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Senior Software Simulation Engineer

Hermeus · Los Angeles, CA · posted 32 days ago

In short: Senior Software Simulation Engineer at Hermeus in Los Angeles, CA, posted 32 days ago.

By AtiveSite · Published 07/11/2026 · Updated 10/11/2026 · Every figure is linked to its source below.

Hermeusemployer

Los Angeles, CAlocation

Software engineeringsub-niche

32 days agoposted

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The job

LIVE Employer public job feed (private-sector employer) Source: the employer's public careers feed · Data: listed 2026-10-09

Employer	Hermeus
Location	Los Angeles, California
Field	Technology › Software engineering
Level	not stated
Source category	Flight Software, Engineering
Posted	2026-10-09 (32 days ago)
Work arrangement	On-site at the location listed
Pay	Not published in the source listing

Job description

Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.

About The Role:

We are seeking a highly motivated and experienced Senior Software Simulation Engineer to join Hermeus, a hypersonic aircraft startup company. As a Senior Software Simulation Engineer, you will be responsible for developing and deploying real-time simulation environments that support the design, verification, and validation of aerospace flight control and avionics systems. Leveraging Model-Based Design (MBD) principles, you will use MATLAB/Simulink and automated code generation tools to translate dynamic system models into executable real-time code for Hardware-in-the-Loop (HIL) and Software-in-the-Loop (SIL) testing. This role bridges the gap between control system design and embedded software implementation, ensuring accurate representation of aircraft dynamics and system behavior under simulated flight conditions. You will collaborate with multidisciplinary teams to integrate models with real-time targets, optimize simulation performance, and contribute to the certification and reliability of flight-critical systems. Ideal candidates will have a solid understanding of aerospace systems, control theory, and real-time simulation platforms, along with hands-on experience in model-based code generation, HIL development, and test automation within safety-critical environments.

Responsibilities

Develop and maintain real-time simulation environments for flight control, avionics, and aircraft systems.

Build and support SIL and HIL test environments for flight software verification.

Use MATLAB/Simulink and Model-Based Design workflows to create models and generate real-time code.

Integrate aircraft dynamics, controls, sensors, actuators, and avionics models into simulation environments.

Connect models with real-time targets, embedded software, and hardware interfaces.

Improve simulation performance, timing, fidelity, and reliability.

Create automated test scripts and tools to support repeatable validation.

Work closely with GNC, flight software, avionics, systems, and test teams to debug and validate system behavior.

Support documentation, requirements traceability, and verification activities for flight-critical systems.

Requirements:

Bachelor’s degree in Aerospace Engineering, Electrical Engineering, Computer Engineering, Computer Science, Mechanical Engineering, or related field.

5+ years of experience in simulation, controls, embedded software, or real-time test environments.

Hands-on experience with MATLAB, Simulink, and Model-Based Design.

Experience with code generation tools such as Simulink Coder or Embedded Coder.

Understanding of aircraft dynamics, control systems, avionics, or embedded aerospace systems.

Experience with SIL, HIL, or real-time simulation environments.

Proficiency in C/C++, Python, or similar programming languages.

Strong debugging skills across software, models, and hardware interfaces.

Ability to work across teams in a fast-paced engineering environment

Preferred Skills and Experience:

Experience with real-time platforms such as Speedgoat, dSPACE, NI VeriStand, or OPAL-RT.

Experience supporting flight controls, GNC, avionics, autonomy, or aircraft systems.

Familiarity with interfaces such as CAN, Ethernet, ARINC 429, MIL-STD-1553, RS-422, or serial.

Experience with automated testing, CI/CD, Git, or software configuration management.

Familiarity with safety-critical aerospace standards such as DO-178C, DO-331, or DO-254.

Experience integrating simulation environments with flight software or test hardware.

Background in aircraft, UAVs, spacecraft, defense systems, or other complex aerospace platforms.

Strong ownership mindset and ability to build practical tools that help teams test and iterate quickly.

The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.

At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.

Benefits:

Health & Wellness: 100% employer-paid healthcare and pet insurance
Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
Office Perks: Weekly paid office lunches and fully stocked breakrooms

U.S. EXPORT CONTROL COMPLIANCE STATUS The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending. EQUAL OPPORTUNITY Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

#LI-JC3

Explore around this job

Field: Technology Sub-niche: Software engineering All jobs at Hermeus Jobs in California Jobs in Los Angeles, CA Los Angeles city guide California state guide Los Angeles County economy

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About the role

This is a — role in the Technology field (Software engineering) at Hermeus.

We could not match this job title to one occupation in the official wage statistics, so no pay estimate is shown. Pay is not in the source listing; ask the employer for the range and compare in the 240 job niches.

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Gross salary a year Filing State income tax rate %

Estimate for a wage earner: 2026 federal brackets and standard deduction (IRS), Social Security 6.2% up to $184,500, Medicare 1.45% (+0.9% above $200,000 single / $250,000 married), and a state rate you set; set your own state tax rate. It ignores credits, pre-tax deductions, local taxes and benefits. Sources: IRS: tax year 2026 inflation adjustments · SSA wage base per Federal Register notice 2025-19763.

How to prepare and behave

This is editorial guidance, not information from the employer.

Read the whole description and match your examples to its requirements; use the same words the posting uses where they are true for you.
Research the employer before the interview: what it does, who its customers are and recent news; prepare two or three questions about the work.
Arrive early (or log in early for a video call), dress one step above the daily dress code, and test your camera and audio beforehand.
Answer with short stories: the situation, what you did and the result. Give numbers when you have them and never invent them.
Be honest about gaps; say what you did to learn and how fast you can close them.
Ask about the team, the first 90 days, how success is measured and the schedule; do not open with salary and time off.
When pay comes up, know the market range for the occupation and your lowest acceptable offer before you answer; ask for the full package in writing.
Send a short thank-you message within a day, mentioning one thing you discussed.
Have code, data work or projects you can show, and be ready to think aloud: many technical interviews test how you reason, not only the answer.

Know your rights as a candidate and an employee:

The city

The job is in Los Angeles, CA. Below is what the official statistics say about living and working there.

How Los Angeles compares. Among the 145 largest places in California, Los Angeles is #1 by population, #141 for homeownership (#1 = highest), #121 for household income (#1 = highest), #39 for rent (#1 = cheapest). Its county, Los Angeles County, is #7 of 58 counties for average pay ($83,554).

The place in numbers

Los Angeles has 3,857,263 residents (ACS 2020–2024), about 9.8% of the population of California. It covers 471 square miles of land, which works out to roughly 8,198 people per square mile. The median age is 37.2, about the same as the state median (37.2 against 37.9).

Housing

The median gross rent is $1,933 a month (rent plus utilities), 5% below the state median ($1,933 against $2,036). Over a year that is 28.3% of the median household income. US housing guidance treats housing as affordable when it takes 30% of income or less, so the typical household is under that line. The median home value is $921,200, which is 11.2 times the median household income ($81,939); a ratio above 5 usually means buying is out of reach without savings or a second income. 36.0% of households own their home, 36% below the state average (36.0% against 55.9%). A low ownership share points to a rental-heavy market with more apartments and shorter stays.

Work and pay

The Los Angeles-Long Beach-Anaheim, CA metropolitan area has 6,271,560 jobs in the BLS wage survey, and the median pay across all occupations is $55,850 a year, 10% above the national median ($55,850 against $50,980). The biggest occupation groups are office and administrative support (702,480 jobs, median $52,710); food preparation and serving related (588,660 jobs, median $38,460); healthcare support (537,460 jobs, median $35,630). The area is most specialised in arts, design, entertainment, sports, and media (2.2 times) and healthcare support (1.7 times), where the share of workers is well above the national share. The best-paying groups with at least 5,000 jobs are management ($136,490) and legal ($128,110). In 2026M09 the unemployment rate of Los Angeles County was 4.5%. 66.4% of residents aged 16 and over are in the labour force. The city lies in Los Angeles County; its jobs, pay by industry and GDP are on the county page.

Getting around

Among workers, 59.8% drive alone, 6.1% use public transit, 3.2% walk, 19.5% work from home. 22.2% of workers commute 45 minutes or more, 14% above the state average (22.2% against 19.4%).

People and education

38.5% of adults aged 25 and over hold a bachelor's degree or higher, 4% above the state share (38.5% against 37.1%). 35.7% of residents were born outside the United States, 32% above the state share (35.7% against 27.0%). The poverty rate is 16.6%, 38% above the state rate (16.6% against 12.0%).

Climate

The warmest month is Aug, averaging 75°F (23.9°C), and the coolest is Dec at 53°F (11.8°C). About 332 mm (13 inches) of precipitation falls in a year; Feb is the wettest month (75 mm) and Jun the driest (1 mm). These values come from NASA satellite-based climatology on a grid of about 50 km, so they describe the wider area, not a weather station in the city.

Nearby cities to compare

Closest cities in this guide: Santa Monica (5 miles, rent 24% higher); Inglewood (6 miles, rent 8% lower); Hawthorne (8 miles, rent 8% lower); Burbank (13 miles, rent 13% higher). Rent differences are against Los Angeles; use the Compare tab to put any two cities side by side.

Full guide to Los Angeles →California guide All jobs in Los Angeles

Official links for Los Angeles

These links go to official sources and open in a new window. The first one is the government's or company's own site as listed in Wikidata (property "official website"); check it before relying on it.

Where to live

CITY Official statistics Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year (via Census Reporter) · Data: ACS 2020–2024

Places within 50 miles (straight line) of Los Angeles, CA that have a guide, with what living there costs. No pay estimate is shown because the title did not match one occupation.

Sort:

Place ⇅	Distance from the job city ⇅	Median rent ⇅	Median home value ⇅	Median household income ⇅	Commute 45+ min ⇅	Rent as % of occupation pay ⇅	Open jobs there ⇅
Los Angeles, CA	0 mi	$1,933	$921,200	$81,939	22.2%	n/a	Jobs
Santa Monica, CA	5 mi	$2,402	$1,755,500	$114,885	14.1%	n/a	Jobs
Inglewood, CA	6 mi	$1,787	$792,800	$72,750	22.6%	n/a	—
Hawthorne, CA	8 mi	$1,782	$863,400	$75,848	18.8%	n/a	Jobs
Burbank, CA	13 mi	$2,192	$1,089,100	$97,082	16.6%	n/a	Jobs
Torrance, CA	13 mi	$2,280	$1,074,700	$116,217	17.5%	n/a	Jobs
South Gate, CA	14 mi	$1,531	$636,300	$74,571	23.7%	n/a	—
Compton, CA	14 mi	$1,664	$580,200	$78,465	19.2%	n/a	Jobs
East Los Angeles, CA	14 mi	$1,494	$643,100	$68,741	21.9%	n/a	—
Glendale, CA	15 mi	$2,182	$1,102,300	$88,393	16.9%	n/a	Jobs
Carson, CA	15 mi	$1,956	$704,400	$108,703	17.4%	n/a	—
Alhambra, CA	16 mi	$1,939	$857,800	$88,024	23.0%	n/a	—
Downey, CA	17 mi	$1,937	$796,600	$90,699	23.6%	n/a	—
Pasadena, CA	18 mi	$2,265	$1,093,300	$105,192	18.3%	n/a	Jobs
Bellflower, CA	19 mi	$1,830	$705,700	$78,722	20.3%	n/a	—
Norwalk, CA	20 mi	$2,090	$644,700	$100,085	21.9%	n/a	—
Lakewood, CA	20 mi	$2,347	$827,200	$119,177	20.4%	n/a	—
Long Beach, CA	22 mi	$1,871	$806,600	$87,430	21.0%	n/a	Jobs
El Monte, CA	22 mi	$1,736	$644,000	$68,030	18.3%	n/a	—
Whittier, CA	23 mi	$1,906	$822,600	$97,201	28.1%	n/a	—

Career paths

We could not match this title to one occupation, so here are the other sub-niches in Technology, where your skills may carry over:

Cybersecurity (762) Data, analytics and AI (3719) Cloud, IT and infrastructure (1147) Product management (927)

Distances

CITY Calculation (straight line) Source: U.S. Census Bureau Gazetteer (coordinates) · Data: 2024

How far Los Angeles, CA is from the 20 largest US cities, in straight-line miles (not driving distance). Click a column to sort.

Sort:

From ⇅	Straight-line distance (miles) ⇅	Population of that city ⇅
Los Angeles, CA	0 mi	3,857,263
San Diego, CA	111 mi	1,389,526
San Jose, CA	296 mi	990,138
San Francisco, CA	364 mi	830,235
Phoenix, AZ	364 mi	1,642,323
Denver, CO	845 mi	718,877
Seattle, WA	962 mi	754,195
Oklahoma City, OK	1,188 mi	697,125
San Antonio, TX	1,208 mi	1,479,835
Fort Worth, TX	1,216 mi	963,194
Austin, TX	1,233 mi	979,539
Dallas, TX	1,249 mi	1,307,930
Houston, TX	1,379 mi	2,328,253
Chicago, IL	1,749 mi	2,711,226
Indianapolis, IN	1,816 mi	885,860
Columbus, OH	1,984 mi	914,802
Charlotte, NC	2,126 mi	903,844
Jacksonville, FL	2,153 mi	977,670
Philadelphia, PA	2,399 mi	1,579,706
New York, NY	2,459 mi	8,483,844

Nearby cities with open jobs (within 120 miles)

Sort:

City ⇅	Straight-line distance ⇅	Open jobs ⇅
Culver City, CA	1 mi	12
Beverly Hills, CA	4 mi	5
El Segundo, CA	8 mi	202
Encino, CA	11 mi	4
Huntington Park, CA	11 mi	2
Burbank, CA	13 mi	6
Compton, CA	14 mi	4
Costa Mesa, CA	38 mi	21
Anaheim, CA	39 mi	52
Newport Beach, CA	42 mi	2
Irvine, CA	44 mi	51
Carlsbad, CA	89 mi	4
Bakersfield, CA	99 mi	30
San Diego, CA	111 mi	481
El Cajon, CA	119 mi	1

The employer

Hermeus is the employer in this listing. See all its open jobs here →

We do not hold headcount or revenue for this employer. Check its careers site and, if it is listed on a stock exchange, its public filings (SEC EDGAR search).

What it is like to work at a company (culture, schedules, benefits) is not in the source data, so we do not describe it. Read the description and ask the questions under "How to prepare".

Other open jobs at Hermeus

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FAQ

What is the Senior Software Simulation Engineer job at Hermeus?

A private-sector role in technology (software engineering) listed 32 days ago. The full description is on this page and on the employer's page.

Where is this job?

Los Angeles, CA.

How do I apply?

Use the "View this job and apply on the employer's page" button. AtiveSite does not receive applications.

How much does it pay?

The listing does not publish pay, and we could not match the title to one official occupation.

What is the cost of living there?

Median rent in Los Angeles is $1,933 a month and median household income $81,939 (ACS 2020–2024).

How old is this listing?

It was posted on 2026-10-09 (32 days ago). Jobs older than 90 days are not shown.

Are there similar jobs?

Yes: browse software engineering jobs in California.

Sources and terms

Job data: Hermeus careers page public feed (listing dated 2026-10-09). The job disappears from this site when it disappears from the source.
Wages and projections: BLS OEWS (May 2025) and Employment Projections 2025–35.
City and county figures: Census Bureau ACS 2020–2024, BEA, BLS QCEW and LAUS, NASA POWER climatology; distances from Census Gazetteer coordinates.

AtiveSite is not affiliated with or endorsed by the employer or any government agency, and does not process applications. Verify every detail with the employer before acting.

Sources

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