Sr Backend Developer

2 days ago

Bhubaneshwar, Odisha, India Nisum Full time ₹ 20,00,000 - ₹ 25,00,000 per year

Work Location & Policy

  • Location: Bhubaneswar//Hyderabad (Onsite)
  • Work Mode: 4 days from office, 1 day work-from-home
  • Minimum 6 hours of on-site work required during office days
  • Free meals, snacks and amenities provided daily to support employee well- being

We are looking for an experienced 
Java Backend Developer
 with 
6-9
 years of hands-on experience, including strong proficiency in 
Spring WebFlux
 and 
MongoDB
. The ideal candidate will contribute to building reactive, high-performance, and scalable backend systems to support our growing application needs.

Key Responsibilities:

  • Design and develop 
    reactive microservices
     using 
    Spring WebFlux
  • Implement RESTful APIs and integrate with front-end and external systems
  • Work with 
    MongoDB
     for data modeling, indexing, and aggregation pipelines
  • Ensure non-blocking, asynchronous communication across services
  • Collaborate closely with product managers, architects, and DevOps engineers
  • Write unit and integration tests using 
    JUnit
     and 
    Mockito
  • Participate in design reviews and code walkthroughs
  • Identify and resolve performance bottlenecks and memory issues
  • Ensure backend services are secure, scalable, and maintainable

Required Skills & Experience:

  • 6–9 years of Java backend development experience
  • Strong hands-on experience with 
    Spring Boot
     and 
    Spring WebFlux
  • Solid experience working with 
    MongoDB
     (collections, schema design, aggregation)
  • Understanding of 
    reactive programming
     principles and patterns
  • Familiarity with asynchronous data flow and 
    Project Reactor
  • Experience building and consuming 
    REST APIs
  • Familiarity with 
    Docker
    , Git, and basic CI/CD pipelines
  • Good knowledge of 
    unit testing
    , error handling, and exception management
  • Strong debugging, analytical, and problem-solving skills

Preferred Qualifications:

  • Exposure to 
    cloud platforms
     (AWS/GCP/Azure)
  • Experience with 
    Kafka
    , RabbitMQ, or other message brokers
  • Knowledge of 
    Kubernetes
     or container orchestration tools
  • Prior experience in Agile development environments
  • Understanding of OAuth2/JWT security models

About Nisum:

Nisum is a global technology consulting and solutions company with over 25 years of market presence. We specialize in digital transformation, software development, and IT consulting. Our clients include Fortune 500 companies across the globe. We take pride in our people-first culture and commitment to excellence, making us a trusted technology partner across industries.One distinct perk that shows Nisum's intention to care for employees daily well-being is the provision of free meals, snacks, and related amenities.

Website Link:

Nisum | A Technology Consulting Partner

Learn how Nisum designs and builds customized eCommerce platforms to power enterprises large and small.

NB: Interview guidelines

Kindly Do Not Use HEADPHONES or EARPHONES while giving the interview.

Nisum | A Technology Consulting Partner

Learn how Nisum designs and builds customized eCommerce platforms to power enterprises large and small.

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