SR IT SYSTEMS ENGINEER - PUB SEC
$88.86k - $118.48kLumen
Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high‑performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities.
At Lumen, you’ll work on infrastructure customers rely on today and build for what’s next, where performance, security, and resilience matter.
This is a high accountability environment where bold ideas drive real innovation for our customers, partners, and industry. The work is challenging, expectations are clear, and trust is built into how we operate. If you’re ready to take ownership, deliver meaningful impact, and help shape the future of AI‑ready connectivity, join us today.
The Role
The Senior IT Systems Engineer provides advanced Tier II support by troubleshooting and repairing network devices, tools, and services for a nationwide fiber optic transport network as well as network support for two (2) geographically separated Network Operation Centers (NOC). The IT System Engineer II is operationally responsible for all IP and network management applications associated with the IP and transport platforms and maintaining 100% availability of IP and Network Management services in engineering and operations environment.
The Main Responsibilities
- Perform Transport Network Management functions in engineering and operations environment; operates as a technical SME.
- Work Tier-2 trouble escalations for SONET, OTN, and DWDM troubles.
- Trouble shoot and coordinate Tier-2 Network Implementations projects; services as technical POC for service Provisioning, configurations, and Test and Turn-up processes. Interface with Lead Engineers with network requirements and designs.
- Work and coordinate Tier-2 Network deactivation and decommission of Transport SONET, OTN, DWDM transport devices.
- Write and maintain technical operational documentation and SOP for Transport discipline supporting the NOC.
- Develop and maintain Circuit Layout Records, Network Diagrams, and other supporting documentation. Review and provide feedback to network as-built, Engineering Development Plans, and configuration management drawings.
What We Look For in a Candidate
Basic Qualifications:
Requires a Top Secret/SCI clearance.
On-call after hours/on-call support as required.
Expected to work in a shift environment in support of 24x7 operations.
Up to 10% travel can be expected.
Must have technical skills and experience in the OTN/SONET/DWDM profession.
Operate and accomplish technical tasks with minimum guidance.
Security+ or equivalent IAT/IAM/IASAE Level 2 of DOD 8570.1 is required.
Preferred Qualifications:
Bachelor’s degree or equivalent experience in an Information Technology field.
At least 5 years of experience in a network management environment.
Demonstrates a high level of proficiency in the OTN/SONET/DWDM profession and is required.
Expertise in the uses of network management protocols, tools and products such as One Control, MCP, DNA, TNMS, Remedy.
Fluent in the use of Microsoft Office tools to include Outlook, Excel, Word, PowerPoint, and Visio.
Ciena OC-A certification is preferred.
High level knowledge of DWDM, SONET, OTN, and TDM technology.
Compensation
This information reflects the anticipated base salary range for this position based on current national data. Minimums and maximums may vary based on location. Individual pay is based on skills, experience and other relevant factors.
Location Based Pay Ranges
$88,860 - $118,480 in these states: CO
Lumen offers a comprehensive package featuring a broad range of Health, Life, Voluntary Lifestyle benefits and other perks that enhance your physical, mental, emotional and financial wellbeing. We're able to answer any additional questions you may have about our bonus structure (short-term incentives, long-term incentives and/or sales compensation) as you move through the selection process.
Learn more about Lumen's:
#LI-Remote
What to Expect Next
Requisition #: 342493
Life at Lumen
Life at Lumen is human and connected, even in a fast moving, AI‑focused organization. We set clear expectations and trust people to meet them. With real support and shared accountability, teams collaborate better, move faster, and deliver meaningful outcomes.
Our Lumen 8 behaviors guide how we interact, make decisions, and work together, shaping a culture built to perform and win.
To learn more about Life at Lumen and how we live the Lumen 8, please visit:
Background Screening
If you are selected for a position, there will be a background screen, which may include checks for criminal records and/or motor vehicle reports and/or drug screening, depending on the position requirements. For more information on these checks, please refer to the Post Offer section of our FAQ page . Job-related concerns identified during the background screening may disqualify you from the new position or your current role. Background results will be evaluated on a case-by-case basis.
Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
Equal Employment Opportunities
We are committed to providing equal employment opportunities to all persons regardless of race, color, ancestry, citizenship, national origin, religion, veteran status, disability, genetic characteristic or information, age, gender, sexual orientation, gender identity, gender expression, marital status, family status, pregnancy, or other legally protected status (collectively, “protected statuses”). We do not tolerate unlawful discrimination in any employment decisions, including recruiting, hiring, compensation, promotion, benefits, discipline, termination, job assignments or training.
Privacy Notice
Lumen is committed to protecting the privacy and security of personal information collected during the recruitment and hiring process. Our Applicant Privacy Notice explains how we collect, use, disclose, and protect applicant information, as well as how individuals may request access to or deletion of their personal data.
To review Lumen’s Global Employment Applicant and Talent Community Privacy Notice, please visit:
Disclaimer
The job responsibilities described above indicate the general nature and level of work performed by employees within this classification. It is not intended to include a comprehensive inventory of all duties and responsibilities for this job. Job duties and responsibilities are subject to change based on evolving business needs and conditions.
In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
Please be advised that Lumen does not require any form of payment from job applicants during the recruitment process. All legitimate job openings will be posted on our official website or communicated through official company email addresses. If you encounter any job offers that request payment in exchange for employment at Lumen, they are not for employment with us, but may relate to another company with a similar name.
$140k - $150k
Energy Talent Search seeks a Senior Technical Accounting & SEC Reporting professional in Denver, United States. This role involves owning external reporting processes and preparing audit-ready financial statements. Candidates must have a CPA, direct SEC reporting experience...Senior$90k - $120k
...seeking a detail-oriented Corporate Paralegal to support their legal team. Responsibilities include managing contracts, assisting with SEC filings, conducting legal research, and maintaining corporate records. The ideal candidate has a Bachelor’s degree, paralegal...Senior- Quantinuum is seeking a SEC Reporting and Technical Accounting Manager in Denver, Colorado. In this role, you will execute financial reporting, ensuring compliance with SEC regulations and US GAAP standards. The ideal candidate will manage complex technical accounting matters...Senior
$98.59k - $173.58k
...business structure, associated workflows, third‑party business systems, and integration points. Share knowledge and coach new team members... ...and/or telecommunications Broad knowledge of ArcGIS from an IT context (e.g., hardware, storage, security, networking, web services...Senior$75.25k
Senior Solution Engineer — United States & Canada | Pax8 Senior Solution Engineer opportunity at Pax8 in the United States and Canada — deliver... ...impact through mentorship and scalable enablement. At Pax8, it’s business — and it’s personal. We value compassionate candor,...SeniorTemporary workRemote workFlexible hours- ...Colorado is seeking a Director of Financial Reporting and Technical Accounting responsible for ensuring the accurate preparation of SEC filings and leading SOX compliance. This role requires a Bachelor's degree in accounting and over 7 years of relevant experience. The...SeniorFull timeWork at office
$98.59k - $173.58k
...business structure, associated workflows, third party business systems, and integration points. Share knowledge and coach new team members... ..., or related industries * Broad knowledge of ArcGIS from an IT context (such as hardware, storage, security, networking, web...SeniorFull time$104.55k - $116.17k
Commerce City is seeking an IT Systems Engineer to support public safety services including police and courts operations. The ideal candidate will manage technical projects, configurations, and administration of systems while providing expert technology support. The position...- ...solutions that increase precision and productivity for Architecture, Engineering, Construction, and Operations. What Makes This Role Great:... ...with complex business needs to achieve data continuity across systems like Autodesk, Bentley, and ESRI. Design and document...Remote workWorldwide
$80k - $120k
First Western Trust in Denver, CO is seeking a Senior Technical Accountant responsible for managing technical accounting areas. The ideal candidate will have 3-5 years of relevant experience, strong knowledge of GAAP, and excellent communication skills. The position offers...Senior$103.71k - $138.28k
...environments and to provide independent efforts to all aspects of system integration including design, analysis, design review, testing... ...knowledge and experience in system architecture and engineering disciplines. Specific technical knowledge of enterprise level...Full timeTemporary workRemote work- ...products while complying with procedures, standards, and Quality System Requirements. Meet critical project timelines. Design... ...applying advanced tolerance analysis. Generate CAD models and engineering drawings primarily within SolidWorks. Design complex mechanisms...SeniorWork at office
- ...Senior Embedded Software Engineer • Must have excellent C programing. • Aerospace/DOD experience strongly preferred. • Strong... ...preferred. • Development/troubleshooting of hardware and software systems. • BS or MS in Computer Science, Computer Engineering, or...Senior
$208k - $260k
A leading cybersecurity firm is seeking a Sr. Sales Engineer in Colorado to provide technical expertise during the sales process. The role involves conducting product demonstrations, supporting POC evaluations, and collaborating with customers to meet security needs. Candidates...SeniorRemote job- First Western is seeking a Senior Technical Accountant in Denver, Colorado. This role focuses on developing and monitoring technical accounting areas including preparing monthly entries and reconciliations. The ideal candidate will have strong GAAP knowledge and experience...Senior
- The Hong Kong Study Skills Research Institute is looking for a Senior Geospatial Software Developer to join their team in Denver, Colorado. This position involves advanced technical responsibilities in the design, development, and support of geospatial business applications...Senior2 days per week
$105k - $141.75k
...work under pressure Experience in complex IT project implementations, customizations... ...Enterprise COBOL or PLI programming experience System level experience of IBM CICS; IMS and JCL... ...platforms. Familiarity with agile engineering practices like Test Automation, Test-Driven...SeniorRemote workWorldwide$132.06k - $186.44k
...applicants. Senior Customer Solutions Engineer, Streaming Media Fastly is looking for... ...technical expertise including cloud, system, and Fastly architecture, along with scripting... ...extension of the customer's teams. The Sr. CE will be responsible for the technical...SeniorLocal areaRemote workFlexible hours- Frontier Airlines is seeking a Senior Accountant of Financial Reporting based in Denver, Colorado. This position is accountable for the timely preparation of all internal and external financial reporting, ensuring compliance with regulations and company policies. Candidates...Senior
- Palo Alto Networks, Inc. is seeking a Senior Solutions Engineer in Denver, Colorado. In this role, you will demonstrate CyberArk’s identity security solutions to Enterprise customers, guiding them through evaluations and showcasing product benefits. Your expertise in security...Senior
- BOSTON TRUST WALDEN COMPANY is seeking a Senior Sales Engineer to join their Enterprise team. The role is focused on leveraging technology to improve safety and operational efficiency for large organizations. Key responsibilities include securing technical wins and building...SeniorRemote jobFlexible hours
$80k - $120k
First Western Financial, Inc. is seeking a Senior Technical Accountant in Denver, CO. This role involves the preparation and analysis of complex accounting areas, ensuring GAAP compliance and participating in the annual reporting process. Ideal candidates will have 3-5 ...Senior$198k - $273k
Job Summary As a Senior Solutions Engineer at CyberArk, you will be at the forefront of demonstrating the value of our identity security solutions to both prospective and existing Enterprise customers. In this role, you will showcase how CyberArk secures critical assets...SeniorVisa sponsorshipWork visa$220k - $288.75k
...Senior Solution Engineer At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don't just use tools; you possess...SeniorFlexible hours$250k
...at the center of that transformation. As our Senior Solutions Engineer, you won’t just be supporting a product; you’ll be shaping how... ...constant evolution. Bonus Points: Experience in SaaS, AI-enabled systems, or open-source communities, but a 'growth mindset' and...Senior$112k - $220k
Job Summary The Senior Solutions Engineer is responsible for designing, developing and supporting scalable technology solutions that enable... ...Copilot, Cursor, or similar platforms. Integrate enterprise systems, databases, APIs, cloud services, and third-party platforms....SeniorWork at officeRemote work$208k - $254k
Available locations: Denver, CO What you'll do as a Senior Solutions Engineer, Majors Accounts The Solution Engineering organization is responsible for the technical sale of the Cloudflare solution portfolio, ensuring maximal business value, fit-for-purpose solution design...SeniorTemporary workFlexible hours- Autonomous Solutions in Denver, Colorado, is seeking a Robotic Arm Engineer II to lead the engineering and integration of FANUC robotic arms in autonomous systems. You will oversee lifecycle ownership from concept to deployment, ensuring innovative solutions. The ideal...Senior
$133k - $161k
...CesiumAstro is a developer and pioneer of out‑of‑the‑box communication systems for satellites, UAVs, launch vehicles, and other space and... .... We are seeking an experienced Senior Embedded Software Engineer II with a strong background in developing embedded applications...SeniorPermanent employmentFull timeContract workWork experience placementLocal area- Enavate is seeking a Senior Sales Engineer in Denver, CO to drive client success through the Microsoft Dynamics 365 Business Central ecosystem. This hybrid role requires 5+ years in sales or solution consulting and expertise in Business Central. Responsibilities include...SeniorRemote job
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to SR IT SYSTEMS ENGINEER - PUB SEC. Be the first to apply!
- senior performance engineer Thornton, CO
- senior manager legal Thornton, CO
- remote senior project manager Thornton, CO
- senior cloud network engineer Thornton, CO
- senior software engineer remote Thornton, CO
- senior performance tester Thornton, CO
- senior level Thornton, CO
- senior implementation engineer Thornton, CO
- senior application administrator Thornton, CO
- senior application security Thornton, CO


