bug Fixing. I deliver fast, secure, and high-converting websites for businesses worldwide. I have built, redesigned, and fixed hundreds of WordPress websites, including WooCommerce stores, portfolio sites, blogs, and corporate websites. I work with all major page builders like Elementor, Divi, WPBakery, or any other you prefer. I also provide custom theme customization based on your specific needs, ensuring timely delivery at an affordable price. When I design websites, I make sure they are fast, secure, and error-free. 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿: 🔹 WordPress Website Design (Fast, Secure & Mobile-Friendly) 🔹 WordPress Elementor Pro, Divi, & WPBakery Specialist 🔹 Figma/PSD to WordPress Conversion 🔹 WordPress Maintenance & Bug Fixing 🔹 WordPress Multisite Setup & Management 🔹 WordPress Migration & Hosting Setup 🔹 WordPress Membership Sites 🔹 WordPress Malware Removal & Security Hardening 🔹 WooCommerce Store Design & Optimization Whether you need a brand-new website from scratch, cloning a competitor’s site, or improving your existing site’s design and security, I provide reliable solutions that exceed expectations. 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? ✅ 14+ years of hands-on WordPress experience ✅ Delivered 1500+ Website ✅ 100+ happy clients and 5-star reviews ✅ Skilled in design, security, and hosting. So you get everything in one place ✅ Fast response and clear communication ✅ Long-term support. Many clients work with me for years Here’s what one client said: "Of all the programmers I have worked with, Khokon is simply the best. I will work with no other. He does excellent work, is an absolute pleasure to work with, always available to discuss the work and deadlines. I look forward to hiring him again!" If you’re looking for a trustworthy WordPress expert to design, secure, fix, or optimize your website, let’s connect and start your project today.

⭐ 5 years building AI systems • 30+ projects • 20+ clients across US, UK, UAE, Australia & Europe I'm an AI Product Lead and Engineer who bridges the gap between business vision and technical execution. I don't just build. I own. From defining architecture and leading teams to stakeholder communication and compliance-aligned delivery, I operate as a senior member of your team, not a hired hand. If you need someone to take an AI product from idea to production and keep it running, I'm built for that. ⸻ 💼 What I Bring to Your Team ✅ End-to-end product ownership: requirements → architecture → delivery → iteration ✅ AI systems that are production-grade, monitored, compliant, and built to scale ✅ Team leadership and cross-functional coordination (engineers, PMs, stakeholders) ✅ Governance-aligned design: audit logging, traceability, access controls, compliance guardrails ✅ Clear communication with both technical teams and non-technical executives ⸻ 🔧 What I Build ✅ Agentic AI & Conversational Systems Multi-agent architectures (LangGraph, LangChain, RASA) with reasoning and memory Customer support bots, sales assistants, internal knowledge agents Voice AI (Retell, LiveKit, Vapi) and omnichannel deployment ✅ Full-Stack AI Applications Backend APIs: FastAPI, Django, async pipelines, microservices Frontend: React, Next.js for interfaces that make AI accessible RAG pipelines with vector DBs (FAISS, Chroma, PGVector) ✅ Production & Compliance Infrastructure Observability: OpenTelemetry, LangSmith, structured audit logging Security-first: access controls, guardrails, data traceability Docker, Kubernetes, CI/CD on AWS / GCP / Azure ⸻ 🤝 How We Work Together I'm best suited for engagements where you need: A contract-based product lead who operates like a senior team member Someone to build and own an AI product or platform long-term A technical bridge between your business goals and engineering execution Not a good fit if you need a one-off task completed quickly. I invest in understanding your product deeply and work best in ongoing, high-ownership relationships. ⸻ ✨ Why Me? I've led delivery of HIPAA-compliant healthcare AI, founded and ran my own AI consultancy (15+ projects), and operated as a senior lead across enterprise and startup environments. I understand what it takes to ship responsibly: on time, at scale, and with the governance your stakeholders expect. 📩 Tell me what you're building. I'll tell you honestly whether I'm the right fit and exactly how I'd approach it.

TLDR: Check reviews ! :) portfolio: bilalbelli.eu 👈 Why hiring me ? because i provide a high quality job and get the job done real quick ! I’m an experienced Software Engineer (with diploma) and Developer (not a vibe coder ! i understand and i can do everything) specializing in Python, Java, Javascript, Typescript, and modern Web technologies (Angular, Spring Boot, Node.js, Flask, Wordpress, Bootstrap, Next.js, Nuxt.js, Electron.js), and I also provide tutoring and mentoring in programming and computer science topics. I hold a strong Computer Science and Systems Engineering background, with solid experience in software development, backend & frontend engineering, system design, machine learning (AI, ML, DL, Agents) and applied problem-solving. I enjoy tackling non-standard and real-world problems, covering application design, algorithmic thinking, system architecture, and production-ready implementations, from initial analysis to clean, documented, and maintainable code. I regularly work on full-stack engineering problems, including: - Coding, - Documentation, - Manual Creation, - Scientific & Technical Writing, - Tutoring, I have hands-on experience with a wide range of technologies and tools, including Python, Java, C, JavaScript, TypeScript, HTML, CSS, SQL, and frameworks such as Spring Boot, Node.js, Flask, Electron, and Angular. I also work with relational databases (PostgreSQL, MySQL, SQL Server), and modern DevOps & infrastructure tools like Git, Docker, Jenkins, Ansible, Jira, as well as Linux environments and networking solutions (Nginx, HAProxy, DNS, virtualization). I’m comfortable learning and adapting to new technologies quickly, and my broad technical foundation allows me to switch tools and frameworks efficiently to best fit project requirements.

More than 11 years of working in various aspects of ERP, Retail, Accounting, and Financial Procedures. Flexible, trustworthy, proactive and results-oriented with solid accounting and computer skills. Acumatica ERP Functional Consultant • Conduct client’s business process review and system analysis to align client’s operation using ERP functionalities. • Recommends standard business practice and necessary automation to optimize operations • Prepare project documentation for a report, process and integration customizations. • Data build-up, Uploading , Configuration and Set-up and other technical function • Facilitates user training and support on how to use ERP software modules and vertical solutions. • Responsible for meeting directly with clients ERP – related needs and issues and provide the best possible solutions to enable collaborative working relationship with clients. • Support system maintenance on ERP software as well as assistance on new upgrades and testing. • Quality assurance testing of system development by programmers before actual deployment to clients. • Escalating bugs to product support for fixes and document resolution references. • Conduct status update meetings to stay informed. about the current state of the project, steering committee, project timeline, and project closeout. • Conducts Acumatica pre-sales product demonstration and facilitates POC. Acumatica Badges • Business Consultant • Inventory and Order Management • Project Accounting • Advanced CRM • Manufacturing • Field Service Business Consultant • Construction Pre-Sales Techniques • Pre-Sales Engineer EDUCATION: June 2018 – March 2012 University of Rizal System Bachelor of Science in Accountancy TRAINING ABROAD: Field Service Business Consultant March 2019 Jakarta, Indonesia

Most QA contractors show up, run some tests, and log tickets. I build the system that makes your whole team ship faster - and keeps it running long after the engagement ends. I've spent 8+ years embedded in product teams - SaaS startups, scale-ups, fintech, healthtech, AI-first companies. I know what breaks at 3am before a release, what developers actually need in a bug report, and how to build automation that survives a codebase rewrite. ISTQB certified. 100% JSS. 7,500+ hours billed on Upwork without a single failed contract. (✔️) Test automation - Playwright, Cypress, Selenium, REST Assured, k6 I build automation suites from scratch or layer them on top of existing code. Framework design, test architecture, CI/CD integration - the full picture, not just writing scripts. Every suite I deliver runs on every commit, gives your team fast feedback, and doesn't collapse the moment someone refactors a component. I've worked with GitHub Actions, GitLab CI, Jenkins, CircleCI. I write tests that are maintainable, not clever. (✔️) AI product QA - LLM testing, hallucination detection, prompt regression This is where most QA engineers hit a wall. Testing AI-powered products requires a completely different mindset - outputs are non-deterministic, edge cases are semantic, and traditional assertion logic breaks down fast. I've built QA pipelines for LLM-based features: output validation frameworks, hallucination detection heuristics, prompt regression suites that catch regressions across model versions, and end-to-end AI pipeline QA. If your product uses AI under the hood and you're not testing it systematically, you're shipping blind. (✔️) API & backend testing - REST, GraphQL, SOAP Full API test coverage: functional testing, contract testing, schema validation, error handling, edge cases, load and stress scenarios with k6. I test APIs as a first-class surface, not as an afterthought between UI tests. (✔️) Mobile QA - React Native, iOS, Android Real device testing and BrowserStack. I cover the full matrix - OS versions, screen sizes, network conditions, background/foreground behavior, push notifications, deep links. React Native is my primary mobile stack but I've tested native iOS and Android products as well. (✔️) Accessibility - WCAG 2.2, ADA compliance Accessibility audits built into the QA process from day one, not retrofitted before an App Store review or a legal notice. I test with screen readers, keyboard-only navigation, contrast analysis, and semantic markup review. I deliver remediation reports your dev team can act on directly. (✔️) Test documentation & strategy Test plans, test case design, traceability matrices, risk-based test strategy, coverage reports. I document QA processes so they outlive any single contractor - your team can pick up where I leave off without losing context. (✔️) Manual & exploratory QA Structured exploratory sessions, user flow testing, cross-browser and cross-device regression, edge case mapping, session-based test management. I don't just follow test cases - I think about how real users break things, and I document what I find in a way that's useful, not just a ticket dump. Results from recent work: - 30% reduction in post-release defects for an AI-powered SaaS platform after introducing structured QA process ownership and expanding automation coverage - 20% faster release cycles by shifting testing left and eliminating manual bottlenecks in the regression phase - 100% JSS maintained across 7,500+ hours billed across multiple long-term engagements How I work: Async-first, timezone-flexible, documentation-driven. I write bug reports developers can act on in minutes - reproduction steps, environment details, severity assessment, and root cause hypotheses when relevant. No ticket noise, no vague "it broke" reports. I integrate cleanly with whatever you use: Linear, Jira, GitHub Issues, Notion, Confluence. I show up to standups prepared, I flag risks early, and I don't disappear between check-ins. I'm available for ongoing retainers and fixed-scope projects. Greenfield automation builds, QA audits, AI testing strategy, mobile QA, accessibility reviews - if quality is the problem, let's figure out the right solution together.

I’ve successfully completed multiple projects on Upwork with 5-star ratings and positive client feedback. If you’re facing any kind of tech-related problem, I’m here to help. I specialize in backend development, frontend development, and database management. Over the years, I’ve built projects such as: ✅Enterprise Multi-Tenant SaaS POS Application ✅Expense Tracker ✅Food Delivery Web App ✅Smart Pharmacy Management System ✅Retail Billing Software ✅Trading Platform ✅Book Rental System ✅Hospital Management System Previously, I worked as a Junior Backend Developer, where I created REST APIs, fixed bugs, collaborated with frontend developers, and managed databases. Working remotely strengthened my communication skills and taught me how to coordinate effectively with distributed teams. Technical Skills ✅ Languages: Java, JavaScript, Python ✅ Frameworks: Spring Boot, Spring MVC, Hibernate, React, Tailwind CSS ✅ Web Services: RESTful APIs ✅ Databases: MySQL, PostgreSQL, MongoDB ✅ Tools: VS Code, IntelliJ, Eclipse, Postman, Git/GitHub ✅ Frontend: HTML5, CSS3, JavaScript ✅ Practices: Git-based version control, Agile methodology, automated testing What I Can Do for You ✅ Develop and maintain RESTful APIs with Java & Spring Boot ✅ Design scalable and efficient backend architectures ✅ Build dynamic, responsive web interfaces with React, Tailwind CSS, HTML, and JavaScript ✅ Integrate relational databases and ensure data integrity ✅ Debug and fix performance or functional issues across the stack ✅ Collaborate with frontend, backend, and mobile teams for end-to-end solutions ✅ Deploy applications and assist with basic DevOps tasks I believe in clear, friendly communication to keep projects running smoothly and ensure we’re always aligned. Let’s chat about your project and see how I can help bring it to life! “Any fool can write code that a computer can understand. Good programmers write code that humans can understand.” – Martin Fowler