JAVA Back-end Microservices
- DC Consultants
- 1 to 3 Yrs
- Mumbai
- 3 years ago
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Job Description
:We have an urgent opening for the position of JAVA Backend Microservices for an MNC Company.
(For SE III and above)
Your experience or knowledge checks most of these boxes
o Excellent programmer, preferably in Java Intermediate (Collections, Polymorphism, Design
Patterns) to Expert level (Annotations, Lambda, Streaming, Concurrency)
o Good knowledge of data structures and algorithms if methods you write are in traffic request path, you know how to avoid unacceptable time complexity
o Thorough knowledge of REST Framework like Spring Boot (or Lagom), REST Maturity Levels, good and bad practices of REST
o Where to use non-REST frameworks like gRPC over Thrift or Protobuf
o Nuances of TCP, UDP, HTTP, HTTP2, SSL
o Thorough understanding of designing distributed systems without a single point of failure that self-heal and stay responsive during failures
o How to stop cascading failures by implementing fallbacks, graceful degradation, back pressure, circuit breaker, request collapsing/caching, adaptive concurrency limits Hystrix, Resilience4J
o Choosing the right data store for the given requirements Relational, Graph, Object, Document, Columnar, Key-Value. We use Oracle, MySQL, Mongo, Cassandra
o Usage of mid-tier caches define the right keys, how to partition them, setting TTLs. We use
Redis, Memcache, EHCache, Hazelcast, Aerospike.
o Load Balancing and Adaptive Routing across nodes
o Implementing distributed paradigms like tune-able eventual consistency, CQRS, Event sourcing
o Understanding the implications of asynchronous communication and non-blocking IO
o Nuances of using different servers embedded vs standalone, Tomcat, Undertow, Netty, Jetty
o Designing systems for achieving low latency, low error rate, and high throughput
o 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)
o Compliance to 12-factor app and a solid understanding of different layers in the services stack
Load Balancer, API Gateway, Service Discovery, Central Config Management, Feature toggle, etc.
o Understanding of Data Streaming and Messaging frameworks like Apache Spark, Storm, Flink, Kafka
Your Qualities as an Engineer
o You are a champion at Code reviews and Unit/Mock/integration Tests o You have a strong sense of ownership of what you design and deploy o You provide strong technical mentorship to team members
o You are an excellent team player
o You continuously learn and improve
o You are certainly NOT an intellectual jerk
For (SE II)
Your experience or knowledge checks most of these boxes
o Excellent programmer, preferably in Java at least at an intermediate level (Collections, Polymorphism, Design Patterns, Annotations, Lambda)
o Good knowledge of data structures and algorithms if methods you write are in traffic request path, you know how to avoid unacceptable time complexity
o Knowledge of REST Framework like Spring Boot
o Nuances of TCP, UDP, HTTP, HTTP2, SSL
o Understanding of Relational or Document database
o Usage of mid-tier caches. We use Redis, Memcache, EHCache, Hazelcast, Aerospike.
o Load Balancing and Adaptive Routing across nodes
o Understanding of asynchronous communication and non-blocking IO
Pluses if you check a few of the following boxes
o Compliance to 12-factor app and a solid understanding of different layers in the services stack
Load Balancer, API Gateway, Service Discovery, Central Config Management, Feature toggle, etc.
o Understanding of Data Streaming and Messaging frameworks like Apache Spark, Storm, Flink, Kafka
o 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
o You do code reviews and write unit tests
o You display a sense of ownership of what you design and deploy
o You are an excellent team player
o You have a strong appetite for continuous learning and improvement
o You are certainly NOT an intellectual jerk
Employement Category:
Employement Type: Full timeIndustry: Sports / Fitness Role Category: Sales / BD Functional Area: Not ApplicableRole/Responsibilies: JAVA Back-end MicroservicesContact Details:
Company: DC ConsultantsLocation(s): Mumbai
Keyskills: java backend microservices mk
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