{"id":3999370,"url":"https://alion.io/job/product-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2","title":"Senior Mechanical Design Engineer - Simplexity Product Development","company":{"id":2517685,"name":"Product Development Engineering Services | Simplexity","domain":"simplexitypd.com","url":"https://alion.io/company/simplexitypd","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"JazzHR","truth_index":null},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["North Reading, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":135000,"max":null,"currency":"USD","period":"year","gross":null,"usd_annual":135000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"GD&T","optional":false},{"name":"Gmail","optional":false},{"name":"SolidWorks","optional":false}],"status":"live","first_seen_at":"2026-11-10T02:45:58Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-10T08:52:25Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"As a Senior Mechanical Design Engineer, you will work with teams designing subsystems for a range of products, tools, and equipment, including robotics, mechanisms, and biotech instrumentation. Specific responsibilities vary by project, but you must have command of mechanical engineering fundamentals and know how to apply them to simple, reliable design.\nThis role is ideal for someone with a strong technical background, technical leadership experience, and a history in product development consulting. If you thrive in a fast-paced environment but enjoy a casual, flexible work atmosphere, Simplexity may be the place for you.\nArchitect, design, and integrate complex mechanical systems.\nCommunicate design concepts efficiently using block diagrams, rough CAD, schematics, and sketches.\nDesign solutions using custom (injection-molded, machined, 3D-printed, sheet metal), semi-custom, and off-the-shelf parts.\nPerform analytical studies applying engineering principles such as force and energy balances, structural calculations, mechanical vibration, tolerance analysis, and power transmission.\nManage large 3D CAD assemblies.\nGenerate and maintain an organized bill of materials.\nCreate 2D drawings to ASME Y14.5 GD&T standards.\nQuickly prototype design concepts, test against specifications, and iterate.\nCollaborate with engineers across disciplines.\nSelect manufacturing methods for prototyping and production, and design components accordingly.\nPrioritize technical issues on your designs and drive them to resolution.\nCommunicate regularly with clients and project management on project status, issues, design decisions, and risks.\nCoordinate with external partners such as industrial design and contract manufacturing firms.\nWork on-site at client facilities in the local area, such as North Reading, MA\nConduct or inform simulations (structural FEA, thermal FEA, CFD, etc.) as needed.\nQUALIFICATIONS\nBS or MS in Mechanical Engineering from an accredited four-year university\n10+ years of relevant professional engineering experience\nProficiency in SolidWorks (highly preferred) or an equivalent CAD package\nThorough understanding of 2D drawings, preferably with strong GD&T (ASME Y14.5) skills, and how they apply to design and manufacturing\nKnowledge of manufacturing processes and design considerations: injection molding, sheet metal, machining, rapid prototyping, etc.\nKnowledge of assembly and alignment methods: screw joints, snap fits, dowel pins, heat-staking, etc.\nAbility to root-cause system-level defects\nExperience designing and integrating complex systems with cross-functional teams (electrical, firmware, software, and systems engineers)\nStrong organizational and analytical skills, attention to detail, and the ability to plan and prioritize effectively\nHighly motivated, with a demonstrated ability to work independently with minimal supervision\nClear communication and detailed report writing skills\nPositive attitude and focus on client success\nEthical and honest in every part of the job\nPLUSES TO HAVE\n Experience with mechatronics and electro-mechanical systems, including stepper and DC motors, solenoids, gear and belt drives, linear actuators, bearings, sensors, and electronics\nProduct development consulting experience with clients\nExperience using a CAD PDM system to manage CAD files\nRobotics, instrumentation, and test equipment design experience\nPneumatic and/or hydraulic system design experience\nMedical device experience, including work within a medical quality system\nFinite Element Analysis, Computational Fluid Dynamics, or other simulation package experience\nCOMPENSATION AND BENEFITS\nBase salary range: $135K-$165K, depending on experience and skill set\nExcellent healthcare plan (medical, dental, and vision), fully paid by the company for employees and partially paid for dependents\n401(k) plan with company match\nShort- and long-term disability, AD&D, and life insurance\nPaid maternity/new parent leave\n11 paid holidays\n3 weeks of paid time off (PTO) per year, increasing after 2, 5, and 9 years of service\nJob location: Boston area. Note that this role initially requires onsite presence at a Simplexity client site, specifically in North Reading.\nSimplexity\nSimplifying the Complex. Simplexity is a product development engineering firm hired by leading technology companies to design their next-generation products. In an industry of overly complex design and production, we strive for simplicity, reducing product cost and improving reliability for our clients through our Product Development Process.Why join Simplexity Product Development?\nOur teams are close-knit and collaborative, made up of people who want to build something great and delight our customers. That doesn’t mean grinding 60 hours a week. We believe quality, creative work can usually be done in 40-45 hours per week, and that each employee should own their work-life balance.\nWe offer meaningful engineering, technical growth, and the chance to be on the “front line” of product development. If you thrive on variety and want to work with talented engineers on cutting-edge products, this could be the place for you.\nNo recruiters please.\nSimplexity is an equal-opportunity employer. We celebrate diversity and are committed to an inclusive environment for all employees. Diverse candidates are encouraged to apply.\n*** Please note that Simplexity Product Development will never ask you to respond to a non-SimplexityPD domain such as Gmail, Ymail, or Hotmail. If you suspect someone is impersonating Simplexity Product Development from a fraudulent email address, do not reply. If you are unsure, report the incident through the contact form at https://www.simplexitypd.com/contact/. ***","description_format":"text","description_chars":5717,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Life insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Industrial Design","Engineering Services"],"lifecycle":[{"event":"open","at":"2026-11-10T02:45:58Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":36,"reasons":["conf:4","win:early"],"computed_at":"2026-11-10T06:52:35Z"},"pay":{"stated_usd_annual":135000,"is_top_pay":false},"html_url":"https://alion.io/job/product-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2","json_url":"https://alion.io/job/product-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2.json","meta":{"generated_at":"2026-11-10T12:22:35Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":28724,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-11T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":2517685},"rest":"https://alion.io/mcp/rest/get_company?id=2517685"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fproduct-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fproduct-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fproduct-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/product-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fproduct-development-engineering-services-simplexity-senior-mechanical-design-engineer-simplexity-product-development-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3999370}},{"tool":"search_jobs","arguments":{"company":"simplexitypd.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3999370},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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