I am an IT person based in Tangerang, Indonesia. I provide website development services for clients all over the world using Wordpress, PHP, Scriptcase, mySQL, PostgreSQL. Providing the best quality services is my passion.

⭐ Senior Full Stack Developer | 50+ Products Shipped ✉️ 𝗠𝗘𝗦𝗦𝗔𝗚𝗘 𝗠𝗘 I typically respond within 12 to 24 hours, and urgent projects can be prioritized. I lead a senior engineering team that builds, scales, and rescues complex web and mobile products. Whether you need a single Senior Full-Stack Engineer or a dedicated team that plugs in and ships from day one – we move fast and deliver production-grade results. Over 50+ completed projects, we've helped startups and scale-ups go from prototype to release, and stepped in as the core engineering team when products needed to grow. We work primarily with Node.js and Nest.js on the backend and React / Next.js on the frontend – the same stack that powers most modern, high-load SaaS platforms. 🎯 WHAT YOU GET WHEN YOU HIRE US – 100% completion rate – every project delivered, backed by a 100% Job Success Score across 6000+ hours on Upwork – Fast start & team scaling – we onboard in days, not weeks, and scale the team up or down as your roadmap demands – AI-accelerated delivery – we integrate AI tools into our development process to improve code quality and ship faster – Full cycle – from prototyping and UX to architecture, development, and release 🏆 RESULTS "I highly recommend Pavlo - he will be my goto next time for any work like this. He understood exactly what I needed and was really fast to act. One of the best freelancers Ive used on Upwork!" – Lauren B., Client "Pavlo and his team were highly responsive, professional, and extremely efficient in diagnosing issues and identifying the root causes of several problems in the codebase. Their debugging process was structured and precise, and their recommendations during the code review were very valuable in improving the overall stability, performance, and maintainability of our system." – Client, Product Manager, SaaS Platform SELECTED PROJECTS – CaJu AI – an enterprise AI platform with real-time AI workflows, scalable Node.js backend services, and React-based interfaces for compliance-focused customer support automation. – CookieFirst – a large SaaS platform where we became the core engineering team, scaling the product, expanding functionality, and improving performance. – Ragusa Express – a booking platform with online reservations, payments, backend modernization, and React frontend improvements. TECHNICAL STACK Backend: Node.js, Nest.js, Express.js, Laravel, Symfony (TypeScript, PHP, Python) Frontend: React, Next.js, Vue.js, Tailwind CSS, SCSS/Sass Mobile: React Native, Java, Kotlin, Swift Cloud & Tools: AWS, Docker, NGINX, Supabase, PostgreSQL, MongoDB, DevOps, Figma If you're looking for a reliable Senior Full Stack partner who works in Node.js, Nest.js, and React and can take ownership from idea to launch – send me a message and tell me about your project. ENGAGEMENT MODELS You can bring on a single Full Stack Developer for focused feature work, a dedicated Backend Developer to own your Node.js services, or a full pod combining Full Stack Developer and Backend Developer roles with a React specialist on top. Most clients start with one Full Stack Developer or one Backend Developer and scale up once trust is established – we've grown from a single Node.js Backend Developer to an eight-person team on more than one long-term engagement. WHY NODE.JS AND REACT We standardized on Node.js and React because they let a single Full Stack Developer move across the stack without context-switching, and they give a Backend Developer and a React engineer a shared language when APIs and UI need to evolve together. A Node.js Backend Developer on our team typically ships REST or GraphQL services that a React frontend consumes within the same sprint, which is the main reason clients hire a Full Stack Developer from us instead of stitching together separate backend and frontend contractors. A FEW THINGS CLIENTS ASK BEFORE HIRING Can I hire just one Backend Developer? Yes – many engagements start with a single Backend Developer handling Node.js architecture while we hold a Full Stack Developer in reserve for later. Do you offer a trial period? Yes, a short paid trial with one Full Stack Developer or Backend Developer is the easiest way to check fit before scaling the team. Can you work backend-only? Yes – some clients only need a Node.js Backend Developer, others need a full Full Stack Developer team covering React end to end. Whether you need a Full Stack Developer or a Backend Developer, message me with your stack and timeline and I'll match you with the right Full Stack Developer from the team within 24–48 hours. Best regards, Pavlo Jedi at Red Carlos Solutions

+10 Years of Work Experience as Programmer & Web Designing & Development • Development in (.NET, ASP.NET, C #, python,C ++) • Excel : Automating - Programming • Data entry (images to word,PDF to Excel....) • Web Designing & Development in PHP, HTML5, CSS3, PHOTOSHOP • Management Database (SQL Server, Oracle, MySQL, Access) • Analysis and Design (UML) • Power BI • Writing unit tests. • Bug fixes. • Customer Support. • french to arabic translation • arabic to french translation • Balsamiq UI design

I'm an actuary and Data Analyst with over 5 years of experience in quantitative risk assessment, statistical modeling, and financial analysis. I am an expert in : ☑️ Programming Languages : SAS, Python, R ☑️ Data Visualization & BI : Power BI, Tableau, Excel (VBA, Macros) ☑️ Statistical & Econometric Software : SPSS, SPSS Modeler, STATA, EViews, Minitab I can do any job related to: ☑️ Actuarial Science: Risk modeling, loss reserving, pricing models, and solvency analysis. ☑️ Data Analysis & Science: Advanced statistical analysis, predictive modeling, and data mining to uncover trends and inform strategy. ☑️ Financial Market Analysis: Equities, indices, currencies, and cryptocurrencies for investment and risk management. ☑️ Statistical Modeling & Data Mining: Regression Analysis, Multivariate Analysis (PCA, MCA, Cluster Analysis, ANOVA, ANCOVA...) ☑️ Econometric Analysis: Panel Data (Fixed/Random Effects), Time Series Analysis (ARIMA, VAR, ARDL, VECM, GARCH models.) ☑️ Economic Research & Modeling: Microeconomic and macroeconomic analysis, Development of models for forecasting. ☑️ Education & Tutoring: Instruction in Actuarial Science, Statistics, Probability, Econometrics, and data programming. I am available for consultations, project work and research collaborations...

Most AI projects fail in production — not because the model is wrong, but because the surrounding system isn't built to handle it. I fix that. I build and ship production-grade AI systems: LLM-powered agents, RAG pipelines, and full-stack platforms that enterprises actually use. My background is 20+ years of corporate engineering: healthcare, legal, fintech, SaaS — where systems have to be secure, auditable, and reliable from day one, not eventually. I'm one of Upwork's Expert-Vetted engineers, a designation earned through manual technical review that places me in the top 1% of the platform. I lead a tight senior team across AI/ML, full-stack, and cloud, which means you get my direct involvement on architecture and critical decisions, with the capacity to move faster than a solo hire ever could. 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝: → 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 & 𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 — LLM integrations with retrieval, evaluation harnesses, prompt architecture, guardrails, and agent workflows built on Azure OpenAI, Anthropic, and OpenAI → 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 — SaaS products, marketplaces, and internal tools in Next.js, Node.js, React Native, and Python — from schema to deployment → 𝐃𝐚𝐭𝐚 & 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 — APIs, pipelines, event systems, Postgres/MongoDB/Redis, Elasticsearch, Kafka — designed for performance and cost governance → 𝐂𝐥𝐨𝐮𝐝 & 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 — AWS, Azure, GCP; Docker/Kubernetes; Terraform; SOC 2, HIPAA, and GDPR-aligned architecture with SSO, RBAC, and audit logging 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐜𝐨𝐦𝐞 𝐛𝐚𝐜𝐤 𝐛𝐞𝐜𝐚𝐮𝐬𝐞 𝐭𝐡𝐞 𝐰𝐨𝐫𝐤 𝐡𝐨𝐥𝐝𝐬 𝐮𝐩. Clean architecture, measurable outcomes, full documentation, and handovers that don't leave your next engineer guessing. If you're building something that needs to work in the real world — not just demo — let's talk.

I’m a Certified ML/AI Data Scientist with 10+ years of experience building data science, machine learning, and analytics solutions that turn raw data into usable models, automated workflows, and decision-ready insight. My background spans predictive modeling, statistical analysis, data engineering, forecasting, automation, and business intelligence across modern analytics, data, and reporting platforms. I also hold the Microsoft Certified Power BI Data Analyst certification. I specialize in end-to-end analytical and AI workflows: collecting and structuring data, designing extraction and transformation pipelines, engineering features, validating assumptions, building predictive and diagnostic models, and translating results into practical business recommendations. A large part of my work involves writing complex queries, preparing data for modeling, identifying inconsistencies and gaps, automating data collection and cleanup, and developing analytical frameworks that support classification, forecasting, and decision support. Beyond model development, I work closely with stakeholders to turn loosely defined business questions into clear analytical approaches. That includes hypothesis development, research and test design, model validation, deep-dive analysis, and communicating findings in a way business leaders can act on. While I have strong BI and dashboarding experience, my core value is in combining ML/AI thinking, data engineering discipline, and analytics execution to build solutions that are technically sound, operationally useful, and built to scale.

I’m a Full-Stack Web Engineer - Microsoft .NET Technologies with over 15 years of experience designing and developing scalable, high-performing web applications using C#, .NET, .NET Core, and Blazor. My work bridges frontend and backend development, with a strong focus on cloud integration, microservices architecture, and building secure, maintainable, and future-ready digital solutions. I’ve successfully delivered solutions across diverse industries—including logistics, e-commerce, real estate, education, and staffing—always with an emphasis on clean code, performance, and reliability. ⚙️ Core Expertise: Languages: C#, JavaScript, jQuery, HTML, CSS, etc. Frameworks: .NET, .NET Core, Blazor, etc. Cloud Platforms: Microsoft Azure, AWS, etc. Databases: MySQL, MS SQL Server, PostgreSQL, MongoDB (NoSQL), etc. I thrive in agile, test-driven environments and enjoy solving complex technical challenges that push boundaries and inspire innovation. My approach blends deep technical expertise with a strong sense of ownership and collaboration. Recognized for my problem-solving mindset, adaptability, and positive attitude, I’m passionate about creating solutions that not only meet business needs but also elevate user experience and project efficiency. I’m always open to connecting with like-minded professionals, exploring collaborations, and contributing to projects that make a real impact through technology. Let’s connect and build something exceptional together. 🚀 — Abhishek Pujara

BI & AI Engineer | Top 1% Tableau Specialist | I build the dashboards that show you what's happening AND the AI systems that act on it — Tableau, Power BI, Python, LLM/RAG apps, and AI agents for growing companies and Fortune 500 teams. With 7+ years and $1M+ in measurable client impact, I lead a team that delivers two connected things most freelancers can't combine: enterprise-grade analytics and production AI deployment. What I deliver: Analytics & BI — Tableau and Power BI dashboards, data modeling, ETL, SQL, KPI/rate-card and FinOps reporting AI & automation — LLM/RAG applications, AI chat assistants, AI agents, workflow automation, and full-stack AI deployment Data engineering — pipelines, multi-environment data integration, database architecture and optimization Selected clients: Johnson & Johnson, Advanced Energy, Dura Power, Fruit Street, Flamingo Estate, Daymon, Boaz Bikes — across healthcare, finance, retail, technology, and consumer goods. Why clients keep me: 100% Job Success, Top Rated Plus, and an in-house team of AI developers, so I can scale from a single dashboard to a full BI-plus-AI build without you managing multiple vendors. Tools: Tableau, Power BI, Python, SQL, LLMs (OpenAI/Anthropic), LangChain, vector databases, n8n/Make, Django. Let's turn your data into dashboards that inform — and AI that acts.

If your team is still pulling monthly reports manually, copy-pasting from three systems, and second-guessing the numbers — that's the exact problem I fix. I design end-to-end Business Intelligence solutions that can convert fragmented data into trusted, automated reports — built for executives, analysts, and operations teams. With 8+ years delivering BI systems across Healthcare, Pharma, Hospitality, Marketing, F&B, Retail & E-commerce, I don't just build dashboards — I build decision-making infrastructure. Microsoft Power BI, Tableau, Excel & Rstudio, Looker & Data Studio — Executive dashboards, KPI scorecards, operational reports, drilldowns, Row-Level Security (RLS), performance-tuned semantic models, Advanced formulas (XLOOKUP, Index/Match, Pivot Tables), financial projections, budgeting models, dynamic reports, Macro automation ETL & Data Engineering — SQL, Power Query transformations, Python, API integrations Industry Expertise: Healthcare · Pharma · Hospitality · Food & Beverage · Retail · E-commerce· Marketing · Education · Finance I know which KPIs actually move the needle in your industry — and I build around them. Technical Stack: Power BI · DAX · Power Query (M) · Tableau · SQL · Python · Excel · Azure · Microsoft Fabric . Looker Studio · R Studio · SPSS · API Integration My Process Discover — I audit your current reports, identify what's being ignored, and find where manual work is costing your team hours each week. Model — Build clean, scalable data models with a single source of truth Visualize — Design professional, interactive dashboards tailored to your audience Automate — Eliminate manual steps with scheduled refresh and workflow automation Handover — Train your team and document everything Available for: → Power BI dashboard creation & redesign → Tableau dashboard development → Monthly reporting automation → Ad-hoc analytics & KPI development → Excel dashboard & financial modeling → Data cleaning, transformation & ETL pipelines → Healthcare & Pharma data analytics → Marketing analytics & campaign reporting Let’s unlock the hidden value in your data, contact me today!

𝗪𝗵𝗲𝗻 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝗿𝗼𝗮𝗱𝗺𝗮𝗽 𝗰𝗮𝗻'𝘁 𝗮𝗳𝗳𝗼𝗿𝗱 𝗱𝗲𝗹𝗮𝘆𝘀 𝗮𝗻𝗱 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆, 𝘀𝗰𝗮𝗹𝗲, 𝗮𝗻𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗺𝗮𝘁𝘁𝗲𝗿. 𝗜'𝗺 𝘁𝗵𝗲 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝗳𝗼𝘂𝗻𝗱𝗲𝗿𝘀 𝗮𝗻𝗱 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗹𝗲𝗮𝗱𝗲𝗿𝘀 𝗯𝗿𝗶𝗻𝗴 𝗶𝗻. I'm a Full Stack Developer and Enterprise SaaS Architect with 15+ years of experience building production-grade platforms across healthcare, finance, and B2B SaaS. I specialize in .NET Core, ASPNETZero, ABPio, Angular, React, and Azure and I architect multi-tenant SaaS systems that grow with your business, not against it. 𝗢𝗻𝗲 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗜 𝗵𝗲𝗹𝗽𝗲𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 𝗻𝗼𝘄 𝗽𝗼𝘄𝗲𝗿𝘀 𝗮 𝗰𝗼𝗺𝗽𝗮𝗻𝘆 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗻𝗴 $𝟮𝟬𝗠+ 𝗶𝗻 𝗮𝗻𝗻𝘂𝗮𝗹 𝗿𝗲𝘃𝗲𝗻𝘂𝗲. ────────────────────────────── 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 ────────────────────────────── ► 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗦𝗮𝗮𝗦 & 𝗛𝗜𝗣𝗔𝗔-𝗙𝗿𝗶𝗲𝗻𝗱𝗹𝘆 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 Secure, compliant workflows for clinical, operational, and patient-facing systems. I deliver healthcare software with the architecture, audit trails, and role-based access control that regulated industries demand. ► 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗠𝘂𝗹𝘁𝗶-𝗧𝗲𝗻𝗮𝗻𝘁 𝗦𝗮𝗮𝗦 I use proven SaaS architecture patterns including ASPNET Zero and ABPio to accelerate delivery without sacrificing quality. Tenant isolation, subscription billing, feature flags, and modular architecture built in from day one. ► 𝗔𝗜-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 I integrate OpenAI, Azure OpenAI, Claude, and Ollama into enterprise workflows from intelligent document processing and AI agents to semantic search and GPT-assisted decision tools. Python/FastAPI AI backends that connect cleanly to .NET frontends. ► 𝗟𝗲𝗴𝗮𝗰𝘆 𝗦𝘆𝘀𝘁𝗲𝗺 𝗠𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻 If your platform is built on aging .NET Framework, WebForms, or monolithic architecture. I migrate it incrementally and safely to .NET 9, microservices, and modern Azure infrastructure. No big-bang rewrites, no operational risk. ────────────────────────────── 𝗧𝗘𝗖𝗛𝗡𝗜𝗖𝗔𝗟 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 ────────────────────────────── 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: C# · .NET 9 / .NET Core · ASP.NET Core · ASP.NET Zero · ABP · FastAPI · Microservices · REST & GraphQL APIs 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Angular · React · Nextjs · TypeScript 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Azure · Azure DevOps · CI/CD Pipelines · Docker · Azure Service Bus · Azure Functions 𝗔𝗜 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Azure OpenAI · OpenAI API · Claude API · Ollama · AI Agents · LangChain 𝗗𝗮𝘁𝗮: SQL Server · PostgreSQL · Entity Framework Core · Redis ────────────────────────────── 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 ────────────────────────────── Healthcare · SaaS · Enterprise Software · FinTech · Logistics · Insurance ────────────────────────────── 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘 ────────────────────────────── ✔ 𝗟𝗼𝗻𝗴-𝘁𝗲𝗿𝗺 𝘁𝗵𝗶𝗻𝗸𝗶𝗻𝗴 — I focus on maintainability and scalability, not just shipping features ✔ 𝗙𝗮𝘀𝘁𝗲𝗿 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆 — I leverage reusable, battle-tested SaaS foundations to accelerate timelines ✔ 𝗖𝗹𝗲𝗮𝗿 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 — you'll always know where the project stands ✔ 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 𝗺𝗶𝗻𝗱𝘀𝗲𝘁 — architecture, security, scale, and cost efficiency from the start ✔ 𝗦𝗲𝗻𝗶𝗼𝗿 𝗶𝗻𝗱𝗶𝘃𝗶𝗱𝘂𝗮𝗹 𝗰𝗼𝗻𝘁𝗿𝗶𝗯𝘂𝘁𝗼𝗿 — you get my expertise directly, not delegated to a junior ────────────────────────────── If you're building a healthcare platform, modernizing a legacy system, scaling a SaaS product, or embedding AI into your enterprise workflows: 𝗹𝗲𝘁'𝘀 𝘁𝗮𝗹𝗸. Send me a message with a brief description of your project and I'll respond within 24 hours.