> Markdown version of [/jobs/ext/626159-environmental-control-system-ecs-trade-study-certification-support-engineer](https://www.wearedevelopers.com/jobs/ext/626159-environmental-control-system-ecs-trade-study-certification-support-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Environmental Control System (ECS) Trade Study & Certification Support Engineer - **Company:** Cyient, Inc. - **Location:** Everett, WA, United States - **Experience:** Expert - **Salary:** $110,000.0 - $140,000.0 - **Contract:** Permanent contract - **Skills:** Systems Engineering, Configuration Management, Requirements Management, Software Requirements Analysis, Systems Modeling Language, Systems Architecture, Systems Integration, Data Analytics - **Published:** June 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=c70f1764809375dd ## About the Role Do you have experience in Thermal control?, * Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Systems Engineering, or related discipline. * 5+ years of aerospace engineering experience. * Experience supporting aircraft Environmental Control Systems (ECS), air management systems, thermal management systems, or related aircraft subsystems. * Understanding of thermodynamics, fluid dynamics, heat transfer, and aircraft environmental systems. * Experience performing engineering trade studies and architecture evaluations. * Ability to generate clear technical reports, recommendations, and engineering documentation. * Experience working with requirements management tools such as DOORS. * Familiarity with configuration management and document control processes. Preferred Qualifications * Experience supporting commercial aircraft certification programs. * Familiarity with FAA Part 25 and EASA CS-25 certification requirements. * Knowledge of bleed-air, bleedless, thermal management, anti-ice, and aircraft pressurization systems. * Experience with Model-Based Systems Engineering (MBSE), SysML, Cameo, or similar tools. * Experience supporting Boeing, Airbus, military aircraft, or advanced air mobility programs. * Experience participating in SRR, PDR, CDR, and certification reviews. ## Description We are seeking an Environmental Control System (ECS) Trade Study & Certification Support Engineer to support advanced aerospace platform development activities. This role will focus on evaluating ECS architectures, performing technical trade studies, supporting certification planning, and developing system-level requirements and documentation. The ideal candidate will have experience with aircraft environmental control systems, thermofluid systems, system architecture development, and aerospace certification activities. This individual will work cross-functionally with propulsion, avionics, structures, safety, and operations teams to develop data-driven recommendations supporting aircraft design and certification efforts. Key ResponsibilitiesECS Architecture & Trade Studies * Lead and execute Environmental Control System (ECS) trade studies and architecture evaluations. * Perform bleed-air versus bleedless architecture analyses and provide recommendation packages. * Evaluate electrical architecture alternatives and system integration impacts. * Assess anti-ice system architecture concepts and performance tradeoffs. * Develop controls architecture concepts, functional requirements, and interface definitions. * Conduct pack sizing, heat exchanger, cooling, and airflow optimization studies. * Define and evaluate figures of merit including performance, weight, cost, reliability, maintainability, safety, and certification impacts. * Perform sensitivity analyses and document assumptions, methodologies, and results. Systems Engineering & Requirements * Support ECS requirements development, decomposition, allocation, and traceability. * Create system architecture descriptions, functional block diagrams, and interface definitions. * Maintain requirements and verification artifacts using requirements management tools. * Support configuration management and document control processes. Certification & Compliance Support * Support certification planning activities for ECS-related systems and functions. * Contribute to certification plans, means of compliance, compliance matrices, and verification documentation. * Support compliance activities related to FAA/EASA regulations including: * 14 CFR / CS 25.831 - Ventilation * 14 CFR / CS 25.841 - Pressurization * 14 CFR / CS 25.1309 - System Safety * 14 CFR / CS 25.1438 and related environmental system requirements * Prepare analysis reports, compliance summaries, and authority submittal documentation. * Support technical reviews including SRR, PDR, CDR, TRR, and certification reviews. Cross-Functional Collaboration * Coordinate with propulsion, loads, avionics, structures, safety, flight operations, and certification teams. * Present technical recommendations and decision-ready materials to program stakeholders. * Ensure consistency between trade study outcomes, system requirements, and certification objectives. ## Related Videos - [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process) - [Crew Management System for Airlines: Plan duties for pilots & flight attendants worldwide](https://www.wearedevelopers.com/videos/1444-crew-management-system-for-airlines-plan-duties-for-pilots-flight-attendants-worldwide) - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [AI Agents & Agentic AI](https://www.wearedevelopers.com/videos/2017-ai-agents-agentic-ai) - [Automated Driving - Why is it so hard to introduce](https://www.wearedevelopers.com/videos/628-automated-driving-why-is-it-so-hard-to-introduce) - [How Data is Shaping our Games](https://www.wearedevelopers.com/videos/176-how-data-is-shaping-our-games) ## Related Articles - [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)