Senior Detection Engineer

Job Title- Senior Detection Engineer
Location: Bangalore, India
Employment Type: Permanent

About the Role
This role is a technical subject matter expert responsible for assuring the quality of detecting engineering outputs, including setting engineering standards. They review and approve detections, tuning requests, and automation changes for production, mentor engineers, and manage sprints/backlogs. The senior detection engineer does not own the detection factory but is accountable for the technical integrity of detections into production, ensuring all development of code, testing, validation, and documentation is fit for purpose for operational teams.

Key Responsibilities
Leadership Qualities

• Support and mentor peers in detection engineering concepts to build a culture of learning within the team.  
• Take ownership of assigned detection engineering work, demonstrating accountability for technical quality, testing, and documentation.
• Demonstrate critical thinking, structured problem solving, and focus on outcomes.
• Embed a threat led mindset in all detection development activities and challenge if something doesn’t align.
• Maintain a growth mindset which encourages continuous learning and uplift across the Cyber team.

 
DETECTION ENGINEERING PROCESSES & SYSTEMS

• Deliver end-to-end detections through approved CI/CD workflows and detection engineering pipelines.
• Review and technically approve detection rules to ensure documentation, logic, and testing meet defined engineering standards.
• Assess detection backlog priority according to the defined priority framework to ensure all high detection requests are implemented promptly with no false positive impact in the queue.
• Contribute to continuous improvement initiatives including documentation refinement, optimizing current workflows, and aligning to new engineering standards.
• Maintain a tidy code repository to support software engineering best practices using CI/CD pipelines.
• Conduct continuous validation and testing of detections against known malicious behaviours.

 
KEY ACCOUNTABILITIES

• Review and approve all detection, automation, and log changes before production deployment, ensuring quality, safety, and operational alignment.
• Provides technical approval and quality assurance for detections prior to production, with final production readiness owned by the Lead Detection Engineer.
• Refine and optimise detection rules to minimise false positives and collaborate with teams to identify new detection requirements.
• Drive cross‑team collaboration, enabling a One Team culture through open communication, shared problem‑solving, and alignment across Cyber Defense and Digital teams.
• Recommend and prioritise log sources required to support detection coverage and investigative visibility

Skills & Experience

• Proactive and critical thinking to tie detection recommendations back to threat led detection coverage.  
• 5-8 years' experience in cybersecurity, with significant experience in detection engineering and testing validation.
• Proficient in Infrastructure as Code and CI/CD technologies.
• Proficient in Git & GitHub for code and version control management.
• Proficient competency in KQL development to hunt and develop 
• Strong understanding in data analytics and data storage.

If the opportunity matches your skills and if you are interested, Please share your updated CV on sayali.kothmire@nesfircroft.com
With over 90 years' combined experience, NES Fircroft (NES) is proud to be the world's leading engineering staffing provider spanning the Oil & Gas, Power & Renewables, Chemicals, Construction & Infrastructure, Life Sciences, Mining and Manufacturing sectors worldwide. With more than 80 offices in 45 countries, we are able to provide our clients with the engineering and technical expertise they need, wherever and whenever it is needed. We offer contractors far more than a traditional recruitment service, supporting with everything from securing visas and work permits, to providing market-leading benefits packages and accommodation, ensuring they are safely and compliantly able to support our clients.