Role Description This full-time on-site role is based in Hyderabad and focuses on the design and development of high-performance distributed systems using C++. The Senior C++ Developer – Distributed Systems Engineer will architect, implement, and optimize core components, services, and APIs to support scalable, reliable, and secure platforms.

Day-to-day responsibilities include writing clean and efficient C++ code, performing in-depth debugging and troubleshooting for complex system issues, and collaborating with cross-functional teams to integrate distributed services with existing infrastructure. The role involves analyzing performance bottlenecks, improving system reliability, and ensuring robust operation across different operating systems and environments. The individual will also review code, mentor other developers, contribute to technical design discussions, and support continuous improvements in tools, processes, and development standards.

Qualifications

Job Responsibilities

Design, implement, and maintain highly available, scalable, and fault-tolerant distributed systems for graph data.

Tackle performance and scalability challenges, optimizing data ingestion, indexing, and query pipelines for low-latency and high-throughput requirements. Conduct systematic profiling and tuning.

Build, optimize,



and operate our core vector embedding infrastructure to enable effective nearest neighbor search at scale.

Proactively diagnose, debug, and resolve complex issues across the entire data stack, from performance bottlenecks and data inconsistencies to system failures. Lead root cause analysis for production incidents and implement preventive measures.

Requirements

- Bachelor’s degree in Computer Science or a related field
- 7-8 years of relevant experience

Skills and Knowledge

Deep, hands-on experience with one or more vector databases or similarity search libraries.

Proven experience designing and working with any graph database and query languages like Cypher

Solid understanding of distributed systems concepts: consensus, replication, sharding, and fault tolerance.

Solid programming fundamentals; Expert-level proficiency in modern C++, with deep understanding of language features and object-oriented design.

Understanding of distributed systems principles and the ability to evaluate trade-offs in system design.

Familiar with Kafka, ETCD or similar technologies;

Proactive and collaborative team player with strong communication skills.

Open to adopting AI-assisted engineering practices ("vibe coding") to improve productivity and code quality.

📌 Senior C++ Developer - Distributed Systems Engineer - 7+ Years of exp (Hyderabad)
🏢 Cygnus Professionals
📍 Hyderabad