Technical Lead

Hungary
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Job Description

Technical Lead

Budapest, Budapest

Job Summary

We are seeking an experienced Software Engineer with strong expertise in Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) development. The ideal candidate will have a solid background in network security products, Linux-based software development, and backend system programming using C, C++, Perl, and gRPC technologies.

The candidate will be responsible for designing, developing, enhancing, and maintaining security and networking features across Cisco security platforms, with a focus on scalability, performance, automation, and customer-driven requirements.

Key Responsibilities

Design, develop, and maintain software components for Cisco FMC and FTD platforms.Develop networking and security features using C/C++ on Linux environments.Implement and enhance management-plane and control-plane functionalities within FMC/FTD.Design and develop gRPC-based services and APIs for scalable communication between components.Develop automation and scripting solutions using Perl and Linux shell scripting.Troubleshoot and resolve complex software defects across security, networking, and platform layers.Analyze packet flows, control-plane interactions, and performance bottlenecks.Collaborate with architecture, QA, DevOps, and customer support teams for feature delivery and issue resolution.Participate in code reviews, design discussions, and architecture planning.Work closely with cross-functional teams to integrate security and networking capabilities.Contribute to CI/CD, build automation, and deployment processes.

Skill Requirements

Required Technical Skills

Core Technologies

  • Strong programming experience in:
    • C
    • C++
    • Perl
  • Strong Linux system programming and debugging experience.
  • Experience with:
    • gRPC
    • Protocol Buffers (Protobuf)
    • REST APIs

Cisco Security Expertise

  • Hands-on experience with:
    • Cisco Firepower Management Center (FMC)
    • Cisco Firepower Threat Defense (FTD)
    • Security policy management
    • Device management workflows
    • Access Control Policies (ACP)
    • NAT and VPN configurations

Networking Fundamentals

Strong understanding of:

  • TCP/IP
  • IPv4/IPv6
  • Routing Protocols (OSPF, BGP, RIP)
  • Switching Technologies (VLAN, STP, LACP)
  • NAT/PAT
  • ACLs
  • DNS, DHCP
  • IPSEC VPN
  • SSL/TLS
  • Network Security Concepts

Linux & Debugging

  • Linux internals and system programming
  • Multi-threaded application development
  • Memory management
  • IPC mechanisms
  • Socket programming
  • Core dump analysis
  • GDB debugging
  • Performance profiling

Development Tools

Experience with:

  • Git
  • Jenkins
  • CI/CD pipelines
  • Docker/Containers
  • Jira
  • Code review tools

Other Requirements
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 230,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2026 totaled $14.8 billion.