Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Security Engineer (Microsoft Defender)

UltraViolet Cyber

Job Description

Job Description

Make a difference here.

UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security operations solutions. Founded and operated by security practitioners with decades of experience, the UltraViolet Cyber security-as-code platform combines technology innovation and human expertise to make advanced real-time cybersecurity accessible for all organizations by eliminating risks of separate red and blue teams.

By creating continuously optimized identification, detection, and resilience from today’s dynamic threat landscape, UltraViolet Cyber provides both managed and custom-tailored unified security operations solutions to the Fortune 500, Federal Government, and Commercial clients. UltraViolet Cyber is headquartered in McLean, Virginia, with global offices across the U.S. and in India. 

UltraViolet Cyber has an exciting position for a Senior Microsoft Cloud Security Engineer as we deploy, manage, and hardening our Microsoft cloud environment, including Azure, Office 365 and Microsoft 365. The Senior Microsoft Cloud Security Engineer should thrive on complexity, possess an analytical mindset, and bring deep expertise on managing and securing Microsoft's cloud platform. You'll collaborate across teams, collaborating with security engineers, cloud architects, identity teams, and incident response analysts to ensure our tenant is resilient, compliant, and always mission ready.

What You'll Do:

- Serve as the go-to, subject matter expert (SME) for securing the Microsoft cloud tenant, advising on architecture, design, and implementation of secure solutions across Azure, O365, and M365.
- Lead the development and enforcement of Conditional Access Policies, aligned with best practices for managing access control for personas, groups, and applications.
- Act as the primary SME in optimizing the Microsoft Defender suite of components (Defender for Endpoint, Defender for Cloud, Defender for Identity, and Defender for Office 365)
- Implement Microsoft Purview, including data classification and sensitivity labels, Data Loss Prevent (DLP), and eDiscovery workflows.
- Design, run and optimize Kusto Query Language (KQL) queries for Azure Sentinel, Defender, and log analytics.
- Review and remediate security controls through vulnerability assessments, penetration tests, and red/blue team engagements.
- Guide cross-functional teams on security controls, compliance requirements, policy, and governance best practices

What You've Have:

- Ability to Obtain DHS EOD Public Trust Clearance
- Master’s Degree + 10 years’ experience OR Bachelor’s degree + 13 years OR 19 years total experience
- Expert-level hands-on experience deploying, managing, and securing Azure, Entra, Defender, Purview, Office 365, and Microsoft 365 in large enterprises.
- Deep understanding of Conditional Access Policies (CAPs), Azure AD/Entra, and Zero Trust principles.
- Proven Track record implementing and managing the full suite of the Microsoft Defender ecosystem and Microsoft Purview (DLP, sensitivity labels, eDiscovery)
- Advanced proficiency writing KQL for detection, investigation, response, and reporting
- Active, expert-level certification such as Microsoft Certified Solutions Expert (MSCE), Microsoft 365 Admin Expert, Microsoft Cybersecurity Architect Expert, AZ-900, AZ-500, SC-900, SC-100, SC-200, SC-300, SC-400, SC-401
- Cybersecurity certifications: Security+
- Strong networking, firewall, VPN, and segmentation knowledge as it relates to cloud deployments
- Exceptional time management, written and communication skills.
- Participate in rotating on-call schedule across the team, to provide incident response or support during outages. 

Desired:


- CISSP, OSCP, GCIH
- ITIL, Agile, or PMP familiarity/certification
- Experience with SOAR platforms (e.g. Splunk, Microsoft Sentinel)
- Hands-on exposure to third-party cloud security tooling (CASBs, CNAAPs, SD-WANs)
- Previous consulting or client-facing delivery experience

UltraViolet Cyber maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect our company's differing products, services, industries and lines of business. Candidates are typically placed into the range based on the preceding factors.

We sincerely thank all applicants in advance for submitting their interest in this position. We know your time is valuable.

UltraViolet Cyber welcomes and encourages diversity in the workplace regardless of race, gender, religion, age, sexual orientation, gender identity, disability, or veteran status. 

If you want to make an impact, UltraViolet Cyber is the place for you! 

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Vacancy posted 8 days ago
Similar jobs that could be interesting for youBased on the Security Engineer (Microsoft Defender) in Arlington, VA vacancy
  •  ...customers who demand experience and proven security models to protect their data. ShorePoint...  ..., we work together in partnership to defend our nation s critical infrastructure while...  ...execution. What you need to know: Microsoft environments such as Microsoft Defender,... 
    Microsoft

    ShorePoint LLC

    Washington DC
    4 days ago
  •  ...UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security...  ...UltraViolet Cyber has an exciting position for a Senior Microsoft Cloud Security Engineer as we deploy, manage, and hardening our Microsoft cloud... 
    Microsoft
    Work at office

    uvcyber

    Arlington, VA
    20 hours ago
  • $100k - $130k

     ...Security Engineer UltraViolet Cyber is a leading platform-enabled unified security operations company providing...  .... Use SIEM, SOAR, EDR, cloud services, and Microsoft enterprise technologies including O365, Azure, Defender, and Entra. Contribute to security planning... 
    Microsoft
    Contract work
    Work at office

    UltraViolet Cyber

    Arlington, VA
    3 days ago
  •  ...and key stakeholders to interpret and implement engineering and operational guidance within a specific security domain or program. Contribute to multiple...  ...Tenable Cloud Security, Wiz, Aqua Security, Trivy, Microsoft Defender for Cloud, Tenable Vulnerability Management,... 
    Microsoft
    Full time
    Work experience placement
    Shift work

    Blue Cross and Blue Shield Association

    Washington DC
    1 day ago
  • $120k - $130k

     ...DescriptionEverforth ECS is seeking an Identity Security Engineer to work in our Washington, DC office /...  ...is configured, documented, and defended to the highest standard.This role...  ...operational playbooksHands-on experience with Microsoft Entra ID (Azure Active Directory),... 
    Microsoft
    Work at office
    Remote work

    ECS Federal

    Washington DC
    1 day ago
  • $135k - $216k

     ...is a next-generation national security company that drives missions...  ...experienced Network Security Engineer (Firewall & Vulnerability Management...  ...initiatives within a hybrid Microsoft, AWS, and Azure federal...  ...implement, and tune Microsoft Defender security policies for Windows... 
    Microsoft
    Contract work
    Temporary work
    Currently hiring
    Remote work
    Shift work

    Peraton Corporation

    Washington DC
    16 hours ago
  •  ...Hi, Azure Cloud Security Engineer Location: Washington, DC metro area | Hybrid, four days onsite per week Employment: Full-time...  ...controls through Conditional Access, Azure Policy, and Microsoft Defender for Cloud regulatory compliance. Evaluate and apply new... 
    Microsoft
    Full time

    PeopleFirst Resources

    Washington DC
    2 days ago
  • $80 - $85 per hour

     ...Akkodis is seeking a Sr Security Engineer for a contract position with a client located in Seattle, WA Pay Range: $80/hr. - $85/hour...  ...Continuous Improvement Build automation with PowerShell, Microsoft Graph, Python, and SailPoint ISC APIs and workflows.... 
    Microsoft
    Hourly pay
    Contract work
    Temporary work
    Local area

    Akkodis

    Washington DC
    1 day ago
  • $120k - $159k

     ...seeking an experienced Cybersecurity Engineer to support enterprise application whitelisting...  ...control, and daily endpoint security operations. This role focuses on designing...  ...Engineer will work extensively with Microsoft Defender for Endpoint, Defender Antivirus, Microsoft... 
    Microsoft
    Temporary work
    Local area
    Remote work
    Visa sponsorship
    Work visa

    BRMi

    Washington DC
    5 days ago
  • $156k - $195k

     ...OnTrac is hiring a Sr Cyber Security Engineer (PAM / IAM)! Founded in 1986, OnTrac has...  ...Privileged Access Management (PAM), Entra ID, Microsoft 365, vulnerability management, and...  ...Online, SharePoint, OneDrive, Teams, Defender, Purview, and the Entra ID tenant,... 
    Microsoft
    Temporary work
    Remote work
    Flexible hours
    Shift work

    OnTrac

    Washington DC
    2 days ago
  •  ...TN 2-3 days/week ~10 + years of IAM engineering, platform engineering, or identity integration...  ..., PingFederate, PingDirectory, Microsoft Entra, and Microsoft Active Directory....  ...-on experience with SailPoint Identity Security Cloud, Agentic Fabric, Entro, Ping Agent... 
    Microsoft
    Local area
    2 days per week
    3 days per week

    Noblesoft Solutions

    Mc Lean, VA
    16 days ago
  • $117.2k - $176.7k

     ...AI, and you are the future of Salesforce.Job Title: Product Security Engineer, InfrastructureJob Category: Technology / SecurityLocation:...  ...cloud environments (Amazon Web Services, Google Cloud Platform, Microsoft Azure, Alibaba Cloud, or equivalent), with an understanding... 
    Microsoft
    Full time

    Salesforce

    Washington DC
    3 days ago
  • $80.51k - $107.34k

     ...connected ecosystem. We enable secure, high‑performance...  ...Services as a Cloud Security Engineer, helping customers identify and...  ...gaining exposure to AWS, Azure, Microsoft 365, vulnerability scanning platforms...  ...such as Entra ID, Defender, Exchange, Teams, SharePoint,... 
    Microsoft
    Full time

    Lumen

    Bowie, MD
    3 days ago
  •  ...Description:Cyber Detection Engineer Subject Matter Expert (SME)Argo...  ...program focused on defending federal civilian agencies and...  ...incident response, and enterprise security operations.The ideal candidate...  ...Technologies CrowdStrike Falcon Microsoft Defender Palo Alto Cortex XDR... 
    Microsoft
    Local area

    Argo Cyber Systems

    Arlington, VA
    15 days ago
  • $138k - $166k

    As a Sr. Endpoint Security Engineer (Trellix SME), you’ll serve as the technical lead for the organization's endpoint security and data protection...  ...Auditor, Rogue System Detection, Trellix Security for Microsoft Exchange (TSME), Application and Change Control (Solidcore),... 
    Microsoft
    Full time
    Local area

    MetroStar Systems

    Washington DC
    5 days ago
  • $150k - $275k

     ...accomplishing hard things, together.Lead AI Security Engineer (Agentic SOC)Location: McLean/Tysons,...  ...AI capabilities to reimagine how we defend our organization.THE OPPORTUNITYThe AI...  ...APIs/Webhooks (e.g., Splunk, CrowdStrike, Microsoft Sentinel, Palo Alto XSOAR).Experience... 
    Microsoft
    Work experience placement
    Local area
    Flexible hours

    Appian

    McLean, VA
    5 days ago
  •  ...across the globe to create, secure, and run applications that enhance...  ...is looking for a Sr.Security Engineer with experience in building,...  ...and alerting to effectively defend the platform....  ...Computing platform (e.g. Amazon AWS, Microsoft Azure, Google Compute etc.) Good... 
    Microsoft
    Full time
    Local area

    F5 Networks

    Reston, VA
    16 hours ago
  •  ...Kastle's APIs, such as event delivery to security and operations platforms; identity...  ...through SCIM with providers like Okta and Microsoft Entra; and integrations with third-party...  ...platforms. As a Junior Systems Integration Engineer, you will support the head engineer and... 
    Microsoft
    Internship
    Remote work

    Kastle Systems

    Falls Church, VA
    3 days ago
  • $82.6k - $162.8k

     ...confidence, and proactively manage to secure success. Recruiting for this...  ...'ll do As a Managed Services Engineer II on the Cyber Operate...  ...engineering.Experience using Microsoft Sentinel, Splunk, Google...  ...Elastic, CrowdStrike, or Microsoft Defender.Experience creating or... 
    Microsoft
    Local area
    Visa sponsorship

    Deloitte

    McLean, VA
    1 day ago
  • $130k - $190k

     ...Full-Time /On-sitePlanet Technologies, the Nation’s leading Microsoft services provider to the public sector, is looking for a highly...  ...to join our growing team as an Information Systems Security Engineer (ISSE). In this role, you will be supporting impactful projects... 
    Microsoft
    Full time

    Planet Technologies

    Washington DC
    2 days ago
  • $85.19k - $185k

     ...Range: $85,185.00 - $185,000.00 Security Clearance: TS/SCI Level of...  ...cyber operations communities to defend our interests in cyberspace...  ...architecture, reverse engineering, software and hardware development...  ...vendors and technologies including Microsoft, Linux, Cisco, VMWare, NetApp... 
    Microsoft
    Full time
    Work experience placement
    Local area
    Worldwide

    HII Mission Technologies Division

    Springfield, VA
    2 days ago
  • $150.08k - $187.6k

     ...nation’s most mission-critical facilities, secure environments, complex infrastructure,...  ...power and technology solutions through engineering expertise and smart systems integration....  ...such as everRun, VMware ESXi and vSphere.Microsoft Windows Server 2016-2025 Deployment and... 
    Microsoft
    Work at office
    Local area

    M.C. Dean

    Washington DC
    4 days ago
  • $148.5k - $223.9k

     ...you are the future of Salesforce.Job Title: Senior Product Security Engineer, InfrastructureJob Category: Technology / SecurityLocation:...  ...cloud environments (Amazon Web Services, Google Cloud Platform, Microsoft Azure, Alibaba Cloud, or equivalent), with an understanding... 
    Microsoft
    Full time

    Salesforce

    Washington DC
    5 days ago
  • $32 - $35 per hour

     .... The Aerospace Corporation is hiring a Graduate Hardware Security Engineer Intern for the Cyber and Mission Technology Department (CMTD...  ...-on experience with Linux environments Proficiency in Microsoft Office applications (Word, PowerPoint, Excel). Exhibit a... 
    Microsoft
    Hourly pay
    Full time
    Temporary work
    Internship
    Work at office
    Immediate start
    Remote work
    Relocation package
    Flexible hours

    The Aerospace Corporation

    Chantilly, Fairfax County, VA
    3 days ago
  • $99k - $225k

    Data Security EngineerThe Opportunity:Architect, deploy, and configure data security solutions...  ...personnel and internal delivery and engineering teams. Assist in building custom policy...  ...as Forcepoint, Trellix, Symantec, or Microsoft PurviewExperience tuning and... 
    Microsoft
    Full time
    Contract work
    Part time
    Local area
    Remote work

    Booz Allen Hamilton

    Arlington, VA
    4 days ago
  •  ...responsible for translating business, security, risk, and regulatory requirements into...  ...Security Cloud, PingFederate, PingDirectory, Microsoft Entra, Active Directory, and ServiceNow...  ...years of progressive IAM architecture, engineering, or solution design experience in... 
    Microsoft

    Noblesoft Solutions

    Mc Lean, VA
    10 days ago
  • $107.93k - $188k

     ...transform how organizations operate, and securing those environments requires...  ...complex platforms. As a Cloud Security Engineer, you will help assess and enhance security...  ...(AWS), Google Cloud Platform (GCP), and Microsoft Azure environments. This role supports cloud... 
    Microsoft
    Local area

    Deloitte LLP

    Washington DC
    8 days ago
  • $150k - $170k

     ...delivers improved health and national security readiness solutions for federal programs...  ...research and development, systems engineering and integration, and digital transformation...  ...positives/negatives Utilize Microsoft Defender Antivirus (MDAV) and endpoint detection... 
    Microsoft
    Flexible hours

    DLH Corporation

    Bethesda, MD
    2 days ago
  • ## Job Description# Cyber Security EngineerApply**Job#: 3058369****...  ...Description:**Cyber Security Engineer**Location:** Merrifield, Virginia...  ...platforms such as Windows Defender Application Control (WDAC),...  ...endpoint security systems including Microsoft Defender for Endpoint,... 
    Microsoft
    Hourly pay
    Contract work
    Remote work

    Apex Systems

    Fairfax, VA
    1 day ago
  •  ...Consulting at DescriptionProSidian seeks a Mid-Level InfoSec Security Engineer (Focus On Network Security) Consultant focusing on Cyber-...  ...and proficiency with business tools and technology, including Microsoft Office. The ideal candidate is advanced with Excel, Outlook,... 
    Microsoft
    Full time
    For contractors
    Work experience placement
    Internship
    Work at office
    Monday to Friday
    Shift work

    Prosidian Consultng

    Washington DC
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Security Engineer (Microsoft Defender). Be the first to apply!