DAVID McCLELLAN
Concord,NH
Summary
Dynamic and results-driven Project and Process Engineer with extensive experience in diverse manufacturing and engineering environments, including commercial, military, and aerospace sectors. Proven track record in successfully managing projects involving metal and composite parts, demonstrating strong adaptability to increasing responsibilities. Committed to delivering innovative solutions that enhance efficiency and drive operational excellence. Eager to contribute expertise in a challenging role that fosters professional growth and impactful contributions.
Overview
22
22
years of professional experience
Work History
Estimating & Customer Service Manager
Prototek
08.2024 - 08.2025
- Responsible for managing a team of 8 estimators and 3 Customer Service personnel handling quoting activity for miscellaneous sheet metal and machined parts. Familiar with most all types of fabrication equipment and processes for metalworking and composite part. Worked with customers and vendors at all levels. Utilized CAD models and drawings to review parts to be quoted. Updated Salesforce with pertinent information related customer and job and reported on estimating activity on a weekly basis.
Engineering Manager
L.M. Gill Welding & Manufacturing
05.2023 - 07.2024
- Provided leadership to 7 direct reports in the areas of Estimating and Engineering in a manufacturing environment of CNC machined and welded assemblies and details for General Dynamics, Electric Boat. Establish manufacturing time standards and update ERP system with latest information. Visit outside vendors and customers to discuss work being performed and to negotiate product costs and deliveries. Review all estimates prior to submitting to customers and all work instructions / travelers prior to issuing to the shop floor. Work close with company president to make recommendations for new equipment, processes and development of outside suppliers. Filled in for Welding Engineer when needed.
Estimator / Composites Subject Matter Expert (SME) - Contract
Blue Origin
11.2022 - 05.2023
- Process should cost estimates for new and existing spacecraft / rocket parts made from both metal and composite materials for New Glenn & New Shepard programs. Composites subject matter expert for estimating various composite materials and processes. Generate estimates utilizing aPriori estimating software along with other software such as Creo, Windchill, Jules and Coupa. Work closely with Manufacturing engineering and Procurement departments to assist in gathering data when necessary. Worked remotely while having to interact with people from all over the United States via TEAMS.
Estimator
Spartan Aerospace, LLC (Acquired by Enjet Aero 4/2022)
04.2019 - 11.2022
- Processed new requests for quotes on a daily basis for CNC machined parts as well as sheet metal parts and assemblies for new and existing customers like Pratt & Whitney, G.E. and Rolls Royce which includes laying out processes, calculating total hours, determining material costs and submitting bids back to the customer. Conduct bi-weekly meetings to determine bid / no-bid status on all RFQ’s received. Daily communication with suppliers regarding price and lead time for materials and outside processes.
Strategic Sourcing Manager
Colt
12.2018 - 04.2019
- Responsible for achieving cost objectives by approving new suppliers for the manufacture of Government related gun parts. Track the progress of new suppliers with on-time deliveries. Negotiate part pricing and assist suppliers with US Government approval process. Work close with compliance officer while approving new suppliers for the manufacture of gun parts. Worked on multiple projects involving suppliers and internal engineering and quality departments to help streamline processes and resolve problems with the manufacture of various parts.
Engineering Estimator
MB Aerospace
06.2017 - 11.2018
- Sole Estimator developing quotes for OEM customers. Worked on the implementation of Costimator, cost estimating software. Highly involved with customers regarding part configuration/design making suggestions for better producibility, ultimately lowering the cost to manufacture. Maintained close working relationships with vendors, reviewing scope of work and delivery requirements particularly for NPI jobs. Member of Employee Engagement Committee and President of company golf league. Resumed duties as Estimator prior to leaving company in 2015.
Manufacturing Engineering Supervisor
Barnes Aerospace
11.2015 - 05.2017
- Develop new products and improve existing manufacturing processes in conjunction with the Manufacturing Engineers, Tool Designers, and C.N.C. Programmers. Analyze customer engineering drawings and documentation for design changes. Create part geometries and detailed operation sheets from customer part models. Thorough understanding of manufacturing processes, industry requirements, and the release system of engineering changes. Create repair procedures for non-conforming products. Participate in kaizen events, working closely with engineering and manufacturing personnel while encouraging and supporting team-work. Conduct engineering change reviews including cost impacts, tooling modifications and component suitability. Update ERP system as required. Responsible for 4 direct reports (manufacturing engineers) each responsible for their own product category. G.E. was primary customer.
Estimator / Project / Process Engineer
MB Aerospace
06.2010 - 10.2015
- Analyze customer drawings to develop manufacturing processes for quoting purposes. Develop complete quotation packages for customers such as Pratt & Whitney, Rolls-Royce and General Electric. Request quotations from outside suppliers for processes such as machining, heat treating, plasma coating, water jet and laser cutting as well as metal spinning, forgings and castings. Worked closely with customers to fully understand scope of work to be quoted. Maintain internal quote log with customer contact information and job specific information including quantities and due dates. Generate new and revise existing process operation sheets, routings and BOM’s utilizing 3D CAD models and Intuitive ERP system for parts up to 70” in diameter. Provide technical assistance during cause and corrective action meetings. Create repair procedures and related cost proposals for various aerospace engine components. Work closely with programmers, tool designers and machine operators on a daily basis. Costed repairs for engine parts for P&W as MB Aerospace is a FAA Repair Station. Conducted monthly AS9100 internal audits and reported findings to Quality & Manufacturing Managers. Team lead for development of new engine case for GKN Sweden maintaining all aspects of program responsibilities from process development with new manufacturing technologies to managing tooling budget and overall timeline of progress for manufacturing, testing and delivering 1st article.
Operations Manager
Thomas & Thomas Rodmakers Inc.
07.2009 - 02.2010
- Managed daily production activities in a small, 20-person fly rod manufacturing shop. Duties included hiring and coaching of personnel as required. Maintained inventory levels of rod components to fulfill orders. Worked closely with purchasing department and supervised production departments. Worked directly with outside suppliers both locally and abroad to supply materials of the highest quality while negotiating for the lowest possible price. Responsible for sales orders to be delivered on time by scheduling and assigning work to the production floor. Completed capital expenditure requests and justifications. Worked very closely with sales team on orders and delivery dates. Worked with Graphite and fiberglass prepreg material and composite machining equipment.
Cost Estimator / Process Engineer
MTI Systems Inc.
01.2009 - 07.2009
- Responsible for generating “Should Cost” estimates for precision manufactured aerospace parts for United Technologies divisions, Pratt & Whitney Canada, Hamilton Sundstrand, Sikorsky and other large OEM companies. Worked closely with the customers reviewing drawings, schedules and estimates for precision parts made from various metal alloys including welded assemblies, plastics and composite parts. Conducted research on latest machining techniques and equipment to optimize estimating software and to propose lower costs.
Manufacturing Project / Process Engineer
Mott Metallurgical Corporation
03.2003 - 01.2009
- As part of the Manufacturing Development Team, key roles included review of new jobs, hands on development of safe manufacturing techniques for the manufacture of powdered metal parts, creating process routings and proving out processes before turning over and training production operators. Investigating and recommending capital equipment involving fully automated systems for machining and assembly of small metal parts including pick & place part handling machines and automatic TIG welders. Frequent R&D efforts involving engineered, net shaped powdered metal parts as an alternative to conventionally machined parts from bar stock. Develop job cost estimates for the sales team. Mott Corporation is a world leader in porous / sintered metal parts used in filtration and specialty applications including medical uses. Filled in as second shift supervisor as required. Involved with Material Review Board to solve quality issues. Worked with cross-functional teams practicing LEAN principles and Six Sigma methodology to optimize workflow and increase product yields. Conducted airflow testing of metal filters on a daily basis.
Education
Mechanical Technologies
Springfield Technical Community College
Springfield, MASkills
- Experience with manual and CNC equipment
- Metal finishing operations
- Proficient in sheet metal component production
- Heat treating expertise
- Metal joining expertise
- Surface treatment expertise
- Specialized in tool and fixture development
- EDM process management
- Advanced welding techniques
- General inspection techniques
- Electrostatic painting technology
- UV painting materials expertise
- Expertise in composite fabrication tools
- Filament Winding & Braiding
- Experience with compression molding processes
- Proficient in resin transfer molding
- Autoclave-based curing techniques
- Proficient in vacuum bagging
- Composite material expertise
- Powdered metal processing
- Vacuum furnace operation
Timeline
Estimating & Customer Service Manager
Prototek
08.2024 - 08.2025
Engineering Manager
L.M. Gill Welding & Manufacturing
05.2023 - 07.2024
Estimator / Composites Subject Matter Expert (SME) - Contract
Blue Origin
11.2022 - 05.2023
Estimator
Spartan Aerospace, LLC (Acquired by Enjet Aero 4/2022)
04.2019 - 11.2022
Strategic Sourcing Manager
Colt
12.2018 - 04.2019
Engineering Estimator
MB Aerospace
06.2017 - 11.2018
Manufacturing Engineering Supervisor
Barnes Aerospace
11.2015 - 05.2017
Estimator / Project / Process Engineer
MB Aerospace
06.2010 - 10.2015
Operations Manager
Thomas & Thomas Rodmakers Inc.
07.2009 - 02.2010
Cost Estimator / Process Engineer
MTI Systems Inc.
01.2009 - 07.2009
Manufacturing Project / Process Engineer
Mott Metallurgical Corporation
03.2003 - 01.2009
Mechanical Technologies
Springfield Technical Community College