Sembawang - Senior Engineer
About the Company
Wah Son Engineering is a specialized manufacturer of high-quality, precision-engineered tooling solutions for the aerospace industry. We design and build custom tools to meet the unique requirements of our clients, operating in a high-mix-low-volume (HMLV) environment that demands flexibility, responsiveness, and technical depth.
In addition to our core manufacturing capabilities, Wah Son Engineering provides Maintenance, Repair, and Overhaul (MRO) services to leading aerospace companies, such as Rolls-Royce, GE Aviation, and Pratt & Whitney.
At Wah Son Engineering, no two days are the same. Every job presents new challenges and learning opportunities. If you thrive in a fast-paced, technically demanding environment and excited to work on unique, cutting-edge aerospace tooling solutions, we’d love to hear from you.
About the Role
We are looking for a Senior Engineer to lead planning, costing, and process control. Play a critical role in translating customer requirements into accurate and feasible job orders, ensuring alignment between design specifications and manufacturing capabilities.
You’ll support quotation processes, interpret technical drawings, develop production routings, and take ownership of job releases. You’ll also be the technical point of contact for material selection and non-conformance assessments, while mentoring junior engineers.
This is a hands-on engineering role for professionals who enjoy problem-solving, cross-functional collaboration, and continuous improvement.
Key Responsibilities
Costing and Quotation Support- Reviewing and support accurate job costing by analysing material, labour, and process costs.
- Provide engineering input during customer quotation stages to ensure feasibility.
- Interpret drawings translate them into engineering specifications
- Create Bill of Materials (BOM) and generate production process planning using ERP system.
- Prepare clear and complete production drawings aligned with manufacturing capabilities.
- Take full ownership of job firming and release, ensuring alignment with production schedules and capabilities.
- Serve as gatekeeper for job readiness – validating quality, completeness, and feasibility before release.
- Evaluate customer material specifications and coordinate with Supply Chain to recommend suitable material and substitutes.
- Justify material choices based on technical fit, machinability, and manufacturing risk.
- Support the resolution of lower-risk non-conformance issues through structured technical assessments.
- Recommend adjustments, escalate when needed and assist in documentation of Source Problem Report (SPR).
- Investigate minor internal errors, propose corrective actions, and assist in preparing documentation for Material Review Board (MRB).
Note: As part of your onboarding, you will undergo a comprehensive 6-month On-the-Job Training (OJT) on the production shopfloor. This immersive experience will give you valuable hands-on exposure, deepen your understanding of our operations, and prepare you for long-term success in your role.
Who we are looking for?
Required Qualifications and Experience- Polytechnic Diploma or higher in Engineering (Advanced & Digital Manufacturing, Mechanical, Mechatronics)
- Minimum 5 years’ experience in a high-mix, low-volume manufacturing environment.
- Strong working knowledge of:
Technical drawing interpretation (including welding and critical features)
ERP systems (BOM, process routing, job releases).
- Proven ability to:
Assess and release job packages to meet production readiness standards.
Recommend material options based on availability, machine capabilities, and performance requirements.Support resolution of non-conformance issues (SPRs/MRBs) with sound engineering judgment.
Preferred Attributes- Hands-on expertise with CNC machining and precision measurement tools, with a strong understanding of their strategic applications.
- Track record of leading engineering projects and coordinating across functions (engineering and production).
- Strong stakeholder management in cross-functional collaboration and client-facing engagements.
- Mentoring skills and a continuous improvement mindset.
What we offer
At Wah Son Engineering, we believe that great work starts with a great work environment. Our benefits include:
- Time Off to Recharge – Birthday Leave, Holiday Leave, and Chinese New Year Eve Leave.
- Family Support – Family Care Leave when your loved ones need you.
- Stay Energised – Subsidised in-house lunches daily.
Our Culture and Values
We don’t just offer jobs — we build careers. Our company culture is anchored in four core values:
- Continuous Improvement – We invest in learning and innovation
- Ownership – We empower individuals to take accountability and lead.
- Enabling People – We support your success with the right tools and trust.
- Teamwork – We work and win together.