Northrop Grumman is hiring engineers who speak isotope and propellant in the same breath

The DARPA Radiovoltaic Bet: Powering Sensors Without Batteries

In June 2026, DARPA awarded $3.37 million to a team led by Morgan State University under its Rads to Watts program. Business Wire reported the award, noting the project, called SYMPHONEE, brings together Northrop Grumman, Pacific Northwest National Laboratory, Project Omega, Applied Research Associates, and Widetronix to develop radiovoltaic devices that convert energy from radioisotope decay, specifically Strontium-90, directly into electricity.

The device stacks silicon carbide PIN junctions in a multi-layer architecture designed to tolerate high-energy beta radiation while maintaining conversion efficiency. The team plans to source isotopes from recycled nuclear fuel and Cold War-era waste streams, converting material the government pays to store into a power supply designed to operate for decades without refueling. The program targets significant improvements in power density (watts per kilogram) over existing radiovoltaic technologies, though specific benchmarks have not been published.

Morgan State's Professor Michael Spencer, the project's technical lead, said the team is "pushing the boundaries of radiovoltaic technology, developing high-power, long-life systems that were not previously achievable." Pacific Northwest National Laboratory hosts the radiation-effects testing. Project Omega contributes isotope-recovery technology from its molten-salt electrochemical recycling platform. Dr. Stafford Sheehan, the company's CEO, said the program demonstrates how recovered isotopes can "power critical systems for years, without needing to manage the logistics around constant battery replacement."

Northrop Grumman leads simulation, characterization, and survivability analysis, using AI-driven modeling and high-performance computing to accelerate design iterations. Matt Hicks, director of foundry, advanced packaging and test at Northrop Grumman, called the work a path to "resilient, long-duration energy solutions that can operate where traditional systems cannot."

For Northrop Grumman, the contract sits inside a broader pattern. The company already builds solid-propellant rocket motors in Rocket Center, West Virginia, and has been publicly pushing to expand that capacity. The radiovoltaic work adds a nuclear-power-systems thread to the same workforce pipeline, and the two efforts, as the next section shows, are converging in ways that create hiring demand neither program would generate alone.

Solid-Rocket Production: Northrop Says Industry Is Ready to Scale

Northrop Grumman delivered roughly 13,000 solid rocket motors in 2024 and plans to reach about 25,000 annually by 2029. The question isn't whether capacity exists — it's whether the Pentagon will commit to the procurement timelines that justify the supply-chain investments behind those numbers.

James Kalberer, vice president of the company's propulsion systems business unit, told SpaceNews that annual appropriations and short-duration contracts make it difficult for Northrop's suppliers, the second- and third-tier vendors producing nozzles, cases, insulation, and propellant chemicals, to commit to factory expansions. Northrop has invested more than $1 billion in solid-rocket motor production capacity over the past several years, and over $2 billion across its broader munitions and SRM businesses during that period. The company says it currently produces 30 million pounds of propellant per year and can scale to 50 million without major new capital builds.

"We have available capacity today," Kalberer said. But capacity without multiyear commitment risks sitting idle. The Pentagon has started using multiyear munitions procurement authority and direct supplier investments, including a $1 billion injection into L3Harris's missile propulsion unit. Kalberer declined to say whether Northrop would welcome a similar direct investment.

The demand signal is clearest on the GMLRS line. Gordon LoPresti, senior director of propulsion systems and controls at Northrop Grumman, said the company produced 5,000 to 6,000 rocket motors per year for Lockheed Martin's Guided Multiple Launch Rocket System over the last four years. The Pentagon's push to replace weapons shipped to Ukraine and rebuild stockpiles has pushed that target to between 10,000 and 14,000 annually. Northrop has spent the last six years tripling capacity at its West Virginia and Maryland tactical-motor sites and is on track to double capacity at its Utah facility, which builds larger motors for programs like the future Sentinel ICBM, within a couple of years.

The company's internally funded SMART Demo program, now in its fifth year, has cut the time to qualify new materials and suppliers from as many as three years to between 12 and 18 months. A January 2026 test of the Bombardment Attack Missile Motor, a 29-inch-diameter motor with a next-generation carbon-fiber case, went from design to firing in under a year.

The workforce implications follow directly from these timelines. Northrop's board shows active postings for propulsion engineers at Rocket Center, West Virginia, and contract administrators at the same site. That is the hiring cadence required to staff a production base that needs to roughly double output within five years.

Where Nuclear Batteries and Energetic Systems Overlap

Northrop Grumman's DARPA radiovoltaic contract and its solid-rocket motor scale-up usually get treated as separate stories: one a research-stage power source for persistent sensors, the other a production push driven by Pentagon demand. But the hiring picture tells a different story. The two programs are converging on a single, unusual workforce need: engineers who understand both nuclear-grade power sources and energetic or hazardous manufacturing.

The technical domain SYMPHONEE occupies, converting radioactive decay into long-duration electrical power for unattended defense platforms, demands a specific blend of nuclear engineering, materials science, and radiation-hardened electronics. These are not skills the defense industrial base has had to scale in decades. Deloitte's 2026 Aerospace and Defense Industry Outlook notes that 25% of the sector's workforce is at or beyond retirement age. Nuclear engineering roles in defense command salaries from $71,000 at entry level to $155,000 for senior positions (per JOBSwithDOD's career guide), figures reflecting a market where supply has been flat for years.

On the other side, Northrop's Elkton, Maryland facility, its Propulsion Systems and Controls hub, which has produced solid-propellant rocket motors since 1948, is actively hiring energetics manufacturing engineers at levels 2 and 3. The work involves handling and processing hazardous propellant materials, a discipline governed by strict safety protocols and specialized process knowledge that sits in its own silo within defense manufacturing.

The convergence happens where these two worlds overlap. A radiovoltaic power source embedded in a solid-rocket system (a long-endurance sensor platform, a persistent munitions guidance module) requires someone who understands radiation shielding and decay-heat management and the energetic materials that surround the power source. That person needs to know why a particular isotope's gamma spectrum matters for propellant aging, and why a grain-geometry change in the solid motor affects the thermal environment the nuclear battery sees.

This is not a theoretical staffing problem. LinkedIn's defense-engineering job listings show active demand for nuclear engineers, propulsion engineers, and energetics manufacturing engineers across the same contractor base (Northrop Grumman, Lockheed Martin, Johns Hopkins Applied Physics Laboratory), often in the same metropolitan corridors.

What Northrop is building, quietly, is a workforce that can operate at the intersection of two disciplines the defense industry has historically kept apart. The radiovoltaic project provides the nuclear and radiation expertise. The solid-rocket scale-up provides the energetic-manufacturing base. The engineers who can work across both, who can speak the language of isotope selection and propellant chemistry in the same meeting, are the ones the U.S. defense industrial base has never needed before, and the ones it now has to find or grow from scratch.

The M1147 AMP Round: A Five-Year Demand Signal

In June 2026, Northrop Grumman secured a five-year U.S. Army contract valued at up to $884.9 million to produce the M1147 Advanced Multi-Purpose 120mm tank round. This is not a research project. It is a production mandate. The framework agreement runs through March 2031 and commits Northrop to sustained manufacturing of a munition that consolidates four legacy Abrams ammunition types, the M830 HEAT, M830A1 MPAT, M908 Obstacle Reduction, and M1028 Canister, into a single programmable round.

Its programmable fuze lets tank crews select point detonation, point-detonation delay, or airburst modes through the Abrams fire-control system before firing. The Army approved the round for full-rate production in December 2024, moving it from low-rate initial production into the kind of sustained procurement that justifies dedicated production lines and the staffing that goes with them.

The contract is a hybrid incorporating cost-plus-fixed-fee, firm-fixed-price, and fixed-price-with-economic-price-adjustment provisions. Army Contracting Command in Newark, New Jersey, will issue individual delivery orders over the five-year period. Dave Fine, Northrop Grumman's vice president of armament systems, said the round "meets the Army's needs for efficiency and readiness" while enhancing Abrams lethality. The company has more than 45 years of experience in large-caliber ammunition production and says it has delivered more than five million tactical and training rounds to U.S. and allied forces.

The production workforce this contract requires spans multiple sites. For production engineers, quality technicians, and supply-chain staff in the munitions sector, this is the type of program that converts temporary hiring into permanent workforce expansion.

Anduril, Lockheed, and the New Defense Labor Market

Northrop Grumman is not hiring into a vacuum. The same Southern California corridors that feed its solid-rocket and radiovoltaic programs are absorbing defense workers at a rate the region hasn't seen since the Cold War, and the competition for those workers is now measured in billion-dollar campus commitments.

Anduril Industries announced in January 2026 it invested $1 billion to build a 1.18-million-square-foot campus across Long Beach and Lakewood, roughly 30 minutes from its Costa Mesa headquarters. The facility, six buildings combining 750,000 square feet of office space with 435,000 square feet of industrial R&D, is expected to come online in mid-2027 and will support approximately 5,500 direct jobs. The company ended 2025 with about 7,000 employees across 35 locations. Co-founder Matt Grimm said the Long Beach site is designed to give teams access to design labs, machine shops, test chambers, and prototype manufacturing under one roof.

The hiring profile overlaps Northrop's directly: software engineers, flight-test teams, and research specialists in autonomous systems and energetic hardware. Anduril's board shows 151 roles added in the past week, including software positions in undersea dominance and mission-software engineering with salary ranges from $166,000 to $253,000.

"The talent exists around Long Beach and the neighboring communities of folks who are just world-class experts in the aerospace sectors is truly, truly remarkable," Grimm told the Los Angeles Times.

Lockheed Martin is pulling from the same labor pool, though from a different geography. The company holds a $1.36 billion contract modification for the Conventional Prompt Strike hypersonic weapon program, with work spanning Colorado, California, Utah, and Alabama. In Courtland, Alabama, Lockheed opened a 65,000-square-foot Missile Assembly Building 4 in 2021 focused on hypersonic strike technologies. The program covers engineering development, systems integration, long-lead materials, testing, and specialized tooling, the kind of work that requires cleared engineers with propulsion and systems backgrounds, exactly the profiles Northrop is recruiting for its solid-rocket motor scale-up.

The table below summarizes the hiring and investment picture across the three firms:

LinkedIn's defense-engineering job listings show roughly 17,000 open positions across the United States. The result is a labor market where a cleared propulsion engineer or a senior systems engineer with a Secret clearance can field offers from multiple primes and well-funded startups simultaneously.

For engineers weighing offers, the calculus is no longer just about the mission. It is about which company's hiring timeline, clearance pipeline, and location strategy align with the next five years of a career. The defense labor market has not been this tight in a generation.

What the Roles Actually Look Like: Skills, Clearances, and Pay

Northrop Grumman's hiring push spans three overlapping production lines: the DARPA radiovoltaic power project, solid-rocket motor scale-up, and the M1147 AMP round. The roles demand a mix of nuclear-grade engineering discipline and hands-on energetic-systems manufacturing experience that few candidates hold simultaneously.

Propulsion and energetic-systems roles sit at the center of the build-out. The company's board lists an Engineer Propulsion Level 2 position at Rocket Center, West Virginia, with a posted salary band of roughly $79,300 to $118,900 a year. These roles typically require a bachelor's degree in mechanical, aerospace, or chemical engineering; familiarity with solid-propellant processing, cure monitoring, and static-fire test protocols; and the ability to work within explosive-safety quantity-distance constraints on the production floor. A Secret clearance is the minimum; many programs require Top Secret.

Process and manufacturing engineers, the people who design the tooling, scale the reactor runs, and keep hazardous-material lines running, are in parallel demand. Glassdoor data from 65 submitted salaries puts the average Northrop Grumman process engineer at about $122,709 annually, with a range from $96,717 at the 25th percentile to $157,590 at the 75th. Indeed's broader dataset of 190 job postings lands closer to $97,625, reflecting wider seniority bands. These roles generally ask for a BS in chemical, mechanical, or materials engineering and experience with statistical process control in regulated or hazardous environments.

Electrical and systems engineers supporting the radiovoltaic program face a different bar. The work involves radioisotope power-source integration, low-power sensor interfaces, and radiation-hardened electronics. PayScale's figures for Northrop Grumman electrical engineers average $98,435, with a range from $77,000 to $133,000. Principal systems engineers, the integration leads who tie the nuclear-battery output to the platform's power-management architecture, average $118,704. These roles almost universally require an active Secret or Top Secret clearance, and a master's degree moves candidates toward the top of the band.

Technician and lab roles form the production backbone. Northrop's lab technician median sits at about $82,000 on Levels.fyi, while Rocket Center postings for supply-chain and production coordinators start in the $40,700 to $67,900 range. These positions often require an associate's degree or equivalent military experience, a Secret clearance, and hazmat or radiological-handling training.

Across all these roles, the common clearance floor is Secret; the radiovoltaic and propulsion programs push that to Top Secret/Sensitive Compartment Information. Candidates without clearance can still apply, but the sponsorship timeline adds months to the hiring cycle, which is why Northrop's board emphasizes cleared-ready applicants for its most time-sensitive production lines.

The Readiness Pivot and What Comes Next

The Pentagon is trying to rewire how it buys, builds, and staffs for a conflict it might have to fight within a few years. Northrop Grumman's radiovoltaic project and solid-rocket scale-up are early evidence of that shift. They are not the whole of it.

The Department of War's November 2025 Acquisition Transformation Strategy, produced under Executive Order 14265, lays out the scope of the overhaul in blunt language. The acquisition system must move from "a culture of compliance to one of speed and execution." The industrial base must be put on a "wartime footing." The strategy calls for longer, more stable contracts so companies will invest in capacity; for direct-to-supplier relationships that bypass prime-contractor overhead; for slashing the Federal Acquisition Regulation to "only what is absolutely vital."

This time, the demand signal is different. The 2025 National Security Strategy frames the threat in terms the Cold War generation would recognize: a coalition of nuclear-armed adversaries (China, Russia, Iran, North Korea) that are "interlocked through a series of diplomatic, economic, and security agreements" and that "collaborate in their defense-industrial establishments." The Defense Science Board's February 2025 report on the 21st-century industrial base goes further, arguing that the U.S. no longer has the standalone manufacturing dominance it had in World War II and must plan for a "National Security Industrial Base" that includes allies and commercial industry as core elements, not afterthoughts.

CSIS analysis of "wartime footing" puts numbers to the gap. The U.S. spent 3.4% of GDP on defense in 2024. Getting to 5%, the level the Hague Commitment asks of NATO allies by 2035, would mean roughly $1.5 trillion in annual defense spending, a figure the Trump administration has signaled could appear in the FY2027 request. Russia is spending an estimated 7.1% of GDP. Ukraine is at 34%. China's official figure is 1.7%, but analysts broadly agree the real number is substantially higher once civil-military fusion spending is included. The Reagan Institute's March 2026 National Security Innovation Base report card found that despite the rhetoric, awards to nontraditional defense companies still make up less than 1% of total DOD contracts. "We see building blocks, but we're not there yet," the institute's Washington director said.

That gap between signal and execution is where Northrop Grumman's workforce strategy becomes a useful case study. The company is not waiting for the acquisition system to finish reforming. It is hiring now, for radiovoltaic power engineers who understand nuclear-grade materials, for solid-rocket motor production technicians, for ammunition-plant staff across a five-year M1147 contract. Anduril, the most aggressive of the new defense primes, added 151 roles in the same period, with senior software-engineer positions paying up to $253,000.

Whether the overhaul sticks depends on whether Congress reauthorizes the Defense production Act (which lapsed in September 2025), whether the FY2027 budget actually reaches $1.5 trillion, and whether the Pentagon can follow through on its promise to award longer, more stable contracts that give companies the confidence to invest. The Ukraine war has already shown what happens when it doesn't: Russia is producing 4.5 million artillery rounds per year, and the U.S. is still scaling toward 100,000 rounds per month. The industrial base Northrop Grumman is building, and the workforce it is hiring to staff it, is the Pentagon's bet that the next conflict won't give it twenty years to catch up.

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