{"id":4277521,"url":"https://alion.io/job/lumen-technologies-senior-systems-security-engineer","title":"Senior Systems Security Engineer","company":{"id":94167,"name":"Lumen Technologies","domain":"lumen.com","url":"https://alion.io/company/lumen-com","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Eightfold","truth_index":{"grade":"B","score":80,"open_postings":40,"ghost_share":0.175,"stale_share":0.05,"repost_share":0.525,"time_to_fill_p50_days":46,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Security","role_family":"Security","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":82969,"max":110625,"currency":"USD","period":"year","gross":null,"usd_annual":110625},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Docker","optional":false},{"name":"Docker Swarm","optional":false},{"name":"ElasticSearch","optional":false},{"name":"Hadoop","optional":false},{"name":"HBase","optional":false},{"name":"Jira","optional":false},{"name":"Linux","optional":false},{"name":"Redis","optional":false},{"name":"Spark","optional":false},{"name":"Ubuntu","optional":false},{"name":"Bash","optional":true},{"name":"CI/CD","optional":true},{"name":"GitLab","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-11-03T19:43:57Z","employer_posted_date":"2026-11-13","last_verified_at":"2026-11-13T19:27:27Z","board_verified":true,"closed_at":null,"days_open":10,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":10},"description":"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.\nAt Lumen, you’ll work on infrastructure customers rely on today and build for what’s next, where performance, security, and resilience matter.\nThis 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.\nThe Role\nLumen’s Black Lotus Labs is seeking a Lead Site Reliability Engineer and 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.\nThis 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.\nThe Main Responsibilities\nRespond to system alerts and take appropriate action to troubleshoot and resolve identified issues.\nOpen and maintain Jira tickets to track system issues, tasks, and required follow-up activities.\nInvestigate system resources, processes, and performance issues to identify root causes and potential solutions.\nMaintain system infrastructure to support ongoing stability, reliability, and availability.\nTune and optimize systems to improve overall performance, efficiency, and resource utilization.\nEnhance monitoring and alerting systems to improve visibility into system health and proactively identify potential issues.\nWhat We Look For in a Candidate\nRequired\nBachelors Degree\n6 years of experience, or 4 with Masters degree\nPreferred\nMasters Degree\nCandidates must have a strong background demonstrating \nKnowledge of big data systems like Hadoop \nKnowledge of Linux administration \nKnowledge of system logging \nKnowledge of host networking \nHighly desired skills, experience, or knowledge will include:\nExperience with Hadoop distributions \nExperience with Docker and Docker Swarm \nExperience with Gitlab repository \nScripting and automation (Bash/Python) of systems \nExperience with CI/CD deployment tools \nExperience with task tracking software like Jira\nAdministrating virtual machines on cloud providers \nSecuring Linux systems and associated applications \nKnowledge of iptables and nftables tools \nManaging system with infrastructure tools like Salt or Bash \nAdministrating Elasticsearch clusters \nCompensation\nThis 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.\nLocation Based Pay Ranges:\n$82,969 - $110,625 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.\n$87,117 - $116,156 in these states: CO, HI, MI, MN, NC, NH, NV, OR, and RI.\n$91,266 - $121,688 in these states: AK, CA, CT, DC, DE, IL, MA, MD, NJ, NY, TX, VA, and WA.\nLumen 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.\nLearn more about Lumen's:\nBenefits\nBonus Structure\nRequisition #: 344348\nLife at Lumen\nLife 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.\nOur Lumen 8 behaviors guide how we interact, make decisions, and work together, shaping a culture built to perform and win.\nTo learn more about Life at Lumen and how we live the Lumen 8, please visit:\nhttps://jobs.lumen.com/global/en/life-at-lumen\nBackground Screening\nIf 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.\nPursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.\nEqual Employment Opportunities\nWe 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.\nPrivacy Notice\nLumen 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.\nTo review Lumen’s Global Employment Applicant and Talent Community Privacy Notice, please visit:\nhttps://jobs.lumen.com/global/en/privacy-notice\nDisclaimer\nThe 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.\nIn 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.\nPlease 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. 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