Rupak B.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

PIPING & MECHANICAL DESIGN ENGINEER | CAD & ENGINEERING TOOLS DEVELOPER 20+ Years of Industrial & International Experience I provide end-to-end Piping & Mechanical Design Engineering services and develop engineering calculation tools and CAD automation solutions for industrial and EPC projects worldwide, combining practical field experience with structured engineering methods and automation-driven engineering efficiency. ________________________________________ 🔹 Core Services 1. PIPING & MECHANICAL DESIGN ENGINEERING Process & Basic Engineering: PFD & P&ID Development • Fluid / Mass Balance Tables • Pipe Sizing & Hydraulic Calculations • Piping Class & PSM • Equipment Selection & Datasheets • Preliminary Plant Layout • Site Plan with TOP Detailed Engineering & Design: Line List • Valve Schedule • Instrument List • Piping & Equipment Layouts • Pipe Routing • Pipe Support Design • Insulation & Heat Tracing Design • Detailed Drawings • Bill of Materials (BOM) 3D Modeling & CAD Engineering: Piping Isometrics • Plant & Piping 3D Modeling • Machinery & Equipment 3D Modeling • CAD Drafting & Engineering Drawings Engineering Analysis: Fluid & Piping System Analysis • Hydraulic System Design • Mechanical Equipment & Machinery Analysis Technical Documentation: Engineering Standards & Specifications • Operation & Maintenance Manuals • Technical Reports • Engineering Guides & Tutorials ________________________________________ 2. ENGINEERING TOOLS & CAD AUTOMATION Engineering Calculation Tools: Pipe Bend & Dent Strain Analysis Tools • Pipeline Corrosion & ERF Assessment Tools • Custom Engineering Calculation Applications CAD Automation & Custom Utilities: On-Screen Auto Highlighter for Drawings & Schematics • Column / Post Base Plate Drawing Automation • AutoCAD Automation • Custom CAD Utilities Engineering Software Development: Advanced Excel Engineering Tools • AutoLISP • Python • C# Engineering Applications 📌 A dynamic list of developed tools and projects is available in my Project Catalog & Portfolio. ________________________________________ 🔹 Professional Summary Design Engineer with 20+ years of experience in piping and mechanical systems across: Steel Plants • Power Plants • Chemical Plants • Oil & Gas • Industrial Process Facilities Extensive exposure to systems involving: Water • Air • Gas • Steam • Acid • Fume • Hydraulic • Grease • Oil • Melting & Casting Processes Successfully served German, Austrian, Italian, and Japanese multinational companies, along with global freelance clients across America, Europe, Australia, and Asia. ________________________________________ 🔹 Project & Industry Experience • 12+ major industrial projects completed (Basic Engineering to BOM & Manufacturing Support) • Full-cycle exposure: Concept → Basic Engineering → Detail Engineering → Documentation • Strong application of international standards: ANSI • DIN • ISO • JIS • IS Industry sectors: • Melt Shops & Furnaces • Bloom, Billet & Slab Casters • Hot Strip Mills • Bar & Wire Rod Mills • Sheet Processing Lines ________________________________________ 🔹 International Exposure • Deputed to Italy (four assignments – average 3 months each) for piping and equipment basic design engineering • Three-month technical training in Germany covering international engineering standards and advanced CAD practices ________________________________________ 🔹 Clients & Companies Served Major Industrial Organizations: SMS SIEMAG • Siemens VAI • Danieli • Steel Plantech • Siemens • Dunlop • NALCO • CESC • IFB Consultants & EPC Companies: Uniseven • Quotient Engineering • Stewarts & Lloyds • Otto • ICI Additionally served international clients across America, Europe, Australia, and Asia through freelance platforms. ________________________________________ 🔹 Academic Qualifications • Postgraduate Diploma – Piping Design & Engineering • Diploma – Mechanical Engineering ________________________________________ 🔹 Technical Skills Design & CAD: 2D Drafting • 3D Modeling • Solid Modeling • Isometric Drawings • Exploded Views Simulation & Engineering Analysis: CFD • FEA • Thermal Analysis • Multiphysics Support Programming & Engineering Automation: AutoLISP • Python • C# • Engineering Tool Development • CAD Customization Tools & Platforms: AutoCAD • AutoCAD Plant 3D • Fusion 360 • EPANET • OpenModelica MS Office • Visio • Adobe Acrobat • Windows • DOS • Linux ________________________________________ 🔹 Core Expertise Piping Systems • Fluid Systems • Hydraulic Design • Process Engineering • Mechanical Systems • CAD Automation • Engineering Calculations • Technical Documentation • Project Engineering ________________________________________ 📌 Additional Information For detailed project examples, completed jobs, and specialized engineering tools, please refer to my Specialized Profile, Project Catalog, Portfolio, and Job History. ________________________________________