Hartford, CT • (25.3 miles) • Full Time • 9/3/2026

DescriptionCreativity. Innovation. A desire to effect positive change. That’s what it takes to work at Fuss & O’Neill – because that’s what we do for the communities in which we work: we create, innovate, and design long-lasting improvements that improve quality of life. Quality of life is also important on the job, so we’ve prioritized work-life balance by offering flexible/remote work opportunities, part-time benefits, and generous PTO. We believe that each day is an opportunity to support one another, to support our clients, and to support our communities. If you feel the same, then you’ve found your future.Our MEP group in the Hartford, CT office is looking for a mechanical engineering intern, with an interest in Mechanical, Electrical, and Plumbing (MEP) fields, to work on various pro

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/15/2026

Job SummaryThe Building Electrical Group is responsible for all building electrical systems including lighting, fire protection and low voltage for our design build, industrial projects. We design and build food and beverage production facilities. Our building electrical team is involved with designing the electrical systems, calculating power loads, determining, and selecting equipment sizes, and vetting and selecting suitable vendors, suppliers, and sub-contractors. The professional will have technical responsibility for scoping, performing, and delivering multiple concurrent project assignments. His/her specific responsibilities will include, but not limited to:ResponsibilitiesDesign electrical systems for buildingpower, i.e. normal, emergency, and standby power distribution systems for

Suffield, CT 06078 • (10.4 miles) • Full Time • 9/8/2026

CNC Programmer/Prototype Machinist - LiquidPiston This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026. Employment Type: Hourly About LiquidPiston: LiquidPiston is developing advanced rotary engine technologies that redefine what is possible in power generation and propulsion. Our team designs and builds cutting-edge prototypes that push the boundaries of efficiency, performance, and size. We are seeking a highly skilled Prototype Machinist to support our rapid development and testing initiatives. Position Summary: The Prototype Machinist will be responsible for machining precision components for engine prototypes and test fixtures. This role requires strong CNC programming and machining experience, exceptional at

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/15/2026

ResponsibilitiesHandle basic issues and problems and refer more complex issues to higher-level engineerDesign and troubleshoot both software and hardware necessary for control systems utilizing PLCs for integration of manufacturing systems.Automate manufacturing processes through the use of instrumentation or controls systems.Design, diagnose, and troubleshoot network infrastructures - Ethernet, DeviceNet, AS-i, Profibus etc.Develop new PLC applications, interfaces, or embedded controlsDevelop new or modify existing set-up and commissioning of new facilities or upgrading of existing facilitiesDesign, specify, wire, and procure control panel equipment, e.g. safety circuits, I/O, networks, etc.Design, specify, and procure electrical equipment, e.g. MCCs, panelboards, transformers, etc.Specif

Suffield, CT 06078 • (10.4 miles) • Full Time • 9/4/2026

Controls Engineer – LiquidPiston Location: Bloomfield, CT | Fully onsite, 5 days per week LiquidPiston is currently located in Bloomfield, CT and will be relocating to Suffield, CT later in 2026. About LiquidPiston: LiquidPiston is an advanced propulsion technology company developing compact, high-efficiency engine and power system solutions for aerospace, defense, and commercial applications. Built around a patented rotary engine architecture, LiquidPiston is challenging conventional approaches to propulsion by developing smaller, lighter, more powerful, and more fuel-efficient systems. This is an opportunity to work on a fundamentally different engine architecture and solve controls challenges that don't have a textbook answer. Position Summary: LiquidPiston is seeking a Controls Enginee

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/2/2026

You will be a member of our mechanical department and your responsibilities will include, but not be limited to:ResponsibilitiesMay work independently or with other ME’s, depending on project sizeExecute all tasks necessary to complete the engineering on a project from conceptual design through executionPerform heating and cooling load calculationsPerform mass energy balance calculationsPerform drainage and line loss calculationsEquipment sizing and selectionDevelop Mechanical / Utility equipment and construction specificationsDevelop P&ID’s, equipment layout plans, plant / process utility piping (steam, hydronic, CA) distribution plans, andsystem detailsP&ID design & draftingSize and develop layouts for ductwork and piping plansControls functional description developmentCreate equipment s

Suffield, CT 06078 • (10.4 miles) • Full Time • 9/1/2026

Skunkwerks Engineer - LiquidPiston This role is fully onsite in Suffield, CT, five days per week. Why LiquidPiston? At LiquidPiston, you won’t be one engineer among hundreds working on a small piece of an established product. You’ll be part of a lean engineering team working on technology that is still being invented. Your work can move quickly from an idea to a drawing, from a drawing to a prototype, and from a prototype to a running engine. You’ll see the results of your engineering decisions firsthand and have the opportunity to influence the direction of the technology. The problems are difficult. The timelines are ambitious. The answers aren’t always obvious. That’s exactly what makes the work exciting. If you enjoy figuring out why something failed, building a better solution, testin

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/2/2026

Job SummaryDennis Group’s process engineers are key in our projects of designing and building food and beverage processing facilities. Process Engineers work in every aspect of a project - controls, packaging, mechanical, electrical, building system, architecture, etc., from the conceptual stages to design completion, and throughout construction. They provide expertise in flow diagrams, alterations, constraints, piping and instrumentation diagrams (P&ID), layout, install, and commissioning and start-up. Process engineers enable operational efficiencies for the food and beverage process plants of our clients. Responsibilities will include, but not be limited to:ResponsibilitiesDeveloping process design basis and select unit operationsDevelop operation specificationsCoordinate with other pro

Suffield, CT 06078 • (10.4 miles) • Full Time • 8/27/2026

Senior Engine Performance Engineer This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026. About LiquidPiston: LiquidPiston is an advanced engine development company focused on revolutionizing internal combustion technology through its innovative rotary engine design. By rethinking traditional engine architecture, LiquidPiston is developing compact, efficient, and high power-density engines for a wide range of applications. The team operates in a fast-paced, engineering-driven environment focused on innovation, collaboration, and bringing cutting-edge technology to production. Role Overview: As a Senior Engine Performance Engineer, you will play a key role in advancing the development of LiquidPiston’s rotary engine

Suffield, CT 06078 • (10.4 miles) • Full Time • 9/20/2026

LiquidPiston This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026. About LiquidPiston LiquidPiston, Inc. is reinventing the internal combustion engine. Our patented X-engine architecture is a compact, lightweight, and fuel-efficient rotary engine that operates on a novel thermodynamic cycle. With applications in defense, aerospace, robotics, and portable power, we’re developing the next generation of high-performance, compact engines for critical power systems. We are seeking a Senior Design Engineer to play a key role in the design, simulation, and development of our advanced rotary engines. This is a hands-on, high-impact engineering role ideal for someone with a deep understanding of engine systems, a passion f

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/2/2026

Job SummaryPackaging Engineers work closely with our process, controls, and building system engineers to scope, layout, install, and commission packaging equipment lines for our food and beverage industry clients. Dennis Group is a design build engineering firm and general contractor that designs and builds food and beverage processing facilities. As such, our packaging engineers are involved with defining packaging equipment project requirements, estimating packaging equipment costs, creating packaging flow diagrams, providing onsite construction support, and start-up and commissioning the packaging equipment. As a Packaging Engineer, your responsibilities will include, but not be limited to:ResponsibilitiesDesign: Create basis of design and scope of work documentsDevelop design conceptsD

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/2/2026

Job SummaryPackaging Engineers work closely with our process, controls, and building system engineers to scope, layout, install, and commission packaging equipment lines for our food and beverage industry clients. Dennis Group is a design build engineering firm and general contractor that designs and builds food and beverage processing facilities. As such, our packaging engineers are involved with defining packaging equipment project requirements, estimating packaging equipment costs, creating packaging flow diagrams, providing onsite construction support, and start-up and commissioning of the packaging equipment. As a packaging engineer, your responsibilities will include, but not be limited to:ResponsibilitiesDeveloping design concepts, estimates and functional specifications for packagi

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/2/2026

Job SummaryDennis Group’s Process Engineers are key in our projects of designing and building food and beverage processing facilities. Process Engineers work in every aspect of a project - controls, packaging, mechanical, electrical, building system, architecture, etc., from the conceptual stages to design completion, and throughout construction. They provide expertise in flow diagrams, alterations, constraints, piping and instrumentation diagrams (P&ID), layout, install, and commissioning and start-up. Process engineers enable operational efficiencies for the food and beverage process plants of our clients. Responsibilities will include, but not be limited to:ResponsibilitiesExecute all tasks necessary to complete the engineering on a project for design through execution with minimal supp

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/1/2026

His/her specific responsibilities will include, but not limited to:ResponsibilitiesDesigning electrical systems for buildingpower, i.e. normal, emergency, and standby power distribution systems for 208v, 480v, and medium voltage for industrial facilities.Execute duties on larger projects independentlyClient contact and lead engineerDocumenting all necessary calculations for the design such as short circuit, selective coordination, arc flash, generator sizing, steady state and transient voltage drops, load calculations, conductor sizing, raceway fills, etc.Maintains project document organizationManage time and meet commitmentsUnderstands Ohms Law, AC/DC, Electric and magnetic fieldsUnderstands power system theory – 3-phase vector math, power factor, symmetrical componentsUnderstands capacit

Springfield, MA 01103 • (2.7 miles) • Full Time • 8/31/2026

Job SummaryThe Building Electrical Group is responsible for all building electrical systems including lighting, fire protection and low voltage for our design build, industrial projects. We design and build food and beverage production facilities. Our building electrical team is involved with designing the electrical systems, calculating power loads, determining, and selecting equipment sizes, and vetting and selecting suitable vendors, suppliers, and sub-contractors. The professional will have technical responsibility for scoping, performing, and delivering multiple concurrent project assignments. His/her specific responsibilities will include, but not limited to:ResponsibilitiesDesigning electrical systems for buildingpower, i.e. normal, emergency, and standby power distribution systems

Springfield, MA 01103 • (2.7 miles) • Full Time • 8/31/2026

Job SummaryWe are seeking an ambitious Environmental / Industrial Wastewater Engineer to grow with our environmental engineering group. In this role you will work closely with our civil, process, mechanical, and architectural professionals to scope, permit, design, lay out, install, and commission industrial wastewater systems for our food and beverage clients.Responsibilities:Assisting project management with the development of project scope, budget, and schedule for all environmental related workConducting site audits to aid in site selection decisionsEvaluating air and wastewater quality parameters and designing an optimized treatment processPreparing process flow and piping and instrumentation diagramsSizing and specification of air and wastewater treatment processes and utilitiesProfi

Springfield, MA 01103 • (2.7 miles) • Full Time • 8/27/2026

Job SummaryDennis Group Civil Engineers focus on the land development and infrastructure for our industrial projects that involve designing and building new food and beverage process facilities. Our civil engineers have strong technical and design ability and excellent communication skills in designing land development plans, building pads, infrastructure for new buildings, landscaping, and everything from the foundation and below. Civil engineers are part of our Building Systems department and work closely with structure engineers and architects/designers. They are also involved with bid evaluation and local contractor initial contact in multiple project locations. The role is highly valuable at Dennis Group and faces engineering challenges that require strong calculation skills and for e

Springfield, MA 01103 • (2.7 miles) • Full Time • 8/27/2026

Job SummaryDennis Group Civil Engineers focus on the land development and infrastructure for our industrial projects that involve designing and building new food and beverage process facilities. Our civil engineers have strong technical and design ability and excellent communication skills in designing land development plans, building pads, infrastructure for new buildings, landscaping, and everything from the foundation and below. Civil engineers are part of our Building Systems department and work closely with structure engineers and architects/designers. They are also involved with bid evaluation and local contractor initial contact in multiple project locations. The role is highly valuable at Dennis Group and faces engineering challenges that require strong calculation skills and for e

Springfield, MA 01103 • (2.7 miles) • Full Time • 8/27/2026

Job SummaryAs a design build engineering firm and general contractor that designs and builds food and beverage processing facilities, Dennis Group’s Automation/Controls Engineers work closely with our process, packaging and building engineers to meet our clients’ expectations in startup, commissioning, and qualifying their food and beverage production facilities. The role requires regular onsite presence to ensure necessary diagnoses, troubleshooting, and operational startup of our client’s production lines, equipment, and facilities. Our automation & controls engineers are frequently facing engineering challenges in applying standard engineering techniques to design, develop, and maintain instrumentation or control systems. Both software and hardware design and troubleshooting skills and

Springfield, MA 01103 • (2.7 miles) • Full Time • 9/20/2026

Job SummaryAs a design build engineering firm and general contractor that designs and builds food and beverage processing facilities, Dennis Group’s Automation/Controls Engineers work closely with our process, packaging and building engineers to meet our clients’ expectations in startup, commissioning, and qualifying their food and beverage production facilities. The role requires regular onsite presence to ensure necessary diagnoses, troubleshooting, and operational startup of our client’s production lines, equipment, and facilities. Our Automation/Controls Engineers are frequently facing engineering challenges in applying standard engineering techniques to design, develop, and maintain instrumentation or control systems. Both software and hardware design and troubleshooting skills and ab