3Core Systems , Inc Logo

3Core Systems , Inc

Backend Software Engineer

Posted Yesterday
Remote
Hiring Remotely in United States
Senior level
Remote
Hiring Remotely in United States
Senior level
Remote backend engineer role building web services and data pipelines using Scala and Java. Requires Akka/Pekko (streams, actors, clustering, persistence, HTTP), functional programming with Cats/Cats Effect, streaming/distributed system design, AWS services (Kinesis, DynamoDB, SQS/SNS, API Gateway, IAM, KMS), SQL optimization, CI/CD, and hands-on high-availability architecture experience.
The summary above was generated by AI

This is a remote position.

Title: Backend Software Developer

Duration: 12 months

Location: Remote

 

Core Technical Requirements

Primary Skills

·         Scala (mandatory):

o    Minimum 2–3 years of hands-on experience

·         Java:

o    Strong experience with Java 17+

·         Backend Development:

o    Building web services and data pipelines

 

 

Frameworks & Technologies

·         Akka / Pekko (critical):

o    Akka Streams (now Pekko Streams)

o    Actors, Cluster, Singleton, Persistence, HTTP

·         Functional Programming:

o    Experience with Cats / Cats Effect

·         Streaming & Distributed Systems:

o    High-concurrency and distributed architecture experience

 

 

AWS & Cloud Stack

·         Strong experience required with:

o    IAM

o    Kinesis

o    DynamoDB

o    SQS / SNS

o    API Gateway

o    KMS

 

 

Additional Technical Skills

·         SQL and query optimization

·         CI/CD pipelines (GitHub Actions preferred)

·         DevOps exposure

·         High availability & scalable system design

·         Architecture-level understanding (hands-on, not theoretical)

 

 

Ideal Candidate Profile

·         Typically 8+ years of experience

·         Background:

o    Started with Java → transitioned to Scala

·         Strong in:

o    Functional programming

o    Distributed systems

o    Stream processing

·         Hands-on engineer (not managerial)

 

 

Interview Process

·         Total rounds: 3

·         Structure:

o    2 coding rounds

o    Additional round covering:

§  Functional programming (Scala)

§  SQL

§  AWS

§  CI/CD

§  System design

Focus Areas

·         Scala coding proficiency

·         Akka/Pekko frameworks

·         Stream processing

·         Web services design

·         Distributed systems

 

 

7. Role Scope & Responsibilities

·         Backend application development

·         Building:

o    Web services

o    Data pipelines

·         Processing machine-generated events

·         No embedded systems interaction

 



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