: Senior Lead Developer (Java / Microservices)

About The Role

We are looking for an experienced Senior Lead Developer to design, build, and scale robust backend systems. The ideal candidate has solid hands-on expertise in Java, Microservices architecture, AWS cloud services, and a proven ability to solve complex engineering problems. You will play a key role in both High-Level System Design (HLD) and Low-Level System Design (LLD), driving technical decisions that impact scalability, reliability, and performance.

Key Responsibilities

- Design, develop, and maintain scalable backend services and microservices using Java (Spring Boot or similar frameworks).
- Own High-Level System Design (HLD) ? define system architecture, service boundaries, data flow, and integration patterns for new and existing systems.
- Own Low-Level System Design (LLD) ? translate architecture into detailed class diagrams, database schemas, API contracts, and design patterns.
- Architect and deploy cloud-native applications on AWS, leveraging services such as ECS (container orchestration) and S3 (object storage).
- Design and implement RESTful APIs and event-driven microservices with a focus on scalability, fault tolerance, and maintainability.
- Apply strong problem-solving skills to debug complex production issues, optimize performance, and improve system reliability.
- Collaborate with product managers, architects, and cross-functional engineering teams to translate business requirements into technical solutions.
- Write clean, well-tested, maintainable code and participate in code reviews.




- Participate in capacity planning, monitoring, and incident response for production systems.

Required Skills & Experience

- 7+ years of qualified backend development experience
- Strong proficiency in Java and related frameworks (Spring / Spring Boot).
- Solid experience building and maintaining Microservices architectures.
- Hands-on experience with AWS cloud services, particularly:
- Amazon S3 (storage, lifecycle policies, access management)
- Amazon ECS (container orchestration, task/service definitions, scaling)

- Demonstrated ability in High-Level System Design (HLD) ? architecture, scalability, distributed systems concepts (load balancing, caching, message queues, etc.).
- Demonstrated ability in Low-Level System Design (LLD) ? OOP design principles, design patterns, database/schema design, API design.
- Strong problem-solving and analytical skills, with the ability to debug and optimize complex systems.
- Solid understanding of RESTful API design and integration patterns.
- Familiarity with CI/CD pipelines, and version control (Git).

Good to Have
- Experience with other AWS services (Lambda, SQS/SNS, RDS, CloudWatch, API Gateway).
- Exposure to Apache Camel EIP patten
- Experience working in Agile/Scrum environments.
- Prior experience mentoring engineers or leading small technical initiatives.
- Experience working on data pipeline?driven projects (e.g., ETL/ELT workflows, batch or streaming data processing, tools like Kafka, Spark, Airflow, AWS Glue, or Kinesis) is a plus.

Microservices

📌 MODULE LEAD - Microservices (Bengaluru)
🏢 Happiest Minds Technologies
📍 Bengaluru