Jobs at The Principia

The Assistant Principal of Instruction role at Mastery Schools supports a public charter network dedicated to equity and student success in Philadelphia and Camden. This position involves leading and coaching a team of educators to foster student-centered classrooms, while supervising instructional methods and evaluating lesson plans. Key responsibilities include analyzing student performance data to drive academic improvement, coordinating assessments, and engaging families to build a supportive community. The role appeals to candidates seeking to make a meaningful impact in an inclusive culture that values continuous improvement and professional growth. The position offers opportunities for career advancement within a specific content specialty and includes access to comprehensive benefits and professional development funds.

The Principal Clinical Data Manager role at Everest Clinical Research leads data management activities for global clinical trials within a full-service CRO. The position involves overseeing database design, validating electronic data, resolving complex queries, and managing team resources to ensure high-quality deliverables. Key responsibilities include developing data management plans, leading user acceptance testing, and mentoring staff on data flow and quality control processes. This opportunity appeals to experienced professionals seeking a dynamic environment with a strong focus on quality and customer service. The role offers flexibility through remote work options across the USA or an on-site position in Bridgewater, New Jersey, supporting career growth within a rapidly expanding organization.

The Principal System Safety Engineer role is based onsite in Aurora, Colorado, serving as a technical expert and project manager for DoD missile safety programs. The position requires an active Top Secret security clearance and involves establishing comprehensive safety programs compliant with MIL-STD-882E across hardware, software, and firmware. Key responsibilities include leading safety teams, integrating safety tasks into program schedules, managing risk mitigation strategies, and mentoring junior engineers. This opportunity appeals to professionals seeking to contribute to national defense by solving complex safety challenges within a collaborative culture that values innovation and accountability. The role offers the chance to shape safety postures across the entire product lifecycle while working directly with engineering and program leadership.

The Principal System Safety Engineer role serves as a Safety Lead for DoD missile systems at Raytheon's Aurora, Colorado facility. This onsite position requires an active Top Secret security clearance and involves establishing and executing comprehensive safety programs compliant with MIL-STD-882E. Key responsibilities include managing safety task series, integrating safety milestones into the Integrated Master Schedule, leading safety working groups, and mentoring junior engineers while collaborating across engineering functions to mitigate risks. The role appeals to candidates seeking to apply advanced technical expertise to meaningful national defense missions within a culture rooted in trust, accountability, and innovation. The position offers the opportunity to shape safety postures across the entire product lifecycle and includes relocation eligibility.

The Principal, Elementary role leads the administration and supervision of an elementary school within Nottoway County Public Schools. The position serves as the primary instructional leader, utilizing data to drive academic achievement and overseeing the development of effective instructional programs through classroom supervision and staff evaluation. Key responsibilities include managing school budgets, facilitating strong community and parent relations, and ensuring a safe, conducive learning environment for all students. This opportunity appeals to experienced educational leaders seeking to shape student success in a supportive division environment. The role requires a Virginia building-level principal license and involves on-site leadership with regular interaction among staff, students, and the community.

The Principal Engineer, EMC role is a senior individual contributor position within the engineering department responsible for leading electromagnetic compatibility activities across new product development and sustaining programs. The position serves as a subject matter expert who partners with cross-functional teams to guide design decisions, mitigate technical risks, and ensure global regulatory compliance. Key responsibilities include performing board and system-level troubleshooting, overseeing pre-compliance and formal testing, and developing technical documentation to support product certification. This opportunity appeals to candidates seeking a high-impact technical career where they can mentor engineers and drive complex problem-solving without direct people management duties. The role is based onsite at the Irvine, California office and offers a collaborative environment focused on advancing medical device technology.

The Principal Information Security Analyst role leads advanced cybersecurity initiatives within ManTech's IT and Cybersecurity organization, focusing on mission-critical systems for the U.S. intelligence community and Department of Defense. Key responsibilities include architecting security controls, overseeing threat detection and incident response, managing vulnerability assessments, and mentoring junior staff. The position requires collaboration with engineering teams to integrate security into system designs and advising stakeholders on emerging threats. This opportunity appeals to professionals seeking to work on high-impact national security projects within a culture that values innovation and integrity. The role supports professional growth through exposure to cutting-edge technologies and offers a comprehensive benefits package including medical, dental, vision, and retirement plans.

The Principal Data Analyst role serves as a trusted analytical partner to Long Term Care Claims Operations leadership at Genworth, focusing on translating complex data into strategic insights. Key responsibilities include designing scalable Power BI solutions, developing advanced SQL queries for forecasting and capacity planning, and ensuring data quality across enterprise systems. The position requires mentoring junior staff and presenting actionable narratives to senior executives. This opportunity appeals to candidates seeking a purpose-driven career within a compassionate culture that values diversity and community impact. The role offers a hybrid work arrangement in Richmond, Virginia, and supports professional growth through extensive training and upskilling resources.

The Principal Geologist role at Endurance focuses on identifying and characterizing subsea geothermal sites to power modular energy plants. Key responsibilities include leading geological site assessments, designing drilling strategies for hydrothermal systems, and interpreting geophysical data to optimize wellbore designs. The position offers the appeal of pioneering a new clean energy industry with significant autonomy, allowing the candidate to shape geological approaches while collaborating across engineering and operations teams. The work arrangement involves global fieldwork at oceanic deployment sites, hands-on participation in sea trials, and the opportunity to solve pressing environmental challenges using cutting-edge marine technology.

The Principal Systems Safety Engineer role supports the Sentinel program within Northrop Grumman's Strategic Deterrent Systems division in Huntsville, Alabama. The position involves developing system safety artifacts, managing requirements, and conducting hazard analyses using MIL-STD-882E to ensure flight worthiness for complex weapons systems. Key responsibilities include collaborating with cross-functional teams to mature architecture designs, integrating model-based systems engineering processes, and verifying safety documentation for software and hardware. The role offers a collaborative culture that values intellectual curiosity and innovation, with opportunities to contribute to revolutionary defense technologies. Employees benefit from a flexible 9/80 work schedule, comprehensive health and wellness resources, and potential relocation assistance. The position requires a Secret clearance and involves approximately 10% travel.

The Principal System Safety Engineer role is based onsite in Aurora, Colorado, where the incumbent serves as a technical expert and project manager for DoD missile safety programs. Key responsibilities include developing and executing MIL-STD-882E compliant safety programs, integrating safety tasks into the Integrated Master Schedule, and leading cross-functional teams to identify and mitigate hazards across hardware, software, and firmware. The position involves mentoring junior engineers, engaging with engineering review boards, and collaborating with government authorities throughout the product lifecycle. This opportunity appeals to professionals seeking to apply advanced engineering expertise to meaningful national defense missions within a culture that values trust, innovation, and collaboration. The role requires an active Top Secret security clearance and U.S. citizenship.

This Principal Data Science Engineer role focuses on developing AI and machine learning algorithms to enhance organ preservation technology and improve patient outcomes in the healthcare sector. The position involves managing the end-to-end lifecycle of data-driven software products, designing clinical decision support models, and ensuring strict adherence to regulatory standards like HIPAA and GDPR. Key responsibilities include collaborating with clinical and engineering teams to translate medical needs into technical solutions, implementing secure data handling practices, and guiding algorithmic strategy. The role is appealing due to its mission-driven environment where employees contribute directly to saving lives by expanding access to viable donor organs. The position offers opportunities for professional growth within a collaborative culture and includes limited domestic and international travel.

This full-time Assistant Principal role at an elementary school supports the Principal in managing daily operations and fostering a collaborative learning environment. Key responsibilities include providing instructional leadership by analyzing data to drive student achievement, supervising teachers and staff, and ensuring compliance with educational policies and safety regulations. The position also involves coordinating extracurricular activities, managing school budgets, and serving as a liaison between the school, parents, and the community. The role appeals to educational leaders seeking to shape school culture and support student success within a structured, mission-driven district. The position is based on-site at the intermediate school with standard school hours.

This 12-month administrative role at Conant High School supports the principal in advancing student achievement and school operations. The position involves monitoring academic performance, attendance, and behavior for a specific student caseload while facilitating Multi-Tiered Systems of Support teams. Key responsibilities include overseeing Tier II and III interventions, conducting staff evaluations, coordinating instructional leadership with department chairs, and managing safety operations and extracurricular events. The role appeals to educators committed to equity and school improvement, offering a collaborative environment focused on meaningful relationships with students, families, and staff. Candidates must hold an Illinois administrative endorsement and possess prior teaching experience.

This principal quantitative developer role embeds the candidate within the Quantitative Research and Investment Technology group at Fidelity Asset Management Solutions. The position blends investment management with technical expertise to partner with investment teams on portfolio construction, risk management, and alpha research. Key responsibilities include building robust analytical solutions using Python, SQL, and Linux, leading full-stack software development projects, and applying advanced statistical methods to enhance decision-making processes. The role appeals to professionals seeking to leverage deep quantitative skills in a collaborative environment that values rigorous engineering practices and continuous innovation. It offers opportunities for career growth through educational assistance and a comprehensive benefits package, supporting a balance between professional development and personal well-being.

This principal quantitative developer role embeds the candidate within the Quantitative Research and Investment Technology group at Fidelity Asset Management Solutions. The position blends investment management with technical expertise to partner with investment teams on portfolio construction, risk management, and alpha research. Key responsibilities include building robust analytical solutions using Python, SQL, and Linux, leading full-stack software development projects, and applying advanced statistical methods to enhance decision-making processes. The role appeals to professionals seeking to drive innovation in alternative investment processes while working in a collaborative environment that values research rigor and repeatability. The position offers opportunities for career growth through educational assistance and a comprehensive benefits package, supporting a balance between professional development and personal well-being.

This Principal Individual Contributor role within Humana's Supplemental Benefits Operations team focuses on the strategic execution and lifecycle management of the Spending Account Card. The position serves as a key thought partner to the Director, translating high-level strategy into actionable plans for benefit design, regulatory compliance, and operational optimization. Key responsibilities include leading cross-functional initiatives with technology and finance teams, managing vendor relationships, and ensuring adherence to CMS regulations while driving continuous improvement in member experience. The role offers the appeal of working for a leading healthcare organization with a mission to improve community well-being, providing significant autonomy to influence complex, high-visibility projects. While the position is primarily remote with a strong preference for Louisville, Kentucky, it includes occasional travel for meetings and training.

This full-time Assistant Principal role at a Lower Elementary campus focuses on fostering student culture, safety, and social-emotional well-being. The position involves investigating and resolving disciplinary issues, developing safety protocols, and mentoring at-risk students while collaborating with teachers, families, and community agencies. Key responsibilities include supervising student conduct, training staff on classroom management, and maintaining detailed records to ensure a secure learning environment. The role appeals to candidates seeking to lead character development initiatives and support a mission-driven educational community. The position is based on-site at the campus with occasional evening or weekend activities and moderate travel required.

This Principal Engineer role in Technical Operations focuses on leading process development and continuous improvement within radiopharmaceutical manufacturing. The position involves managing Non-Conformance Reports, Corrective and Preventive Actions, and Change Controls to ensure strict adherence to ISO 13485 and 21 CFR 820 regulations. Key responsibilities include creating Master Batch Records, serving as a Subject Matter Expert for cross-functional teams, and driving data analysis to enhance operational efficiency and product quality. The role offers the opportunity to work on complex, high-impact projects that directly support patient care through innovative technical solutions. It is designed for experienced engineers who thrive in a collaborative environment where they can mentor colleagues and independently solve difficult process challenges.

This Principal Clinical Specialist role at Medtronic focuses on providing technical expertise and support for vascular medical products within the New York and Brooklyn region. The position involves educating healthcare professionals on vascular disease therapies, assisting sales teams during critical surgical cases, and managing inventory strategies to optimize product availability. Key responsibilities include conducting in-service training, maintaining relationships with key hospital stakeholders, and ensuring compliance with clinical protocols. The role appeals to professionals seeking a mission-driven career that combines deep technical knowledge with the opportunity to improve patient outcomes. It offers a dynamic environment with significant travel requirements and a collaborative culture that values innovation and professional growth.

This Principal Consultant role serves as a strategic lead for electric transmission routing and siting projects within ERM's global sustainability consultancy. The position involves overseeing complex routing studies, managing multidisciplinary teams, and guiding clients through regulatory approvals and stakeholder engagement across the Midwest, Mid-Atlantic, and Appalachian regions. Key responsibilities include developing route alternatives, preparing technical reports and siting filings, and representing the firm in agency meetings or evidentiary hearings. The role is appealing for its opportunity to shape the future of resilient energy infrastructure while balancing environmental protection with community needs. It offers a flexible work arrangement with options for in-office, hybrid, or fully remote locations, alongside a collaborative culture that values diverse expertise and professional growth.

This upcoming Principal Cost Controls Specialist role focuses on progress measurement within McDermott's project controls function for large-scale Oil & Gas and offshore construction projects. The position involves leading project controls teams on complex EPC initiatives, implementing constructability concepts, and managing cost forecasting, trending, and recovery plans. Key responsibilities include supervising junior personnel, developing Work Breakdown Structures, and leading change management efforts to ensure project accuracy and alignment. The role appeals to experienced professionals seeking to work independently with minimal guidance while mentoring others and driving process improvements. It offers the opportunity to engage with high-stakes mega-projects and contribute to the future of the energy sector through advanced planning and risk analysis.