Manju H B

Software Development Engineer with 2+ years developing 3GPP-compliant SMSC and USSD signaling platforms using SS7, SIGTRAN, SCTP, and LWSG protocols. Proficient in C, C++, Python, and Linux delivering mission-critical telecom solutions for Tier-1 operators including Vodafone, Airtel, MTN, Claro, and Etisalat. Expertise optimizing high-throughput messaging systems processing 10M+ messages daily, implementing Docker containerization reducing deployment time by 60 percent, and maintaining 99.9 percent uptime SLA.

Strong foundation in network protocols, database management, and DevOps practices. Gold Medal recipient with published IEEE research.

Senior Product Development Engineer at Comviva Technologies Limited (2024-12 – Present)

• Architected 3GPP-compliant SMSC and USSD signaling platform using SS7 over SIGTRAN SCTP and TCP-based LWSG protocols serving multiple Tier-1 operators
• Delivered 15+ customer change requests for Vodafone, Airtel, MTN, and Claro improving platform reliability by 30 percent and reducing production incidents by 25 percent
• Led Dockerization initiative for signaling stack reducing deployment time by 60 percent and enabling horizontal scalability
• Resolved critical Level 3 production issues including SCCP XUDT encoding failures and ASN.1 compilation errors achieving 99.9 percent uptime SLA compliance

Product Development Engineer at Comviva Technologies Limited (2023-08 – 2024-12)

• Implemented MARS firewall integration for content filtering and spam detection reducing unwanted traffic by 40 percent
• Optimized Redis-based SMS load balancing architecture successfully processing over 10 million messages per day with sub-second latency
• Developed CDR billing enhancements, multi-tenancy features, and GT routing solutions for operator-specific compliance requirements

Product Development Intern at Comviva Technologies Limited (2023-02 – 2023-07)

• Developed Python and Shell-based automated workflows for log analysis, minimizing manual intervention and accelerating issue resolution
• Designed and implemented customer-specific billing CDR generation, storing configurable rules in MySQL for efficient data access and retrieval

Bachelor of Engineering in Electronics and Communication – Siddaganga Institute of Technology (2019 – 2023)