Site Reliability Engineer - Black Lotus Labs

Company: Lumen
Location: Denver
Posted on: June 1, 2025

Job Description:

About Lumen Lumen connects the world. We are igniting business growth by connecting people, data and applications - quickly, securely, and effortlessly. Together, we are building a culture and company from the people up - committed to teamwork, trust and transparency. People power progress. - We're looking for top-tier talent and offer the flexibility you need to thrive and deliver lasting impact. Join us as we digitally connect the world and shape the future. The Role
Lumen's Black Lotus Labs is seeking a Site Reliability Engineer to join our US-based Information Security / Big Data team. This small team of passionate security researchers works on vast, unique information security related data sets using our distributed computing cluster. The team is looking for a knowledgeable Linux admin with a passion for learning, running distributed systems, and an interest in the security domain. This is a team of people that love to be creative, learn new things, and innovate using their expertise to make an impact in the information security world. If you enjoy being at the cutting edge of technology and making the Internet a safer place, then this is the job for you.
This position will work within the platform and infrastructure of Black Lotus Labs, supporting the ongoing operations of a big data infrastructure that is used to ingest, parse, store, and analyze cyber threats, as well as supporting the operations of other systems to facilitate cyber security research and analysis. The work effort of the role is focused on the ongoing operational support of on-premises and cloud hosted Linux (Ubuntu) systems that support our Hadoop ecosystem (HBase, HDFS, Spark, Kafka, etc.), Elasticsearch and Redis clusters, Docker using Docker Swarm, a malware environment, and a network of honeypots. - The Main Responsibilities

• Responding to system alerts -
• Investigating of system resources and processes issues
• Maintain system infrastructure
• Tune and optimization systems
• Adding to the monitoring and alerting systems What We Look For in a Candidate
  
  • Responding to system alerts -
  • Investigating of system resources and processes issues
  • Maintain system infrastructure
  • Tune and optimization systems
  • Adding to the monitoring and alerting systems
  • What we look for in a candidate
  • Candidates must have a strong background demonstrating
  • Knowledge of big data systems like Hadoop
  • Knowledge of Linux administration
  • Knowledge of system logging
  • Knowledge of host networking
    Highly desired skills, experience, or knowledge will include: -
    • Experience with Hadoop distributions -
    • Experience with Docker and Docker Swarm -
    • Experience with Gitlab repository -
    • Scripting and automation (Bash/Python) of systems
    • Experience with CI/CD deployment tools
    • Experience with client/server architecture
    • Administrating virtual machines on cloud providers
    • Securing Linux systems and associated applications
    • Knowledge of iptables and nftables tools
    • Managing system with infrastructure tools like Salt or Bash
    • Administrating Elasticsearch clusters 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:
      $103,711 - $138,281 in these states: AL, AR, AZ, FL, GA, IA, ID, IN, KS, KY, LA, ME, MO, MS, MT, ND, NE, NM, OH, OK, PA, SC, SD, TN, UT, VT, WI, WV, and WY.
      $108,896 - $145,195 in these states: CO, HI, MI, MN, NC, NH, NV, OR, and RI.
      $114,082 - $152,109 in these states: AK, CA, CT, DC, DE, IL, MA, MD, NJ, NY, TX, VA, and WA.
      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: What to Expect Next
      #LI-JS1 Requisition #: 338184 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. - 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. Application Deadline
      06/01/2025

Keywords: Lumen, Greeley , Site Reliability Engineer - Black Lotus Labs, Engineering , Denver, Colorado