Lead Engineer

Airtel; Pune District; On-site; INR 2,200,000 - 3,400,000; Full time

Job summary

Airtel in Pune, India is seeking an experienced Senior Software Architect to contribute to design and delivery across applications, drive API design and contracts in a growing microservices landscape, and mentor engineers.

You will partner with product managers to translate requirements into scalable designs, evaluate open-source components, and ensure scalability, resilience, observability and security across existing and new capabilities.

Qualifications

• Experience building scalable microservices.
• Strong problem-solving and complexity analysis skills.
• Proficient in Java and Spring Boot with solid OOP & design pattern fundamentals.
• Experience with REST APIs, OpenAPI/Swagger, and API versioning.

Responsibilities

• Contribute to design and delivery across applications.
• Drive API design and contracts (REST, event schemas) across a growing microservices landscape
• Mentor and technically guide a team of engineers; conduct design/code reviews
• Partner with product managers and business analysts to translate requirements into scalable technical designs
• Evaluate and integrate open-source components in line with build vs. buy and "justified access-pattern" principles
• Support scalability and maintainability of existing applications while contributing to new capabilities
• Own non-functional requirements: scalability, resilience, observability, and security

Skills

Java

Spring Boot

OOP & Design Patterns

Microservices

System Design (HLD/LLD)

DDD

SQL (PostgreSQL)

NoSQL

Kafka

REST APIs

OpenAPI/Swagger

Redis

Docker

Kubernetes

CI/CD

Grafana

Prometheus

Tools

PostgreSQL

Kubernetes

Docker

CI/CD

OpenAPI/Swagger

Kafka

Redis

Grafana

Prometheus

Job description

Key Responsibilities

• Contribute to design and delivery across applications.


• Drive API design and contracts (REST, event schemas) across a growing microservices landscape


• Mentor and technically guide a team of engineers; conduct design/code reviews


• Partner with product managers and business analysts to translate requirements into scalable technical designs


• Evaluate and integrate open-source components in line with build vs. buy and \"justified access-pattern\" principles


• Support scalability and maintainability of existing applications while contributing to new capabilities


• Own non-functional requirements: scalability, resilience, observability, and security

Required Technical Skills

• Languages/Frameworks: Java, Spring Boot, strong OOP and design pattern fundamentals


• Architecture: Microservices architecture, System Design (HLD & LLD), Domain-Driven Design


• Data Structures & Algorithms: Strong problem-solving and complexity analysis skills


• Databases: SQL (PostgreSQL preferred) and NoSQL; schema design, indexing, JSONB modelling for flexible/semi-structured data


• Messaging/Streaming: Apache Kafka (producer/consumer patterns, event-driven architecture, schema evolution)


• APIs: REST API design, versioning, contract-first development (OpenAPI/Swagger)


• Caching: Experience with in-memory data stores (ex- Redis/Valkey)


• Cloud & DevOps: Containerization (Docker, Podman etc), Kubernetes, CI/CD pipelines


• Observability: Logging/monitoring stacks (e.g., Grafana, Loki, Prometheus)

Highly Desirable (Added Value)

• Telecom domain exposure: BSS/OSS, TM Forum eTOM/ODA


• Familiarity with AI/agentic system patterns and integrating LLM-based agents into deterministic orchestration flows


• Experience evaluating and productising internal platforms into multi-tenant SaaS offerings


• Understanding of API gateway, service mesh, and event schema governance at scale