Software Development Engineer 3

Jio
Bengaluru
5 - 9 yrs exp
5 - 9 yrs exp
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About opportunityAbout opportunity

Your experience or knowledge checks most of these boxes

  • Excellent programmer, preferably in Java – Intermediate (Collections, Polymorphism, Design Patterns) to Expert level (Annotations, Lambda, Streaming, Concurrency)
  • Good knowledge of data structures and algorithms – if methods you write are in traffic request path, you know how to avoid unacceptable time complexity
  • Thorough knowledge of REST Framework like Spring Boot (or Lagom), REST Maturity Levels, good and bad practices of REST
  • Where to use non-REST frameworks like gRPC over Thrift or Protobuf
  • Nuances of TCP, UDP, HTTP, HTTP2, SSL
  • Thorough understanding of designing distributed systems without single point of failures that self heal and stay responsive during failures
  • How to stop cascading failures by implementing fallbacks, graceful degradation, back pressure, circuit breaker, request collapsing/caching, adaptive concurrency limits – Hystrix, Resilience4J
  • Choosing the right data store for the given requirements – Relational, Graph, Object, Document, Columnar, Key-Value. We use Oracle, MySQL, Mongo, Cassandra
  • Usage of mid-tier caches – define the right keys, how to partition them, setting TTLs. We use Redis, Memcache, EHCache, Hazelcast, Aerospike.
  • Load Balancing and Adaptive Routing across nodes
  • Implementing distributed paradigms like tune-able eventual consistency, CQRS, Event sourcing
  • Understanding the implications of asynchronous communication and non-blocking IO
  • Nuances of using different servers – embedded vs standalone, Tomcat, Undertow, Netty, Jetty
  • Designing systems for achieving low latency, low error rate and high throughput
  • X, Y, Z cubes of scaling – by cloning, sharding and breaking into microservices. Applying the right trade-offs using CAP (Consistency, Availability and tolerance to network Partition)
  • Compliance to 12-factor app and solid understanding of different layers in the services stack – Load Balancer, API Gateway, Service Discovery, Central Config Management, Feature toggle, etc.
  • Understanding of Data Streaming and Messaging frameworks like Apache Spark, Storm, Flink, Kafka

Your Qualities as an Engineer

  • You are a champion at Code reviews and Unit/Mock/integration Tests
  • You have a strong sense of ownership of what you design and deploy
  • You provide strong technical mentorship to team members
  • You are an excellent team player
  • You continuously learn and improve
  • You are certainly NOT an intellectual jerk

Your experience or knowledge checks most of these boxes

  • Excellent programmer, preferably in Java – at least at an intermediate level (Collections, Polymorphism, Design Patterns, Annotations, Lambda)
  • Good knowledge of data structures and algorithms – if methods you write are in traffic request path, you know how to avoid unacceptable time complexity
  • Knowledge of REST Framework like Spring Boot
  • Nuances of TCP, UDP, HTTP, HTTP2, SSL
  • Understanding of Relational or Document database
  • Usage of mid-tier caches. We use Redis, Memcache, EHCache, Hazelcast, Aerospike.
  • Load Balancing and Adaptive Routing across nodes
  • Understanding of asynchronous communication and non-blocking IO

Pluses if you check a few of the following boxes

  • Compliance to 12-factor app and solid understanding of different layers in the services stack –Load Balancer, API Gateway, Service Discovery, Central Config Management, Feature toggle, etc.
  • Understanding of Data Streaming and Messaging frameworks like Apache Spark, Storm, Flink, Kafka
  • Choosing the right data store for the given requirements – Relational, Graph, Object, Document, Columnar, Key-Value. We use Oracle, MySQL, Mongo, Cassandra

Your Qualities as an Engineer

  • You do code reviews and write unit tests
  • You display a sense of ownership of what you design and deploy
  • You are an excellent team player
  • You have a strong appetite for continuous learning and improvement
  • You are certainly NOT an intellectual jerk
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Hiring Team
company
About Jio

Reliance Jio, a successful and growing provider of 4G mobile telephone, broadband services, and digital services in India, has multiple great teams like JioCloud, JioPlay, JioChat, JioMoney, and more. We are on constant lookout for experts who are always learning and adapting to the ever-evolving tech landscape.

At Reliance Jio, you will build a Digital Retail platform, which will be generic in nature, i.e., from a single platform many digital products can be created and sold. The platform will be supplier agnostic as well as channel agnostic. Currently, the platform supports all Travel products (like bus booking, hotel booking and flight booking) and financial products (like Digital Gold, Mutual funds, etc.)

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