Sr Engineer, Systems Design (Infrastructure Services--UNIX Operations)

Job Description:

Sr Engineer, Systems Design (Infrastructure Services--UNIX Operations)


The System Design Engineer's role is to design, validate and deploy technical solutions to maintain, enhance, and evolve the T-Mobile Network and Systems. As a Systems Design Engineer, you will provide day to day management and administration of Linux and IBM AIX systems running within T-Mobile's Data Centers.

Specific tasks may include the development and maintenance of designs for the network, applications, data centers, connectivity, validation plans, monitoring systems, reporting systems and engineering tools. The priority of these designs is to maximize reliability, performance, and efficiency while limiting costs and time to market.

Responsibilities may include the evaluation and translation of requirements into design, evaluate design benefits and tradeoffs, validate design compliance and support deployment of the design to ensure the requirements were met. Development of tools may be required in order to most efficiently solve technical or business challenges including technology evolution, capacity management, and performance optimization. Use of existing automation tools may be required to solve problems at scale. Technical documentation and presentation skills are required in order to convey design benefits to a wide range of audiences. Works on technical assignments that are moderately difficult, requiring judgment in resolving issues or in making recommendations. Works on assignments requiring considerable judgment and initiative. Understands implications of work and makes recommendations for solutions.

Normally receives little instruction on daily work, general instructions on newly introduced assignments. This position is responsible for designing, administering and maintaining hardware and UNIX OS software running applications which are critical to T-Mobile's day to day operations. Core technologies are comprised of enterprise class IBM, HP, Dell, AIX, Linux hardware and software installations.

Enterprise Core Competencies

Requires competency in customer focus, change & innovation, strategic thinking, relationship building & influencing, talent management, results focus and inspirational leadership.


Essential Functions

Technical System Expertise: Understands system protocols, how systems operate and data flows. Aware of current technology benefits. Expected to lead and deliver complex network designs. Deep understanding of the building blocks, interactions, dependencies, and tools required to complete design work. Independent study of current technology is expected.

Technical Engineering Services: Drives engineering projects by active contribution to the application of engineering techniques; conducting tests and inspections; preparing reports and calculations. Expected to supervise associate and base level engineers as needed. Develops procedures and processes to validate and enhance and optimize network. Creates appropriate validation tests and inspection techniques and effectively documents results. Able to prepare executive summaries of activities and clearly communicate areas of opportunity.

Innovation: Contributes to designs to implement new ideas which improve an existing and new system/process/service. Understands and can apply new industry perspectives to our existing business model. Review existing designs and processes to highlight more efficient ways to complete existing workload more effectively through industry perspectives. Seeks opportunities to improve designs, processes, or product by reducing cost, improving efficiency, or quality. Proactively contributes during brainstorming sessions.

Technical Writing: Maintains knowledge of existing technology documents. Writes basic documentation on how technology works. Contributes clear documentation on multiple systems used. Able to document systems designs, business requirements and technical interpretation. Develops and provides technical data for incorporation into internal presentations.

Technical Leadership: Collaborates with technical teams and utilizes system expertise to deliver technical solutions. Continuously learns and teaches others existing and new technologies. Contributes to the development of others through mentoring or in-house workshops and learning sessions. Influence technology and policy decisions made across the appropriate functional organization.

Technology Strategy: Contributes to new and existing technology options that supports business goals.
Be responsible for the installation and maintenance of the operating system and application server configurations on the UNIX servers in the environments, including management of virtualization in the environment and building automation to manage systems at scale.

  • Supplemental Region/Market Functions:
  • Strategic end to end dimensioning, planning and performance of the network
  • Development of optimization features and processes
  • Provides capacity plans and performance reports
  • Provides regular performance reports for nodes, interfaces, and services across
  • Supports performance related lab and FOA activities
  • Systems Engineering and design of T-Mobile's Network
  • Feasibility analysis of new technologies, products, features, and services
  • In depth analysis (both fiscal and technical) and design of new features and technologies.


  • 5+ Years Technical engineering experience
  • Systems engineering and technical expertise in the planning, design, and implementation of highly available UNIX systems.
  • Demonstrated ability to manage infrastructure-related projects including installation of hardware and software solutions (for mainframe, distributed servers, storage, middleware, and networking)
  • Experience with automation and devops toolsets, including Puppet, Chef, Ansible, Jenkins, Git, and Source Control.
  • Proficient in UNIX OS administration (Linux RHEL 6 and 7, AIX on Power).
  • Proficient in IBM Power Platform including HMC administration, Firmware updates and frame maintenance.
  • Experience with UNIX Shell Scripts.
  • The ability to conduct Technology and Capacity assessments.
  • Focus: Able to communicate goals in support of the business' mission.
  • Drive: Self-motivated and able to work well under pressure
  • Teamwork: Ability and desire to work cooperatively with others on a team. Develop, maintain, and strengthen partnerships who can provide information, assistance, and support.
  • Communication: The ability to ensure that information is passed on to others who should be kept informed. Express oneself clearly in conversations and interactions with others. Clear business and technical writing skills.
  • Customer Focus: The ability to demonstrate concern and meet external and/or internal customers' needs.
  • Analytical: The ability to tackle a problem by using a logical, systematic, sequential approach.
  • Technical Expertise: The ability to demonstrate depth of knowledge and skill working with UNIX platforms.
  • Forward Thinking: The ability to anticipate the implications and consequences of situations and take appropriate action to be prepared for possible contingencies.
  • Influencing Others: The ability to gain others' trust and support for ideas, proposals, projects, and solutions.
Desired Qualifications
  • Scrum/Agile framework experience.
  • Experience with JIRA or like software for work management.
  • Automation mindset with up to date scripting skills to match.
  • Working knowledge of network components (switches, routers, port configurations).
  • The ability to effectively adapt to rapidly changing technology and to apply it to business needs.
  • Strong security administration practices.

Minimum Required
  • Bachelor's Degree. Engineering/Computer Science, or equivalent experience

Company Profile:

As America's Un-carrier, T-Mobile US, Inc. (NASDAQ: TMUS) is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The company's advanced nationwide 4G and 4G LTE network delivers outstanding wireless experiences for customers who are unwilling to compromise on quality and value. Based in Bellevue, Washington, T-Mobile US provides services through its subsidiaries and operates its flagship brands, T-Mobile and MetroPCS. For more information, please visit

EOE Statement:

We Take Equal Opportunity Seriously - By Choice

T-Mobile USA, Inc. is an Equal Opportunity Employer. All decisions concerning the employment relationship will be made without regard to age, race, ethnicity, color, religion, creed, sex, sexual orientation, gender identity or expression, national origin, marital status, citizenship status, veteran status, the presence of any physical or mental disability, or any other status or characteristic protected by federal, state, or local law. Discrimination or harassment based upon any of these factors is wholly inconsistent with our Company values and will not be tolerated. Furthermore, such discrimination or harassment may violate federal, state, or local law.

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