Senior Mechanical Design Engineer - Trashcon Lab

About the Role

Based on our ongoing and upcoming projects, the Design & Engineering Department is expanding to

strengthen our engineering capabilities.

We are looking for an experienced Senior Mechanical Design Engineer to lead the design and

development of Special Purpose Machines (SPMs). The ideal candidate will be responsible for

delivering reliable, manufacturable, and cost-effective engineering solutions throughout the complete

product lifecyclefrom concept development and detailed design to manufacturing, installation,

commissioning, and continuous product improvement.

The role requires strong technical expertise, engineering decision, and cross-functional ensure

successful execution of projects meeting customer requirement, quality, cost, and schedule

requirements.

Key Responsibilities

• Lead the mechanical design and development of Special Purpose Machines (SPMs) from

concept through commissioning.

• Develop innovative machine concepts and detailed mechanical designs based on customer

and project requirements.

• Prepare 3D models, assemblies, fabrication drawings, manufacturing drawings, and detailed

engineering documentation using SolidWorks and AutoCAD.

• Perform engineering calculations, tolerance stack-up analysis, and functional validation to

ensure reliable machine performance.

• Select and size motors, gearboxes, bearings, shafts, pneumatic components, and power

transmission systems based on engineering calculations and application requirements.

• Prepare Bills of Materials (BOMs), material specifications, and technical documentation for

manufacturing and procurement.

• Review and approve engineering drawings, BOMs, and design documentation before release.
• Apply Design for Manufacturing and Assembly (DFM/DFA) principles to improve

manufacturability, ease of assembly, serviceability, and product quality.

Conduct Design Failure Mode and Effects Analysis (DFMEA) to identify and mitigate design

risks during the development stage.

• Drive Value Engineering and Cost Engineering initiatives to optimize machine performance,

manufacturing cost, and lifecycle cost without compromising quality, safety, or functionality.

• Coordinate closely with Production, Procurement, Electrical, Automation, Quality, and

Installation teams to ensure seamless project execution.

• Provide technical support during fabrication, assembly, testing, Factory Acceptance Testing

(FAT), Site Acceptance Testing (SAT), installation, and commissioning.

• Troubleshoot design-related issues during manufacturing and site execution and implement

effective engineering solutions.

• Conduct Root Cause Analysis (RCA) for machine failures and recurring issues, and

implement permanent corrective actions.

• Participate in project planning, technical reviews, risk assessment, and cost estimation

activities.

• Develop and maintain engineering standards, reusable machine modules, and design best

practices.

• Mentor junior design engineers and support their technical development.
• Ensure all engineering deliverables comply with company standards, applicable engineering

codes, safety requirements, and project timelines.

Required Qualifications

• Bachelor's Degree in Mechanical Engineering or a related discipline.
• Minimum 8 years of experience in designing Special Purpose Machines (SPMs) or custom

automation equipment.

• Strong proficiency in SolidWorks, AutoCAD, and engineering drafting standards.
• Sound knowledge of machine design, mechanisms, machine elements, fabrication, machining

processes, welding, and material selection.

• Strong understanding of pneumatics, power transmission systems, structural design, and

machine assemblies.

• Hands-on experience in the selection and sizing of motors, gearboxes, bearings, shafts,

couplings, chains, belts, and pneumatic systems.

• Strong knowledge of GD&T, tolerance stack-up analysis, engineering calculations, and

design validation.

• Practical experience in Design for Manufacturing and Assembly (DFM/DFA), Design Failure

Mode and Effects Analysis (DFMEA), Value Engineering, Cost Engineering, and Root Cause

Analysis (RCA).

• Good understanding of manufacturing processes including machining, fabrication, sheet

metal, welding, assembly, and surface finishing.

• Strong analytical, problem-solving, troubleshooting, and communication skills.
• Ability to manage multiple projects and coordinate effectively with cross-functional teams.

Preferred Experience

• Experience in designing heavy industrial machinery involving conveyors, rotating equipment,

fabricated structures, shafts, bearings, power transmission systems, and material handling

equipment is highly preferred.

• Experience in automation equipment, conveyors, pick-and-place systems, packaging

machines, recycling equipment, waste processing machinery, or similar industrial systems.

• Exposure to onsite installation, commissioning, FAT(Factory Acceptance testing) and

customer support.

• Experience in design standardization, modular machine design, and engineering

documentation systems.

• Ability to lead small engineering teams and mentor junior engineers.
• Familiarity with applicable machine safety standards, engineering best practices, and

industrial regulations.

Key Competencies

• Mechanical Design & Engineering
• Machine Design & Development
• Special Purpose Machines (SPM)
• SolidWorks & AutoCAD
• Engineering Calculations
• Motor & Gearbox Selection
• Pneumatic System Design
• Machine Elements & Power Transmission
• GD&T & Tolerance Analysis
• DFM/DFA
• DFMEA
• Value Engineering
• Cost Engineering
• Root Cause Analysis (RCA)
• Design Validation
• Manufacturing & Fabrication
• Cross-functional Collaboration
• Technical Leadership
• Project Execution
• Continuous Improvemen

Round 1 HR Discussion

• Brief discussion on the candidate's experience, current role, notice period, compensation, and

interest in the opportunity.

• Basic assessment of communication and overall fit.

Round 2 Technical Evaluation

The candidate will be assessed on:

• Mechanical design fundamentals.
• Machine design calculations.
• Selection and sizing of motors, gearboxes, bearings, shafts, couplings, and pneumatic

components.

• GD&T and tolerance stack-up analysis.
• DFM/DFA, DFMEA, Value Engineering, Cost Engineering, and Root Cause Analysis (RCA).
• Machine elements, fabrication, machining, and manufacturing processes.
• Conveyor systems, power transmission, rotating equipment, and material handling systems.
• Design approach for Special Purpose Machines (SPMs).
• Discussion on previous projects, design decisions, challenges faced, and solutions

implemented.

The technical evaluation may also include:

• Solving practical engineering problems.
• Reviewing engineering drawings and identifying improvements.
• Performing basic engineering calculations.
• Developing a conceptual design based on a given requirement.

Round 3 – Design Assessment

Candidates may be required to complete a practical design assignment to assess their engineering and

design capabilities. The assessment may include:

• Developing a concept for a given application.
• Performing design calculations.
• Selecting suitable motors, gearboxes, bearings, shafts, and pneumatic components.
• Preparing a basic 3D model, manufacturing drawings, and BOM using SolidWorks.
• Explaining the design approach, assumptions, manufacturability, and cost optimization.

Round 4 – Final Technical Discussion

A detailed discussion with the technical panel to assess:

• Engineering knowledge and practical experience.
• Project ownership and execution.
• Design review and decision-making approach.
• Problem-solving and troubleshooting methodology.
• Cross-functional coordination and leadership ability.

The final selection will be based on the candidate's technical competency, practical engineering

approach, problem-solving skills, communication, and overall fit for the role