Role Details

Job Title:Senior Engineer, MDR

Location:Remote, USA

Reports to:Director of Engineering

Employment Type:Full time

Job Req ID:2026

Req Begin Date: 8/10/2026

About Vector3
Vector3, Inc., is an incident response firmsupportingTMHCC Cyber and Professional Lines Group (CPLG).Vector3 specializes in responding toBusiness Email Compromise (BEC)andRansomwareincidents, helping insured organizations investigate, contain, and recover from cyber related incidents. Building on our success in incident response, we are launching aManaged Detection and Response (MDR)service designed to protect our DFIR clients from future incidents. The MDR program will deliver proactive monitoring, detection, and prevention solutions — powered by tools likeSophos EDR/NDR,Microsoft 365, andGoogle Workspace.

Job Summary

Join us in shaping the future of TMHCC-CPLG as a key contributor in our Managed Detection and Response (MDR) team, Vector3. You will leverage your engineering expertise to support managed detection and response workflows for MDR customers. You will work closely with your team through intricate engineering initiatives, enabling the MDR team to deliver more efficient and scalable detection and response capabilities.

Alongside your technical abilities, you effectively balance multiple priorities. You collaborate closely with your peers to enhance the team’s overall expertise and performance, ensuring the practices’ swift and effective response to cyber incidents.

Key Responsibilities

Relying on extensive security knowledge and advanced technical expertise, this role is accountable for the following responsibilities

Relying on advanced knowledge and strong leadership skills, this role is accountable for the following responsibilities:

Security Engineering and Automation:
- Design, build, and maintain scalable security applications, integrations, and automation frameworks that enhance Managed Detection and Response (MDR) services and improve operational efficiency.
- Lead complex engineering initiatives from design through deployment, delivering innovative solutions to address evolving security threats and operational challenges.
- Identify repetitive processes, operational bottlenecks, and manual tasks across security operations, then develop automation to reduce toil, increase consistency, and improve response times.
- Develop and maintain scripts, APIs, and tooling using Python, PowerShell, Bash, Go, and related technologies to streamline security operations and infrastructure management.
- Engineer and deploy software, security tools, and automation solutions across diverse enterprise environments, ensuring reliability, scalability, and maintainability.
Teamwork and Client Engagement:
- Foster a culture of innovation, continuous learning, and skill development within the engineering team.
- Support the maintenance of operating procedures and best practices for the engineering team.
- Maintain positive, professional insured/carrier relationships.
- Communicate complex engineering concepts internally and externally.
Technical Experience:
- Stay informed about emerging engineering technologies and industry best practices.
- Provide expert technical guidance on engineering methodologies, automation techniques and software development.
- Occasionally, support complex digital forensic investigations, including analysis of system logs, network traffic, and endpoint data.

Competencies

Planning

Contribute to the development of both short-term and long-term plans for designated area of the organization.

Technical Excellence

Experience architecting performant asynchronous microservices with robust testing and observability built-in.
Write, or is a major contributor to, technical reports and documentation.
Peer review complex code to organizational architectural standards.

Cost Management

Develop innovative ways to improve financials.

Business Controls and Policies

Comply with all corporate policies and procedures.

Education

Minimum 4 Year's bachelor's degree in cyber security, Computer Science, information Technology related degree.

Certifications, Licenses, and Designations

Preferred advanced degrees or certifications (CISSP, CISM, GCFE, GCFA, GREM, GBFA, GCIH, CFCE, CCE) are a plus

Experience

4+ years former professional experience in security engineering teams, developing security automation and/or

Senior Engineer, MDR at Tokio Marine HCC