Senior Backend Engineer (Telcoms Specialist)

Two Six Technologies builds and implements innovative products to tackle complex challenges. They are seeking a Senior Backend Engineer to bridge legacy Java infrastructures with high-performance Golang development, focusing on transforming and optimizing telecommunications systems.

Responsibilities:

• Legacy Transformation: Take ownership of large, complex Java codebases and strategically migrate towards high-performance Golang microservices
• Protocol Development: Design and maintain low-level communication interfaces involving SS7 (MAP) and DIAMETER protocols
• System Architecture: Build and optimize highly available resilient systems capable of handling multiple client connections
• Database Management: Design schemas and optimize queries for both MySQL and PostgreSQL to ensure data integrity and performance. Understand existing data structures and migrate them as appropriate
• Queue Management: Implement and manage robust job queues and asynchronous task frameworks to handle API traffic and background processing

Requirements:

• Expert-level proficiency in both Java and Golang
• Deep, fundamental understanding of Signaling System No. 7 (SS7) and DIAMETER
• Advanced experience with MySQL and PostgreSQL, including performance tuning and distributed database patterns
• Deep understanding of job queues and task management (e.g., RabbitMQ, Kafka, or custom-built Go workers)
• Comfortable with API models and specifying and writing endpoints to be used by adjacent applications
• Ability to travel for extended periods to coordinate with global teams or oversee on-site deployments
• A drive to see tasks through to completion
• Patience and skill to deconstruct complex logic and rebuild it to a superior standard