Jobs at Three Saints Bay, LLC

This onsite Senior Principal Systems Engineer role at RTX focuses on driving Model-Based Systems Engineering (MBSE) implementation within the aerospace and defense sector. The position requires an active U.S. government security clearance and involves creating and validating complex MBSE models, integrating engineering tools, and leading system trade studies. Key responsibilities include mentoring team members, developing best practices, and ensuring connectivity between MBSE platforms and hardware design tools. The role appeals to experienced engineers seeking to solve complex global problems within a collaborative culture that values innovation and safety. Candidates will work alongside world-class teams in Tewksbury, MA, Marlborough, MA, Woburn, MA, or Aurora, CO, contributing to mission-critical solutions that protect national security.

This onsite Principal Program Protection Engineer role at RTX's Software Product Assurance Center focuses on designing and developing secure, real-time embedded software for defense applications. The position involves creating hardened C and C++ applications on Linux and real-time operating systems, managing codebases with CMake and Google Test, and collaborating with systems and hardware engineers to ensure architectural integrity. Key responsibilities include decomposing system requirements, debugging board-level issues, and leading technical integration with subcontractors. The role appeals to experienced engineers seeking to solve complex security challenges within a world-class aerospace and defense environment. It offers the opportunity to work on mission-critical projects that protect national security while contributing to a culture of technical excellence and continuous innovation.

This onsite Principal Program Protection Engineer role at RTX's Software Product Assurance Center focuses on designing and developing secure, real-time embedded software for defense applications. The position involves creating hardened applications using C and C++ on Linux and real-time operating systems, while collaborating with systems and hardware engineers to decompose architectural requirements and ensure system integrity. Key responsibilities include managing code bases with CMake and Google Test, debugging board-level issues, and participating in technical integration meetings with subcontractors. The role appeals to experienced engineers seeking to solve complex security challenges within a world-class aerospace and defense environment. It offers the opportunity to work on mission-critical projects that protect national security, supported by a culture of technical excellence and continuous innovation.

This onsite Principal Program Protection Engineer role at RTX's Software Product Assurance Center focuses on designing and developing secure, real-time embedded software for defense applications. The position involves creating hardened C and C++ applications for Linux and real-time operating systems, managing codebases with CMake and Google Test, and collaborating with systems and hardware engineers to ensure architectural integrity. Key responsibilities include decomposing system requirements, debugging board-level issues, and leading technical integration meetings with subcontractors. The role appeals to experienced engineers seeking to solve complex security challenges within a world-class aerospace and defense environment. It offers the opportunity to work on mission-critical systems that protect national security while contributing to a culture of technical excellence and continuous innovation.

This onsite Senior Principal Program Protection Engineer role at RTX's Software Product Assurance Center focuses on designing and developing secure, real-time embedded software for critical defense systems. The position involves creating hardened applications using C and C++ on Linux and real-time operating systems, while collaborating with systems and hardware engineers to decompose architectural requirements and ensure system integrity. Key responsibilities include managing codebases with CMake and Google Test, debugging board-level issues, and participating in technical integration meetings with subcontractors. The role appeals to engineers seeking to solve complex aerospace and defense challenges within a world-class organization that values technical excellence and innovation. Candidates will work in a collaborative environment at the Tewksbury, Massachusetts facility, leveraging their expertise to protect national security while advancing their careers in a mission-driven culture.

This on-site Senior Mechanical Engineer role supports the Air Defense Ground Equipment team at RTX in Tewksbury or Andover, Massachusetts. The position focuses on designing and integrating critical defense systems, including radar shelters and launchers, while serving as a technical lead within cross-functional Integrated Product Teams. Key responsibilities involve managing the full product lifecycle from concept to production, conducting design reviews, and collaborating with suppliers to resolve complex engineering challenges. The role appeals to candidates seeking to work on high-impact aerospace and defense projects within a culture that prioritizes safety, innovation, and collaboration. Candidates must hold an active U.S. Secret security clearance and be a U.S. citizen. The position requires full-time onsite presence with occasional travel up to 10%.

This onsite Senior Principal Launcher Product Lead role within Raytheon's Land Air Defense Systems Engineering Execution Department focuses on leading the Coyote Block 3+ Launcher product team. The position involves ensuring technical integrity of hardware systems, managing cost and schedule through Earned Value Management, and overseeing technical risk and failure investigations. Key responsibilities include leading cross-functional teams, coordinating with suppliers and customers, and driving engineering change proposals. The role offers the opportunity to work on mission-critical aerospace and defense projects at a global industry leader. It appeals to candidates seeking to shape the future of national security while contributing to a culture built on safety, trust, and innovation. The position requires U.S. citizenship and a Secret security clearance, with up to 25% travel to customer and testing locations.

This onsite Senior C/C++ Software Development Engineer role is based in Tewksbury, Massachusetts, supporting the Patriot air defense system within a secure environment. The position involves designing and maintaining complex real-time software applications, collaborating with cross-functional teams to ensure system scalability, and optimizing code for performance in high-concurrency environments. Candidates must hold or be eligible for a U.S. government Secret security clearance. The role offers the appeal of working on mission-critical defense technology with a dynamic team that values innovation and safety. Employees benefit from an optional 9/80 work schedule to support work-life balance and access to relocation assistance. The position requires exclusive onsite presence in a SCIF setting with occasional light travel and off-hours testing.

This onsite Principal Software Engineering Architect role is based in Tewksbury, Massachusetts, within RTX's aerospace and defense engineering team. The position focuses on translating complex customer needs into scalable, mission-critical software architectures while managing technical risks and introducing modern design processes. Key responsibilities include guiding technical execution across teams, mentoring engineers, and ensuring system performance in classified environments. The role appeals to candidates seeking to solve global security challenges with a world-class team that values innovation, collaboration, and safety. Relocation assistance is available for qualified U.S. citizens holding an active Top Secret security clearance.

The Principal Software Engineering Architect role is based onsite in Tewksbury, Massachusetts, within RTX's aerospace and defense engineering team. This position focuses on translating complex customer needs into scalable, mission-critical software architectures while managing technical risks and introducing modern design processes. Key responsibilities include guiding technical execution across teams, mentoring engineers, and ensuring system performance in classified environments. The role appeals to candidates seeking to solve the world's most complex problems with a team of over 185,000 professionals dedicated to national security. The position offers a collaborative culture rooted in safety and innovation, with relocation assistance available for qualified candidates holding an active Top Secret security clearance.

This onsite Senior C/C++ Software Development Engineer role supports the Patriot air defense system team in Tewksbury, Massachusetts. The position involves designing and maintaining complex real-time software applications, collaborating with cross-functional teams to implement scalable features, and optimizing code performance within a secure environment. Candidates will work in a dynamic setting with access to a 9/80 work schedule to support work-life balance. The role appeals to engineers seeking to contribute to national defense and aerospace innovation while working with cutting-edge technologies like embedded systems and Unix/Linux. An active or obtainable U.S. government Secret security clearance is mandatory, and the position requires exclusive onsite presence.

This onsite Senior C/C++ Software Development Engineer role is based in Tewksbury, Massachusetts, supporting the Patriot air defense system team at RTX. The position involves designing and maintaining complex real-time software applications, collaborating with cross-functional teams to ensure system scalability, and optimizing code for performance in high-concurrency environments. The role offers the opportunity to work on mission-critical defense solutions within a dynamic, fast-paced culture that values innovation and safety. Key appeals include an optional 9/80 work schedule to support work-life balance, access to a secure environment for advanced engineering challenges, and relocation assistance. Candidates must possess a U.S. citizenship and an active or obtainable Secret security clearance to work in the facility.

This onsite Senior C/C++ Software Development Engineer role is based in Tewksbury, Massachusetts, supporting the Patriot air defense system within RTX's aerospace and defense division. The position involves designing and maintaining complex real-time software applications, collaborating with cross-functional teams to ensure system scalability, and optimizing code for performance in high-concurrency environments. Candidates will work within a secure facility and benefit from an optional 9/80 work schedule that supports work-life balance. The role appeals to engineers seeking to contribute to national security missions while working with cutting-edge technologies in a dynamic, purpose-driven culture. A valid U.S. government security clearance is required, and the position offers opportunities for professional growth within a world-class engineering organization.

This onsite Senior Principal Launcher Product Lead role within Raytheon's Land Air Defense Systems Engineering Execution Department focuses on leading the Coyote Block 3 plus launcher product team. The position involves ensuring technical integrity of hardware and data packages, managing program costs and schedules through Earned Value Management, and overseeing technical risk and failure investigations. The role requires collaboration with cross-functional teams, suppliers, and customers, with up to 25% travel to labs and field sites. This opportunity appeals to experienced engineering leaders seeking to shape the future of aerospace and defense at a global company known for innovation and mission-driven work. The position offers a collaborative culture grounded in safety and accountability, along with relocation assistance for qualified candidates.

This part-time, onsite role at Raytheon's Tucson facility supports the Tool Engineering team by managing special tooling acquisition processes in compliance with federal regulations. Key responsibilities include developing training materials for tooling professionals, harmonizing request systems across multiple groups, and guiding the transition from legacy software to new platforms. The position also involves creating performance metrics for design and fabrication operations. The role appeals to candidates seeking to contribute to a global aerospace and defense leader known for innovation and complex problem-solving. It offers a collaborative environment focused on safety and accountability within a hybrid work structure, though this specific position requires daily onsite presence.

The Software Integrated Product Team Lead role within RTX's Air & Space Defense Systems organization oversees software execution for critical embedded defense programs in Tucson, Arizona. The position requires leading engineering teams through development, integration, and qualification while serving as the Control Account Manager for earned value metrics, budget management, and milestone reviews. Key responsibilities include driving Agile strategies, managing technical risks, and mentoring staff to ensure mission-critical software reliability. This onsite opportunity appeals to candidates seeking to apply their expertise in complex hardware-software systems at a global leader in aerospace and defense, offering a mission-driven environment focused on national security and innovation.

This full-time Civil Engineer role supports a design team specializing in airport infrastructure planning and development within AVCON's Wilmington, North Carolina office. Key responsibilities include designing airfield pavements, stormwater systems, and site layouts, while also preparing construction plans, engineering reports, and permit applications. The position involves collaborating with clients and contractors, managing project schedules, and providing oversight during construction phases. The opportunity appeals to professionals seeking to apply their expertise in aviation and transportation engineering within a collaborative environment that values innovative, practical solutions. The role offers a stable office setting with occasional site visits, requiring proficiency in AutoCAD Civil 3D and a commitment to professional licensure growth.

This senior leadership role serves as the Medical Director for MedStar Family Choice, a Medicaid managed care organization in Baltimore. The position acts as a strategic advisor to executive leadership, overseeing clinical operations and driving outcomes through innovative care management and value-based contracting. Key responsibilities include directing the network of Maryland Medical Directors, developing clinical strategies, and fostering collaborative relationships with government agencies, hospitals, and community providers. The role appeals to physicians seeking to influence population health within a nationally recognized health system that offers extensive resources and a commitment to diversity. This hybrid position requires three days onsite at the Maryland office with remote flexibility, providing a supportive environment for professional growth and community impact.

This role involves serving as an Emergency Medicine Physician and officer within the U.S. Army Reserve, providing care to Soldiers, their families, and a diverse community population. The position combines civilian practice with military service, allowing physicians to treat unique cases while working alongside top-tier colleagues. Key responsibilities include delivering emergency medical care, participating in humanitarian missions, and engaging in continuous professional development and leadership training. The opportunity is appealing due to the chance to make a significant impact on national defenders, access to extensive travel, and a supportive culture that values clinical excellence. The work arrangement offers flexibility to practice locally while serving when needed, with opportunities for global deployment.

This faculty position within the Department of Emergency Medicine at Prisma Health seeks a board-certified Medical Toxicologist to support a large academic medical center in Greenville, South Carolina. The role involves leading an active inpatient consult service, shaping the accredited Emergency Medicine Residency Program, and contributing to clinical scholarship and education. Candidates will work within a high-volume regional referral hospital featuring Level 1 and 2 trauma centers, a dedicated pediatric emergency department, and advanced fellowship programs. The opportunity is appealing due to the chance to train the next generation of physicians, access to extensive research resources, and a collaborative environment with a diverse team. The position offers a supportive work arrangement with relocation assistance and professional development allowances, situated in a rapidly growing region known for its high quality of life and proximity to mountains and lakes.

This full-time faculty role involves joining the Advanced Heart Failure and Cardiac Transplant Team at Phoenix Children's Hospital as a Pediatric Cardiologist. The position focuses on managing pediatric heart failure patients, performing heart transplants, and overseeing mechanical circulatory support devices within a large interdisciplinary team. Key responsibilities include providing direct inpatient and outpatient clinical care, supervising medical trainees through rounds and lectures, and contributing to clinical or translational research initiatives. The role offers an appealing academic environment with affiliations to major medical schools and extensive research collaborations. It is situated in a vibrant metropolitan area known for its quality of life, featuring a high-volume program with significant resources and a collaborative culture dedicated to family-centered care.

This full-time faculty role involves joining the Advanced Heart Failure and Cardiac Transplant Team at Phoenix Children's Hospital as an Instructor, Assistant, or Associate Professor. The position focuses on providing comprehensive inpatient and outpatient care for pediatric heart transplant and mechanical circulatory support patients within a large, interdisciplinary team. Key responsibilities include delivering direct clinical services, supervising fellows and residents through teaching rounds and conferences, and contributing to clinical or translational research initiatives. The role is appealing due to the opportunity to work at one of the nation's largest freestanding children's health systems with access to extensive research collaborations and academic appointments. The position offers a supportive environment in a top-ranked metropolitan area known for its quality of life and sunny climate.

This full-time Pediatrician role involves joining a patient-centered team of five within Summit Health's multispecialty practice in Central Oregon. The position is based at the Old Mill District clinic in Bend, operating Monday through Saturday, and focuses on delivering high-quality care to children and families in a physician-led environment. Key responsibilities include managing a busy patient panel, utilizing the Epic platform for efficient care delivery, and collaborating with comprehensive support teams for billing, coding, and IT. The opportunity is appealing due to the practice's strong reputation for quality, the potential for professional growth in a high-demand market, and the supportive culture that includes after-hours nursing call assistance. The role offers a high quality of life with access to outdoor activities and a thriving community, while providing a shareholder opportunity and robust benefits for professional and personal development.