Senior Mechanical Engineer, Ruggedized Communications Leader

OTTO Engineering, Inc.; Carpentersville (IL); On-site; USD 110,000 - 125,000; Full time

Benefits offered by this job

Health insurance

Vision insurance

401(k) with company match

Life insurance

10 paid holidays

Holiday party

Job summary

OTTO Engineering, Inc. is seeking a Senior Mechanical Engineer IV to lead the mechanical design, development, and validation of ruggedized communications products used by public safety and military teams worldwide.

You will own system architectures, manage multiple development efforts from concept to production, and provide technical leadership across functions. Ideal candidates bring 7+ years of mechanical engineering experience, CREO CAD expertise, and deep knowledge of plastics, elastomers,

Qualifications

• Bachelor’s degree in Mechanical Engineering.
• Minimum 7 years of mechanical engineering experience, including extensive use of mechanical CAD (CREO preferred).
• Expertise in plastics, elastomers, die‑cast metals, overmolding, and mechanical integration with PCBs.
• Strong understanding of DFM/DFA, tolerance analysis, and environmental/ruggedization requirements.
• Demonstrated ability to lead complex engineering projects with minimal supervision.
• Excellent oral and written communication skills.
• Ability to work effectively in a fast‑paced, hands‑on engineering environment.

Responsibilities

• Define mechanical design concepts, system architectures, and performance specifications for ruggedized communication products that meet or exceed customer and marketing goals.
• Establish project schedules, milestones, and deliverables, ensuring alignment with customer expectations and internal development timelines.
• Perform advanced engineering analyses, including stress modeling, tolerance stack‑ups, thermal and environmental modeling, and statistical evaluation of test data using manual methods and CAE tools.
• Develop complete 3D CAD layouts of assemblies, subassemblies, and detailed components using CREO; review and approve designs created by lower‑level engineers.
• Prototype, test, and iterate designs to meet IP‑rated sealing, MIL‑STD durability, drop, vibration, and thermal cycling requirements.
• Prepare and approve engineering documentation, including drawings, BOMs, ECNs, specifications, and verification reports.
• Lead cross‑functional coordination across engineering, manufacturing, quality, supply chain, vendors, and customers to achieve project goals.
• Provide production and quality support, including root‑cause analysis, design improvements, and process troubleshooting for existing products.
• Participate in and guide MRB activities, including discrepant material reviews and component analysis.
• Serve as a technical leader, mentoring Mechanical Engineer I–III team members and driving engineering best practices.
• Assist with other related duties as required or assigned.

Skills

CREO

DFM/DFA

Tolerance analysis

Leading complex projects

Excellent communication

Education

Bachelor’s degree in Mechanical Engineering

Tools

CREO

Plastics/Elastomers/Overmolding

PCB integration

Job description

OTTO Engineering, Inc. is seeking a Senior Mechanical Engineer IV to lead the mechanical design, development, and validation of ruggedized communications products used by public safety and military teams worldwide.

You will own system architectures, manage multiple development efforts from concept to production, and provide technical leadership across functions. Ideal candidates bring 7+ years of mechanical engineering experience, CREO CAD expertise, and deep knowledge of plastics, elastomers,