Solutions Engineer (Chicago)

Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy. Job Purpose The Advanced Engineer, Combustion Aerodynamics is a hands-on technical contributor to the research, testing, and development program for the KARNO generator's reactor and oxidation system. This position executes combustion aerodynamics test campaigns, analyzes experimental and simulation data, and supports development and validation of combustion hardware. The position works closely with mechanical, thermal, and performance engineering to translate combustion test data into system design decisions and supports emissions testing in connection with regulatory certification requirements. AI at Hyliion At Hyliion, AI is core to how we work. We equip every team member with leading AI tools and count on you to use them — to move faster, solve harder problems, and help us realize the full potential of KARNO technology for the world. Duties and Responsibilities Execute combustion aerodynamics test campaigns, including instrumentation setup, experiment execution, data collection, and documentation of results. Support development and validation of the reactor and oxidation system, including fuel/air mixing characterization, emissions measurement, and heat release analysis. Operate and maintain laboratory facilities used for combustion aerodynamics system development, and support expansion of lab capability as the program grows. Apply 1D reactor network models (CANTERA or CHEMKIN) to finite-rate chemistry analysis and correlate simulation predictions with experimental results. Use CFD tools (ANSYS Fluent or CFX) to support aerodynamic and thermal analysis of combustion and oxidizer geometry. Support emissions testing and data reporting

Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy. Job Purpose The Senior Systems Engineer is a key technical leader responsible for the high-level architectural design of the full KARNO generator system’s mechanical, electrical, and fluid hardware, ensuring it satisfies customer and product requirements from concept through delivery. This role owns the translation of customer and product manager inputs into detailed technical requirements and leads the engineering and validation testing effort needed to prove the system out. Working across mechanical, electrical, thermal, and fluid systems disciplines, the Senior Systems Engineer partners closely with project management, production, and manufacturing teams to keep the product on schedule, while also providing technical mentorship to less experienced members of the engineering team, with the ability to step into hands-on design work directly when needed. This role advances KARNO’s development through disciplined systems thinking, clear requirements ownership, and strong cross-functional leadership. AI at Hyliion At Hyliion, AI is core to how we work. We equip every team member with leading AI tools and count on you to use them — to move faster, solve harder problems, and help us realize the full potential of KARNO technology for the world. Duties and Responsibilities System Architecture & Design Lead and execute the high-level architectural design of the full KARNO generator system to satisfy customer requirements Make system-level design trade-offs across mechanical, electrical, thermal, and fluid subsystems Ensure architectural decisions align with performance, cost, manufacturability, and reliability goals Perform system-level assembly

Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy. Job Purpose The Engineer, Test & Validation is responsible for converting engineering and customer objectives into measured and validated results on the KARNO development team. The role covers the full test cycle: defining the test, assembling and instrumenting the hardware, executing the run, reducing the data, and presenting conclusions in technical review. Work spans KARNO Power Modules and Cores, linear generator and motor dynamometers, and component and subsystem rigs, and the resulting data directly informs program decisions. Because KARNO departs from conventional reciprocating and turbine architectures, using flameless oxidation to drive sealed helium through a thermodynamic cycle with a single magnet-carrying piston per shaft on pressurized helium bearings generating native 800 VDC, no established test methodology exists for a machine of this type. This position therefore carries significant influence over the test methods, rigs, and acceptance criteria against which KARNO is validated. AI at Hyliion At Hyliion, AI is core to how we work. We equip every team member with leading AI tools and count on you to use them — to move faster, solve harder problems, and help us realize the full potential of KARNO technology for the world. Duties and Responsibilities Operate KARNO Power Modules and Cores through startup, steady-state, step-load, load-acceptance and load-rejection, endurance, thermal cycling, and fuel-switching sequences, evaluated against defined acceptance criteria including ISO 8528 performance classes and program-specific targets. Operate and maintain linear generator and motor dynamometers, resistive and reactive l

Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy. Job Purpose The Senior Supplier Quality Engineer owns the technical health of Hyliion's precision machining supply base and serves as the senior technical authority for machined content on the KARNO Power Module. Much of the machined content that determines whether a machine runs, including tolerances, surface finishes, form and runout requirements, and sealing surfaces, is produced by external partners, some of it on additively manufactured parts. This position sets the standard for how supplier quality is practiced at Hyliion, including the qualification evidence required, the inspection methods used, and the technical judgment applied when a part is borderline. The role works in both directions: outward, building engineering-grade partnership with machining suppliers and closing the gap between what drawings require and what supplier processes can repeatably deliver; and inward, holding Product Engineering, Quality, Supply Chain, and Operations accountable for releasable drawings, defined acceptance criteria, realistic schedules, and closed feedback loops. The position carries no authority over those functions and operates through technical credibility and evidence. AI at Hyliion At Hyliion, AI is core to how we work. We equip every team member with leading AI tools and count on you to use them — to move faster, solve harder problems, and help us realize the full potential of KARNO technology for the world. Duties and Responsibilities Serve as the engineering authority for machined commodities, including turning, milling, grinding, honing and lapping, EDM, balancing, deburring and edge condition, and associated special processes incl

Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company’s primary focus is to develop distributed power generators that can operate on various fuel sources to future-proof against an ever-changing energy economy. Job Purpose The Technician, Engine Assembly is responsible for the high-accuracy assembly of Karno™ linear generator engine modules. This role supports scaling limited-production builds of a next-generation linear power generation platform. Unlike traditional rotating engines, this role requires exceptional discipline in axial alignment, stack-up control, sealing integrity, and cleanliness, as well as close collaboration with engineering and quality during design maturation, testing, and iteration. Duties and Responsibilities Linear Engine & Genset Assembly Assemble Karno™ linear engine subassemblies , including: Reactor, Heater and Chillers Seal systems (dynamic, static, high-temperature, and gas sealing) Linear generator interfaces (stator/translator interfaces, housings) Structural frames and alignment-critical assemblies Perform axial and concentric alignment of linear components to tight tolerances. Execute precision stack-up controlled assemblies where tolerance accumulation directly impacts efficiency and reliability. Apply torque, preload, and fastening sequences per controlled build instructions. Sealing, Cleanliness & Handling Install and verify critical sealing interfaces supporting: High-pressure, high-heat environments Thermal cycling and dynamic motion Maintain engine-grade cleanliness standards, including: FOD prevention Proper lubrication and material handling Protection of sealing surfaces and linear bearing interfaces Quality & Process Compliance Follow detailed work instructions, engineering drawings, torque tables, and build travelers. Perform in-process inspections and document critical characteristics. Ensure

At ClickUp, we're building the future of work: the first truly converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI. We are an AI-native company. Every team member is expected to leverage AI daily, and we evaluate AI fluency as part of our hiring process. Join us and help redefine what's possible. 🚀 This is a once-in-a-lifetime opportunity to join a hyper-growth startup focused on saving people time and making the world more productive! ClickUp is looking for a Strategic Solutions Engineer to serve as a technical partner to our Sales and Success orgs for bringing in net new customers, expanding existing accounts, and accelerating our revenue growth. The ideal candidate is a strong strategic thinker, skilled presenter, and has enough technical aptitude to figure out solutions for any technical challenges clients experience. Teamwork is vital to how ClickUp operates and a significant portion of your responsibilities will include working closely with Managers to understand and coordinate team needs. You should be able to work independently with little supervision, and also enjoy a fast paced and collaborative work environment. It is important that you are able to manage a range of tasks and prioritize their responsibilities, and meet deadlines with urgency and optimism. The Role: Partner with sales and success to deliver technical presentations that explain our products and integrations for prospective and current clients. Design, develop, deploy and manage customer-specific proof of value (PoV) projects. Build custom reports and dynamic dashboards for prospective clients' management teams. Assist with the functional and technical elements of RFPs. Stay current on new feature releases and maintain updated demo spaces for sales. This role will support customers across the Pacific Northwest Qualifications: This is a hybrid role based in the Central U.S., with a strong preference for candidates within r