Principal Software Engineer RTX CorpPrincipal Software EngineerWoburn, MAAt RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. This role requires advanced technical expertise, leadership skills, and a demonstrated ability to drive innovation and foster collaboration across cross-functional teams.
Senior Principal, AI Product Owner - Agentic AI Entegris IncSenior Principal, AI Product Owner - Agentic AIMA$175,000–$230,000 / yearThis is a senior, builder-level role: you'll shape the product portfolio, stand up the practice, establish governance and guardrails, and ensure the underlying data is AI-ready - partnering with business leaders, IT, data engineering, and data science to take solutions from concept to scaled production. 15+ years in enterprise data, software development practices and/or product management/ownership, including 4+ years delivering AI/ML or data products, with a track record of taking solutions to scaled production.
Principal Hardware Design Engineer RTX CorpPrincipal Hardware Design EngineerTewksbury, MAThese design efforts will include collaboration with systems engineers, mechanical engineers, manufacturing engineers, and other electrical engineers to perform design trades and requirements flow down, perform electrical analysis, develop test plans, and ultimately to deliver working hardware that meets program requirements. Experience working in a laboratory environment using logic analyzers, oscilloscopes, phase noise analyzer (PNA), and spectrum analyzer to test and verify the functions of digital and mixed signal circuits and systems.
Generator Systems Principal Electrical Engineer RTX CorpGenerator Systems Principal Electrical EngineerMarlborough, MAThe department is responsible for design engineering, product and production support in the following areas: Electric Generator controls & operation engineering for wound-field synchronous generators and excitation controls for both stationery and mobile applications in the range of 30 kW to 3000 kW. Control Systems - Servo Control Systems, Motor/Power/Process Control, Digital Feedback Systems, Design of systems using MATLAB Simulink for power system simulations.
Principal Software Engineer, Onsite RTX CorpPrincipal Software Engineer, OnsiteMarlborough, MACollins Aerospace, an RTX company, is a leader in engineering and proposal teams to successfully execute programs and prepare responsive proposals aimed at making the world a safer place. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
Principal Software Engineer BAE Systems PlcPrincipal Software EngineerHudson, NH$118,095–$200,762 / yearAbout BAE Systems Electronic Systems BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. When you join our engineering group, you will be a key technical leader, mentoring other engineers and collaborating with Systems, Hardware, and Test engineers throughout the software development lifecycle - from Requirements Development to Design, Coding, Integration, and Testing.
Principal Financial Analyst, FP&A (P3) *HYBRID* RTX CorpPrincipal Financial Analyst, FP&A (P3) *HYBRID*Tewksbury, MASupport the organization through various weekly, monthly, quarterly, and annual routines including the following: Annual Operating Plan (AOP), Long Range Plan (LRP), Investment Planning, Monthly Operation Reviews, Monthly Forecast Reviews, and Balance Sheet Reviews. Typically will have a Bachelor's degree in Finance, Accounting, Economics, Business Administration, Mathematics, or related discipline and a minimum of 5 years of relevant experience, or an advanced degree and a minimum of 3 years of applicable experience.
NewPrincipal Software Engineer - Air Traffic Solutions (Onsite) RTX CorpPrincipal Software Engineer - Air Traffic Solutions (Onsite)Marlborough, MAOur Connected Aviation - Air Traffic Solutions - Software Engineering Department (ATS-SED) is looking for a talented experienced Principal Software Engineer to join our team developing and supporting our Air Traffic Control Systems worldwide. Qualifications You Must Have: Requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
Principal Electrical Design & Production Product Lead RTX CorpPrincipal Electrical Design & Production Product LeadTewksbury, MAAs part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills.
Principal - Cloud Engagement Lead, Microsoft - Healthcare and Life sciences EPAM Systems IncPrincipal - Cloud Engagement Lead, Microsoft - Healthcare and Life sciencesBoston, MABuild deep, durable relationships with Microsoft account teams, industry teams, and M1/M2 leadership; conduct joint account planning, schedule recurring cadences, meet face-to-face, and lead joint customer events (including ABM-style executive sessions for top accounts). Act as pursuit leader and player-coach on strategic deals, coordinating solution architects, practice leaders, delivery leadership, and pricing and commercial teams to deliver clear value articulation, competitive differentiation, and strong executive messaging.
HP&S Principal Specialist Program Cost Control Analyst RTX CorpHP&S Principal Specialist Program Cost Control AnalystTewksbury, MAThe selected candidate will have exposure to various functional senior leaders and will work closely with the Program Manager, Integrated Product Team Leads, Control Account Managers, Engineering Business Analysts, Planning & Scheduling, and functional support leads on making sound financial, contractual, and resource decisions for the program. Analyze key financial data that will enable sound program decision making; this includes earned value cost and schedule metrics, latest revised estimates (LRE), estimates at complete (EACs), program investments, and manpower planning.
Principal Specialist, FP&A *HYBRID* RTX CorpPrincipal Specialist, FP&A *HYBRID*Tewksbury, MAYou will play a key role in enabling data‑driven decisions by providing accurate financial reporting, driving analytical rigor, and supporting core planning and forecasting processes across Raytheon. At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems.
Principal Embedded Software Engineer RTX CorpPrincipal Embedded Software EngineerMarlborough, MARTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills. At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems.
Principal Systems Engineer - XBR Product Owner RTX CorpPrincipal Systems Engineer - XBR Product OwnerWoburn, MARTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills. Partner closely with XBR SW and SE development teams to ensure on-time, high-quality delivery of team products and services, escalating concerns as needed to XBR IPT and CPT.
Principal Software Engineer (Health100 Platform) CVS Health CorpPrincipal Software Engineer (Health100 Platform)MA$144,200–$288,400 / yearServe as senior technical authority for high‑impact initiatives, guiding architecture, shaping engineering processes, and ensuring consistent, high‑quality delivery across teams and partners. Define platform direction and roadmaps by collaborating with engineering leadership, product teams, and the open‑source community, influencing frameworks and core system design.
Principal Research Scientist - Frontier Industrial AI AVEVA Group LtdPrincipal Research Scientist - Frontier Industrial AImassachusetts, MA$213,500–$355,500 / yearThis pay range represents the minimum and maximum compensation that the position offers, and final compensation can vary within the range depending on work location, job experience, skills, and relevant educational attainment and/or training. Our cutting-edge solutions are used by thousands of enterprises to deliver the essentials of life - such as energy, infrastructure, chemicals, and minerals - safely, efficiently, and more sustainably.
Principal Recruitment Consultant Phaidon International UK LtdPrincipal Recruitment ConsultantBoston, MAWe partner with industry-leading organizations across Life Sciences, Financial Services, Technology, Energy, Infrastructure, and Supply Chain, delivering talent solutions for business-critical hiring needs. This is a senior individual contributor opportunity designed for a top-performing recruiter who wants to continue building a highly successful desk while establishing themselves as a market leader within the Life Sciences space.
C5I Principal Platform Engineer RTX CorpC5I Principal Platform EngineerTewksbury, MAThis role requires deep DevSecOps expertise, technical leadership and the ability to influence architecture and engineering strategy across multiple teams. As a senior leader on our team, you will shape platform architecture, drive modernization and ensure delivery of robust capabilities that support real‑time mission execution across programs.
Principal Scientist I or II, PK Sciences Therapeutic Areas (Multiple Listings) Novartis AGPrincipal Scientist I or II, PK Sciences Therapeutic Areas (Multiple Listings)Cambridge, MA$108,500–$201,500 / yearA minimum of 0-2 years of experience in drug discovery and/or development in a relevant environment (academia, CRO, biotech or Pharma).• 2+ years of experience preferably in a lead role overseeing ADME/DMPK project strategy, either in discovery or clinical development to be considered for Principal Scientist II• Extensive and in-depth knowledge of pharmacokinetics including, drug metabolism and PK/PD evaluation, experience in working in project teams (preferably global) as well as sound awareness of recent developments in drug development and regulatory sciences.• • Works in close collaboration with clinicians and clinical development colleagues to integrate PKS insights into study design, data interpretation, and project decision‑making• Use of Artificial intelligence (AI) / Machine Learning (ML) approaches to enable model guided molecular design, preclinical and clinical data automation, authoring regulatory documents, and the use of predictive modelsThis role reports to Therapeutic Area group in PK Sciences within Translational Medicine (TM) in Biomedical Research.
Principal AI/ML Researcher Whoop IncPrincipal AI/ML ResearcherBoston, MA$270,000–$300,000 / yearDeep expertise in modern deep learning (transformers, state space models), multimodal training, self-supervised and representation learning, RL-based post-training (PPO/DPO/GRPO), and large-scale distributed training (data, model, and context parallelism). At WHOOP, we view total compensation as the combination of base salary, equity, and benefits, with equity serving as a key differentiator that aligns our employees with the long-term success of the company and allows every member of our corporate team to own part of WHOOP and share in the company's long-term growth and success.