Back to freelancer search

Sunday O.

Mechanical Engineering professional with Building Design Services, Brownfield Modifications

Port Harcourt, Nigeria

Global rank:

266,589 / 146,891

Skill pts: 0

2D/3D AutoCAD 3D Building Design AutoCAD Bluebeam Revu CSC Orion

Get a quote

About

I am a Mechanical/Piping Design Engineer with over 15 years of experience in piping design, CAD drafting, 3D plant modelling, and mechanical construction support across oil & gas, refinery, petrochemical, power, and industrial projects. I have strong practical experience in developing accurate 2D and 3D piping deliverables, including piping layouts, GA drawings, isometrics, P&IDs, fabrication drawings, MTOs/BOMs, weld mapping, and as-built documentation.

I am proficient in AutoCAD, AutoCAD Plant 3D, Navisworks, and Bluebeam Revu, with experience supporting brownfield modifications, piping tie-ins, site verification, fabrication, installation, and project execution. I am detail-oriented, adaptable, and committed to producing accurate engineering drawings while working effectively with multidisciplinary teams, clients, contractors, and site personnel.

My professional goal is to contribute my technical drafting, piping design, site engineering, and project execution experience to challenging engineering projects while continuously developing my expertise in modern plant design and engineering technologies.

Experience

Senior Mechanical Engineer Kinetic Electromechanic Nigeria Limited, Port Harcourt, Rivers State · Part-time Aug 2026 – Aug 2026 0 mos Indorama Interconnecting Piping Project, Port Harcourt, Rivers State • Prepare and review mechanical designs, piping layouts, specifications, and calculations for piping, and structural supports and other systems, ensuring compliance with ASME, API, ASTM, ISO, and client standards. Perform design calculations, cost estimates, and bills of materials (BOMs) in accordance with project codes and standards.
• Prepare construction documentation such as material take-offs (MTOs), method statements, specifications, and material requests.
• Develop and update piping isometrics, layouts, and structural support drawings using AutoCAD and 3D design tools. Prepare and update piping layouts, isometric drawings, and structural support drawings using AutoCAD and 3D design tools.
• Collaborate with multidisciplinary teams (civil, electrical, instrumentation, QA/QC) to ensure seamless system integration and execution.
• Implement QA/QC procedures, verify compliance with approved drawings and specifications, and oversee testing and handover activities.
• Monitor progress, manage documentation, prepare as-built drawings, and recommend design or process improvements for performance and cost efficiency.
Mechanical Engineer Alcon Nigeria Limited, Port Harcourt · Part-time Feb 2016 – Aug 2026 10 yrs 6 mos Alcon, Trans-Amadi, Port Harcourt (Alcon/ABB-LV Project) & Indorama Petrol Chemical Project, Port Harcourt, Rivers State • Design plumbing systems for industrial and residential applications, including wastewater and sewage layouts, potable water distribution, firefighting piping networks, and HVAC systems. Ensure full compliance with industry standards and project specifications (e.g., Alcon/ABB-LV Project).
• Develop 2D/3D HVAC layouts and perform heat load calculations for workshops and industrial areas (e.g., ALCON-Bonny Project).
• Support the installation and alignment of piping systems, mechanical equipment, vessels, and pipe racks. Ensure compliance with Original Equipment Manufacturer (OEM) specifications and international engineering codes during execution.
• Interpret mechanical drawings to guide the correct installation of equipment and vessels, maintaining alignment with the original design intent in Indorama Project.
• Update and finalize As-Built mechanical drawings reflecting site modifications for various projects (e.g., Nun-River FLB Project). Perform architectural and mechanical design analysis for system optimization across industrial and residential facilities.
• Prepare detailed MTOs and technical progress reports to support procurement planning and ensure alignment with project timelines and budget targets.
• Determine precise construction coordinates for various site areas and implement hyperlinking between AutoCAD drawings and spreadsheet data for enhanced project monitoring (e.g., AFAM Project).
• Work closely with engineers, supervisors, and cross-functional teams to ensure project activities are executed in line with technical requirements, safety protocols, and schedule commitments.
Mechanical CAD Engineer Alcon Nigeria Limited, Port Harcourt · Part-time Sep 2023 – Jul 2026 2 yrs 10 mos Assa North-Ohaji South LGA, Imo State, (AGPC & SPDC Project) • Design General Arrangement (GA) and Isometric drawings for various piping classifications including upstream pipeline systems, wastewater networks, potable water distribution, and firefighting layouts, tailored to Field Logistic Base (FLB) camps and industrial sites. Ensure all designs comply with relevant international codes, client specifications, and project requirements.
• Prepare detailed isometric, spool, and fabrication/shop drawings, including pipe supports, hangers, and structural components. Assign spool numbers for traceability and ensure accurate representation for manufacturing and site installation.
• Implement design changes based on client feedback and evolving project requirements. Validate updated drawings against safety, mechanical and piping engineering standards (e.g., ASME, ANSI) to ensure regulatory compliance and design integrity.
• Design storage tanks (e.g., diesel day tanks) and associated equipment with consideration for capacity, pressure, material compatibility, and operational performance in line with project specifications.
• Generate comprehensive MTOs for all piping components—fittings, flanges, valves, and accessories. Assist procurement by evaluating supplier specifications and ensuring selected materials meet project standards and schedules.
• Conduct on-site verification of layouts and dimensions. Capture field changes using redline markups, update design drawings accordingly, and ensure all modifications are reflected in final documentation.
• Finalize As-Built drawings incorporating all redline updates. Ensure completeness and accuracy of documentation for seamless handover to QA/QC teams and project stakeholders.
• Collaborate with Piping Engineers, QA/QC personnel, and Site Supervisors to coordinate resources, tools, and equipment for daily fabrication and installation activities. Monitor work to ensure execution aligns with latest design revisions and project specifications.
CAD Piping Engineer Montego Upstream Services Limited (MUSL), Port Harcourt, Rivers State · Part-time Aug 2023 – Aug 2025 2 yrs PHRC Rehabilitation Project, Alesa, Rivers State • Develop and optimize piping layouts, routing configurations, and structural supports to ensure system efficiency, maintainability, and compliance with industry standards such as ASME, ANSI, and API.
• Review, validate, and manage technical documentation, including design reports, drawings, and material requisitions, ensuring adherence to specifications and regulatory codes.
• Prepare comprehensive Bills of Materials (BOM) and Material Take-Offs (MTOs) to support accurate material selection, budgeting, and procurement activities.
• Conduct site visits to verify layouts, measurements, and as-built conditions. Implement redline markups for field modifications and ensure updates to final documentation for client handover.
• Oversee piping installation activities, perform weld mapping on isometric drawings, and verify alignment with equipment to ensure fabrication and construction accuracy.
• Work closely with engineers, designers, and project teams to align piping deliverables with broader project objectives. Provide technical support to procurement, subcontracting, and site execution teams.
• Lead the preparation, validation, and documentation of hydrostatic and pneumatic test packages for new installations and repairs in industrial facilities or refineries.
• Document lessons learned contributed to the development of improved design methodologies. Implement innovative and cost-effective solutions to enhance project delivery and departmental efficiency
AutoCAD Engineer Mega Projects Engineering Service Limited Wuse II, Abuja · Part-time Oct 2009 – Dec 2015 6 yrs 2 mos Design of Electricity Master Plan Project for Phase III, FCT Abuja • Develop and design geographical maps detailing the proposed locations of 132kV & 33kV, 33/11kV substations, along with the routing of 132kV and 33kV cables, 11kV feeders (11/0.415kV substations), and 11kV switching station arrangements. Create Single Line Diagrams (SLDs) for the 33kV cable network within 132/33kV substations, ensuring clarity and compliance with power system planning and distribution standards.
• Design and draft industrial and residential buildings, conducting a detailed analysis of architectural, mechanical, electrical, and civil engineering aspects to ensure optimal functionality, structural integrity, and compliance with project specifications.
• Contribute to project documentation by preparing technical reports and assisting in the Master Plan Project for Phase III, FCT, Abuja, including document compilation, report structuring, and data presentation to support project planning and execution.

Education

University of Ilorin, Ilorin, Kwara State, Nigeria Bachelor of Engineering (B.Eng), Mechanical Engineering, Second Class Lower 2002 – 2006 Activities and Societies: Nil Nil

Other experience

National Youth Service Corps (N.Y.S.C) • Teach Further Mathematics (SSS1 - SSS3)
• Community Development Service (CDS) of one (1) year National Youth Service Corps (NYSC), Batch B
2007/2008 session

Licenses & Certifications

Corporate member, Nigerian Society of Engineer (MNSE) Nigerian Society of Engineers Jul 2024 – Present