Infrastructure Security Engineer

Sumsub; London; Remote; GBP 50,000 - 80,000; Full time

Job summary

A leading company in the verification sector is seeking an Infrastructure Security Engineer to enhance their security measures using modern technologies. This role involves designing security solutions, assessing threats, and integrating security practices into development workflows. Enjoy flexible working arrangements while contributing to protecting millions of users worldwide.

Benefits

Flexible working schedule

Additional days off for holidays

Learning opportunities and support for events

Qualifications

• Proven experience in information security with knowledge of cloud infrastructures, particularly AWS.
• Hands-on experience with SIEM systems and vulnerability management tools.
• Proficient in Kubernetes security and automating tasks using Python.

Responsibilities

• Design and implement robust infrastructure security measures.
• Proactively research and integrate emerging security tools.
• Develop and fine-tune SIEM alert configurations for detection accuracy.

Skills

Information Security

Cloud Infrastructures

AWS

SIEM Systems

Vulnerability Management

Terraform

Ansible

Kubernetes Security

DevSecOps Practices

Python Automation

Linux Administration

Education

Relevant Security Certifications

Tools

AWS Security Hub

Terraform

Ansible

Job description

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Infrastructure Security Engineer, London

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Client:

Sumsub

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

5b1ee4e1d0ea

Job Views:

6

Posted:

18.06.2025

Expiry Date:

02.08.2025

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Job Description:

Sumsub is the one verification platform to secure the whole user journey. With Sumsub’s customizable KYC, KYB, transaction monitoring and fraud prevention solutions, you can orchestrate your verification process, welcome more customers worldwide, meet compliance requirements, reduce costs and protect your business.

Sumsub has over 4000 clients across the fintech, crypto, transportation, trading and gaming industries including Duolingo, Bitpanda, Wirex, Avis, Exness, Flippa, italki, Bybit, LBANK, Gett, Kaizen Gaming, and TransferGo.

Our products are recognised by industry leaders like Gartner's Magic Quadrant, Forrester Wave and Frost Radar.

Now we are looking for anInfrastructure Security Engineertoimplement robust infrastructure security measures utilizing modern security solutions.

What You Will Be Doing:

• Design and implement robust infrastructure security measures utilizing modern security solutions such as SIEM platforms, host-based intrusion detection systems (HIDS), endpoint detection and response (EDR), AWS Security Hub, vulnerability scanning tools, and intrusion detection systems (IDS)
• Proactively research, evaluate, and integrate emerging security tools/technologies to strengthen infrastructure defences, ensuring alignment with industry best practices and evolving threat landscapes
• Develop, analyze, and fine-tune SIEM alert configurations to maximize detection accuracy, reduce false positives, and streamline incident response workflows
• Design, implement, and maintain security automation workflows utilizing Ansible for configuration management, Terraform for infrastructure-as-code, and GitLab CI/CD pipelines to enforce consistent security policies
• Implement and maintain Kubernetes (K8s) security protocols
• Execute comprehensive security assessments and audits to identify risks, perform penetration testing, and lead incident response activities including forensic analysis and post-incident reporting
• Continuously monitor security threats across hybrid environments, deploying preventive controls (e.g., WAF, IPS) and mitigation strategies to address vulnerabilities and active attacks
• Partner with DevOps and development teams to embed security controls into CI/CD pipelines, infrastructure design, and application architectures, fostering a "shift-left" security culture
• Oversee security posture monitoring for SaaS ecosystems, ensuring secure API configurations, identity/access governance, and compliance with organizational security standards
• Maintain up-to-date documentation of incident playbooks, and tooling configurations, while staying informed on emerging threats and cybersecurity innovations

About You:

• Proven experience in information security. Knowledge of cloud infrastructures, with a focus on AWS
• In-depth knowledge and hands-on experience with SIEM systems and vulnerability management tools
• Proficiency in using Terraform and Ansible for infrastructure automation
• Experience in Kubernetes security, including the use of tools for monitoring and securing containers
• Knowledge of DevSecOps practices, with a focus on implementing security checks in CI/CD pipelines, and the ability to integrate these practices into existing processes
• Proficiency in automating daily tasks and workflows, including the ability to develop custom scripts and small integrations between services using Python
• Proficiency in Linux operating systems at an administrator level (Windows experience a plus)

Will be a plus:

• Security certifications such as CKS, CKA, OSCP, AWS Security, or equivalent
• Experience in high-load systems and environments with stringent security requirements
• Understanding of cybersecurity frameworks (e.g., ISO 27001, NIST, GDPR, PCI-DSS, SOC 2, CIS Controls)

What We Offer:

• Fully remote and flexible working schedule, with access to a coworking space (in some locations)
• Working with a product that matters. Our technology helps to protect millions of users and lots of online services worldwide
• International project. Our team works from offices in Berlin, Limassol, London, and Miami, our customers are spread from Mexico and the USA to Hong Kong, South Korea, and Singapore
• 1 extra day off to celebrate your birthday
• 7 additional days to enjoy the Christmas & New Year holidays
• 7 days of sick leave (without the need for documentation)
• Regular, fully covered team offsites to connect and collaborate
• Learning opportunities and support to attend industry events with the team

The hiring stages:TA screening -> Hiring Manager Interview -> Final Interview.

Sounds like a great opportunity for your career development? Then go ahead and apply!

We are a global community of innovators, creators, and thinkers, and we believe that diversity fuels our innovation. Sumsub is proud to be an equal opportunity employer, committed to building a diverse and inclusive workforce. We welcome applications from people of all backgrounds, cultures, genders, experiences, abilities and perspectives. Join us in shaping the future inclusively.