Senior Detection and Response Engineer Job at Activision (Barcelona)

Senior Threat Detection Engineer

We’re expanding our Threat Detection Engineering team at Atlassian and looking f...

Location

United States , San Francisco

Salary:

146300.00 - 235000.00 USD / Year

Atlassian

Expiration Date

Until further notice

Requirements

Bachelor's degree in Computer Science, Information Security, or a related field
Minimum 3 years experience in Detection Engineering roles
Experience building advanced data analytics and ML based detection models to identify complex threats
Experience building effective detection capabilities to modern cloud environments
Experience using common programming languages to build automation
Experience identifying threats through proactive threat hunting
Experience using security detection technologies and systems, including firewalls, intrusion detection systems, EDR, and authentication systems
Experience successfully delivering complex projects
Strong analytical skills and the ability to effectively identify and resolve problems

Job Responsibility

Develop advanced threat detection mechanisms using complex data analytics and machine learning models that can effectively identify and raise alerts for any adversarial or high-risk behaviors within the Atlassian’s systems
Continuous improvement and fine-tuning of detection systems to effectively adapt to new and emerging cyber threats
Monitor and enhance critical detection systems to ensure their reliability and effectiveness in delivering robust detection capabilities
Deploy new detection technologies to continuously uplift and improve our detection capabilities
Collaborate with partner teams such as Incident Response and Threat Intelligence is to establish and maintain meaningful security alerts
Work closely with these teams to ensure security alerts are relevant, actionable, and aligned with the overall security strategy
Collaborate closely with Product Engineering, Data Platform, and Security Engineering teams to advance our detection coverage and tooling in our production cloud environments
Automate complex security operational tasks, aiming to streamline and optimize routine security activities
Develop tools, systems, and programs to enhance and fortify Atlassian's overall security posture
Remain informed about the latest security trends, emerging threats, and evolving technologies to ensure that Atlassian is well-prepared to adapt to new security challenges

What we offer

health and wellbeing resources
paid volunteer days

Fulltime

Senior Logging & Detection Engineer

We are currently seeking a Senior Logging & Detection Engineer to lead the techn...

Location

Canada , Vancouver; Calgary; Toronto

Salary:

146200.00 - 197800.00 CAD / Year

Clio

Expiration Date

Until further notice

Requirements

Senior-level expertise building and scaling enterprise-grade detection capabilities and security monitoring systems
Expert-level query language proficiency in at least two of the following: Elasticsearch/Lucene, SQL, KQL (Kusto), or SPL (Splunk), demonstrating advanced optimization techniques
Extensive Detection Engineering experience owning the full lifecycle of rules, alerts, and automated response workflows within a SIEM/SOAR environment
Advanced log analysis skills across diverse, large-scale data sources, including multi-cloud logs (AWS, Azure, GCP), network flows, and advanced security tool outputs
Deep dashboard and visualization expertise with tools like Kibana, Grafana, or Tableau, specifically for security metrics and executive reporting
Proven expertise in leading threat hunting efforts using log data to proactively identify and track sophisticated threats and anomalous behavior across the environment
Senior-level scripting and automation abilities (Python/Go/PowerShell), used to build custom tools, manage APIs, and drive detection automation at scale
Architectural experience integrating and optimizing SIEM platforms, SOAR tools, and security orchestration systems
Expert performance optimization skills covering query tuning, index design, data partitioning, and overall resource-efficient analytics on big data
Significant incident response experience providing expert-level technical analysis and forensic support during major security incidents

Job Responsibility

Lead the design and implementation of sophisticated, production-ready detection rules and queries across the ELK stack, security data lakes, and multi-cloud logging platforms
Architect and optimize complex search queries, aggregations, and analytics dashboards for high-velocity security monitoring, focusing on performance and cost efficiency
Design and build automated detection and response workflows (SOAR), ensuring seamless and reliable integration with critical incident response systems
Serve as the primary liaison with the threat intelligence team, developing and owning the framework to translate intelligence into scalable, actionable detection capabilities (e.g., MITRE ATT&CK coverage)
Establish and maintain a robust detection rule library, query templates, and lead the creation of security analytics playbooks for the wider team
Drive performance optimization and resource utilization strategies across petabyte-scale log datasets, including index design and data tiering
Develop and standardize custom visualizations, dashboards, and executive reporting capabilities for security stakeholders
Lead complex threat hunting operations, mentor junior team members on investigative techniques, and proactively refine detection logic to achieve near-zero false positive rates
Collaborate closely with the platform team to define the logging architecture roadmap based on future detection requirements and security observability goals
Proactively research emerging threats and attack patterns, translating novel techniques into strategic, forward-looking detection logic and advising security leadership

What we offer

Top-tier health benefits, dental, and vision insurance
Hybrid work environment
Flexible time off policy, with an encouraged 20 days off per year
$2000 annual counseling benefit
RRSP matching and RESP contribution
Clioversary recognition program with special acknowledgement at 3, 5, 7, and 10 years

Fulltime

Senior Detection Engineer

This is a detection engineering role that leverages knowledge of monitoring, ana...

Location

Singapore , Singapore

Salary:

Not provided

Marriott Bonvoy

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Sciences or related field or equivalent experience/certification
3+ years of collective experience in Splunk SIEM (Splunk Enterprise Security) threat detection use case development or UEBA (Exabeam) use case development for insider threat use case development
5+ years of experience in security functions such as SOC, CIRT, security engineering, risk management, vulnerability management or technical infrastructure operations, administration, or systems engineering
scripting or programming language, including Python
Current information security certification such as Certified Information Security Manager (CISM), Certified Information Systems Security Professional (CISSP) preferred
offensive and defensive security certifications such as CEH, IGAC Cyber Defense, OSCP or other related certifications preferred
Splunk Certification, including Splunk Enterprise Security Certified Admin preferred
use case development experience on the Exabeam platform preferred
working knowledge of the NIST Cyber Security Framework and ISO/IEC 27001:2022 preferred
working knowledge of the MITRE ATT&CK Framework preferred

Job Responsibility

Lead collaboration sessions within the cyber security tower and other business units to devise security monitoring use cases
engage and collaborate with other security engineers and architects as needed to keep pace with the evolution of corporate infrastructure and applications and share that knowledge with peers as appropriate
document prospective security monitoring use cases with MITRE ATT&ACK mappings using standard templates and methodologies
inform and consult other cyber ops teams of required data onboarding and integrations for use case development
develop analytics, correlation searches, dashboards, reports and alerts within the SIEM and UEBA platforms
solicit feedback for pre-production security monitoring content through peer review process and user acceptance testing for tuning
document developed security monitoring content in a documentation registry using department standard templates and methodologies
manage field mapping and transmission of security monitoring alerts to the security incident response platform for SOC analyst consumption as outlined in process documentation
provide governance support for the content development function entailing content development standards compliance, change management approvals for SIEM or UEBA content, and lifecycle management of developed security monitoring content
service operational requests in queue such as analytics content performance tuning, filtering, search refinement, parsing issues

Fulltime

Senior Distributed Systems Engineer - Platform Engineering

For our Platform Engineering team, we are looking for programmers with strong in...

Location

Poland

Salary:

Not provided

RTB House

Expiration Date

Until further notice

Requirements

Excellent understanding of how complex IT systems work - from the hardware level, through software, to algorithms
Ability to proactively define requirements, ask appropriate questions and draw conclusions that will combine technical constraints and business needs
Ability to lead the design and implementation of a solution
Experience in leading project teams
Willingness to be involved in topics that go beyond programming and design, such as responsibility for technical areas or communication with other teams
Proactive attitude, independence in taking action
Extensive experience in programming and readiness to implement key system elements as well as involvement in code reviews
Good knowledge of methods of creating concurrent programs and distributed systems
Ability to critically analyze created solutions in terms of performance (from estimating the theoretical performance of designed systems to detecting and removing actual performance problems in production)
C1 level in English and Polish

Job Responsibility

Plan and then hands-on lead further development within a given technical area like deployment, monitoring, databases or load balancing, in the context of existing infrastructure within RTB House
Coordinate the work of a project team of 3-4 people, also making arrangements with other teams and units within RTB House
Ensure the reliability and scalability of the solutions built

What we offer

Attractive compensation
Work in a team of enthusiasts who are willing to share their knowledge and experience
Flexible cooperation conditions - we do not have core hours, we do not have holiday limits
Access to the latest technologies and the possibility of real use of them in a large-scale and highly dynamic project

Senior Engineering Manager - Risk

Our mission is to build the intelligent, automated systems and operational tools...

Location

United States; Canada , San Francisco; New York; Portland

Salary:

239000.00 - 298800.00 USD / Year

Mercury

Expiration Date

Until further notice

Requirements

9+ years of software development experience
3–5+ years of engineering management in a high-scale tech environment
AI/ML expertise—you’ve built and launched applied AI products (from LLMs to traditional ML models), shipping them from 0→1 and scaling 1→10 in production environments
Proven success building large-scale backend distributed systems, ideally involving integrations and decision automation
Experience with or curiosity about KYC, AML, risk, or compliance systems in financial services or fintech
A track record of raising the bar for quality and reliability, balancing shipping speed with technical excellence
Strong communication and leadership skills—you can inspire engineers, partner across functions, and adapt your management style to the moment
The ability to hire, retain, and develop exceptional technical talent
A pragmatic builder’s mindset: you believe beautiful systems are those that work, adapt, and last

Job Responsibility

Lead teams (4–8 engineers each) responsible for account onboarding, KYC/KYB, AML, and fraud detection decisioning and workflows, and operational tooling
Apply AI/ML—from traditional models to large language models—to unlock faster, real-time bank account application approvals. This work sits on the critical business path, directly driving efficiency and revenue growth
Partner with Product, Risk, and Data teams to design and deliver scalable systems that balance user experience with compliance rigor
Shape the next generation of our KYC and risk platforms—reliable, resilient, and easy to extend as regulations and business needs evolve
Create a strong culture of operational excellence, with measurable improvements to uptime, accuracy, and system quality
Build, mentor, and grow engineering talent
help managers and senior engineers level up technically and organizationally
Drive clarity amid complexity: translating between regulatory nuance and technical execution
Foster collaboration across teams to align on priorities, simplify interfaces, and make the whole system more maintainable and elegant

What we offer

base salary
equity
benefits

Fulltime

Senior Security Incident Response Analyst

We are looking for an Incident Responder with robust technical skills, expertise...

Location

Poland , Gdańsk

Salary:

256000.00 - 342000.00 PLN / Year

Atlassian

Expiration Date

Until further notice

Requirements

5+ years in security domains like Operations, Incident Response, Detection Engineering, Threat Research, or Engineering, with relevant incident response and investigation experience
Proficiency in modern programming languages (Python, Ruby, Java, Go) or scripting for security tasks
Experience with AWS, GCP, or similar cloud platforms
Experience in building and delivering projects from start to finish
Expertise in areas such as malware analysis, forensics, threat hunting, network analysis, or cloud endpoint analysis
Contributions to the security community or open source projects
Capable of explaining technical issues to non-technical stakeholders

Job Responsibility

Security Incident Management: Act as an escalation point, collaborate with partners, communicate updates, and work towards resolution. Participate in on-call roster and conduct post-incident reviews to analyze causes and recommend improvements
Investigation and Analysis: Investigate log data from multiple sources for signs of compromise, conduct threat hunts, research threat actor tools and tactics, and lead evidence collection and forensic analysis
Technical Solutions and Automation: Provide technical solutions to reduce incidents, build and maintain tools for automation, and develop security incident response guides and procedures
Advocacy and Training: Advocate for security best practices and secure coding standards, and conduct tabletop exercises and simulations to test and improve incident response readiness

What we offer

health and wellbeing resources
paid volunteer days

Fulltime

Senior Systems Engineer

AnaVation is seeking a highly skilled Senior Systems Engineer to join our Cross ...

Location

United States , Vienna

Salary:

Not provided

AnaVation

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Engineering, Computer Science, or related technical discipline
7–9 years of documented experience in Information Systems Engineering
Hardware and network designs for large-scale enterprise applications
Implementing and maintaining security best practices, creating and maintaining documentation for architecture, configuration and processes
Experience establishing and maintaining monitoring and alerting systems for cloud and on premise resources
Optimizing on premise and cloud infrastructure for cost efficiency and performance
Troubleshooting and resolving issues related to performance and availability
Documented and demonstrated experience with troubleshooting and problem solving
Experience with software development
Experience scripting and programming for automation

Job Responsibility

Architect, develop and support a for a highly available resource for mission-critical programs composed of numerous AWS services and on-premises servers across multiple locations
Automation and Cloud Integration: Automate the creation and management of AWS resources using AWS CloudFormation, AWS Lambda, GitLab, BASH, and Python scripting
Infrastructure Lifecycle Automation: Design and implement an automated, hands-free monthly server rebuild and switchover process leveraging CloudFormation, Lambda, and EventBridge
Linux Automation and Monitoring: Develop and maintain a comprehensive system of scripts and processes to automate configuration, maintenance, and monitoring of UNIX systems
Maintain network hardware and server infrastructure, including analysis, configuration, installation, and testing of new hardware and software
Support daily network operations, evaluating utilization, monitoring response times, and detecting and resolving operational problems
Troubleshoot issues at both the physical and logical levels of the network, using diagnostic tools and communication protocol analysis
Participate in planning, design, technical reviews, and implementation of network and infrastructure projects supporting voice and data communications
Maintain and enhance network infrastructure standards, including TCP/IP communication protocols, and ensure adherence to industry and security best practices
Exhibit proficiency with virtualization technologies (VMware, AWS, etc.) and network administration, ensuring high system availability and scalability

What we offer

Generous cost sharing for medical insurance for the employee and dependents
100% company paid dental insurance for employees and dependents
100% company paid long-term and short term disability insurance
100% company paid vision insurance for employees and dependents
401k plan with generous match and 100% immediate vesting
Competitive Pay
Generous paid leave and holiday package
Tuition and training reimbursement
Life and AD&D Insurance

Fulltime

Senior Security Engineer

The Senior Security Engineer will provide hands-on technical leadership within t...

Location

United Kingdom , Leeds; Thame

Salary:

65000.00 - 75000.00 GBP / Year

PEXA UK

Expiration Date

Until further notice

Requirements

Proactive, can-do attitude to get things done quickly and efficiently
Strong collaboration and communication skills
Willingness to contribute ideas to the security programme
Demonstratable first-hand experience in achieving organisational adherence to security best practices
Experience in the practical protection of a remote working laptop estate and SaaS cloud solutions
Experience in identity and access management solutions
Experience in device business automation and updates
Experience in the security aspects of cloud web application hosting and defence measures like WAF

Job Responsibility

Maintenance and Operational Security: Ensure all security solutions remain operationally effective
Ensure technical teams timely patch applications, systems, software, and hardware
Maintain and audit secure configurations for devices, applications, and cloud environments
Access Control and Identity Management: Conduct regular user and privileged account reviews
Manage and monitor Privileged Identity Management (PIM) profiles and elevated access accounts
Coordinate with IT and HR for onboarding/offboarding
Tool, Infrastructure, and Encryption Management: Maintain and optimise security infrastructure and tools
Oversee encryption key and certificate management
Work with vendors and internal teams to ensure tools remain current
VPN, Network & Firewall Security: Design, configure, and maintain secure VPN and Zero-Trust network solutions

What we offer

Your growth: We encourage you to hit your personal and professional learning and development goals with our tailored programs and tools
Your wellness: We care about your holistic wellbeing
Your work/life blend: We want to help you create your ideal work/life blend

Fulltime

Senior Detection and Response Engineer

Activision

Location:
Spain , Barcelona

Category:
IT - Administration

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
March 25, 2026

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