project manager

product manager

construction manager

project director

contracts manager

technical project manager

Mobileum

<div>
 <p>
  <strong>
   Position summary:
  </strong>
 </p>
 <p>
  We are looking for a Technical Delivery Manager (TDM) with extensive experience in designing and implementing Roaming &amp; Network security solutions. The TDM will be responsible for leading the technical delivery of large, strategic, and complex data integration projects on behalf of our customers. They will work closely with the project manager, the implementation engineers and the development engineers to ensure a successful project delivery. The TDM is ultimately responsible for the Technical leadership, quality, and timely delivery of the project for our customers.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Roles &amp; Responsibilities, but not limited to:
  </strong>
 </p>
 <ul>
  <li>
   Build Mobileum product expertise that allows for optimum deployments.
  </li>
  <li>
   Build and Review the Solution Design (HLD/LLD/implementation guides)
  </li>
  <li>
   Perform deployments as per the internally published methodologies within Mobileum.
  </li>
  <li>
   Identify potential risks and develop strategies to mitigate or address them. This involves conducting risk assessments, analyzing their potential impact on project objectives, and proactively implementing risk mitigation plans
  </li>
  <li>
   Report all issues to QE/Product team.
  </li>
  <li>
   Communicate statuses to the Project Manager and Mobileum management stakeholders.
  </li>
  <li>
   Escalate issues that have an impact to the Project Manager or Delivery Head.
  </li>
  <li>
   Adherence to the planned activities and delivering the project with Quality as per the agreed timelines.
  </li>
  <li>
   Guide the deployment engineers on product implementation, analyze and help fix issues.
  </li>
  <li>
   Participate in the system audit, UAT, Launch readiness
  </li>
  <li>
   Post Product launch - KPI Reviews &amp; monitoring and apply any corrections.
  </li>
  <li>
   Work with team for transition of the completed projects to the Operations team.
  </li>
  <li>
   Readiness to travel. Travelling time as per the needs of the project.
  </li>
  <li>
   Provide product and other technical feedback to the Product team for Enhancements.
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Skill Sets:
  </strong>
 </p>
 <ul>
  <li>
   Expertise with Baremetal Servers, Virtual or Kubernetes-based deployments.
  </li>
  <li>
   Linux/Shell scripting &ndash; Basic knowledge of Linux and shell scripting. Perl/Python scripting knowledge preferred.
  </li>
  <li>
   Database - Oracle/In Memory databases like Couchbase &ndash; Basic understanding of database is a must. Good knowledge on SQL. PL/SQL knowledge preferred.
  </li>
  <li>
   Domain Knowledge &ndash; GSM/CAMEL/ Diameter/4G/5G Protocol level knowledge required.
  </li>
  <li>
   Communication skills &ndash; Candidate should have fluent verbal and written English and Arabic skills.
  </li>
  <li>
   Tools &ndash; JIRA, MS Office
  </li>
 </ul>
 <li>
 </li>
 <p>
  <strong>
   Work Experience:
  </strong>
  15+ Years
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Educational Qualification:
  </strong>
 </p>
 <p>
  B.Sc or M. Sc. in Computer Science / Computer Engineering / Telecommunications Engineering
 </p>
 <p>
 </p>
</div>


Technical Delivery Manager

700apps

<div>
 700Apps is seeking a highly skilled Senior Software Project Manager to lead our development projects and ensure their successful delivery. In this role, you will oversee project planning, execution, and resource management while maintaining alignment with our strategic goals and client expectations.
 <br/>
 <br/>
 <strong>
  Key Responsibilities:
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Lead the project management process for software development initiatives, including initiation, planning, execution, monitoring, and closure
  </li>
  <li>
   Collaborate with cross-functional teams and stakeholders to define project scope, goals, and deliverables
  </li>
  <li>
   Develop and manage detailed project plans, ensuring timely execution of tasks and milestones
  </li>
  <li>
   Identify project risks and formulate mitigation strategies to address potential issues proactively
  </li>
  <li>
   Monitor project progress and performance, providing regular status updates to stakeholders
  </li>
  <li>
   Facilitate communication and collaboration among team members, ensuring a productive working environment
  </li>
  <li>
   Oversee budget management, ensuring projects are delivered within financial constraints
  </li>
  <li>
   Conduct project retrospectives and integrate lessons learned into future projects for continuous improvement
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Requirements
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Bachelor's or Master's degree in Computer Science, Engineering, or related field
  </li>
  <li>
   Minimum of 10 years of experience in software project management
  </li>
  <li>
   Strong experience with Agile and Waterfall project management methodologies
  </li>
  <li>
   Proficient in project management software (e.g., JIRA, Asana, Microsoft Project)
  </li>
  <li>
   Excellent leadership, organizational, and multitasking skills
  </li>
  <li>
   Exceptional communication and interpersonal skills, with the ability to collaborate effectively with diverse teams
  </li>
  <li>
   Strong analytical and strategic thinking abilities
  </li>
  <li>
   Relevant certifications such as PMP, Scrum Master, or equivalent are a plus
   <br/>
   <br/>
  </li>
 </ul>
 <strong>
  Benefits
  <br/>
  <br/>
 </strong>
 <ul>
  <li>
   Private Health Insurance
  </li>
  <li>
   Training &amp; Development
  </li>
  <li>
   Attractive Salary
  </li>
  <li>
   Social Insurance
  </li>
  <li>
   Family Package
  </li>
 </ul>
</div>


Senior Software Project Manager

<div><p>700Apps is seeking a highly skilled Senior Software Project Manager to lead our development projects and ensure their successful delivery. In this role, you will oversee project planning, execution, and resource management while maintaining alignment with our strategic goals and client expectations.</p><p><b>
Key Responsibilities:</b></p><ul>
<li>Lead the project management process for software development initiatives, including initiation, planning, execution, monitoring, and closure.</li>
<li>Collaborate with cross-functional teams and stakeholders to define project scope, goals, and deliverables.</li>
<li>Develop and manage detailed project plans, ensuring timely execution of tasks and milestones.</li>
<li>Identify project risks and formulate mitigation strategies to address potential issues proactively.</li>
<li>Monitor project progress and performance, providing regular status updates to stakeholders.</li>
<li>Facilitate communication and collaboration among team members, ensuring a productive working environment.</li>
<li>Oversee budget management, ensuring projects are delivered within financial constraints.</li>
<li>Conduct project retrospectives and integrate lessons learned into future projects for continuous improvement.</li>
</ul><p><b>Requirements</b></p><ul>
<li>Bachelor's or Master's degree in Computer Science, Engineering, or related field.</li>
<li>Minimum of 10 years of experience in software project management.</li>
<li>Strong experience with Agile and Waterfall project management methodologies.</li>
<li>Proficient in project management software (e.g., JIRA, Asana, Microsoft Project).</li>
<li>Excellent leadership, organizational, and multitasking skills.</li>
<li>Exceptional communication and interpersonal skills, with the ability to collaborate effectively with diverse teams.</li>
<li>Strong analytical and strategic thinking abilities.</li>
<li>Relevant certifications such as PMP, Scrum Master, or equivalent are a plus.</li>
</ul><p><b>Benefits</b></p><p></p><ul>
<li>Private Health Insurance</li>
<li>Training &amp; Development</li>
<li>Attractive Salary
</li><li>Social Insurance</li>
<li>Family Package</li></ul></div>

UCC Holding

<div>
 <p>
  The Senior Technical and Engineering Manager is responsible for all designing/technical aspects of the Companys operations, inclusive of value engineering opportunities, construction and overall methodology, method statements, engineering design drawings, shop drawings and material submittals and follow up approval. This position also manages the preparation/verification of detailed constructional drawings, negotiation and securing of technical and statutory approvals to achieve and monitor the optimum effectiveness.
 </p>
 <p>
  <br/>
 </p>
 <ul>
  <li>
   Lead and manage interdisciplinary teams of designers, engineers, and technical experts to ensure seamless integration of design and technical aspects in projects.
  </li>
  <li>
   Develop and implement design strategies and technical solutions that align with project goals, client requirements, and industry standards.
  </li>
  <li>
   Oversee the entire project lifecycle, from conceptualization to completion, ensuring adherence to schedules, budgets, and quality standards.
  </li>
  <li>
   Provide technical expertise and guidance to resolve complex design and technical challenges, fostering innovation and problem-solving.
  </li>
  <li>
   Collaborate with clients, architects, contractors, and other stakeholders to establish project objectives, expectations, and deliverables.
  </li>
  <li>
   Review and approve design concepts, technical drawings, specifications, and documentation to ensure accuracy, compliance, and completeness.
  </li>
  <li>
   Monitor project progress, identify potential risks, and implement mitigation strategies to ensure successful project outcomes.
  </li>
  <li>
   Foster a culture of continuous improvement within the team, promoting learning, innovation, and professional development.
  </li>
  <li>
   Act as a primary point of contact for technical inquiries, design-related issues, and stakeholder communications, ensuring effective and timely resolution.
  </li>
  <li>
   Stay abreast of industry trends, emerging technologies, and best practices in design and technical fields, integrating new knowledge and methodologies into project workflows.
  </li>
  <li>
   Support the implementation of HSE initiatives, participate in safety awareness activities, and contribute to incident reporting and resolution in alignment with company and IMS policies
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   <u>
    Job Experience
   </u>
  </strong>
 </p>
 <p>
  Minimum 10-15 years working experience, 5 years in a relevant supervisory position, 5 years GCC experience is a plus
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   <u>
    Education
   </u>
  </strong>
 </p>
 <p>
  Bachelor's Degree in Civil / Architect Engineering or Engineering
 </p>
</div>


Senior Technical and Engineering Manager

Giza Systems EG

<div><h4 class="jobSectionHeader"><b>Job Description</b></h4>
<p></p><div><p>The Project Manager manages key clients&rsquo; projects. The role of the project manager is key to the success of the project. Project management responsibilities include the coordination and completion of projects on time within budget and within scope. Set deadlines, assign responsibilities and monitor and summarize progress of project. Prepare reports for upper management regarding status of project.</p>
<ul>
<li>Communicate with Head of PM and presales team to understand the project being evaluated to ensure that the successful bid will be managed successfully.</li>
<li>Work with the contracts team to review the client contract before signing in order to ensure implementation risks are mitigated.</li>
<li>Work with technical managers to ensure that the proper skills are available and ready for mobility before project kick-off.</li>
<li>Manage the handover process from the bidding team to the operations team to ensure the proper kick-off of the project.</li>
<li>Assist in the definition of project scope and objectives, involving all relevant stakeholders and ensuring technical feasibility.</li>
<li>Prepare the detailed project time plan with detailed time schedule in coordination with all stakeholders including the PM of the client.</li>
<li>Ensure that all risks are identified, and applicable action plan(s) is acknowledged by all and ready if applicable.</li>
<li>Ensure that the project&rsquo;s overall objectives, targets at various key stages, and individuals&rsquo; responsibilities are clearly communicated and understood by all concerned parties.</li>
<li>Monitor the progress of the project and manage the day-to-day activities within the project to ensure successful delivery.</li>
<li>Represent Giza Systems in all meetings and communications with client representatives.</li>
<li>Ensure continuous and periodical communication between all stakeholders of the project to ensure that the delivery is on-time, within scope and within budget.</li>
<li>Manage proactively all challenges and issues that might be raised in the middle of the project to ensure the satisfaction of the client.</li>
<li>Coordinate with procurement, purchasing and logistics all material ordering and delivery considering all logistics aspects mentioned in the contract.</li>
<li>Review and undertake quality assurance on all client deliverables prepared by the team before they are sent to the client, ensuring that they meet the required standards and specifications.</li>
<li>Follow-up on stage approvals with the client and compile acceptance sheets for each module, as well as final acceptance sheets for the whole project.</li>
<li>Measure project performance using appropriate tools and techniques</li>
<li>Monitor the invoicing on a project and notify the Finance of all the necessary interim invoices to be issued to the client.</li>
<li>Support and ensure the collection of revenue with client.</li>
<li>Follow and ensure adherence of internal policies, procedures &amp; financial systems.</li>
<li>Highlight areas of slippage and identify/initiate corrective action.</li>
<li>Manage changes to the project scope, project schedule and project costs using appropriate verification techniques.</li>
<li>Report and escalate to management as needed.</li>
<li>Track project performance to analyse the successful completion of short and long-term goals.</li>
<li>Ensure project revenue/cash status are matching planned for both In/Out.</li></ul></div><br>
<p></p>
<h4 class="jobSectionHeader"><b>Personal Skills</b></h4>
<p></p><div><ul><li>Excellent communication, interpersonal, and negotiation skills.</li>
<li>Excellent problem-solving skills.</li>
<li>Excellent command of English.</li>
<li>Excellent team leadership.</li>
<li>Excellent communication and negotiation skills.</li>
<li>Excellent technical report writing skills.</li>
</ul></div><p></p>
<h4 class="jobSectionHeader"><b>Technical Skills</b></h4>
<p></p><div><p>&amp;bull;Project Management Professional (PMP) or another PM certification is a must.
<br>
&amp;bull;Strong knowledge of Oracle project management methodologies (e.g., OUM, AIM)<br>
<br>
&amp;bull;Familiarity with Oracle Cloud Applications (ERP, HCM, SCM) or Oracle E-Business Suite R12
<br>
&amp;bull;Hands-on experience managing full-cycle Oracle implementations
<br>
&amp;bull;Oracle Cloud Project Management Certification
<br>
&amp;bull;Agile/Scrum Certification (optional)&amp;bull;Strong knowledge of Oracle project management methodologies (e.g., OUM, AIM)
<br>
&amp;bull;Familiarity with Oracle Cloud Applications (ERP, HCM, SCM) or Oracle E-Business Suite R12
<br>
&amp;bull;Proven experience delivering Oracle Cloud ERP projects for government clients in KSA, with strong familiarity with local business culture and public sector operations
<br>
&amp;bull;Strong working knowledge of Microsoft Office &amp;amp; MS Project.</p></div><p></p>
<h4 class="jobSectionHeader"><b>Education</b></h4>
<div><p>Bachelor's degree in Computer Science, Software Engineering, or a related field.</p></div></div><p></p>
<br><div><h4 class="jobSectionHeader"><b>Job Details</b></h4>
<div><div>Job Location</div>
<div>Riyadh, Saudi Arabia</div>
</div><div><div>Company Industry</div>
<div>IT Services</div>
</div><div><div>Company Type</div>
<div>Employer (Private Sector)</div>
</div><div><div>Job Role</div>
<div>Information Technology</div>
</div><div><div>Employment Status</div>
<div>Full time</div>
</div><div><div>Employment Type</div>
<div>Employee</div>
</div><div><div>Job Division</div>
<div>GDC</div></div></div>
<br><div><h4 class="jobSectionHeader"><b>Preferred Candidate</b></h4>
<div><div>Career Level</div>
<div>Management</div>
</div><div><div>Years of Experience</div>
<div>Min: 12 Max: 20</div>
</div><div><div>Residence Location</div>
<div>Saudi Arabia</div>
</div><div><div>Degree</div>
<div>Bachelor's degree</div></div></div>

Senior Project Manager

BeWunder

<div><h4 class="jobSectionHeader"><b>Your mission</b></h4><p>
Our friendly and energetic Event Production team in KSA is growing and we are seeking a Project Manager to complement the team and contribute to our delivery of the most innovative and exciting projects worldwide. If you&rsquo;re ready for a challenge and the opportunity to demonstrate your strong ability to coordinate and manage all aspects of a project in a fast-paced environment, then we want to hear from you!</p><br>
<ul><li>
Lead turnkey and AVL event production projects, managing the entire lifecycle from initial planning and design through procurement, build, execution, and final handover. Turnkey in this context means providing a fully integrated solution, covering all technical disciplines, scenic and fit-out works, structural elements, creative direction, logistics, operations, and client management, with dedicated support units (e.g. logistics, QHSE, procurement) providing specialist delivery. You ensure all support units are aligned, coordinated, and performing to the plan.</li><li>
You will be the main point of contact for our clients from concept design phase through to implementation on site.</li><li>
Oversee the development of the master project schedule and manage its implementation.</li><li>
Observe projects quality, deadlines and cost control.</li><li>
Conduct project reviews and create detailed reports for key stakeholders.</li><li>
Manage and lead multiple projects simultaneously from pre-construction to closeout.</li><li>
Ensure strict adherence to ethics and compliance requirements at all times.</li><li>
Participate in tender process, i.e. design, submission and review.</li><li>
Provide leadership in risk evaluation, contract negotiations, fee and pricing decisions.</li><li>
Tender, negotiate and award supplier contracts for subcontracting services.</li><li>
Coordinate a project team of specialist technical planners, estimators, coordinators, site managers and other team members. You will create the necessary project structures, provide guidance for the team members, ensure communication flows freely at all stages and create alignment amongst the team.</li><li>
Collaborate with Crew Management on resource planning of assigned projects using EasyJob software.</li><li>
Collaborate with QHSE on projects on-site, ensuring deliveries in line with HSE / QAQC requirements and compliances.</li><li>
Continuously build and maintain a strong network of clients.</li><li>
Secure growth opportunities and initiate new projects.</li></ul><p></p><h4 class="jobSectionHeader"><b>
Your profile</b></h4><p>
The right candidate will have:</p><ul><li>
Extensive <b>project/ technical management experience within AVL, fit-out and/ or scenic</b> in the field of events.</li><li>
Technical knowledge of Audio, Video and Lighting systems and control.</li><li>
Knowledge and experience with current entertainment technologies required for large scale installations.</li><li>
Proven ability to <b>create and manage large budgets.</b></li><li>
Proven ability to open new client opportunities and expand existing relationships, contributing to the organization&rsquo;s growth and long-term business development.</li><li>
Excellent communication and interpersonal skills.</li><li>
English language proficiency is a must (Arabic is a plus).</li><li>
Flexible to work based on the requirements of the live event industry.</li><li>
Good<b> understanding of technical, business &amp; contractual correlations in all complexity.</b></li><li>
Commercially minded, with ability to balance technical, business, and contractual requirements.</li></ul><p></p><h4 class="jobSectionHeader"><b>
Why us?</b></h4><p></p><ul><li>
Unified Premium Medical Insurance provided as standard to all team members &ndash; yes, you read that correctly, we all enjoy the same insurance category benefits!</li><li>
Worker&rsquo;s Compensation and Accident Insurance.</li><li>
Annual Flight Allowance.</li><li>
Recruitment Referral Bonus Scheme for team members who refer successful applicants for our open positions.</li><li>
Project Referral Bonus Scheme for team members who refer successful project leads.</li><li>
Community &amp; Diversity Programme, including an annual BeWunder Culture Day celebrating our international and multicultural team.</li><li>
The opportunity to work in an international and multi-cultural team with collaboration across our offices in the Middle East and Europe.</li><li>
Collaborative and motivated working environment.</li><li>
Trusting and partnership-based cooperation across all units.</li><li>
An innovative and growth-oriented company with a matrix organizational structure and an open corporate culture.</li><li>
Further training opportunities and support in acquiring further qualifications as well as opportunities for further development in new technologies.</li></ul><p></p><h4 class="jobSectionHeader"><b>
About us</b></h4><p></p><p><b>
BeWunder</b> is your turnkey partner specializing in <b>Event Production</b> and <b>Spatial Experiences</b>.</p><br>
We create inspiring and unforgettable experiences for our clients and their guests. Our renowned and highly-skilled team of industry experts in both live events and permanent construction is well-versed in bridging the gap between vision and reality. We design, deliver and service complex, challenging, and large-scale projects in the field of museums and exhibitions, EXPO and brand pavilions, visitor and experience centers, digital art spaces, live events - both corporate and sporting, as well as conferences and multimedia shows.<p></p><p><br>
Our passion lies in producing multisensory and immersive experiences, a perfect blend of new technologies and content, staged lighting and interactive elements.</p><p></p><p><br>
With our international track record in Europe, the Middle East and Asia, we are perfectly positioned to realize exceptional projects for our clients around the globe, from initial concept design through to final installation and beyond!</p></div><p></p>

Project Manager Event Production (m/f/d)

Google

<div>Please note: Applicants to this role must have work authorization in Saudi Arabia as this role is not eligible for work visa sponsorship<h3 class="jobSectionHeader"><b>
Minimum qualifications:</b></h3><ul>
<li>Bachelor's degree in Computer Science or equivalent practical experience.<br>
</li>
<li>5 years of experience in project management and technical solution delivery.<br>
</li>
<li>Experience with architecture, developing, and maintaining technical solutions in virtualization or cloud environments.</li>
<li>Experience in networking, compute infrastructure (e.g., servers, databases, firewalls, load balancers) and architecting, developing, or maintaining cloud solutions in virtualized environments (Networking, DevOps/SRE, Security, Compute, Storage, Kubernetes).</li></ul><br>
<h3 class="jobSectionHeader"><b>
Preferred qualifications:</b></h3><ul>
<li>Experience working with channel partners, systems integrator, and third-party developers to deliver successful solutions.</li>
<li>Experience with deployment and orchestration technologies (Docker, Kubernetes, Ansible, etc).</li>
<li>Experience in deploying distributed data processing systems in one or more of the following: Oracle, SQL Server, MySQL, PostgreSQL, MongoDB, etc.</li>
<li>Experience in systems design with an ability to architect or explain complex systems interactions including data flows, common interfaces, APIs etc.</li>
<li><div><div>Experience with reading software code in one or more languages (e.g., Java, Javascript, or Python).</div></div></li>
<li>Ability to communicate in English and Arabic fluently to support client relationship management in this region</li>
</ul><div><h2 class="jobSectionHeader"><b>About the job</b></h2><p>
The Google Cloud Consulting Professional Services team guides customers through the moments that matter most in their cloud journey to help businesses thrive. We help customers transform and evolve their business through the use of Google&rsquo;s global network, web-scale data centers, and software infrastructure. As part of an innovative team in this rapidly growing business, you will help shape the future of businesses of all sizes and use technology to connect with customers, employees, and partners.</p><br>
<p>
As a Platforms and Infrastructure Cloud Consultant, you will work directly with Google&rsquo;s customers on critical projects to help them transform their businesses. You will provide management, consulting and technical aptitude to customer engagements while working with client executives and key technical leaders to deploy solutions via Google&rsquo;s Cloud Platform. You will also work closely with key Google partners, servicing top accounts to manage programs, deliver consulting services, and provide technical guidance and best practice expertise.</p><p><br>
Google Cloud accelerates every organization&rsquo;s ability to digitally transform its business and industry. We deliver enterprise-grade solutions that leverage Google&rsquo;s cutting-edge technology, and tools that help developers build more sustainably. Customers in more than 200 countries and territories turn to Google Cloud as their trusted partner to enable growth and solve their most critical business problems.</p></div><div><h2 class="jobSectionHeader"><b>
Responsibilities</b></h2><ul>
<li>Work with customer technical leads, client executives, and partners to manage and deliver successful implementations of cloud solutions becoming a trusted advisor to decision makers throughout the engagement.<br>
</li>
<li>Propose solution architectures and manage the deployment of cloud based distributed virtualized infrastructure solutions according to complex customer requirements and implementation best practices.</li>
<li>Work with internal specialists, Product, and Engineering teams to package approaches, best practices, and lessons learned into thought leadership, methodologies, and published assets.<br>
</li>
<li>Interact with Sales, Partners, and customer technical stakeholders to manage project scope, priorities, deliverables, risks and issues, and timelines for successful client outcomes.<br>
</li>
</ul></div>Google is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. See also Google's EEO Policy and EEO is the Law. If you have a disability or special need that requires accommodation, please let us know by completing our Accommodations for Applicants form.</div>

Cloud Platforms and Infrastructure Consultant

Explore 1736+ Technical project manager in Riyadh this October. Find roles across top companies and apply now to boost your career.

1736 technical project manager jobs IN Riyadh

Technical Delivery Manager

Senior Software Project Manager

Senior Software Project Manager

Senior Technical and Engineering Manager

Senior Project Manager

Project Manager Event Production (m/f/d)

Cloud Platforms and Infrastructure Consultant