CLS Group Tech Stack

Global FX settlement infrastructure processing trillions daily

Financial Services London, New York 501–1,000 employees Founded 2002 Privately Held

CLS Group operates the settlement backbone for foreign exchange trading, processing trillions in daily currency flows across the global FX ecosystem. The hiring surge is heavily skewed toward security (8 open roles) and leadership positions (15 VP-level posts), with concurrent investments in cloud-native detection workflows and automated incident response on AWS Lambda and Step Functions — indicating a shift from manual risk oversight toward continuous, automated threat detection and faster incident recovery at scale.

Tech Stack 43 technologies

Core StackAWS Lambda Java Python JavaScript AWS Oracle Spring Okta Ansible Puppet Jenkins Docker Windows Server Linux Suricata Snort AWS Step Functions SIEM DLP DAST Chef DB2 HTTP SSL LDAP JDBC Java Servlet SQL HTML XML+13 more

AdoptingAWS Lambda AWS Step Functions

What CLS Group Is Building

◆Challenges

Minimizing operational errors in risk processes
Third party risk management
Enhancing detection response recovery
Improving testing processes
Identifying gaps in control coverage
Detecting digital threats
Maintaining sla compliance
Risk assessment for high impact projects
Reducing risk of recurrence
Operational and technology resilience

▲Active Projects

Cloud-native detection and response workflows
Horizontal risk reviews
Thematic operational risk reviews
Rollout of new application security tools
Lambda and step functions incident response workflows
Incident response playbooks
Process automation
Security champions program
Automating lmr processes
Machine learning threat detection models

Hiring Activity

Accelerating30 roles · 15 in 30d

Department

Security

Engineering

Finance

Technology

Ops

Risk

Data

Seniority

Senior

Director

Junior

Notable leadership hires: Risk Review Lead, DevSecOps Lead

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About CLS Group

CLS Group provides FX settlement and risk management infrastructure to thousands of counterparties in currency markets. The core product reduces systemic risk through multilateral netting and same-day settlement across major traded currencies. Beyond settlement, CLS operates a market intelligence division (CLSMarketData) built on the largest consolidated source of executed FX transactions available, and develops complementary tools for lifecycle risk management. The company is headquartered in London and New York and operates at the intersection of finance and technology infrastructure.

HeadquartersLondon, New York

Company Size501–1,000 employees

Founded2002

Hiring MarketsUnited Kingdom, United States

Frequently Asked Questions

What is CLS Group's tech stack?

Java, Python, JavaScript across AWS infrastructure (Lambda, Step Functions), Oracle and DB2 databases, security tools (Suricata, Snort, SIEM, DLP), and infrastructure automation (Ansible, Chef, Puppet, Jenkins, Docker).