Fintech Network Engineer — PCI-DSS & High Availability

Trendyol Group; Fatih; Hybrid; TRY 300,000 - 540,000; Full time

Benefits offered by this job

Hybrid work model

FlexBenefits budget

Annual training budget

Global mentoring program

Job summary

Trendyol is seeking a Network Engineer to strengthen our fintech infrastructure and ensure network and security architecture runs with maximum uptime and high performance.

You will deploy and manage the company’s network, firewall, and load balancer stack, maintain PCI-DSS compliant environments, and design HA architectures while rapidly addressing incidents and optimizing traffic. Join our diverse team across offices and explore growth opportunities.

Qualifications

• Strong theoretical and practical foundation in switching, routing, TCP/IP.
• Experience with enterprise-grade firewalls and security policy design.
• Experience with L4/L7 load balancing.
• Fintech, banking, or high-traffic environments are a plus.
• Proven ability to diagnose and resolve complex network issues efficiently.

Responsibilities

• Deploy, configure, and manage network, firewall, and load balancer infrastructure end-to-end.
• Maintain 24/7 high availability and secure fintech environment (PCI-DSS compliant).
• Optimize application traffic and design redundant, HA architectures.
• Respond to incidents, perform RCA, and harden infrastructure against threats.

Skills

Switching

Routing

TCP/IP

VPNs

VLANs

BGP

OSP F

Security policies

L4/L7 load balancing

Education

Bachelor's degree in Computer Science / EE / related field

Tools

Cisco IOS

Juniper Junos

F5 BIG-IP

Fortinet / Palo Alto

Job description

Trendyol is seeking a Network Engineer to strengthen our fintech infrastructure and ensure network and security architecture runs with maximum uptime and high performance.

You will deploy and manage the company’s network, firewall, and load balancer stack, maintain PCI-DSS compliant environments, and design HA architectures while rapidly addressing incidents and optimizing traffic. Join our diverse team across offices and explore growth opportunities.