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Fluid Systems Engineer Jobs in Boston, MA (NOW HIRING)

Flex

Thermofluid Systems Test Engineer

Littleton, MA · On-site

$126K - $173K/yr

Design, build, instrument, and operate automated thermo-fluid test stands to characterize flow ... to design and systems engineering teams. * Support design reviews and product decisions by ...

Flex Ltd.

Thermofluid Systems Test Engineer

Littleton, MA · On-site

$126K - $173K/yr

Design, build, instrument, and operate automated thermo-fluid test stands to characterize flow ... to design and systems engineering teams. * Support design reviews and product decisions by ...

Flex

Principal Thermal Mechanical Engineer

Littleton, MA · On-site

Lead the initial design, analysis, and optimization of complex fluid systems from concept initial ... Develop and review engineering specifications, and documentation for fluid system and heat transfer ...

Flex

Principal Thermal Mechanical Engineer

Littleton, MA · On-site

Lead the initial design, analysis, and optimization of complex fluid systems from concept initial ... Develop and review engineering specifications, and documentation for fluid system and heat transfer ...

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All JobsFluid Systems Engineer JobsFluid Systems Engineer Jobs in Boston, MA

Fluid Systems Engineer information

See Boston, MA salary details

$58.1K

$138.2K

$181.4K

How much do fluid systems engineer jobs pay per year?

As of Aug 13, 2026, the average yearly pay for fluid systems engineer in Boston, MA is $138,206.00, according to ZipRecruiter salary data. Most workers in this role earn between $106,500.00 and $170,600.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the fluid systems engineer position, and why are they important?

To thrive as a Fluid Systems Engineer, a solid background in mechanical or chemical engineering, along with expertise in fluid dynamics and thermodynamics, is essential. Proficiency in using CAD software, simulation tools such as ANSYS Fluent or MATLAB, and familiarity with relevant industry standards or certifications like PE licensure are highly beneficial. Strong analytical thinking, effective communication, and problem-solving abilities enable successful collaboration with multidisciplinary teams and stakeholders. These skills ensure accurate system design, efficient troubleshooting, and safe, reliable operation of fluid systems across various industries.

What does the typical day-to-day work look like for a fluid systems engineer?

A Fluid Systems Engineer’s day often involves designing, analyzing, and optimizing systems that control the flow of liquids and gases, including reviewing project drawings, performing simulations, and conducting calculations to ensure efficiency and safety. You may collaborate closely with project managers, other engineers, and technicians to resolve technical challenges and oversee system installation and testing. Site visits to inspect current systems and attend meetings with clients or production teams are also common. This dynamic role offers variety, blending hands-on problem-solving with technical project management and teamwork across different project phases.

What does a fluid systems engineer do?

A Fluid Systems Engineer designs, analyzes, and maintains systems that control the flow of liquids and gases in various applications, such as aerospace, automotive, and industrial processes. They ensure efficient performance, safety, and regulatory compliance by using simulations, testing, and system optimization. Their work involves selecting appropriate materials, pumps, valves, and piping configurations. Additionally, they collaborate with multidisciplinary teams to integrate fluid systems into larger engineering projects.

What are the most commonly searched types of Fluid Systems Engineer jobs in Boston, MA?

The most popular types of Fluid Systems Engineer jobs in Boston, MA are:

What are popular job titles related to Fluid Systems Engineer jobs in Boston, MA?

For Fluid Systems Engineer jobs in Boston, MA, the most frequently searched job titles are:

What job categories do people searching Fluid Systems Engineer jobs in Boston, MA look for?

The top searched job categories for Fluid Systems Engineer jobs in Boston, MA are:

Fluid Systems Engineer jobs near you
Infographic showing various Fluid Systems Engineer job openings in Boston, MA as of August 2026, with employment types broken down into 90% Full Time, and 10% Contract. Highlights an 100% In-person job distribution, with an average salary of $138,206 per year, or $66.4 per hour.

Fluid System Development Engineer

Blue Water Autonomy

Lexington, MA • On-site

$77K - $100K/yr

Full-time

Medical, Dental, Vision, PTO

Re-posted 6 days ago

Job description

We are an early-stage, maritime defense technology startup backed by top tier investors. Our team is designing and building autonomous and highly producible ships that can serve multiple missions on the open ocean.
Role Summary
We're seeking a Fluid System Development Engineer to support the design, development, and test of fluid systems that enable vehicle operation and reliability (fuel, cooling, hydraulics/pneumatics, lubrication, seawater handling, and related controls-depending on platform needs). You'll help take systems from concept through requirements, layout, prototyping, and qualification-aligned with how space and aerospace teams develop flight-critical fluid systems (pumps, valves, actuators, controls).
What You'll Do
  • Support architecture and detailed design of fluid systems: schematics (P&IDs), component selection, routing/layout, mounting, and serviceability.
  • Size components and lines using first principles and simple models (pressure drop, flow rates, heat transfer) and validate assumptions with test.
  • Partner with mechanical/electrical/software teams on sensors, controls, and fault detection for fluid subsystems.
  • Create and execute development tests: leak checks, performance characterization, endurance screening, and instrumentation plans.
  • Own tight feedback loops: capture issues, propose design changes, and re-test quickly with strong documentation.
  • Support producibility: BOM rationalization, supplier engagement, assembly procedures, and verification checklists.

Who You Are
  • BS in Mechanical, Aerospace, or related engineering discipline.
  • Comfortable working with physical hardware and learning hands-on (fittings, tubing, seals, pumps/valves, instrumentation).
  • Strong fundamentals in fluids/thermo and an engineering mindset that balances performance, safety, and maintainability.
  • Clear, collaborative communicator who can translate field observations into actionable design improvements.

Nice to Haves
  • Experience with P&IDs, pressure testing, hydraulic/pneumatic components, or thermal management systems.
  • Familiarity with development programs that emphasize reliability, verification, and documentation discipline (common in aerospace/space).

What We Offer
  • Incredibly high-caliber teammates. You'll work directly with our co-founders Rylan, Scott, and Austin.
  • A fast-paced, creative working environment that offers a lot of room for ownership and growth.
  • Opportunity to join a meaningful mission that protects American and our Democracy.
  • Salary Range: $77,000 - $100,000 annual base salary (final compensation will depend on experience and skill level.
  • Startup equity options.
  • Generous PTO, medical, dental, and free vision coverage.

Must be a U.S. Person due to required access to U.S. export controlled information or facilities. By applying, you confirm that you are a U.S. Person and can provide acceptable documentation verifying your status if selected.
Blue Water Autonomy is an Equal Opportunity Employer. We comply with all applicable federal, state, and local laws governing nondiscrimination in employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by law. All employment decisions-including recruitment, hiring, promotion, compensation, benefits, and termination-are made based on qualifications, merit, and business need.

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