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 The Sr Engineer will lead and participate in multiple team environments and to provide independent efforts to all aspects of system integration including design, needs analysis, design review, testing, implementation, and validation. As a highly technical and hands-on position, the Sr Engineer will be responsible for systems in support of Lumen’s Government and commercial managed security services platforms addressing .gov and critical infrastructure protection missions. The Main Responsibilities - Recommends optimized solutions to support current and long-range planning and collaborates with project team leads in the selection, recommendation, and approvals of tools and technologies to improve efficiencies, reduce costs and increase customer satisfaction. - Create and maintain reports for patch compliance and system audit data. - Participate in ongoing operational projects. - Provide recommendations for system automation. - Troubleshoot hardware and software issues as they arise. Document issues and associated resolutions to problems. - Participate in OS patch management and coordination. - Develop and test Windows security patch packages. - Troubleshoot Windows OS and Microsoft application security patch installations. - Ongoing maintenance & administration of assigned systems. - Adherence to policies, processes, and procedures within your areas of responsibility. - Assistance with the execution of projects related to areas of responsibility. - Evaluate, build, integrate, test and prepare systems for operational use and patches for rapid remediation and deployment. What We Look For in a Candidate Basic Qualifications - Knowledge and experience should include computer network operations, network access and protection techniques and technologies, software coding, encryption, and cross-domain solutions - Knowledge and experience in system architecture and engineering disciplines. Specific technical knowledge of enterprise level networking and network security. - Available 24/7 for Network Outages and Maintenance window work. - Must be willing to work rotating, on-call, and or work after hours as needed. - Candidate must be a US Citizen with an active DoD TOP SECRET/SCI Level clearance Preferred Qualifications: - Bachelor’s degree and/or advanced degree in Electrical/Computer Engineering or Computer Science and experience, or a strong interest in, the cybersecurity field. - 5+ years of experience in Information Security, Information Assurance (IA), or Cyber Security programs. - 5+ years of experience with system security concepts, system security assessments, threat and vulnerability management, penetration testing, vulnerability assessments, vulnerability mitigation, and/or implementing and managing penetration testing tools. - 5+ years of experience in reporting status and recommendations for improvements to either federal government or commercial leadership. Develop and implement patch management methodologies using various automation toolsets - Demonstrated ability to work in a consultative manner with others, i.e. establish rapport, interview/fact-find, define requirements, present options/recommend solutions, follow-up, and customer focused behavior. - Proven ability to work in a dynamic team environment with changing requirements and competing priorities 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: $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. $87,117 - $116,156 in these states: CO, HI, MI, MN, NC, NH, NV, OR, and RI. $91,266 - $121,688 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: - Benefits - Bonus Structure #LI-Remote Requisition #: 341444 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.

• Coordinate with DMDC to administer all aspects of the Risk Management Framework (RMF) to ensure DTMO systems maintain their Authority to Operate (ATO) • Collaborate with the DTMO Information System Security Manager (ISSM) to maintain and update system security authorization packages • Support the Authorizing Official (AO) and Security Control Assessor (SCA) to ensure compliance with DoD cybersecurity policies and security control requirements • Manage and track Plans of Action and Milestones (POA&Ms), ensuring remediation actions are documented, monitored, and closed in coordination with the ISSM • Participate in security audits, assessments, and authorization activities, providing documentation and technical support • Coordinate with DMDC to monitor and report the security posture of DTMO systems using automated and manual reporting tools • Monitor and analyze security event logs, generate reports, and identify potential risks or anomalous activity • Review vulnerability scan results, recommend remediation strategies, and coordinate implementation of security patches and fixes • Validate implementation of security controls and access control mechanisms to ensure proper protection of DTMO systems • Develop and submit Deviation Requests for authorized exceptions to DoD Security Technical Implementation Guide (STIG) requirements when necessary • Develop and maintain cybersecurity documentation including System Security Plans (SSPs), Security Assessment Reports (SARs), and Risk Assessment Reports (RARs) • Support incident response activities, coordinating with DMDC and DTMO stakeholders to investigate and resolve cybersecurity incidents • Provide cybersecurity guidance and recommendations to DTMO leadership and technical teams • Support cloud security compliance and ensure adherence to DoD cloud security and computing policies • Coordinate security assessments and penetration testing efforts to evaluate system security posture • Support continuous monitoring activities and ensure compliance with DoD Information Assurance Vulnerability Management (IAVM) requirements • Stay informed on emerging cybersecurity threats and vulnerabilities, recommending mitigation strategies and security improvements

About the Role Sellers Dorsey is seeking a new Development Operations Engineer (DOE) who will be responsible for bridging the gap between software development and security engineering operations. As the DOE, you will design, build, and maintain automated systems and tools that facilitate software development, testing, deployment, and monitoring, with a strong focus on continuous integration and continuous delivery (CI/CD) practices. You will also streamline the software release life cycle for the firm – ensuring efficient and reliable software delivery, infrastructure development, and system performance. Completes other duties as assigned. Key Responsibilities - Security & Monitoring: Develop and implement application security vulnerability practices. Deploy CNAPP/CSPM using tools like Microsoft native Defender for Cloud, Prisma Cloud, Wiz. Implement security best practices within the CI/CD pipeline and infrastructure to ensure application security. Responsible for GitHub Enterprise Administration. Ensure proficient in application penetration testing. Assist developers with training and resolving vulnerabilities in a timely manner. Active participation in Change and Architecture Review Meetings. - Automation: Develop and implement automation scripts to streamline repetitive tasks like infrastructure provisioning, code builds, testing, deployments, and monitoring across different environments. CI/CD Pipeline Management: Design, build, and maintain continuous integration and continuous delivery pipelines using tools like Sonar, Azure DevOps, GitLab. - Infrastructure Management: Manage cloud infrastructure Azure including provisioning, scaling, and configuration management using tools like Terraform or Ansible. Set up monitoring/alert systems to identify potential issues in production environments and create alerts to notify relevant teams. Work closely with our developers, QA engineers, and system administrators to identify and resolve issues throughout the development lifecycle. Debug and troubleshoot technical issues related to deployments, infrastructure, and application performance. - Continuous Learning & Application: Research and analyse the latest security threats, emerging technologies, and DevSecOps trends to stay ahead of evolving risks. Engage in ongoing professional development by attending training sessions, obtaining certifications, and actively participating in industry discussions. Apply new knowledge to improve security strategies, enhance system protections, and drive innovation in DevSecOps practices. Key Qualifications - Bachelor's degree in Computer Science, Information Systems, or equivalent technical discipline. - Four (4) years of experience in a DevSecOps or DevOps Engineer role. Engineering product development in full life cycle (healthcare, preferred). - Proven experience as a DevOps Engineer, with a focus on Microsoft technologies. - Knowledge of security best practices in DevOps. - Experience with monitoring tools like Prometheus, Grafana, or Azure Monitor. - Knowledge of security best practices in DevOps. - Experience with security frameworks and compliance standards (e.g., HIPAA, HITRUST, SOC2, ISO 27001, NIST, GDPR, etc.). Additional/Preferred Education and Certifications - Programming Languages: Proficiency in scripting languages like Python, Bash, Ruby, and PowerShell. - Version Control: Expertise in Git and related branching strategies. - Cloud Computing: Deep understanding of cloud platform Azure. - Configuration Management Tools: Experience with tools like Ansible, Chef, or Puppet. - Security: Sonar Qube, Acunetix, Prisma Cloud, Wiz, Defender for Cloud. - CI/CD Tools: Knowledge of Sonar, Azure DevOps, or similar platforms Monitoring Tools: Familiarity with tools like Prometheus, Grafana, and Datadog. Other requirements - Customer-focused – providing consistent service excellence. - Problem-Solving Skills: Strong analytical skills to identify and solve security and operational challenges in a timely and effective manner. - Collaboration and Communication: Ability to work closely with development, operations, and security teams to ensure smooth deployment and integration of new software releases. Excellent communication skills to articulate security concerns and solutions effectively. - Strong interpersonal and conflict resolution skills. - Critical thinking and problem-solving skills. - Attention to detail. - Flexible thinking, including the ability to pivot and try new approaches when faced with challenges. - Ability to work on multiple projects in various stages simultaneously. - Desire to work in a fast-paced, high-energy environment. - Ability to prioritize and demonstrate relentless discipline in achieving goals. Compensation & Benefits The anticipated salary range for candidates is $105,400/year in our lowest geographic market range to up to $140,000/year in our highest geographic market range. The final pay offered to a successful candidate will be dependent on several factors that may include but are not limited to the type and years of experience within the job, the type of years and experience within the industry, the candidate’s education, and the candidate’s market location. Typically, candidates are not hired near the top of the range and compensation decisions are made based upon Sellers Dorsey’s Total Compensation Policies & Guidelines. The successful candidate will also be eligible to participate in our annual Corporate Incentive Plan (CIP) that can range to up to 10% of annual salary. Provided they meet all eligibility requirements under the applicable plan documents, the successful candidate (and their eligible dependents) will be eligible to enroll in group healthcare plans that offer medical, dental, and vision and for insurance plans offering short term disability, long term disability, and basic life. Employees are also able to enroll in Sellers Dorsey’s 401k plan provided they meet plan requirements. Sellers Dorsey offers a Flexible Time Off that allows employees to use what they need. Additionally, we offer 10 paid holidays throughout the calendar year, paid time off for qualifying medical leave, and up to 12 weeks of combined paid parental and bonding leave. The foregoing benefits and paid time off, including an employee’s eligibility therefore, will be controlled by applicable plan documents and Sellers Dorsey policy. This is intended to provide a general description of benefits and other compensation and is not a substitute for applicable plan documents or company policies. Sellers Dorsey is an Equal Employment/Affirmative Action employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state, or local law. If you need a reasonable accommodation for any part of the employment process, please contact us by email at HumanResources@sellersdorsey.com and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis. Please note that only inquiries concerning a request for reasonable accommodation will be responded to from this e-mail address. Sellers Dorsey maintains a Drug-Free workplace.

Ready to be pushed beyond what you think you’re capable of? At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system. To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems. Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no better place to be. While many roles at Coinbase are remote-first, we are not remote-only. In-person participation is required throughout the year. Team and company-wide offsites are held multiple times annually to foster collaboration, connection, and alignment. Attendance is expected and fully supported. We are looking for a Data Protection Engineer (L4) to help implement and maintain our data protection capabilities, ensuring the Coinbase ecosystem remains resilient against security threats. You will contribute to our data protection strategy, helping to balance strong security controls with the speed of a decentralized tech environment. You will focus on automating data protection operations, utilizing tools including LLMs and agentic AI, to build scalable Data Loss Prevention (DLP) solutions. You will work with other teams to mitigate risk and ensure compliance with global regulations. What you’ll be doing (ie. job duties): - Support and expand data loss prevention capabilities to protect Coinbase ecosystem from sophisticated data security incidents - Support execution of the long term strategy for the Data prevention program to harden security posture against data security threats - Implement and maintain complex designs/controls across a decentralized tech environment to promote security without impeding the speed of business - Implement and deploy Data Protection tools and technologies in concert with cross functional teams (ie. endpoint security, information technology, and others) - Demonstrate operational efficiency across a wide array of DLP Engineering & Operations leveraging LLMs and agentic AI - Bring an automation first mindset to champion and drive a more streamlined and scalable approach towards DLP operations - Produce quantitative and qualitative metrics to apprise Data Protection Leadership of programmatic impact and challenges - Collaborate across Security and Privacy Teams and lead cross functional data protection initiatives - Collaborate with cross functional teams like engineering, product development, compliance to ensure timely remediation - Work in concert with risk teams to measure control effectiveness and address changes in laws/regulations globally What we look for in you (ie. job requirements): - You are an experienced security engineer in the data protection space who can deliver measurable results - You have the technical acumen to solve operational issues with an engineering solution - You have direct experience testing, tuning, and implementing data prevention controls across multiple OS stack - You are comfortable manipulating and orchestrating controls to address multiple operating systems (iOS / Chrome) and decentralized datasets - You are adept at creating scalable processes, automating where possible, and leveraging ML/AI where feasible to maximize efficiency - You can be trusted to be discreet and thoughtful while working cross functionally to mitigate risk - You are actively aware of the insider threat landscape, and understand the legal, regulatory, and ethical considerations of working with sensitive data across a global enterprise - You have experience working and building Insider Threat technologies (such as Security Information Event Management - SIEM, User Behavioral Analytics - UBA, Data Loss Prevention - DLP) and an understanding of investigations and/or the intelligence cycle - You have excellent verbal and written communication skills. Other team members ask for your input to communicate clearly and concisely and you are comfortable composing briefs and assessments consumed by leadership - Business acumen: Proven understanding of business dynamics, goals, and product strategy. Knowledge of how Security fits into Coinbase’s overall business. - The ability to balance business needs, a sense of urgency, conflicting constraints, and shipping high quality and pragmatic solutions in a fast-moving and quickly-growing company. - Demonstrates the ability to responsibly use generative AI tools and copilots (e.g., LibreChat, Gemini, Glean) in daily workflows, continuously learn as tools evolve, and apply human‑in‑the‑loop practices to deliver business‑ready outputs and drive measurable improvements in efficiency, cost, and quality. Nice to haves: - 3+ years of security engineering experience solving complex security challenges across enterprise-wide DLP Programs - Solving operational problems leveraging engineering / automation first mindset - Experience in Web3 and crypto forward organizations or traditional financial institutions Job ID: P76311 #LI-Remote Pay Transparency Notice: Depending on your work location, the target annual base salary for this position can range as detailed below. Total compensation may also include equity and bonus eligibility and benefits (including medical, dental, vision and 401(k)). Annual base salary range (excluding equity and bonus): $144,500—$170,000 USD Please be advised that each candidate may submit a maximum of four applications within any 30-day period. We encourage you to carefully evaluate how your skills and interests align with Coinbase's roles before applying. Commitment to Equal Opportunity Coinbase is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Coinbase will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable federal, state and local law. For US applicants, you may view the Employee Rights and the Know Your Rights notices by clicking on their corresponding links. Additionally, Coinbase participates in the E-Verify program in certain locations, as required by law. Coinbase is also committed to providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact us at accommodations[at]coinbase.com to let us know the nature of your request and your contact information. For quick access to screen reading technology compatible with this site click here to download a free compatible screen reader (free step by step tutorial can be found here). Global Data Privacy Notice for Job Candidates and Applicants Depending on your location, the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required. For US applicants only, by submitting your application you are agreeing to arbitration of disputes as outlined here. AI Disclosure For select roles, Coinbase is piloting an AI tool based on machine learning technologies to conduct initial screening interviews to qualified applicants. The tool simulates realistic interview scenarios and engages in dynamic conversation. A human recruiter will review your interview responses, provided in the form of a voice recording and/or transcript, to assess them against the qualifications and characteristics outlined in the job description. For select roles, Coinbase is also piloting an AI interview intelligence platform to transcribe and summarize interview notes, allowing our interviewers to fully focus on you as the candidate. The above pilots are for testing purposes and Coinbase will not use AI to make decisions impacting employment. To request a reasonable accommodation due to disability, please contact accommodations[at]coinbase.com