Scala Tech Champion

Happiest Minds Technologies; Pune District, Bengaluru, Delhi; Hybrid; INR 3,500,000 - 6,000,000; Full time

Job summary

Happiest Minds Technologies seeks an experienced Back-End Software Engineer to join a cross-functional product team responsible for a customer-facing platform. The engineer will design, build, and scale robust back-end services in a cloud-native, event-driven environment with autonomy and strong architectural skills.

You will work with Scala/Java (Python knowledge preferred), collaborate with Product, Front-End, and SRE teams, and contribute to microservices, CI/CD, and high-performance APIs

Qualifications

• 8+ years of experience in Software Engineering.
• Strong experience with Scala (Pekko/Akka, Cats, Cats Effect) and/or Java.
• Preferably Python knowledge.
• Understanding of agentic AI patterns, including planning, tool use, workflow orchestration, reflection, memory, and multi-agent collaboration
• Understanding of AI evaluation, hallucination mitigation, grounding, observability, and responsible AI practices
• Awareness of the security risks associated with LLM applications, including prompt injection, sensitive-data leakage, excessive agency, and unsafe tool execution
• Practical experience with Event Sourcing, CQRS, and Domain-Driven Design (DDD).
• Experience designing and scaling microservice architectures.
• Building and maintaining high-performance, resilient APIs.
• Solid understanding of distributed systems, fault tolerance, and observability.
• Hands-on experience with Kafka and event-driven architecture.
• Cloud-native development on AWS.
• Containerization and orchestration using Docker and Kubernetes.
• Experience with relational and non-relational databases.
• Experience working in Agile product development teams.

Responsibilities

• Design, develop, and maintain scalable back-end services.
• Implement clean, maintainable, and testable code (primarily Scala and Java).
• Contribute to system and service architecture decisions.
• Build and evolve distributed systems and microservices.
• Collaborate closely with Product to deliver user-centric solutions.
• Ensure high standards for code quality, reliability, and performance.
• Participate in code reviews and knowledge sharing.
• Support and improve CI/CD pipelines and delivery processes.

Skills

Scala

Java

Python

Microservices

Kafka

AWS

Docker

Kubernetes

Event-Driven

CQRS

DDD

Observability

Security (LLM)

Distributed Systems

Tools

Kafka

Docker

Kubernetes

AWS

Job description

Job Description

About the Role

We are seeking an experienced Back-End Software Engineer to join a cross-functional product team responsible for a customer-facing platform. The engineer will focus on building and scaling robust, highly available back-end services in a cloud-native, event-driven environment.

The role requires strong autonomy, solid architectural understanding, and close collaboration with Product, Front-End, and SRE teams.

What Will You Do?

• Design, develop, and maintain scalable back-end services.
• Implement clean, maintainable, and testable code (primarily Scala and Java).
• Contribute to system and service architecture decisions.
• Build and evolve distributed systems and microservices.
• Collaborate closely with Product to deliver user-centric solutions.
• Ensure high standards for code quality, reliability, and performance.
• Participate in code reviews and knowledge sharing.
• Support and improve CI/CD pipelines and delivery processes.

Required Knowledge and Experience

• 8+ years of experience in Software Engineering.
• Strong experience with Scala (Pekko/Akka, Cats, Cats Effect) and/or Java.
• Preferably Python knowledge.
• Understanding of agentic AI patterns, including planning, tool use, workflow orchestration, reflection, memory, and multi-agent collaboration
• Understanding of AI evaluation, hallucination mitigation, grounding, observability, and responsible AI practices
• Awareness of the security risks associated with LLM applications, including prompt injection, sensitive-data leakage, excessive agency, and unsafe tool execution
• Practical experience with Event Sourcing, CQRS, and Domain-Driven Design (DDD).
• Experience designing and scaling microservice architectures.
• Building and maintaining high-performance, resilient APIs.
• Solid understanding of distributed systems, fault tolerance, and observability.
• Hands-on experience with Kafka and event-driven architecture.
• Cloud-native development on AWS.
• Containerization and orchestration using Docker and Kubernetes.
• Experience with relational and non-relational databases.
• Experience working in Agile product development teams.

Deal Breaker Skill

Scala

Mandatory Skills

Scala| Microservices| Dockers & Containers