Qureos Mentor

Vizient, Inc.

<div><div><div><div><div>When you&rsquo;re the best, we&rsquo;re the best. We instill an environment where employees feel engaged, satisfied and able to contribute their unique skills and talents while living and working as their authentic selves. We provide extensive opportunities for personal and professional development, building both employee competence and organizational capability to fuel exceptional performance through an inclusive environment both now and in the future.
Summary: 
In this role, you will deliver high-quality, customer-focused end-user support that enhances the digital experience for onsite and remote employees in a high-visibility office environment. You will provide hands-on technical assistance across devices and collaboration tools, support executives with professionalism and discretion, and contribute to smooth onboarding, offboarding, and ongoing technology operations. You will collaborate with cross-functional IT teams, manage service requests to meet SLAs, and participate in continuous improvement initiatives that strengthen the overall employee technology experience.
Responsibilities:<ul><li>
Deliver responsive technical support for onsite and remote employees to ensure positive customer experience.</li><li>
Troubleshoot and support Windows and macOS devices, including hardware, operating systems, applications, peripherals, and mobile technologies.</li><li>
Provide executive-level and high-touch support with urgency, discretion, and professionalism.</li><li>
Manage service requests, incidents, and escalations while maintaining accurate documentation and SLA adherence.</li><li>
Support conference room systems, A/V equipment, and Zoom and Teams collaboration tools, including live meeting assistance.</li><li>
Troubleshoot basic network connectivity issues, including LAN, WLAN, VPN, and physical port activation.</li><li>
Coordinate with infrastructure, security, and engineering teams to resolve complex technical issues.</li><li>
Perform device deployment, imaging, configuration, upgrades, and lifecycle management for end-user equipment.</li><li>
Lead onsite onboarding and offboarding activities, including device provisioning, asset collection, and inventory updates.</li><li>
Participate in IT projects, technology refreshes, and process improvements, contributing to documentation and knowledge articles.</li></ul>
Qualifications:<ul><li>
Relevant degree preferred.</li><li>
2 or more years of relevant experience required.</li><li>
Working knowledge of Windows 10/11 and macOS environments, including configuration and troubleshooting required.</li><li>
Familiarity with networking fundamentals, including TCP/IP, DNS, DHCP, Wi-Fi, and VPN technologies required.</li><li>
Experience supporting enterprise hardware, peripherals, and conferencing or A/V platforms such as Zoom or Microsoft Teams required.</li><li>
Ability to work independently in a fast-paced, high-visibility office environment required.</li><li>
Relevant technical certification(s) such as CompTIA A+, Network+, Apple ACSP/ACTC, or Microsoft certifications highly preferred.</li><li>
Exposure to IT Service Management (ITSM) tools and digital employee management tools preferred.</li><li>
Basic understanding of security best practices, endpoint management tools, or device management platforms such as Intune or Jamf preferred.</li><li>
Experience supporting executive leadership or senior corporate stakeholders preferred.</li><li>
Strong communication, problem-solving, and multitasking skills with a customer-first mindset.</li></ul>
Estimated Hiring Range:
At Vizient, we consider skills, experience, and organizational needs in our compensation approach. Geographic factors may adjust the range estimate and hires typically fall below the top range. Compensation decisions are tailored to individual circumstances. The current salary range for this role is $59,600.00 to $101,200.00.
This position is also incentive eligible.
Vizient has a comprehensive benefits plan! Please view our benefits here:
http://www.vizientinc.com/about-us/careers
Equal Opportunity Employer: Females/Minorities/Veterans/Individuals with Disabilities
The Company is committed to equal employment opportunity to all employees and applicants without regard to race, religion, color, gender identity, ethnicity, age, national origin, sexual orientation, disability status, veteran status or any other category protected by applicable law.</div></div></div></div></div>

End User & Digital Experience Support

<div><div><div><div><div>When you&rsquo;re the best, we&rsquo;re the best. We instill an environment where employees feel engaged, satisfied and able to contribute their unique skills and talents while living and working as their authentic selves. We provide extensive opportunities for personal and professional development, building both employee competence and organizational capability to fuel exceptional performance through an inclusive environment both now and in the future.
Summary: 
In this role, you will support healthcare clients by identifying and resolving accounts payable exceptions to ensure accurate and timely invoice processing. You will review discrepancies, collaborate with vendors and internal teams, and apply contract knowledge to resolve pricing and invoice issues. You will contribute to process improvements, maintain accurate documentation, and deliver high-quality service aligned with client expectations and service level agreements.
Responsibilities:<ul><li>
Review invoice discrepancies and determine appropriate resolution actions.</li><li>
Approve or route discrepancies to appropriate parties to support on-time payment.</li><li>
Escalate issues when parties are unresponsive or resolution is delayed.</li><li>
Investigate and resolve price discrepancies, including non-contract line items.</li><li>
Process requisitions as needed to support procurement workflows.</li><li>
Analyze vendor performance and identify barriers to efficient resolution.</li><li>
Recommend and participate in process improvement initiatives.</li><li>
Review contracts to validate correct pricing and system accuracy.</li><li>
Dispute pricing mismatches and coordinate credit or rebill activities with vendors and accounts payable teams.</li><li>
Document and update discrepancy details using procurement systems and tools.</li></ul>
Qualifications:<ul><li>
Relevant degree preferred.</li><li>
2 or more years of relevant experience required.</li><li>
Strong analytical and problem-solving skills.</li><li>
Knowledge of accounts payable and procurement processes preferred.</li><li>
Ability to interpret contracts and apply pricing terms accurately.</li><li>
Effective written and verbal communication skills.</li><li>
Detail-oriented with strong organizational abilities.</li><li>
Experience with procurement or financial systems preferred.</li><li>
Ability to manage multiple priorities and meet deadlines.</li><li>
Willingness to travel.</li></ul>
Estimated Hiring Range:
At Vizient, we consider skills, experience, and organizational needs in our compensation approach. Geographic factors may adjust the range estimate and hires typically fall below the top range. Compensation decisions are tailored to individual circumstances. The current salary range for this role is $39,100.00 to $66,500.00.
This position is also incentive eligible.
Vizient has a comprehensive benefits plan! Please view our benefits here:
http://www.vizientinc.com/about-us/careers
Equal Opportunity Employer: Females/Minorities/Veterans/Individuals with Disabilities
The Company is committed to equal employment opportunity to all employees and applicants without regard to race, religion, color, gender identity, ethnicity, age, national origin, sexual orientation, disability status, veteran status or any other category protected by applicable law.</div></div></div></div></div>

Resolution Assurance Specialist

<div><div><div><div><div>When you&rsquo;re the best, we&rsquo;re the best. We instill an environment where employees feel engaged, satisfied and able to contribute their unique skills and talents while living and working as their authentic selves. We provide extensive opportunities for personal and professional development, building both employee competence and organizational capability to fuel exceptional performance through an inclusive environment both now and in the future.
Architect and lead the design of scalable microservices, event-driven architectures, and cloud-native solutions on Microsoft Azure. Own and enforce engineering best practices, including CI/CD pipelines (Azure DevOps, Octopus Deploy, GitHub Actions), automated testing (TDD, BDD), and infrastructure automation (Terraform, Pulumi, Kubernetes). Mentor and guide the development team, conducting technical reviews, architectural discussions, and knowledge-sharing sessions. Define API security standards (OAuth, OpenID Connect, JWT) and enforce robust authentication, authorization, and compliance measures. Collaborate with cross-functional teams&mdash;architects, product managers, and stakeholders&mdash;to align engineering decisions with business strategy. Develop and contribute to the codebase, implementing scalable microservices in C#, Python, and Java and high-performance frontends in React and Angular. Optimize application performance and security, leveraging caching (Redis, CDN), query tuning, database indexing, sharding, and security hardening (OWASP). Lead Kubernetes-based deployments, enabling container orchestration, horizontal scaling, and load balancing for high availability and fault tolerance. Leverage BI tools (Power BI, Tableau, MicroStrategy) for engineering analytics, operational intelligence, and business insights. Drive data-driven engineering strategies, integrating real-time analytics, data lakes, and ETL pipelines where applicable. Support team well-being and morale by ensuring balanced workloads, recognizing achievements, and fostering a healthy, productive work environment. Cultivate psychological safety, where team members feel comfortable sharing ideas, asking questions, and learning from mistakes without fear of blame. Provide consistent feedback through regular 1:1s and team discussions, promoting an open feedback culture that encourages growth and learning. Resolve interpersonal challenges proactively, using empathy and mediation skills to maintain team cohesion and alignment with shared goals. Instill accountability by ensuring team members take ownership of deliverables, meet expectations, and remain committed to project success. Facilitate regular retrospectives, continuously refining workflows, improving efficiency, and implementing actionable process enhancements. Partner with the Engineering Manager to support career development, offering guidance on technical skills, leadership growth, and long-term career planning. Drive continuous improvement by encouraging the team to challenge existing workflows, adopt better methodologies, and innovate within projects. Foster a culture of experimentation, empowering the team to explore new ideas, iterate quickly, and embrace a fail-fast, learn-fast approach. Advocate for engineering excellence, recommending initiatives that enhance both product delivery and the overall effectiveness of engineering teams. Mentor and guide engineers in core technical areas, including technical decision-making, code quality, debugging, architecture design, scalability, and emerging technologies. Provide hands-on problem-solving and learning opportunities to drive continuous technical excellence. Identify skill gaps and growth opportunities, collaborating with engineers to create targeted learning plans that enhance debugging skills, technical adaptability, and a balanced development of both technical and soft skills. Recognize and nurture individual strengths, aligning responsibilities with career aspirations, leadership potential, and technical interests. Provide coaching and leadership development to cultivate future engineering leaders. Foster a culture of innovation and continuous improvement, encouraging team members to experiment with new ideas, adopt emerging technologies, and proactively address technical debt, scalability, and maintainability challenges. Champion AI-driven tools and techniques to enhance productivity, streamline workflows, and foster data-driven decision-making within the engineering team. Identify and implement AI-powered automation opportunities, reducing manual effort, improving efficiency, and accelerating software development cycles. Lead AI integration into the development lifecycle, incorporating automation for test case generation, performance monitoring, anomaly detection, and predictive analytics in cloud environments. Leverage Azure Databricks for AI/ML, enabling scalable data processing, machine learning model training, and real-time analytics to drive intelligent automation and insights. Foster a culture of AI-driven innovation, encouraging team members to experiment with AI-based solutions and adopt emerging technologies to solve complex engineering challenges. Equip engineers with best practices for AI adoption, ensuring responsible and effective use of AI tools while maximizing their impact on software development. Collaborate with product owners to gather and refine requirements, ensuring alignment with business objectives and successful project delivery. Decompose complex features into manageable tasks, prioritizing efforts for timely completion, smooth execution, and effective resource allocation. Facilitate seamless collaboration between engineering and product teams, ensuring alignment on feature development, timelines, and deliverables. Proactively identify and assess risks related to technical decisions, projects, and dependencies, providing clear mitigation strategies and communicating them effectively. Partners with product owners and delivery leads to drive high-quality execution, ensuring projects are delivered on time without compromising quality. Lead post-mortems for major incidents and projects, capturing key lessons learned, fostering accountability, and implementing continuous improvements. Maintain transparency and alignment by effectively communicating project status, progress, and potential risks to Product Owners and Delivery Leads. Foster strong cross-functional relationships through regular touchpoints with Product Management, Architecture, and Delivery teams, ensuring cohesive project execution, shared goal alignment, and proactive resolution of technical challenges.
MINIMUM REQUIREMENTS:
This position requires a Bachelor&rsquo;s degree in Computer Science, Electronic Engineering, or a directly related field of study and 8 years of progressive, post-baccalaureate experience. Requires Microsoft Certified: Azure Solutions Architect Expert Certification. Requires: 1) 8 years of progressively related experience in software development with Object-Oriented Programming (OOP), Test-Driven Development (TDD), and the Software Development Life Cycle (SDLC), including the design and implementation of scalable and maintainable solutions using languages such as C#, VB.Net, and Python, with demonstrated application of SOLID principles, design patterns, and best practices to deliver high-quality, reusable code. 2) 8 years of experience in modernizing legacy systems, including migrating applications from ASP.NET MVC to ASP.NET Core and applying architectural patterns, including microservices, event-driven architectures, layered architectures, to design and develop scalable, robust, and maintainable systems, with demonstrated expertise in decomposing monolithic applications into microservices and implementing inter-service communication using REST APIs, gRPC, and message brokers such as Apache Kafka or Azure Service Bus; 3) 8 years of experience with ASP.NET Web Forms, MVC, WCF, SignalR, and REST Web APIs, including expertise in implementing authentication and authorization mechanisms such as OAuth, OpenID Connect, and JWT to secure APIs and applications, with demonstrated proficiency in designing and documenting APIs using Swagger to ensure clear and consistent communication of functionality and endpoints; 4) 8 years of experience in front-end development using HTML5, CSS3, JavaScript, and modern frameworks including Angular or React, with a strong focus on building dynamic, responsive, and user-friendly web applications, including expertise in creating reusable UI components, adhering to modular design principles, and optimizing front-end performance through techniques such as lazy loading, code splitting, and responsive design; 5) 7 years of experience in database design, modeling, and management, with demonstrated expertise in designing normalized and denormalized schemas for transactional and analytical systems, optimizing query execution times in both relational and NoSQL databases, creating and optimizing complex queries, stored procedures, and indexes for high-volume transactional databases, and implementing partitioning strategies and sharding techniques to ensure scalability and data integrity in distributed systems; 6) 7 years of experience using unit testing frameworks such as xUnit or NUnit to develop unit tests and mocking frameworks like NSubstitute or Moq to simulate dependencies for accurate testing, with demonstrated implementation of Test-Driven Development (TDD) practices to improve code maintainability and reduce defects by integrating SonarQube for continuous code quality analysis, addressing identified code smells, vulnerabilities, and technical debt across multiple codebases to ensure clean and efficient software delivery; 7) 7 years of experience in setting up and managing CI/CD pipelines using tools such as Octopus Deploy, SVN, TFS, and Azure DevOps, including the successful automation of build, test, and deployment processes to reduce deployment time, with demonstrated expertise in configuring pipelines for both monolithic and microservices-based architectures across development, staging, and production environments; 8) 6 years of experience designing, deploying, and managing cloud-native solutions using Azure services such as App Services, Azure Functions, Service Bus, EventHubs, SQL Managed Instance, Cosmos DB, Container Apps, SQL Managed Instances and Azure Container Registry, with demonstrated success in building applications that scale to handle at least large transactions, maintain 99.9% availability, and implement security best practices; 9) 5 years of experience securing applications by implementing Microsoft Entra for identity management in enterprise environments, managing secrets and certificates using Azure Key Vault, and configuring Azure Storage Accounts to securely handle large data, with proficiency in using Azure Monitor and Log Analytics to optimize performance and ensure compliance with industry standards, including resolving identified issues within SLA timelines; 10) 5 years of experience collaborating with product owners, stakeholders, and DevOps team to refine technical requirements, resolve complex issues within defined SLAs, and deliver high-quality software solutions, with demonstrated ability to align technical implementations with business goals resulting in delivery timelines and ensuring seamless integration across development, deployment, and operational workflows in meeting project objectives; 11) 4 years of experience with Apache Kafka, including setting up and managing Kafka clusters to process real-time data streams with high throughput, configuring topics with appropriate partitions for scalability, and optimizing replication and retention strategies to achieve system uptime of 99.9% or higher in event-driven architectures, while ensuring low-latency pipelines with end-to-end processing times; 12) 4 years of experience in mentoring and coaching engineers, focusing on both technical and professional development; 13) 3 years of experience designing, deploying, and managing secure and scalable Azure networking solutions, including Virtual Networks (VNet), Application Gateway, Load Balancers, and Network Security Groups (NSG), with demonstrated expertise in implementing fault-tolerant connectivity and hybrid network architectures using VPN Gateway and ExpressRoute to integrate and support enterprise-grade workloads handling traffic while maintaining performance, reliability, and compliance with security standards; 14) 3 years of experience in containerizing applications using Docker or Kubernetes, including deploying and managing containerized applications in production environments, with demonstrated ability to create and optimize Dockerfiles to build container images and orchestrate multi-container deployments using Docker Compose for production-grade projects; 15) 3 years of experience designing and implementing pipelines using Azure Data Factory, Azure Databricks, and SQL Server Integration Services (SSIS), with demonstrated expertise in transforming, loading, and optimizing data across both cloud and on-premises environments, including the successful extraction of data applying advanced mapping and cleansing techniques, and efficiently loading large datasets into target systems; 16) 3 years of experience using BDD frameworks, including writing clear and concise Gherkin scenarios to define acceptance criteria aligned with business requirements, and developing and maintaining Selenium-based automated test suites covering functional and regression test cases for web applications, ensuring comprehensive test coverage and reducing manual testing effort; 17) 2 years of hands-on experience in graph database modeling and development using Neo4j, with demonstrated expertise in designing and implementing graph schemas optimized for complex relationships and hierarchical data structures, writing and optimizing Cypher queries to maintain query execution times for datasets exceeding million nodes and relationships, and integrating Neo4j using GraphQL APIs to enable efficient querying for modern front-end frameworks; and 18) 1 year of experience working with AI/ML tools and frameworks such as TensorFlow, PyTorch, or Azure Machine Learning for predictive analytics, natural language processing, or automation use cases, with demonstrated ability to integrate AI-powered features into enterprise applications to enhance decision-making, operational efficiency, and end-user experience.
Experience may be gained concurrently. Hybrid position. Must reside within commuting distance from Irving, TX office. Various unanticipated locations throughout the U.S. Salary: $156,998 to $206,000/year. Visa sponsorship not available for this position. Please apply online at https://careers.vizientinc.com/careers.
This position is also incentive eligible.
Vizient has a comprehensive benefits plan! Please view our benefits here:
http://www.vizientinc.com/about-us/careers
Equal Opportunity Employer: Females/Minorities/Veterans/Individuals with Disabilities
The Company is committed to equal employment opportunity to all employees and applicants without regard to race, religion, color, gender identity, ethnicity, age, national origin, sexual orientation, disability status, veteran status or any other category protected by applicable law.</div></div></div></div></div>

Engineering Team Lead

<div><div><div><div><div>When you&rsquo;re the best, we&rsquo;re the best. We instill an environment where employees feel engaged, satisfied and able to contribute their unique skills and talents while living and working as their authentic selves. We provide extensive opportunities for personal and professional development, building both employee competence and organizational capability to fuel exceptional performance through an inclusive environment both now and in the future.
Summary: 
In this role, you will lead complex data and financial analytics initiatives that drive strategic decision-making and measurable business outcomes. You will manage high-impact projects, apply advanced modeling techniques to large and diverse datasets, and partner with senior leadership to evaluate and improve business processes. You will deliver customized insights, influence executive decisions, and guide team members in applying best practices to support organizational priorities and client needs.
Responsibilities:<ul><li>
Lead complex data and financial analytics projects with moderate risk and resource requirements.</li><li>
Deliver customized analyses using internal and external structured and unstructured datasets.</li><li>
Apply advanced statistical and financial modeling techniques to large data sets.</li><li>
Identify gaps in reporting and analytical processes and implement improvements.</li><li>
Evaluate business processes and recommend strategic enhancements in partnership with senior leadership.</li><li>
Influence executive decision-making through clear presentation of data-driven insights.</li><li>
Facilitate stakeholder meetings to gather requirements and assess current business processes.</li><li>
Develop professional recommendations and present preferred courses of action to leadership and clients.</li><li>
Guide and mentor team members on analytical methodologies and best practices.</li><li>
Build and maintain strong relationships with internal leaders and clients to align on desired outcomes.</li></ul>
Qualifications:<ul><li>
Relevant degree (e.g., Data Analytics, Finance, Supply Chain, Business, or related discipline) preferred. Advanced degree desired.</li><li>
7 or more years of relevant experience required.</li><li>
Advanced proficiency in data analytics, financial modeling, and statistical analysis techniques required.</li><li>
Experience with healthcare supply chain analytics, including knowledge of key supply chain metrics (e.g., cost savings, utilization, contract compliance, and performance benchmarking), required.</li><li>
Experience leading cross-functional analytics initiatives and working with large, complex datasets from multiple sources required.</li><li>
Strong technical proficiency in analytics, visualization, and AI-enabled tools such as SQL, Python, R, Power BI, Tableau, machine learning frameworks, and generative AI platforms.</li><li>
Demonstrated ability to present complex analytical insights to C-suite and executive leadership and influence strategic decision-making.</li><li>
Excellent written and verbal communication skills.</li><li>
Strong project management and organizational skills.</li><li>
Willingness to travel.
</li></ul>Estimated Hiring Range:
At Vizient, we consider skills, experience, and organizational needs in our compensation approach. Geographic factors may adjust the range estimate and hires typically fall below the top range. Compensation decisions are tailored to individual circumstances. The current salary range for this role is $77,400.00 to $135,400.00.
This position is also incentive eligible.
Vizient has a comprehensive benefits plan! Please view our benefits here:
http://www.vizientinc.com/about-us/careers
Equal Opportunity Employer: Females/Minorities/Veterans/Individuals with Disabilities
The Company is committed to equal employment opportunity to all employees and applicants without regard to race, religion, color, gender identity, ethnicity, age, national origin, sexual orientation, disability status, veteran status or any other category protected by applicable law.</div></div></div></div></div>

Data & Financial Analytics Lead

<div><div><div><div><div>When you&rsquo;re the best, we&rsquo;re the best. We instill an environment where employees feel engaged, satisfied and able to contribute their unique skills and talents while living and working as their authentic selves. We provide extensive opportunities for personal and professional development, building both employee competence and organizational capability to fuel exceptional performance through an inclusive environment both now and in the future.
Summary: 
In this role, you will advance Vizient&rsquo;s brand, reputation, and thought leadership through proactive media engagement, digital newsroom management, and strategic content oversight. You will support enterprise public relations strategy by managing media relations activities, identifying newsworthy opportunities, and developing compelling media materials that highlight Vizient&rsquo;s expertise and insights. You will collaborate with internal stakeholders to promote consistent messaging, monitor media performance, and strengthen Vizient&rsquo;s presence across healthcare industry media.
Responsibilities:<ul><li>
Lead proactive and reactive media relations efforts, including managing media inquiries, coordinating interviews, conducting reporter outreach, and developing press materials.</li><li>
Develop press releases, media statements, and briefing materials that support Vizient&rsquo;s brand and thought leadership strategy.</li><li>
Partner with internal stakeholders to identify newsworthy initiatives, data insights, and subject-matter experts for earned media opportunities.</li><li>
Provide communications support for enterprise initiatives and strategic projects that require media engagement.</li><li>
Support issues management and crisis communications through message development, monitoring emerging risks, and preparing holding statements.</li><li>
Manage Vizient&rsquo;s digital newsroom to ensure timely, accurate, and compelling publication of company news and leadership perspectives.</li><li>
Leverage media distribution platforms to expand reach and optimize placement of press releases and announcements.</li><li>
Monitor and analyze media and newsroom performance metrics to inform strategy and improve visibility and credibility.</li><li>
Review and coordinate approval of third-party press releases referencing Vizient partnerships or agreements to ensure accuracy and alignment with company standards.</li><li>
Coordinate internal distribution of curated media coverage related to Vizient, its clients, competitors, and healthcare industry developments.</li></ul>
Qualifications:<ul><li>
Relevant degree preferred in Journalism, Communication or English.</li><li>
5 or more years of relevant experience required.</li><li>
Experience in healthcare communications or healthcare industry media preferred.</li><li>
Experience working in corporate communications, media relations, or public relations environments.</li><li>
Strong writing and editing skills with the ability to craft clear and compelling messages and exercise sound editorial judgment in developing and reviewing content.</li><li>
Demonstrated ability to manage media inquiries and build relationships with journalists and media outlets.</li><li>
Strong organizational and project management skills with attention to detail.</li><li>
Ability to collaborate effectively in a matrixed environment across multiple teams and stakeholders.</li><li>
Strategic thinking skills with the ability to translate communications goals into actionable media strategies.</li></ul>
This is an office-based role with an expectation of three days per week on-site in Irving, TX or Chicago, IL.
#Li-JS1
Estimated Hiring Range:
At Vizient, we consider skills, experience, and organizational needs in our compensation approach. Geographic factors may adjust the range estimate and hires typically fall below the top range. Compensation decisions are tailored to individual circumstances. The current salary range for this role is $68,500.00 to $116,300.00.
This position is also incentive eligible.
Vizient has a comprehensive benefits plan! Please view our benefits here:
http://www.vizientinc.com/about-us/careers
Equal Opportunity Employer: Females/Minorities/Veterans/Individuals with Disabilities
The Company is committed to equal employment opportunity to all employees and applicants without regard to race, religion, color, gender identity, ethnicity, age, national origin, sexual orientation, disability status, veteran status or any other category protected by applicable law.</div></div></div></div></div>

Senior Media Relations Manager