Job Description – C++ Firewall & Network Security Developer Location: Noida Experience Required: 5–7 Years Job Type: Full-time Department: Network Security & Systems Engineering Company: Maple Cloud Technologies About the Role We are looking for a C++ Firewall & Network Security Developer with deep expertise in network protocol stacks, C++ systems programming, and real-time packet processing. In this role, you will work on the design and development of high-performance firewall components, including packet filtering, DPI, policy enforcement, and network traffic analysis. The ideal candidate has a strong foundation in networking (OSI Model, TCP/IP, UDP, HTTP/S, DNS, SSL/TLS), and has experience implementing and optimizing networked systems with multithreading, sockets, and security protocols. Key Responsibilities · Design and implement modules for a next-generation firewall using C++17/20 with focus on network-layer filtering, connection tracking, and application-level control. · Build high-performance network packet processing pipelines using raw sockets or libraries like libpcap . · Implement Deep Packet Inspection ( DPI ) and application detection using known libraries (e.g., nDPI ) or custom engines. · Develop and maintain components that work with network protocols like TCP, UDP, ICMP, HTTP/S, DNS, FTP, and TLS . · Integrate OpenSSL to support TLS inspection and secure control channels (e.g., HTTPS APIs, secure sync). · Build or interface with rule engines for access control, rate limiting, and traffic shaping. · Support development of alerting systems, log collectors, and network health monitoring tools. · Optimize code for latency and throughput, using concurrency control, SIMD, and lock-free techniques. · Work with multi-interface systems, Linux/Windows networking stacks, and handle routing/firewall table updates (e.g., iptables, pf, iproute2 ). · Collaborate with GUI teams for management interfaces built using QT/QML or WPF, and expose APIs using REST or gRPC . Required Skills & Experience · 6+ years of experience in modern C++ (C++11/14/17/20), OOP, and STL. · Strong foundation in networking protocols and OSI model (L2-L7). · Hands-on experience with TCP/IP socket programming, packet parsing, and flow/session tracking. · In-depth knowledge of TLS/SSL, encryption techniques (RSA, AES), and OpenSSL APIs. · Experience with multithreading, concurrency primitives, and performance optimization. · Familiarity with network protocol analysis tools (e.g., Wireshark, tcpdump) and debugging. · Proficiency in Linux/Unix internals, network configuration, and system diagnostics. Nice to Have (Preferred) · Experience with firewalls, NGFW, intrusion detection, or network sniffers. · Exposure to libpcap, nDPI, Netfilter/iptables, pfctl, or eBPF . · Experience with high availability (HA), VRRP/CARP, or clustered deployments. · Familiarity with Protobuf, gRPC, REST APIs , and secure service design. · Background in security appliances, VPNs, or Windows Credential Providers. · Comfortable with log rotation, SIEM integration, and custom monitoring hooks. Thanks and Regards KM Chandni HR Executive chandani@maplecloudtechnologies.com / hr@maplecloudtechnologies.com 7982255779 Show more Show less

Job Description: Software Engineer (Networking & Security Protocols) Position: Software Engineer (C, C++, C#) Experience: Minimum 5 Years Location: Noida About the Role: We are seeking an experienced Software Engineer with strong proficiency in C, C++, and C#, and substantial expertise in networking and security protocol development, including hands-on experience with physical layer development. The candidate will join our dynamic engineering team to design, develop, and enhance software solutions focused on network security, protocol implementation, and hardware interfacing. Key Responsibilities: · Design, develop, and implement robust software solutions primarily using C, C++, and C#. · Develop and maintain network and security protocol stacks, ensuring compliance with relevant standards and specifications. · Engage actively in the development, testing, and troubleshooting of physical layer (PHY) protocols and hardware integration. · Collaborate with cross-functional teams to define, design, and deploy advanced networking solutions. · Optimize software performance for network throughput, latency, and reliability. · Create comprehensive technical documentation, including design specifications, test plans, and operational manuals. · Participate actively in peer reviews, code reviews, and agile development cycles. Requirements: · Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related field. · Minimum of 5 years hands-on software development experience using C, C++, and C#. · Demonstrated expertise in networking protocols (TCP/IP, UDP, BGP, MPLS, Ethernet) and security protocols (IPSec, TLS, SSL, SSH). · Proven experience in developing, debugging, and optimizing software at the physical (PHY) layer. · Familiarity with hardware interfaces, embedded systems, and real-time operating systems. · Strong understanding of software development lifecycle and best practices. · Excellent debugging, analytical, and problem-solving skills. · Strong written and verbal communication abilities, capable of clearly articulating complex technical concepts. Preferred Qualifications: · Experience with network processors, FPGAs, ASICs, and related hardware. · Knowledge of modern software development tools and CI/CD practices. · Familiarity with cybersecurity standards and best practices. Why Join Us: · Be part of a dynamic team at the forefront of networking and security technologies. · Opportunity to work on cutting-edge technology solutions with significant industry impact. · Competitive compensation package, inclusive work environment, and opportunities for professional growth. Show more Show less