NXE Production Engineering Senior Group Lead ASML Holding NVNXE Production Engineering Senior Group LeadWilton, CTmechanical / electrical / optical / chemical / industrial engineering, mechatronics, physics, or related field) with 10 years (BS) or 8+ years (MS) of relevant work experience in in a technical environment such as quality, manufacturing engineering, or related fields depending on internship experience, and leading a team of matrixed individuals, or 4+ yrs experience managing direct or indirect reports. The Module Production Engineering Group Lead provides leadership across multiple teams or a broader module scope, shaping and executing the mid‑ to long‑term engineering direction needed to support Wilton factory performance.
Seasonal, Operations Technical Specialist (Part Time) H&R BlockSeasonal, Operations Technical Specialist (Part Time)WHITE PLAINS, New York$19.28–$28.89 / hourFull timeWorking closely with District Operations Coordinators (DOCs), Technology Implementation Analysts (TIAs), and field leadership, you’ll play a critical role in successful office openings, daily operations, and seasonal closures. Perform routine building maintenance such as replacing light bulbs and ceiling tiles, cleaning HVAC vents, repairing minor physical damage, resolving minor plumbing issues, and conducting minor low-voltage electrical work.
Pathology Clinical Intake Manager and Digital Pathology Operations Lead Yale UniversityPathology Clinical Intake Manager and Digital Pathology Operations LeadNew Haven, CT$92,000–$146,750 / yearThis position oversees and manages all aspects of high-level clinical and administrative support for Anatomic and Clinical Pathologists and their teams, ensuring seamless relationships with the following areas at YSM: Case Management, Laboratories Academic Offices and Research offices. Operationally, this role is responsible for Managing the team that completes the following critical work for the department: Coordinating the administrative aspects of specimen handling, requests for additional materials, and case management resolution, as well as obtaining and organizing required information from referring hospitals and providers.
Pathology Clinical Intake Manager And Digital Pathology Operations Lead Yale UniversityPathology Clinical Intake Manager And Digital Pathology Operations LeadNew Haven, CT$92,000–$146,750 / yearThis position oversees and manages all aspects of high-level clinical and administrative support for Anatomic and Clinical Pathologists and their teams, ensuring seamless relationships with the following areas at YSM: Case Management, Laboratories Academic Offices and Research offices. Operationally, this role is responsible for Managing the team that completes the following critical work for the department: Coordinating the administrative aspects of specimen handling, requests for additional materials, and case management resolution, as well as obtaining and organizing required information from referring hospitals and providers.
Scientist Technical Performance Insights Sensory Testing Henkel AG & Co KGaAScientist Technical Performance Insights Sensory TestingTrumbull, CT$75,000–$85,000 / yearHenkel holds leading positions in both industrial and consumer businesses: Our portfolio includes well-known hair care products, laundry detergents, fabric softeners as well as adhesives, sealants, and functional coatings. Family Support: 12-week gender neutral parental leave (up to 20 weeks for parents giving birth), fertility support, adoption & surrogacy reimbursement, discounted child and elderly care, and scholarships.
Technical Implementation Consultant Itron, Inc.Technical Implementation Consultantsouth kent, CTThe Technical Implementation Consultant serves as the technical owner of implementation workstreams, partnering closely with Customer Success, Product, and Engineering to deliver high‑quality customer deployments. Lead the technical implementation workstream for enterprise customer deployments from kickoff through go‑live, demonstrating accountability for delivery quality and outcomes.
Environmental, Health & Safety Compliance Team Lead WSP Global IncEnvironmental, Health & Safety Compliance Team LeadShelton, CTAny unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation - no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service. This role is intended for a seasoned compliance specialist who can independently manage complex compliance projects, serve as a trusted advisor to clients, and mentor junior staff while contributing to continued business growth.
Transportation Engineering- Practice Lead SLR Consulting LtdTransportation Engineering- Practice LeadNew Haven, CT$200,000–$230,000 / yearThe Practice Leader will support project delivery, mentor technical staff, and drive quality management while partnering with service line leadership to strengthen and grow our transportation practice. We deliver sustainable design solutions for our clients through the integration of over 30 advisory, technical environmental, and engineering disciplines to address some of their most complex challenges.
Transportation Engineering- Practice Lead SLR ConsultingTransportation Engineering- Practice LeadCheshire, CT$200,000–$230,000 / yearThe Practice Leader will support project delivery, mentor technical staff, and drive quality management while partnering with service line leadership to strengthen and grow our transportation practice. We deliver sustainable design solutions for our clients through the integration of over 30 advisory, technical environmental, and engineering disciplines to address some of their most complex challenges.
QA Manager / QA Lead 2Bridge PartnersQA Manager / QA LeadNew City, New York2Bridge has been engaged in the search for a Quality Engineering Lead supporting a technology-focused organization operating in performance-sensitive environments. Partner closely with engineering and product teams on test strategy and release readiness.
Lead Software Engineer (Conference Navigator) GartnerLead Software Engineer (Conference Navigator)Stamford, CTYou will partner closely with your manager, product leaders, QA, analytics, and global engineering teams to proactively reduce incidents, improve system resilience, and ensure conference readiness. Our mission relies on expert analysis and bold ideas to deliver actionable, objective business and technology insights, helping enterprise leaders and their teams succeed with their mission-critical priorities.
AV Lead Technician Project Manager Bergen County Almera Tech ServicesAV Lead Technician Project Manager Bergen CountyWestwood, NJFull timeWe are seeking an experienced Senior Home Technology Installer & Project Manager to lead residential audio, video, networking, smart home, and CCTV projects from pre-wire through final commissioning. This role is ideal for a highly skilled technician who is ready to take ownership of projects, lead field teams, interface with clients and builders, and ensure exceptional execution and customer satisfaction.
Lead RPA Developer Assa Abloy ABLead RPA DeveloperNew Haven, CTStrong experience in automating SAP, legacy, and mainframe applications, including SAP GUI transactions and terminal-based systems, using UI automation, selectors, and screen-based automation techniques for enterprise workflows. Your expertise in RPA development, automation best practices, and intelligent automation (including Agentic Automation and Document Understanding) will contribute to building reliable, efficient, and secure digital processes.
Lead Project Manager Westchester Medical Center Health NetworkLead Project ManagerValhalla, NY$110,564–$138,996 / yearJob Details: Job Summary: As the Lead Project Manager within our Information Technology team, you will provide expert leadership in managing our most critical and complex technical programs and project portfolios, which encompass operational improvement and transformation initiatives, special operational implementations, and core IT projects. Strategic Risk Management: Oversee risk management across project portfolios, including identifying and mitigating risks associated with external dependencies and task ownership; develop sophisticated mitigation strategies and handle complex, high-level escalations.
Senior Digital Tech Lead Vets HiredSenior Digital Tech LeadOrange, ConnecticutThis role blends strategic technical leadership with hands-on mobile engineering expertise to lead the architecture, development, and delivery of native mobile applications across iOS and Android platforms. The ideal candidate brings deep expertise in either Swift or Kotlin with strong working knowledge of both ecosystems, enabling consistent, scalable, and high-quality mobile solutions.
Manager Tech Lead Web US Philip Morris International IncManager Tech Lead Web USStamford, CT$132,000–$165,000 / yearWorking in partnership with the Principal Solution Architect, this role ensures that architectural designs are translated into production-ready solutions while maintaining technical consistency, scalability, reliability, and business value delivery. Since 2008, PMI has invested $12.5 billion globally to develop, scientifically substantiate and commercialize innovative smoke-free products for adults who would otherwise continue to smoke with the goal of transitioning legal-age consumers who smoke to better alternatives.
Senior Manager, Product Management - Delivery & Operations Product Lead - Medical Affairs Domain Regeneron PharmaceuticalsSenior Manager, Product Management - Delivery & Operations Product Lead - Medical Affairs DomainArmonk, NY$134,400–$219,200 / yearTechnical Experience and ability to Partner with data science and integration teams to build, validate, and operationalize AI solutions using APIs, middleware, and AI/ML platforms (e.g., NLP, large language models, predictive analytics). In this role, a typical day might include the following: Lead detailed business and technical requirements' analysis for Veeva Medical CRM, Veeva Medical Vault and Medical Affairs systems, translating Medical processes into scalable, complaint system designs.
Senior Digital Tech Lead Iberdrola SASenior Digital Tech LeadOrange, CT$128,320–$160,400 / yearLead Through Complexity: Serve as the technical leader on large, complex initiatives-solving challenging problems, guiding architectural decisions, and ensuring system improvements are successfully implemented and monitored. Applies deep knowledge of front‑end architecture to design scalable, reusable solutions that support both web and mobile applications, including responsive layouts, performance optimization, state management, offline capabilities, and application security.
Scientist Lead (Research and Development) The Cooper Companies IncScientist Lead (Research and Development)Trumbull, CT$158,570–$211,426 / yearProvide ownership and technical oversight of Design History Files (DHFs), ensuring alignment with product lifecycle activities, regulatory expectations, and design control requirements; lead updates, gap assessments, and audit readiness. The individual collaborates cross-functionally to translate scientific insights into scalable, manufacturable, and compliant solutions, while contributing to the long-term technical roadmap and competitive positioning of the IVF portfolio.
Advanced Cyber Threat Response & Forensics Lead/Manager Deloitte Touche Tohmatsu LtdAdvanced Cyber Threat Response & Forensics Lead/ManagerStamford, CT$134,500–$265,100 / yearChampion Cyber Crisis & Incident Response Solutions: Champion the development of Deloitte's Cyber Defense & Resilience market offerings around Crisis & Incident Response and Technical Resilience, ensuring alignment with industry best practices, leading technologies, and evolving client needs related to risk and threats. Our services help organizations to address, in a timely manner, pervasive issues, such as identity theft, data security breaches, data leakage, cyber security, and system outages across organizations of various sizes and industries with the goal of enabling ongoing, secure, and reliable operations across the enterprise.
Epic Patient Access Lead Tech FireflyEpic Patient Access LeadTarrytown, NYRemoteThis individual will serve as the technical lead for the Patient Access team, providing hands-on build expertise while mentoring newly certified analysts throughout the project. We are seeking an experienced Epic Patient Access Lead to support its Epic implementation through the end of the year.
NewLead Project Manager Kforce Inc.Lead Project ManagerArmonk, NYRemote$75–$80The core technology landscape includes Salesforce Energy and Utilities Cloud, Service Cloud, Sales Cloud, Data Cloud, OmniStudio including OmniScript, the Salesforce Clean Energy Module, SAP BTP integrations, customer-facing APIs, data migration, security and privacy, quality engineering, and enterprise release management. Summary: The program is modernizing customer service and clean-energy program capabilities, replacing legacy Salesforce environments, preserving required business logic, and reducing technical debt through a clean future-state architecture.
Manager Clinical Study Lead Regeneron Pharmaceuticals IncManager Clinical Study LeadArmonk, NY$128,600–$210,000 / yearAssigns tasks to Clinical Study Management staff and supports their deliverables; directly supervises CTM staff (work assignments, performance management, recruitment, professional development, coaching, mentoring, ongoing training and compliance, and study support/oversight); recommends and participates in cross-functional and departmental process improvements; and identifies innovative, globally informed approaches to study execution and continuous improvement of CTM SOPs. Discover your role: Leads the cross-functional study team responsible for clinical study delivery, serving as the primary point of contact for leadership and oversight, and oversees execution against planned timelines, deliverables, and budget while raising issues (conduct, quality, timelines, budget) to the Program Operations Lead and stakeholders and implementing corrective actions.
Manager, Clinical Study Lead Regeneron PharmaceuticalsManager, Clinical Study LeadArmonk, NY$128,600–$210,000 / yearAssigns tasks to Clinical Study Management staff and supports their deliverables; directly supervises CTM staff (work assignments, performance management, recruitment, professional development, coaching, mentoring, ongoing training and compliance, and study support/oversight); recommends and participates in cross-functional and departmental process improvements; and identifies innovative, globally informed approaches to study execution and continuous improvement of CTM SOPs. Discover your role: Leads the cross-functional study team responsible for clinical study delivery, serving as the primary point of contact for leadership and oversight, and oversees execution against planned timelines, deliverables, and budget while raising issues (conduct, quality, timelines, budget) to the Program Operations Lead and stakeholders and implementing corrective actions.
Lead Product Manager GXO Logistics IncLead Product ManagerGreenwich, CTWhat you need to succeed at GXO: At a minimum, youll need: Bachelors degree in Information Systems, Computer Science, Engineering, Data Science, Business, or a related field, or equivalent combination of education and experience. Youll partner with business leaders, data scientists, engineers, and technology teams to transform complex business challenges into scalable AI solutions that deliver measurable value.
NewDigital Grid Modernization Lead, Senior Manager PricewaterhouseCoopers LLPDigital Grid Modernization Lead, Senior ManagerStamford, CT$124,000–$280,000 / yearYou will monitor vendor compliance with contractual agreements for service quality, availability, and reliability, manage the business and delivery of services, and lead service recovery in case of major incidents. As a Digital Grid Modernization Lead, Senior Manager, you will play a pivotal role in overseeing and confirming the delivery of quality and timely services within our Information Technology Operations practice.
Lead Architect Vets HiredLead ArchitectOrange, ConnecticutThe Lead Analyst oversees solution design, configuration, mobile and offline workflow support, integrations, and complex issue resolution across desktop and field-based application environments, ensuring high-quality delivery and long-term operational reliability. The Lead Analyst – Applications is a senior technical and functional role responsible for the stability, roadmap, and continuous improvement of critical enterprise applications and overall applications architecture.
Lead Mammography Technologist #Full Time 61st Street Service CorpLead Mammography Technologist #Full TimeWhite Plains, NY$60–$72.48 / hourThe incumbent will perform all duties associated with acquisition, processing, submission for interpretation, and archiving of mammography and bone density studies as requested by referring physician and consistent with the facility’s guidelines, and will be responsible for the care of the patient while in the imaging area. A minimum of 5 years’ relevant experience, including 1-year minimum in a senior or lead technologist role; exposure to a wide range of mammography and bone density studies required.
Lead CT Technologist #Full Time 61st Street Service CorpLead CT Technologist #Full TimeScarsdale, NY$67.31–$72.51 / hourDemonstrated leadership proficiency in a team environment, including communication, training/knowledge-sharing, coordination, delegation, and problem-solving skills. ColumbiaDoctors’ practices comprise an experienced group of more than 2,800 physicians, surgeons, dentists, and nurses, offering more than 240 specialties and subspecialties.
Team Lead (Remote) Atlas TechnicaTeam Lead (Remote)Stamford, CTRemoteThe Team Lead will serve as an escalation point, provide technical guidance, oversee client-facing projects, and help strengthen the processes and services delivered by Atlas Technica. The ideal candidate will have at least two years of people-management experience and five years of professional IT experience in desktop support, systems engineering, systems administration, or a related technical function.
Commercial Lead HVAC Service Technician Work With Your HandzCommercial Lead HVAC Service TechnicianDanbury, CT$30–$45 / hourLead and execute advanced diagnostics, repairs, and preventative maintenance on complex commercial HVAC equipment (5+ tons), including chillers, boilers, VRF systems, air handlers, and roof-top units (RTUs). In your role as the Commercial Lead HVAC Service Technician, you will be the senior technical authority for diagnosing, repairing, and maintaining large-scale commercial heating, cooling, and ventilation systems.
Senior Product Manager - Delivery & Operations Product Lead - Business Process Management Regeneron PharmaceuticalsSenior Product Manager - Delivery & Operations Product Lead - Business Process ManagementArmonk, NY$134,400–$219,200 / yearGlobal Development Information Technology (GD IT) is seeking an outstanding Senior Product Manager to lead product delivery for innovative Business Process Management (BPM) applications that transform the way clinical studies are developed, planned, and assessed. In order to be considered for this role, you must have: BS/BA with 8-10 years proven experience (or MS/MBA with 6+ years as an equivalent), including 3 years in enterprise SaaS and 1+ year delivering generative/agentic AI solutions.
Chat Platform Lead Point72, L.P.Chat Platform LeadStamford, CT8 years of experience working with enterprise chat platforms in regulated environments, with 5 years administering chat platforms in production, including federation, regulated data workflows, bot frameworks, and API integrations. As a member of Point72's Technology team, we encourage and support your professional development from day one-helping you advance your technical skills, contribute innovative ideas, and satisfy your own intellectual curiosity-all while delivering real business impact for our multi-billion-dollar global business.
Maximo 9.2 Data Migration Lead Kforce Inc.Maximo 9.2 Data Migration LeadArmonk, NYRemote$90–$100Have hands-on experience with modern cloud-based data platforms, including Microsoft Fabric, Azure Data Factory, Azure Data Lake, Azure Synapse, Databricks, and other enterprise ETL/data integration technologies. Design and oversee extraction, transformation, and load (ETL) processes to migrate data from legacy Asset Management, Work Management, ERP, GIS, and related operational systems into IBM Maximo.
Lead Engineer Blt Management LLCLead EngineerStamford, CTFull timeThis position serves as the senior member of the engineering team, providing hands-on technical expertise while assisting the Chief Engineer with daily operations, preventative maintenance, vendor coordination, and team support. The Lead Engineer works alongside the engineering staff to ensure building systems operate safely, efficiently, and reliably while maintaining a first-class environment for tenants.
Team Lead CISCO Network Engineer Top Prospect Group LLCTeam Lead CISCO Network Engineerstamford, CT$150,000–$180,000 / yearFT Direct Hire $150-180K plus excellent benefits Hybrid in CT Cisco, team leadership, routing, switching, firewalls, VPN, enterprise network solutions . Take the next step in your career by leading high-impact network initiatives, mentoring engineers, and shaping the future of a modern enterprise infrastructure.
Lead, Digital Product Manager- R&D Entegris IncLead, Digital Product Manager- R&DDanbury, CT$125,500–$157,500 / yearWorking closely with IT, external technology partners, R&D users, and cross-functional digital teams, you will ensure EDIP and related digital solutions are designed, tested, deployed, adopted, and improved in ways that deliver measurable business value. The ideal candidate brings strong product ownership, scientific workflow understanding, stakeholder management, and execution discipline, with the ability to coordinate complex workstreams across data, AI, modeling, applications, integration, and user experience.
Lead Building Engineer BGSF IncLead Building EngineerWilton, CT$90,000–$135,000 / yearProvide direct oversight of periodic inspections and preventative maintenance programs for mechanical, electrical, and plumbing systems across the sites, including supplemental cooling and power for Client IDFs and MDFs, ensuring consistent execution whether self-performed or delivered through third-party resources, in line with manufacturer specifications and portfolio KPIs. Maintain a sound working knowledge of building mechanical, electrical, plumbing, life safety, fire protection, and security systems portfolio-wide, ensuring 24/7 operations and acting as the point of escalation to promptly resolve any disruption in building services at any of the client's locations.
SOC Lead (Remote or Onsite) Crane CompanySOC Lead (Remote or Onsite)Stamford, ConnecticutRemoteAs the ideal candidate, you will have solid proficiency in security incident and event management solutions, using modern IR approaches and tools, and have a proven track record implementing and honing a myriad of detective and preventive controls and processes in an enterprise setting. You will customize, develop, and implement the automation of security playbooks using APIs, various scripting methods and programming languages, and provide analytical techniques to build and support interfaces to and from various supporting technologies, tools, and IT systems.
SOC Lead (Remote Or Onsite) Crane Co.SOC Lead (Remote Or Onsite)Stamford, CTRemoteAs the ideal candidate, you will have solid proficiency in security incident and event management solutions, using modern IR approaches and tools, and have a proven track record implementing and honing a myriad of detective and preventive controls and processes in an enterprise setting. You will customize, develop, and implement the automation of security playbooks using APIs, various scripting methods and programming languages, and provide analytical techniques to build and support interfaces to and from various supporting technologies, tools, and IT systems.
Commercial Cleaning Services Team Lead Filta - Monroe, CT - Main StCommercial Cleaning Services Team LeadMonroe, CTFull timeSafe Driver - Technicians are required to obey all speed limits and advise the franchise owner in the event of scheduling conflicts that would cause an unsafe driving condition. The basic function of the Technician position is to provide mobile fryer management services to existing and future commercial kitchen customers on an established route.
Lead Analyst Vets HiredLead AnalystOrange, ConnecticutThe Lead Analyst – SAP Support is a senior-level IT role responsible for leading the analysis, design, implementation, integration, and ongoing support of enterprise SAP and business applications. Working with limited supervision, this position delivers high-quality technical solutions that align with business and regulatory requirements while providing strategic consultation to internal stakeholders.
NewLead Forward Deployed Engineer, Snowflake DeloitteLead Forward Deployed Engineer, SnowflakeStamford, CT$223,700–$372,900 / yearAs a Lead ServiceNow FDE, you will serve as the senior practitioner-leader embedded directly with our most strategic clients, leading forward-deployed engineering pods that develop and deploy GenAI solutions into production for Deloitte's most strategic clients. At Deloitte, Forward Deployed Engineers (FDE) don't just build AI solutions, they help clients turn AI ambition into enterprise-scale impact, pairing leading class engineering with pod-based delivery and vertical expertise.
Appian Lead Developer MaximusAppian Lead DeveloperBridgeport, CTRemoteFull timeMaximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. If you require assistance at any stage of the employment process-including accessing job postings, completing assessments, or participating in interviews,-please contact People Operations at applicantaccom@maximus.com .
Lead Engineer, Substation K&A EngineeringLead Engineer, SubstationOrange, CT$115,000–$130,000 / yearProven experience in Substation Design should include general arrangement, electrical equipment, plans, elevation and section views, Equipment cable trays, cable design, conduit fill calcs, rigid bus calcs, grounding and conduit layouts, control schematics, wiring diagrams. K&A Power Group – is a privately held engineering firm delivering worldclass technical expertise and engineering excellence to power utility and industrial clients across the United States, Asia, the Middle East, and Africa.
Lead System Analyst Westchester Medical Center Health NetworkLead System AnalystValhalla, NY$100,288–$126,089 / yearJob Category Job Category Advanced Clincial Providers Advanced Practice Providers Allied Health Prof/Technical Clerical/Administrative Support clerical/Administrative Supportc Executive/Management Finance/Info Systems Nursing Support Nursing/Nursing Management Physicians Professional/Non-Clinical Service/Trades. Company Company Bon Secours Charity Medical Group Bon Secours Community Hospital Good Samaritan Hospital HealthAlliance Hospital Margaretville Hospital MidHudson Regional Hospital Mountainside Residential Care Center NorthEast Provider Solutions Inc.
Lead Cardiovascular Invasive Specialist TEEMA GroupLead Cardiovascular Invasive SpecialistWhite Plains, NY$84,000–$124,557Operational Leadership: Provide daily oversight of room assignments and staffing coordination; assist with schedule adjustments to ensure smooth lab operations during high-volume or emergency periods. Inventory & Vendor Relations: Manage high-cost devices and procedural supplies in collaboration with Materials Management; coordinate equipment trials and staff education with vendors.
Client Partner Lead WPP ProductionClient Partner LeadNew City, NY$60,000–$140,000 / yearWe unite cutting-edge media intelligence and data solutions, world-class creativity, next-generation production, transformative enterprise solutions and expert strategic counsel in a single company – powered by exceptional talent and our agentic marketing platform, WPP Open, to help our clients navigate change, capture opportunity and deliver transformational growth. As a Client Partner Lead at WPP Production Health Studios, you are a critical leader responsible for both driving the successful delivery of complex production programs for a dedicated therapeutic area or client portfolio and mentoring a high-performing team of Client Partners.
Manufacturing Engineering Team Lead CACI International Inc.Manufacturing Engineering Team LeadDanbury, CT$86,600–$181,800 / yearPay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Responsibilities:- Provide technical input on various projects or serve as the lead Manufacturing Engineer on the Integrated Product Team (IPT), including tooling/fixture design, manufacturing work instruction development, and shop floor support.-
NewCoating Engineering Team Lead CACI International IncCoating Engineering Team LeadDanbury, CT$103,800–$218,100 / yearResponsibilities: Provide technical input on various projects or serve as the lead Coating Engineer on the Integrated Product Team (IPT), including tooling/fixture design, coating design and development, manufacturing work instruction development, and shop floor support. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.