Oussama Rezzik El Marhoun

• End-to-End Product Lifecycle Management: Lead the design process for custom industrial fabrications, managing projects from initial concept and General Arrangement Drawing (GAD) development to the release of detailed production blueprints for the shop floor.

• Complex Mechanical Systems Design: Engineered structural components for high-capacity industrial equipment, including heavy-duty trailers and customized diesel storage tanks. Expertise spans load-bearing chassis design, sheet metal pattern development and welding specifications.

• Technical Project Leadership: Managed high-stakes project transitions, notably overseeing the design shift of a 5-ton payload trailer from medium-duty to heavy-duty classification. Resolved complex spatial conflicts by redesigning maintenance access and structural layouts to meet strict operational requirements.

• Optimization & BOM Management: Streamlined the Bill of Materials (BOM) process for custom assemblies, including specialized braking systems, axle hubs, and heavy-duty coupling mechanisms, ensuring market availability and alignment with client specifications.

• Collaborative Engineering: Partner with procurement, operations, and production to transform 3D concepts into fully realized industrial products, optimizing for manufacturing efficiency, material usage, and structural integrity.

• Led the full engineering design and validation of a 150 m modular HDPE floating breakwater for marina protection.
• Established the wave climate design basis using long-term wind data (2000-2026) and SPM/USACE methodologies for fetch-limited wave growth.
• Performed hydrodynamic analysis using ANSYS AQWA to evaluate wave transmission coefficients under multiple wave conditions and incidence angles.
• Demonstrated wave attenuation performance, achieving 35-87% reduction in wave height, ensuring compliance with marina comfort criteria (PIANC / AS 3962).
• Calculated environmental loads (wind, current, wave) in accordance with ROM 02-90, including conservative load combinations.
• Designed a complete mooring system, including:
• Load distribution across anchor lines.
• Chain sizing and safety factor verification.
• Mooring layout optimization for stability and operational constraints.
• Performed anchor block stability analysis (ROM 05-05), verifying sliding resistance using soil mechanics parameters (friction + cohesion).
• Conducted reserve buoyancy and flotation checks, confirming high safety margins ( 85% unused buoyancy capacity).
• Produced two comprehensive engineering reports:
• Wave Climate & Transmission Analysis.
• Mooring Design & Structural Integrity Assessment.
• Presented the full engineering design and calculation reports to a UPDA-certified consultant for technical review and validation.
• Delivered a fully validated design with high safety factors (e.g., sliding FS up to 5.8), ready for consultant review and approval.

• Developed 3D piping models in SolidWorks for the QatarEnergy LNG NFPS OCC Onshore Buildings & Infrastructure Project (COMP9).
• Produced piping 3D isometrics and general arrangement drawings from P&IDs and project specifications.
• Ensured compliance with ASME B31 piping codes, project standards, and fabrication practices.

• Designed and engineered pressure vessels, storage tanks, boilers, and process equipment in compliance with ASME BPVC, CODAP, AD 2000, and API 650.
• Performed detailed design calculations and code compliance verification, including shell sizing, nozzle reinforcement, and support design under wind, seismic, and piping loads.
• Conducted advanced FEA using ANSYS and SOLIDWORKS Simulation to assess stress, thermal effects, fatigue behavior, and structural optimization.
• Designed process systems including mixers (impeller selection, power sizing), pumps, motors, and instrumentation (pressure, temperature, flow transmitters).
• Verified material compatibility with process fluids and developed ATEX-compliant, corrosion-resistant designs for hazardous and aggressive environments.
• Produced detailed fabrication drawings with GD&T, prepared BOMs, and performed cost estimation (materials, welding, labor).
• Acted as primary technical interface with international clients and engineering consultants; led design reviews in English and represented the company in high-level technical meetings.
• Coordinated with suppliers and OEMs; supported welding engineering (WPS/PQR validation, NDT coordination).
• Supervised fabrication and assembly on-site, ensuring compliance with design, quality standards, and delivery schedules.
• Provided cross-functional technical support, including troubleshooting industrial equipment, interpreting control systems (VFDs, sensors, transmitters), and delivering rapid IT support to reduce downtime.
Key Projects:
• Cevital Group - Oilseed Trituration Plant, Béjaïa: Contributed to design of storage tanks and process equipment for large-scale production.
• SIM Chemical SPA - Yeast Production Plant: Produced comprehensive design calculation reports for 22 different equipment units, verifying code compliance and structural integrity under all critical load cases (operating, shutdown, testing, transportation, lifting, and seismic conditions).

• Designed mechanical components and custom equipment for a client in the industrial manufacturing sectors, ensuring compliance with relevant standards.
• Developed and optimized manufacturing processes, including equipment layout, material flow, and production planning to enhance productivity and reduce costs.
• Identified and evaluated qualified raw material suppliers and OEM vendors, balancing cost, quality, and lead time constraints.
• Sourced and recommended high-performance, cost-effective manufacturing equipment tailored to client needs and production volumes.
• Delivered tailored technical solutions and process improvements that increased operational efficiency, reduced downtime, and improved product reliability.
• Created detailed technical documentation, including calculation reports, CAD drawings, and process specifications to support procurement and fabrication.
• Advised client on design-for-manufacturing (DFM) practices and early-stage prototyping strategies using SOLIDWORKS and FEA tools.

-Welding techniques and quality control.
-NDT and DT testing.

-Pipelines Construction.
-Welding techniques and quality control.
-Corrosion prevention and control.
-Well drilling and construction.

-Automotive parts production by sand casting and die casting.
-Mold design and manufacturing.
-NDT and DT testing.
• Sand quality control.
• Quality control of manufactured parts.