About CLS:

CLS is the trusted party at the centre of the global FX ecosystem. Utilized by thousands of counterparties, CLS makes FX safer, smoother and more cost effective. Trillions of dollars’ worth of currency flows through our systems each day.

Created by the market for the market, our unrivalled global settlement infrastructure reduces systemic risk and provides standardization for participants in many of the world’s most actively traded currencies. We deliver huge efficiencies and savings for our clients: in fact, our approach to multilateral netting shrinks funding requirements by over 96% on average, so clients can put their capital and resources to better use.

CLS products are designed to enable clients to manage risk most effectively across the full FX lifecycle – whether through more efficient processing tools or market intelligence derived from the largest single source of FX executed data available to the market.

Our ambition to make a positive difference starts with our people. Our values underpin everything that we do at CLS and define our working environment:

Pivotal purpose
Trusted guardian
Targeted innovation
Facilitate connections
Delivering excellence
Inclusive culture

Job information:

Functional title – Cyber & Network Security Engineer
Department - CISO
Corporate level – Assistant Vice President
Report to – Cyber & Network Security Engineering Lead
Location – London, onsite 2 days per week

What you will be doing:

The Assistant Vice President (AVP), Security Engineering is a junior technical engineering role responsible for assisting with the deployment, automation, and operational support of enterprise security platforms and controls. Ideally the candidate will have some AWS cloud infrastructure security tooling integration, security automation experience.

This role requires a hands-on engineer who can build and deploy AWS-based environments to evaluate, test, and operationalize new security technologies and engineer off the shelf security tools. They need to have an openness and desire to learn and get stuck in and help solve problems. They will be supported and mentored by senior engineers in the team.

Key Responsibilities:

Security Engineering & Tool Deployment

Assist with configuring and maintaining enterprise security platforms and services.
Be willing to assist and learn the following products with the mentoring of more senior security engineers (experience with any of the below is desirable but not essential)

Splunk Enterprise / Splunk Cloud
Forcepoint Web Security
Forcepoint Email Security & DLP
Zscaler DLP and Internet Access
Microsoft Purview DLP
Qualys VMDR
Additional threat detection, monitoring, and data protection technologies.

Troubleshoot platform, infrastructure, and integration issues across security ecosystems.

AWS Infrastructure Engineering

Help build and manage AWS environments used for proof-of-concepts, product evaluation, security testing, and production deployments.
Develop repeatable Infrastructure-as-Code (IaC) capabilities for rapid deployment of security tooling.
Engineer secure cloud architectures incorporating:

EC2
VPCs
Security Groups
IAM
Route53
S3
Lambda
CloudWatch
GuardDuty
AWS Organizations

Support secure cloud adoption initiatives and platform modernization programs.

Security Automation & Development

Develop automation solutions using Python to reduce operational overhead and improve security effectiveness.
Create and maintain scripts, APIs, orchestration workflows, and automation frameworks for:

Security tool deployment
Configuration management
Monitoring and alerting
Compliance validation
Asset discovery
Data collection and reporting

Integrate security tooling with enterprise workflows and operational platforms.

Security Monitoring & Detection Engineering

Design and implement security monitoring use cases.
On board new log sources.
Develop Splunk searches, correlation rules, dashboards, and reporting capabilities.
Improve threat detection coverage through security telemetry integration and log onboarding.
Partner with Cyber Defense teams to improve detection engineering and incident response capabilities.

Data Protection Engineering

Deploy and manage enterprise Data Loss Prevention (DLP) solutions.
Configure and optimize:

Forcepoint DLP
Microsoft Purview DLP
Zscaler DLP

Work with data owners and security architects to implement controls protecting sensitive information.

Technical Leadership

Collaborate closely senior engineers and architects to deliver secure-by-design solutions.
Support security technology roadmaps and strategic initiatives.

Experience

2-3 years of experience in Security Engineering, Cloud Security Engineering, or Infrastructure Security.
Experience building and deploying AWS environments from the ground up.
Hands-on experience onboarding, configuring, and operating enterprise security platforms.
Strong experience automating security operations using Python.
Experience supporting security technology evaluations, proof-of-concepts, and production rollouts.

Technical Skills:

Cloud & Infrastructure

AWS (preferred)
Infrastructure-as-Code concepts
Linux and Windows administration
Networking fundamentals (TCP/IP, DNS, HTTP/S, Routing, Proxies)

Desirable Security Technologies (all not essential)

Splunk
Forcepoint Web Security
Forcepoint DLP
Forcepoint Email Security
Zscaler DLP
Microsoft Purview DLP
SIEM, Endpoint Detection & Response (EDR), DLP, and Vulnerability Management technologies
Ansible
SCCM

Development & Automation

SPL
Python
REST APIs
Automation frameworks
Scripting and orchestration
CI/CD concepts

Desirable Qualifications

AWS Solutions Architect, Security Specialty, or equivalent certification.
Splunk Power User, Admin, or Architect certification.
CrowdStrike Certified Falcon Administrator.
Experience with Terraform or CloudFormation.

Key Competencies

Troubleshooting and problem-solving skills.
Strong engineering mindset with a passion for automation.
Strong desire to learn new technologies.

Success Measures

Engineering and onboarding of security technologies.
Increased automation and reduction in manual operational effort.
Improved security monitoring and detection capabilities.
Effective implementation of DLP and data protection controls.
Stable, scalable, and secure AWS-hosted security infrastructure.
Successful delivery of security engineering initiatives aligned with business and security objectives.

What we’re looking for:

2-3 years’ experience in security engineering / cyber engineering / engineering
Engineering mindset: able to go deep on architecture, automation, telemetry, and operational resilience.
Data-driven and outcome-focused, with a bias toward measurable security improvements.
Comfortable operating in fast-paced, evolving environments.
Willingness to learn and tackle new challenges.

Our commitment to employees:

At CLS, we celebrate inclusion and consider this to be one of our strongest assets. We are committed to fostering an environment in which everyone feels comfortable to be who they are, and inclusion is valued. All employees have access to our inclusive benefits, including:

Holiday - UK/Asia: 25 holiday days and 3 ‘life days’ (in addition to bank holidays). US: 23 holiday days.
2 paid volunteer days so that you can actively support causes within your community that are important to you.
Generous parental leave policies to ensure you can enjoy valuable time with your family.
Parental transition coaching programmes and support services.
Wellbeing and mental health support resources to ensure you are looking after yourself, and able to support others.
Employee Networks (including our Women’s Forum, Black Employee Network and Pride Network) in support of our organisational commitment to embrace and always be learning more about inclusivity.
Hybrid working to promote a healthy work/life balance, enabling employees to work collaboratively in the office when needed and work from home when they don’t.
Active support of flexible working for all employees where possible.
Monthly ‘Heads Down Days’ with no meetings across the whole company.
Generous non-contributory pension provision for UK/Asia employees, and 401K match from CLS for US employees.
Private medical insurance and dental coverage.
Social events that give you opportunities to meet new people and broaden your network across the organisation.
Annual flu vaccinations.
Discounts and savings and cashback across a wide range of categories including health and retail for UK employees.
Discounted Gym membership – Complete Body Gym Discount/Sweat equity program for US employees.
All employees have access to Discover – our comprehensive learning platform with 1000+ courses from LinkedIn Learning.
Access to frequent development sessions on a number of topics to help you be successful and develop your career at CLS.

CLS Group

Assistant Vice President - Cyber & Network Security Engineer

About the Job

Requirements

Responsibilities

Desired Qualifications

About the Company

CLS Group

Recently Posted Jobs