Senior Technical Lead (Golang)

Location: Bangalore - Indraprastha, India

Thales is a global technology leader trusted by governments, institutions, and enterprises to tackle their most demanding challenges. From quantum applications and artificial intelligence to cybersecurity and 6G innovation, our solutions empower critical decisions rooted in human intelligence. Operating at the forefront of aerospace and space, cybersecurity and digital identity, we’re driven by a mission to build a future we can all trust.

Present in India since 1953, Thales is headquartered in Noida and has other operational offices and sites spread across Delhi, Gurugram, Bengaluru and Mumbai, among others. Over 2200 employees are working with Thales and its joint ventures in India. Since the beginning, Thales has been playing an essential role in India’s growth story by sharing its technologies and expertise in Defence, Aerospace and Cyber & Digital sectors. Thales has two engineering competence centres in India - one in Noida focused on Cyber & Digital business, while the one in Bengaluru focuses on hardware, software and systems engineering capabilities for both the civil and defence sectors, serving global needs. The Group has also established an MRO (Maintenance, Repair & Overhaul) facility in Gurugram to provide comprehensive avionics maintenance and repair services to Indian airlines and support the growth of the local aviation industry.

We are seeking a highly skilled and driven Senior Technical Lead (Golang) who is passionate about building high-performance, cloud-native systems. In this role, you will architect and develop intelligent, scalable, and efficient API security solutions capable of running in diverse environments—cloud, hybrid, or on-premises.

As part of Thales CPL’s API Security team, you will lead the design and development of advanced components that help customers detect and remediate threats and vulnerabilities within their API ecosystems across both north-south and east-west traffic flows.
 

Responsibilities

• Architect, design, and develop highly scalable, performant Go services for API security, traffic analysis, and distributed detection engines.

• Lead the development of high-throughput data-processing pipelines for analyzing API payloads, metadata, and behavioral patterns.

• Design and implement rule engines and filtering frameworks to identify, classify, and mitigate malicious API traffic.

• Drive engineering best practices: code reviews, technical documentation, design proposals, and continuous improvement of software processes.

• Mentor and guide engineers on system design, Go development patterns, performance optimization, and cloud-native practices.

• Debug complex distributed-system issues encountered during development, integration, and customer deployments.

• Collaborate with cross-functional teams (security researchers, product managers, platform engineers) to define requirements and ensure high-quality delivery.

Qualifications

• 7–10 years of hands-on engineering experience spanning distributed systems, performance optimization, and cloud-native architectures.

• 5+ years of hands-on Go development experience, including building high-performance, concurrent, production-grade services.

• Proven experience designing and optimizing distributed systems, microservices, or event-driven architectures.

• Strong understanding of networking concepts and application-layer protocols, including HTTP/2, gRPC, TLS, and API gateway patterns.

• Experience with performance profiling, benchmarking, and tuning Go applications (CPU, memory, concurrency, lock contention).

• Solid foundation in concurrency models (goroutines, channels), multi-core performance, and systems-level architecture.

• Experience building large-scale or latency-sensitive systems (e.g., proxies, load balancers, traffic analyzers, or security platforms).

• Good understanding of API security, threat detection strategies, and secure coding practices.

• Familiarity with Python is a plus

At Thales, we’re committed to fostering a workplace where respect, trust, collaboration, and passion drive everything we do. Here, you’ll feel empowered to bring your best self, thrive in a supportive culture, and love the work you do. Join us, and be part of a team reimagining technology to create solutions that truly make a difference – for a safer, greener, and more inclusive world.