Job Title: Senior Mechanical Engineer II Location: Gaithersburg, MD (Onsite) Hours/Schedule: Monday – Friday, Standard Business Hours Compensation: $115,000 – $140,000 + bonus eligibility Type: Direct Hire Overview A growing life sciences and bioprocessing organization is seeking a Senior Mechanical Engineer II to support the design and development of advanced mechanical systems and sterile consumable technologies used in GMP manufacturing environments. This is a highly collaborative, hands-on engineering role offering exposure to innovative bioprocessing technologies, cross-functional development teams, and complex product development initiatives. Responsibilities
Lead mechanical design and development for GMP manufacturing systems and consumables
Create CAD models, drawings, BOMs, and ECOs in SolidWorks
Perform tolerance analysis, FEA, and root cause investigations
Support prototyping, testing, and design verification activities
Design sterile single-use bioprocessing and fluid handling systems
Develop and execute validation and testing protocols
Support design transfer and DHF documentation
Collaborate with engineering, manufacturing, quality, and suppliers
Mentor junior engineers and provide technical guidance
Ensure compliance with GMP, regulatory, and engineering standards
Develop SOPs and engineering documentation
Requirements
B.S. in Mechanical Engineering required; M.S. preferred
8+ years of mechanical design experience
Experience in medical device, bioprocessing, pharma, or regulated industries
Hands-on experience with sterile single-use systems or fluid assemblies
Strong knowledge of fluid systems, pumps, valves, manifolds, and flow paths
Experience with sealing interfaces, tolerance analysis, and complex mechanical systems
Proficient in SolidWorks; PDM experience preferred
Familiarity with DFx, manufacturability, reliability, and cost optimization
Experience with bioprocessing systems such as bioreactors or filtration technologies
FEA experience preferred; COMSOL is a plus
Knowledge of GMP environments and cleanroom-compatible design
Familiarity with ISO 13485, ISO 9001, ISO 10993, ISO 14971, and design controls
Experience with validation, testing, and engineering documentation
Prototyping and fabrication experience preferred (CNC, molding, 3D printing, etc.)
Strong communication, collaboration, and problem-solving skills
Ability to travel domestically up to 10–15%
Benefits Our client provides a comprehensive benefits package including medical, dental, and vision coverage, retirement savings options, paid time off, professional development opportunities, and bonus eligibility. #M-3 Ref: #558-Scientific