Principal Electrical & Electronics (E&E) Engineer - Test Solutions - Onsite (Tewksbury/Andover, MA) RTX CorpPrincipal Electrical & Electronics (E&E) Engineer - Test Solutions - Onsite (Tewksbury/Andover, MA)Tewksbury, MAOur engineers work hands‑on with the latest test instrumentation, software, and automation technologies to integrate state‑of‑the‑art test capabilities for some of the most advanced engineering systems in the world. Qualifications You Must Have: Typically requires Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of eight (8) years of prior relevant experience OR an Advanced degree and five (5) years of relevant experience.
Principal Client Partner, Enterprise Sales - New England T-Mobile US IncPrincipal Client Partner, Enterprise Sales - New EnglandMA$199,500–$360,000 / yearYou will be responsible for driving new business acquisition and deepening strategic relationships within the Fortune 1000, including multinational and internationally headquartered corporations navigating complex, large-scale technology decisions. Knowledge, Skills and Abilities: Enterprise Solutions Expertise: Deep fluency in crafting technology solutions that align with both business strategy and operational priorities at Fortune 1000 scale.
NewPrincipal Platform Engineer InterSystemsPrincipal Platform EngineerBoston, MassachusettsAs a Principal Platform Engineer, you will serve as a hands-on technical leader, solving complex engineering challenges, shaping technical direction, and leading initiatives that improve developer productivity, platform reliability, and software delivery across the company. Our data platforms solve interoperability, speed, and scalability problems for large organizations around the globe to unlock the power of data and allow people to perceive data in imaginative ways.
Agentic AI Machine Learning Architect - Senior Principal Slalom IncAgentic AI Machine Learning Architect - Senior PrincipalBoston, MA$215,000–$275,000 / yearDefine secure, scalable, cloud-native and hybrid reference architectures across AWS, Azure, and Google Cloud, including modern AI platform services such as Amazon Bedrock, Azure AI Foundry, Google Vertex AI, and enterprise data platforms. Experience defining agentic AI architecture patterns, including single-agent and multi-agent workflows, supervisor/worker patterns, state and memory management, workflow orchestration, human approval gates, and safe action execution.
Principal Architect, DevSecOps Wolters Kluwer N.V.Principal Architect, DevSecOpsWaltham, MA$160,100–$286,000 / yearThe Principal Architect partners closely with DXG leadership and the GBS team to own CI/CD pipeline architecture, security integration, DevSecOps tooling strategy, and engineering adoption, while jointly governing the DevSecOps maturity model across the enterprise. Proven track record designing and scaling CI/CD pipeline architecture and DevSecOps practices in large, complex engineering organizations, hands-on architecture and implementation ownership, not advisory roles.
Suitability Principal Massachusetts Mutual Life Insurance CompanySuitability PrincipalProvidence, RI$69,000–$90,500 / yearThrough risk identification, supervisory oversight, and expert consultation, you will drive sound business decisions, support compliant growth, and strengthen the firm's risk management framework while serving as a trusted partner to advisors, compliance teams, and business leaders. The Opportunity: As a Suitability Principal you will conduct back-office review and firm-acceptance of new and existing business and account maintenance submissions as well as suitability reviews for accounts clearing through National Financial Services (NFS).
Principal AI/ML Researcher WhoopPrincipal AI/ML ResearcherBoston, MassachusettsDeep 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.
Principal Consultant AppianPrincipal ConsultantBoston, MA$100,000–$225,000 / yearKnowledge of software testing practices (test-driven development, automated test suites within a continuous integration framework); integrations experience using APIs such as REST and SOAP, JDBC connections, and web services; familiarity with Amazon Web Services (AWS), Artificial Intelligence (AI), Analytics, Machine Learning, Google Cloud, Application Integration, Database, Developer Tools, Management & Governance, and Elastic Containers is preferred. This includes working within an agile environment to understand our client's business processes and technical needs, launch new relational data models in production, developing APIs to integrate with multiple systems, partnering with Appian Architects and Technical Delivery Managers, and leading/mentoring consultants through fast-paced software implementations.
Positively Partners Principal Consultant, Organizational Effectiveness Positively PartnersPositively Partners Principal Consultant, Organizational EffectivenessSouth Attleboro, Fully Remote (US)RemoteMany consulting engagements occur alongside broader partnerships delivered through PositivelyHR, our subscription-based outsourced HR service providing embedded HR leadership, systems, compliance, payroll administration, and day-to-day people support. As a Principal Consultant, Organizational Effectiveness, you will serve as a trusted advisor to nonprofit executives, partnering with leaders to solve complex organizational challenges and build stronger, healthier workplaces.
Principal Ai/Ml Researcher WhoopPrincipal 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.
Principal Carelon Research Biostatistician Elevance HealthPrincipal Carelon Research BiostatisticianNewton, MassachusettsThis researcher partners with investigators, research sponsors, academic institutions, and cross-functional project teams to design studies, develop statistical methodologies, oversee analytical execution, and communicate scientific findings that advance externally funded clinical research programs. The Principal Carelon Research Biostatistician is responsible for serving as the statistical lead for complex clinical research studies and represents an analytical thought leader across Carelon Research's clinical research portfolio.
Principal Noise Consultant AcentechPrincipal Noise ConsultantCambridge, MA$115,000–$145,000 / yearAcentech, a multidisciplinary design consulting firm specializing in acoustics, vibration, audiovisual systems, IT and security system design seeks to hire a senior- to principal-level consultant to work with our Noise and Vibration team. We foster a collaborative environment of diverse talent, and encourage people of color, lesbian, gay, bisexual, transgender, queer and non-binary people, neurodivergent, veterans, parents, and individuals with disabilities to apply.
Principal Program Scheduler Torch Technologies, Inc.Principal Program SchedulerHanscom Air Force Base, MA$145,000–$160,000 / yearBy enabling aircrews to electronically receive and process tasking orders, intelligence inputs, target coordinates, and mission‑critical flight and weapons data, MPS enhances combat effectiveness, increases sortie generation rates, and improves aircrew readiness and survivability across the Combat Air Forces (CAF) and Mobility Air Forces (MAF). Several factors can influence the salary for a position including but not limited to, Federal Government contract labor categories and contract wage rates, geographic location, business considerations, scope and responsibilities of the position, local or other applicable market conditions, and internal equity.
Principal Scientist SanofiPrincipal ScientistWaltham, MA$122.25–$176.58 / hourThe Genomic Medicine Unit (GMU) CMC group at Sanofi is dedicated to the establishment of best-in-class manufacturing platforms to support development of life-changing advanced cell and gene therapy products, including recombinant AAV vectors, lentiviral vectors and cell therapy products. Main responsibilities: Lead scale-up activities from bench scale to pilot scale (200L-2000L), applying engineering principles (mixing, mass transfer, shear stress, dissolved oxygen control) to ensure process comparability at large scale.
Principal Scientist, Antibody Discovery and Engineering ModernaTXPrincipal Scientist, Antibody Discovery and EngineeringCambridge, MassachusettsThis individual will operate with a high degree of independence, scientific judgment, and cross-functional influence while partnering with antigen design, structural and computational biology, Immuno-oncology and Autoimmune Therapeutics research leadership, project teams, and external CRO partners. We are proud to have been recognized as a Science Magazine Top Biopharma Employer, a Fast Company Best Workplace for Innovators, and a Great Place to Work in the U.S. If you want to make a difference and join a team that is changing the future of medicine, we invite you to visit modernatx.com/careers to learn more about our current opportunities.
Principal Scientist, Computational Protein Design ModernaTXPrincipal Scientist, Computational Protein DesignCambridge, MassachusettsWe are proud to have been recognized as a Science Magazine Top Biopharma Employer, a Fast Company Best Workplace for Innovators, and a Great Place to Work in the U.S. If you want to make a difference and join a team that is changing the future of medicine, we invite you to visit modernatx.com/careers to learn more about our current opportunities. This individual will work in close partnership with structural biology, directed evolution, immunology, translational science, and program teams to advance platform innovation and therapeutic programs across Moderna’s Research and Early Development portfolio.
Principal RA Associate Devices Fresenius Medical CarePrincipal RA Associate DevicesWaltham, MassachusettsResponsible for preparing FDA submissions necessary for new product approvals/clearances which include Premarket norifictoins-510(k)s, Premarket Approval Applications (PMAs) and supplements, Investigational Device Exemptions (IDEs) submissions. Serves as the primary regulatory resource for change to and prioritization of projects, resource assignment and efficient management of the development and change processes.
Principal, Data Engineer American TowerPrincipal, Data EngineerWoburn, MADay to day you will design and evolve the enterprise data platform, lead complex solution design, and embed governance enforcement through technical controls. We are seeking a Principal Data Engineer to join American Tower's Information Technology organization's Data & Analytics team.
Principal Scientist, Protein Design ModernaTXPrincipal Scientist, Protein DesignCambridge, MassachusettsThis role will lead the design, execution, and continuous advancement of high-throughput mammalian cell–based screening platforms that interrogate broadly applicable design principles for glycoprotein antigens, enabling antigen optimization, improved expression and durability across multiple programs, and rapid maturation of computationally designed candidates. The candidate in this position will work closely with and report to the Senior Director, Computational Design and In Vitro Selection, and will also work closely with the VP, Protein Design, as well as other members of Research, to advance novel candidates to the clinic, drive exploratory trials to inform the generation of improved vaccine antigens and explore new concepts for mRNA medicines.
Principal FPGA Engineer Ayo SemiconductorPrincipal FPGA EngineerBoston, MassachusettsOur photonic processors will provide orders of magnitude improvement in speed and power efficiency in comparison to conventional digital compute platforms by taking advantage of the natural parallelism, speed and energy efficiency of light. Support the hardware team by performing FPGA trade studies and assessing the viability of proposed pin mappings on developmental circuit card assemblies.