Senior Infrastructure Engineer (Mandarin speaking) - TWE43109

twentyAI; London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading international trading firm is seeking a Senior Infrastructure Engineer to design and manage enterprise-level IT infrastructure. Responsibilities include ensuring system security and compliance, managing servers, and overseeing vendor relationships. The ideal candidate will have extensive experience in cloud platforms, a strong knowledge of compliance frameworks, and fluency in Mandarin. This full-time role is critical for maintaining system availability and performance.

Qualifications

• Extensive experience in infrastructure engineering and cloud platforms.
• Strong knowledge of ISO 27001, GDPR, and PCI-DSS.
• Fluency in Mandarin and English required.

Responsibilities

• Design and deliver secure infrastructure solutions for trading operations.
• Manage Linux/Windows servers and virtualisation environments.
• Oversee infrastructure lifecycle planning and vendor selection.

Skills

Vendor management expertise

Experience with AWS

Deep understanding of networking technologies

Strong background in regulatory compliance

Education

Degree in Computer Science or related discipline

Tools

VMware

Docker

Terraform

Ansible

Job description

Overview

A leading international trading firm is seeking a highly skilled Senior Infrastructure Engineer to oversee the design, implementation, and ongoing management of enterprise-level IT infrastructure. The position is critical to ensuring system availability, security, compliance, and scalability across data centre and cloud environments. Fluency in Mandarin is required to interpret and adapt technical and compliance requirements from overseas headquarters into effective local solutions.

Key Responsibilities

• Design and deliver secure, compliant, and reliable infrastructure solutions for trading operations.
• Deploy and maintain networking equipment (switches, firewalls, VPNs), storage solutions, and virtualisation platforms (e.g. VMware).
• Ensure adherence to international and local regulations, including ISO/IEC 27001, GDPR, and PCI-DSS.
• Optimise systems for resilience, performance, and cost-effectiveness.
• Lead infrastructure-related audits and provide documentation to demonstrate compliance.
• Adapt global infrastructure policies and frameworks into practical, locally optimised implementations.

Systems & Operations Management

• Manage Linux/Windows servers, virtualisation environments (VMware/Hyper-V), and container technologies (Docker/Kubernetes).
• Ensure trading platforms and supporting systems maintain high availability, disaster recovery readiness, and robust backup strategies.
• Oversee infrastructure lifecycle planning, vendor selection, asset tracking, and process documentation.
• Coordinate responses to penetration tests, conduct health checks, and monitor vendor service quality.
• Mitigate risks associated with data centre connectivity, failover procedures, and third-party hardware dependencies.

Networking & Security

• Configure and support firewalls, VPNs, load balancers, and DNS infrastructure.
• Implement modern security practices such as IAM, Zero Trust, encryption, and patching strategies.
• Diagnose and resolve complex network performance and latency issues.
• Collaborate with security teams to remediate issues raised during audits and assessments.
• Mentor junior engineers and guide best practices across the team.
• Collaborate with development, security, and operations teams to align infrastructure with business-critical trading requirements.
• Contribute to critical incident response on an on-call rotation.
• Travel to international headquarters and subsidiaries when necessary.
• Act as the key contact for infrastructure audits and deliver compliance training.

Qualifications & Experience

• Extensive experience in infrastructure engineering, cloud platforms, and data centre administration, ideally within high-availability or trading environments.
• Strong knowledge of ISO 27001, GDPR, PCI-DSS, and related compliance frameworks (ISO 27001 Lead Implementer / Lead Auditor preferred).
• Degree in Computer Science, Information Systems, or a related discipline.
• Fluent in Mandarin and English, with proven ability to localise IT requirements for regional operations.

Required Skills

• Vendor management expertise, including RFP processes and service cutovers.
• Experience with AWS, Azure, or GCP.
• Deep understanding of networking technologies (TCP/IP, BGP, VLANs, SD-WAN, CDNs).
• Strong background in regulatory compliance and audit preparation.

Preferred Skills

• Experience with on-premises platforms, disaster recovery, and data centre infrastructure.
• Familiarity with Infrastructure-as-Code tools such as Terraform and Ansible, with an interest in developing further expertise.
• Background in multicultural, cross-border collaboration.
• Knowledge of multi-cloud and hybrid cloud strategies.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology
• Industries: Financial Services, Oil, Gas, and Mining, and Oil and Gas

Note: This description focuses on the Senior Infrastructure Engineer role and its requirements. It does not include extraneous postings or unrelated content.