About Immensa
Immensa is transforming how the world's largest energy companies address critical spare part challenges. Our solutions help asset-intensive organisations decrease over-stocking, reduce downtime, manage obsolescence, and strengthen supply chain resilience through advanced digital inventory and distributed manufacturing technologies.
We partner with some of the world's largest Oil & Gas and industrial companies, supporting mission-critical operations where reliability, quality, and trust are essential.
Role Overview
We are seeking a Manufacturing Engineer – Subject Matter Expert (Rotating Equipment), reporting to the Head of Project Management. This is an individual contributor role with matrix accountability for assigned project teams and supplier deliverables.
- To act as the technical subject-matter expert for manufacturing of rotating equipment components for pumps, compressors, turbines, gearboxes and drivers — interpreting 3D models and 2D engineering drawings to define, plan and drive successful execution.
- To own the manufacturing project lifecycle for rotating equipment scopes, from kick-off through supplier delivery and final inspection, ensuring On-Time-In-Full (OTIF) delivery against customer requirements.
- To be the primary technical and commercial interface between Immensa and its rotating equipment supply base, translating design intent into a manufacturable, quality-assured production route.
Main Responsibilities
- Read, interpret and validate 3D CAD models and 2D engineering drawings — including GD&T, datums, running and interference fits, tolerances, surface-finish, coating and NDT callouts — for rotating components such as shafts, impellers, rotors, casings, diffusers, wear rings, sleeves, seal and bearing housings, couplings and gears.
- Select and justify the optimum manufacturing route (multi-axis machining, turning and turn-mill, gear cutting and grinding, casting and forging supply, welding and weld overlay, thermal spray/HVOF, heat treatment) and material of construction for the service conditions.
- Define and control the characteristics critical to rotating function — concentricity and runout, shrink and interference fits, internal clearances, hydraulic passage geometry, hardness and coating specification, and dynamic balancing grade (ISO 21940 / API).
- Develop and manage project schedules, milestones and deliverables for assigned rotating equipment orders, tracking live status against OTIF targets.
- Drive supplier execution — issue technical data packages, review machining, welding, heat-treatment and assembly process plans, and close out technical queries.
- Lead design and process reviews; identify barriers early and apply sound engineering judgement to provide practical solutions.
- Own risk identification and mitigation across technical feasibility, quality, cost and delivery; maintain project risk and lessons-learned registers.
- Manage stakeholders across sales, DFAM/design, quality, production and the customer, providing clear status reporting and timely escalation.
- Review inspection and test data (dimensional/CMM, runout and dynamic balancing reports, NDT — MPI/DPI/UT, coating thickness and bond strength, material certificates, and performance or spin testing where applicable) and disposition non-conformances with the responsible design engineer.
- Support Quality in preparing Inspection & Test Plans (ITPs) and ensure supplier compliance to API, ASTM, ISO and customer specifications.
- Support estimation and tendering by defining the manufacturing journey, machining, assembly and testing costing inputs and realistic lead times for rotating equipment scopes.
- Coordinate reverse-engineering and spare-parts projects for legacy and obsolete rotating parts, justifying OEM design and material adaptations where required to achieve manufacturability and form, fit and function equivalence.
Scope of Authority
Works closely with sales, DFAM/design, quality, production and external suppliers. Authorised to direct supplier technical execution and disposition assigned project deliverables within the project management framework.
Accountabilities
- Strict adherence to the Company's Policies & Procedures.
- Operate strictly within the Company ISO framework.
- Delivery of assigned projects to OTIF, quality and cost targets as per set KPIs.
Qualifications and Skills Required
- Degree in Mechanical, Manufacturing or Production Engineering (minimum Bachelor's).
- Minimum 5–6 years experience in rotating equipment within oil & gas, energy or heavy engineering, ideally gained with an OEM, an authorised repair shop or an operator's rotating equipment function.
- Deep subject-matter expertise in rotating equipment components and assemblies — centrifugal and positive-displacement pumps, centrifugal and reciprocating compressors, steam and gas turbines, gearboxes and drivers — including shafts, impellers and rotors, casings, mechanical seals, bearings and couplings.
- Working knowledge of assembly practice, fits and clearances, dynamic balancing, rotor-dynamic considerations, surface engineering and associated NDT and testing methods.
- Proven ability to read and interpret 3D models and 2D engineering drawings, including full GD&T; familiarity with CAM/CNC programming and machining of rotating parts is an advantage.
- Strong familiarity with API (including 610, 611, 617 and 682), ASTM, ISO and equivalent standards for materials and applications.
- Demonstrated project-management capability — planning, scheduling, risk mitigation and stakeholder management.
- Excellent communicator; tailors technical messaging to internal teams, external customers and suppliers.
- Knowledgeable in reverse engineering, spare-parts production, inspection and testing.
- Exceptional attention to detail and accuracy under pressure, with a strong sense of urgency and ownership.
- Self-motivated team player, effective both independently and across multiple locations and time zones.
