CesiumAstro

Senior Propulsion / Thermal Systems Analyst I

Bulgaria, Bulgaria,

Full Time

12 minutes ago

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Job description

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

We are seeking a highly skilled and self-driven Senior Propulsion / Thermal Systems Analyst I with a strong background in the development of engineering software for aerospace applications. This role is ideal for an individual who thrives at the intersection of engineering analysis and software development, and who is passionate about enabling advanced modeling of liquid rocket engine processes.

JOB DUTIES AND RESPONSIBILITIES

Perform the end-to-end development of software tools for thermal and propulsion system calculations.
Design, implement, test, and maintain computational models for predicting the steady-state and transient behavior of the different configurations of liquid propellant rocket engines and for analyzing heat transfer in liquid rocket engines.
Collaborate with domain experts and system engineers to ensure software accuracy, usability, and integration into broader analysis workflows.
Continuously improve and validate simulation tools to support real-world propulsion system design and performance evaluation.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

Master’s degree in Mechanical or Aerospace Engineering, or related fields.
Minimum 4 years of industry experience in aerospace propulsion systems.
Solid experience in propulsion and thermal systems engineering, particularly in the context of liquid rocket engines.
Proven track record in developing engineering software, including algorithm development, numerical methods, and system architecture.
Strong understanding of fluid dynamics, thermodynamics, and heat transfer principles.
Proficiency in programming languages and tools commonly used in scientific computing and simulation (e.g. MATLAB, Fortran, C++ , Python etc.).
Familiarity with software validation, documentation, and user support in a research or R&D environment.

PREFERRED EXPERIENCE

Experience working on projects where developed software was used for real-world engineering analysis.
Ability to manage the complete software development life cycle—from concept to deployment and maintenance.

CesiumAstro is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, disability, or any other characteristic protected by Bulgarian law.

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members not through our approved vendor list or Talent Acquisition will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.