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Added 44 mins ago
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Principal Software Engineer/Developer
Fidelity Technology Group, LLC
United States
- $134,868 to $166,000 USD / year
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing and delivering user interfaces (UIs) through…
Added 44 mins ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Durham, NC
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing, coding, and implementing high-volume brokerage…
Added 44 mins ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Durham, NC
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing and building modernized cloud-based applications…
Added 44 mins ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Merrimack, NH
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing, developing and supporting backend systems using…
Added 44 mins ago
Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) developing and maintaining Web applications using Java and…
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Principal Software Engineer/Developer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) developing and maintaining scalable solutions using Kafka…
Added 44 mins ago
Principal Cloud Engineer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Cloud Engineer (or closely related occupation) performing cloud-native software development, infrastructure-as-code…
Added 44 mins ago
Principal Cloud Engineer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal Cloud Engineer (or closely related occupation) implementing continuous automation for AWS cloud workloads using…
Added 44 mins ago
Principal AI/ML Engineer
Fidelity Technology Group, LLC
Westlake, TX
…education equivalent) and five (5) years of experience as a Principal AI/ML Engineer (or closely related occupation) executing cloud computing functions for distributed systems, including…
Added 1 hour ago
FM
Principal Engineer AIX and Cloud
Fresenius Medical Care
Waltham, MA
- $117,000 to $196,000 USD / year
The ideal candidate is an experienced infrastructure engineer who serves as the architectural owner, technical authority, and highest-level escalation point for the AIX platform running on…
Added 1 hour ago
AI Engineer 5 (Gen AI Platform Services: Agentic AI, Guardrails, Evaluations)
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Cambridge, MA
Design, develop, test, deploy, and support AI software components including foundation model training, large language model inference, agents and multi-agent workflows, similarity search,…
Added 1 hour ago
Senior Principal Engineer - R&D Digital
J&J Family of Companies
Boston, MA
…for complex, multi-disciplinary robotics projects. The Senior Principal Engineer will serve as the technical owner for robotic-enabled joint solutions, driving and supporting system-level…
Added 1 hour ago
Principal Electrical Engineer
QinetiQ
Devens, MA
As a Principal Electrical Engineer at QinetiQ, you will lead hands-on design, build, and troubleshooting of mission-critical electronic systems for defense customers. Your work will span…
Added 1 hour ago
Principal Electrical Engineer
QinetiQ
Devens, MA
As a Principal Electrical Engineer at QinetiQ, you will lead hands-on design, build, and troubleshooting of mission-critical electronic systems for defense customers. Your work will span…
Added 1 hour ago
Senior Principal Systems Engineer (ONSITE)
Collins Aerospace
Marlborough, MA
…Strategic Communications Team is seeking an experienced Senior Principal Systems Engineer in a role committed to creating creative and cost-effective solutions for our ground and airborne…
Added 1 hour ago
Principal Systems Engineer (ONSITE)
Collins Aerospace
Marlborough, MA
…The Strategic Communications team is seeking an experienced Principal Systems Engineers in a role committed to creating creative and cost-effective solutions for our ground and airborne…
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Principal Software Engineer
Candela Corporation
Marlborough, MA
We are seeking a highly experienced Principal Software Engineer to join our dynamic team. The ideal candidate will possess a solid understanding of software architecture patterns and…
Added 1 hour ago
EL
Structural Staff Associate
ECS Ltd
Mount Laurel, NJ
- $65,000 to $80,000 USD / year
Possess basic technical writing skills and continue developing report writing under the direction of supervisors and Principal reviewers.
Added 1 hour ago
Principal Engineer, Quantum Software Development
Cisco Systems, Inc.
Remote, United States
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Clinical Specialist, Pain Interventions - Bozeman / Missoula / Helena, MT
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Principal Offensive Security Engineer
Alteryx, Inc.
Remote, United States
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Added 4 hours ago
Prin Mechanical Engineer (SRM - Thermal Analyst)
Jobgether
Remote, United States
The Principal Mechanical Engineer will play a critical role in advancing the thermal engineering of solid rocket motor systems. This position focuses on conducting sophisticated thermal…
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(Sr.) (Lead) (Principal) Analyst/Engineer (II)
PJM Interconnection, L.L.C.
Audubon, PA
The (Sr.) Lead Analyst/Engineer plays a key role in advancing the integration of distributed energy resources (DERs) and demand-side resources into the PJM wholesale electricity markets. As…
Added 5 hours ago
Principal Engineer, Applied AI & Build Standards
Best Buy
Richfield, MN
As the Principal Engineer on Best Buy’s Applied AI & Build Standards team, you will set our technical direction. You’ll decide how the platform is built and how agents earn trust, with one…
Added 5 hours ago
M
Cloud & AI Principal Solution Engineer
Microsoft
United States
- $130,900 to $272,300 USD / year
…challenges? We invite you to join Microsoft as a Cloud & AI Principal Solution Engineer supporting commercial customers. In this role, you will work on innovative projects that use…

Crossflow Technologies

Missile Modeling Kinematics Engineer

Colorado Springs, CO, United States

$90,000 to $130,000 USD / year

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Job details

Pay: $90,000 to $130,000 USD / year
Posting language: English
Posted: Nov 3, 2026

Original job description

Missile Modeling Kinematics Engineer – Level 2 or 3

Position Overview:

Threat Systems Engineering (TSE) is responsible for the development and delivery of high-fidelity threat modeling products in support of the Missile Defense Agency (MDA) and MDA's Ballistic Missile Defense System (BMDS). TSE is responsible for the development of models and simulations (M&S) used to stimulate element models of MDA's BMDS, including kinematic missile modeling, IR signature modeling, data production/analysis activities, and maintenance/sustainment activities for the entire TSE software baseline. TSE is a cornerstone element to the Threat and Advanced Simulations Development (TASD) contract.

This position requires a detail-oriented mid-level engineer responsible for understanding Aerodynamic forces, Guidance, Navigation and Control (GNC) systems, modeling & simulation of systems' kinematics characteristics within the TSE's model generation framework, and providing documentation required for running threat data in Ground Test architectures. The selected individual must be able to work with little or no direct supervision, work as an integral member of a product delivery team and meet time critical delivery schedules.

This role requires candidates to be onsite daily with no option for remote/hybrid work.

Essential Functions:

Responsible for developing ballistic and advanced/hypersonic kinematic threat models for use in a variety of modeling and simulation tools/frameworks/media.
Will apply standard engineering and mathematical algorithms to ensure the accurate portrayal of expected missile or space launch vehicle behavioral characteristics during all phases of powered and un-powered flight.
Will have a good understanding of modeling and simulation methods and processes.
Will research, interpret, and verify parameters required to build, replicate, and propagate missile or space launch vehicle trajectories including, but not limited to, staging debris, countermeasures, and payload traits.
Will author highly technical Verification and Validation (V&V) documents.

•

Will work with little to no direct supervision, work as an integral member of a product delivery team and meet time-critical delivery schedules.

Basic Requirements:

Level 3:
Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 5 years of related experience, or a Master's degree in a STEM discipline and 3 years of related experience, or a PhD and 0 year of experience.
Level 2:
Bachelor's Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 2 years of related experience, or a Master's degree in a STEM discipline and 0 years of experience.

Basic Requirements across levels:

Must already possess an active DoD Secret clearance.
Programming background to include languages such as MATLAB, Python and LaTex
Strong knowledge of the flight characteristics, motion, and performance of ballistic missiles
Must be self-motivated, able to work in a dynamic team environment
Ability to collaborate with systems engineers, software engineers, users, and MDA ground test stakeholders to ensure product requirements are met.
Familiar with Computer Aided Design tools and models.
Experience with Verification and Validation (V&V) of vehicle kinematics simulation results.

Preferred Requirements:

Strong math, physics or engineering background
Modeling, Simulation, and automation experience
Previous experience with modeling flight characteristics, motion, atmospheric dynamics, and missile performance parameters of ballistic missiles
Strong background in missile system engineering performance is highly desirable
Mastery of engineering modeling principles behind body motion, trajectory generation, counter measures, and debris is a plus
Possess and active DoD Secret Clearance with the ability to obtain a DoD Top Secret Clearance

Equal Opportunity/Affirmative Action Employer:

Crossflow ensures that employment decisions and personnel actions are administered fairly, equitably, and in compliance with the federal, state, and local laws and regulations governing EEO and personnel management. All qualified individuals will receive consideration for employment opportunities without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Why Crossflow?

Crossflow Technologies is proud to offer such wonderful benefits and perks to our employees; however, we feel the biggest perk is our company culture. We harbor a culture that extends down to the individual level by hiring people who understand and embrace our company values. Values like fervently protecting work-life balance and celebrating the achievements of others. To help guide and shape this environment, we strive to solicit feedback as frequently as possible through direct conversations and anonymous input. We take great pride in the fact that we have been contenders for the Best Places to Work award for the past few years - particularly when paired with having made the Inc. 5000 list for growth. To us, this demonstrates our ability to effectively scale our culture showing that Crossflow has been and continues to be, a place that people want to be.

Benefit-Eligible Employee Perks:

EXCEPTIONAL HEALTH, DENTAL, AND VISION COVERAGE Crossflow is pleased to offer employees with exceptional single and family options for health, dental, and vision coverage. Payments are taken from the first two paychecks of each month.

At a glance,

Health coverage choices (including an HSA) ranging from $0.00 to $403.14;
Dental coverage ranges from $8.23 to $31.65; and
Vision coverage ranges from $8.28 to $21.80

CROSSFLOW KUDOS SPOT BONUS PROGRAM

We created a unique performance bonus program called Crossflow Kudos. Throughout the year, employees are nominated by other employees, company leads, and even individuals outside of Crossflow to receive additional compensation and personal recognition for their positive work. There are six broad categories in which employees can earn Kudos awards.

401(k) RETIREMENT PLAN & COMPANY MATCHING

Crossflow uses Principal as our 401(k) plan sponsor. Employees can choose payroll deduction and fund investing options. Payroll deductions will begin the month following your enrollment. Crossflow matches 100% of the first 3% of compensation, plus 50% of the next 2% of compensation.

Employee Stock Ownership Plan (ESOP)

Crossflow Technologies offers benefit-eligible employees participation in an Employee Stock Ownership Plan (ESOP). Through the ESOP, eligible employees may receive an ownership interest in the company, creating an opportunity to share in Crossflow's long-term success while building retirement value alongside our other employee benefits.

HIGHER EDUCATION ASSISTANCE PROGRAM

Crossflow offers education assistance to benefit-eligible employees for degree programs at their director's discretion. Crossflow feels that a well-rounded education, even outside of an employee's current role, can enhance an employee's skillset and increase the company's value.

GENEROUS PTO ACCRUAL & FLEXIBLE LEAVE POLICY

Crossflow currently grants 11 federally observed paid holidays. In addition to these holidays, Crossflow offers a minimum of 2 weeks of paid time off (PTO) to all full-time employees. Employees may utilize PTO for any reason (sickness, vacation, personal day, etc.) and can carry over a maximum of 120 hours from year to year. Many employees are authorized to work additional hours within a normal, forty-hour pay period. This approval is included in the employee's offer letter for employment. These extra hours may be banked for compensatory (comp) time off.

PAID PARENTAL & BEREAVEMENT LEAVE

To help our employees be present with family during major life events, Crossflow provides additional PTO. We offer varying types of paid Parental Leave to aid birthing, non-birthing, and adoptive parents transition into parenthood. Crossflow also recognizes the importance of supporting employees who endure a death in their family by providing up to 5 days of paid Bereavement Leave a year.

PROFESSIONAL DEVELOPMENT FUNDING

We support employees who seek out personal or professional growth opportunities through countless of enabling programs to further equip themselves. Professional Development includes, but is not limited to, training courses, certificate programs, memberships to industry groups, and materials.

EMPLOYEE DRIVEN COMMUNITY ENGAGEMENT

We create as many opportunities as possible for employees to meet and build community. We offer monthly team bonding activities, allowing team members to assemble on a different level than at work. In addition to these gatherings, in 2021 we established Crossflow Cares, an employee-owned and operated charitable organization focused on awarding grants and providing volunteers to local non-profits. Furthermore, Crossflow Technologies is committed to serving the public by investing a large portion of our net income in the greater Huntsville/Madison County area.

MENTORSHIP PROGRAM & MORALE LUNCHES

The most successful people in the world always have a terrific team behind them, and Crossflow chooses to be the team behind the people, cheering our employees on to meaningful successes. Our Mentorship Program involves strategically pairing a protégé with a mentor who understands an employee's career aspirations and provides coaching towards that goal. A less structured version of this is our Morale Lunch program. We committed a portion of our budget to support our leads to meet with their team members over lunch and facilitate quality catch up sessions. The morale lunches have become a great tool for maintaining open communication and gaining insightful feedback.

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