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.

Location

This is a remote position with customer travel in the DC area approximately 1 time per month.

The Role

Black Lotus Labs is seeking a remote Threat Intelligence Researcher on the Research & Analysis team focused on tracking advanced threats. This team leverages Lumen’s global visibility across one of the world’s largest and most interconnected IP backbones, a petabyte-scale compute, AI-assisted workflows, proprietary telemetry, and third-party data sources to conduct cutting-edge threat research, hunt and track advanced persistent threat actors (APTs), identify emerging criminal infrastructure, and convert large-scale observations into actionable intelligence for customers.

This role sits at the intersection of threat intelligence, data science, and security automation. The successful candidate will help shape the next generation of intelligence operations by building AI-assisted workflows that augment analyst tradecraft, accelerate threat discovery and detection development, automate enrichment and intelligence production, and transform large-scale telemetry into actionable security insights while maintaining analytical rigor, explainability, and operational guardrails.

The Main Responsibilities

Sets direction for systems, networks, user services and vendor development efforts.
Consults and assesses industry advances in technical security technologies, and tests solutions to validate features and functions.
Partners and collaborates with others in the resolution of interoperability issues to obtain successful integration of security solutions across all platforms.
Ensures the implementation of technical security solutions utilizing expertise learned from multiple and complex client environments.

What We Look For in a Candidate

Proven experience in threat analysis and in-depth technical security research, with a track record of identifying and tracking nation-state malicious infrastructure activity with an emphasis on network traffic analysis.
Fluency in advanced threat hunting methodologies, attacker tactics, techniques, and procedures (TTPs), and the ability to derive actionable threat hunts, detections, and intelligence requirements from complex data sets.
Experience with large-scale data analysis platforms with tools such as PySpark.
Experience with telemetry collection and analysis, including OSINT, proprietary endpoint and network data, DNS and routing data, TTP-based threat hunting, and/or threat hunt tooling that improves cross-organization visibility and supports public-private or multi-company collaboration.
Proven communication and presentation skills, including the ability to clearly and concisely convey complex technical findings, automation-derived insights, and intelligence judgments to technical, executive, customer, and partner audiences.

Well-experienced candidates may also have the following skills:

Proficiency in malware reverse engineering and incident response. 
Software development experience with Docker, distributed data technologies such as Hadoop or Spark, cloud AI services, vector databases, workflow orchestration, and machine learning frameworks such as TensorFlow or PyTorch.
Experience with agentic AI or workflow frameworks such as MCP-based architectures.
Active TS/SCI

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:

$129,639 - $172,852 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.
$136,121 - $181,494 in these states: CO, HI, MI, MN, NC, NH, NV, OR, and RI.
$142,603 - $190,137 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:

Requisition #: 344418

The above job definition information has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of employees assigned to this job. Job duties and responsibilities are subject to change based on changing business needs and conditions.

We are committed to making reasonable adjustments to the recruitment process for people with disabilities. If there is anything we can do to help you, please let us know.

We are committed to providing equal employment opportunities to all persons regardless of race, religion, colour, sex, age, disability or sexual orientation or any other status protected by local or national law. We do not tolerate unlawful discrimination in any employment decisions, including recruiting, hiring, compensation, promotion, benefits, discipline, termination, job assignments or training.

Join a diverse and inclusive culture where everyone is welcome and every voice is heard. A culture where people feel they belong, can be themselves and feel inspired to share different perspectives. Our culture, shared values and behaviours truly make Lumen a fantastic place to work and provides an environment where people can genuinely thrive.

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Black Lotus Labs Threat Researcher - APT Research

About the Job

Requirements

Responsibilities

Desired Qualifications

Location

The Role

The Main Responsibilities

What We Look For in a Candidate

Compensation

About the Company

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