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Senior Scala Software Engineer

3Core Systems

Chicago, IL · Posted November 3, 2026

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  • Agile
  • AWS
  • Azure
  • CI/CD
  • Java

About the job

118693-1 IT Software Engineer 5 12 months Chicago, IL (Monday and Wednesday in office) Top 3 Must-Have Skills 1. Java 8+ – 5+ years of software development experience. 2. Scala – 3+ years of hands-on programming experience. 3. Akka – 2+ years of experience with Akka Streams, Actors, HTTP, or Persistence. Position Summary Client is seeking a Senior Software Engineer to develop and maintain platform notification services that alert customers to critical events involving Client engines and machines. The ideal candidate will have strong experience in Java, Scala, and Akka technologies, along with expertise in building scalable, highly available, and reliable software applications. The engineer will work independently on complex technical challenges, drive business-focused application development, mentor team members, and contribute to software architecture, integration, testing, and deployment. Key Responsibilities · Design, develop, and maintain backend services using Java, Scala, and Akka technologies. · Build reliable, highly available, and scalable platform notification services. · Develop and maintain complex application and infrastructure components. · Identify and resolve complex application and technical issues. · Drive application development and deliver business-value-driven features. · Apply software architecture patterns, including microservices, event-driven architecture, and MVC. · Implement and maintain CI/CD pipelines using tools such as Jenkins and Azure DevOps. · Deploy and support applications in AWS environments. · Perform integration testing, customer acceptance testing, debugging, and validation. · Maintain high standards of software quality, documentation, and development practices. · Mentor software engineers and provide technical guidance. · Collaborate with internal customers, end users, and cross-functional teams. · Contribute to Agile/Scrum development processes and continuous improvement initiatives. Required Technical Skills · Java: 5+ years of software development experience using Java 8 or later. · Scala: 3+ years of Scala programming experience. · Akka: 2+ years of experience with Akka technologies, including Streams, Actors, HTTP, or Persistence. · Strong understanding of computer science fundamentals, including data structures and algorithms. · Experience developing and maintaining complex software applications. Preferred Qualifications Candidates with experience in the following areas will be preferred: · Cloud & AWS: AWS services such as API Gateway, ALB, NLB, Fargate, Lambda, S3, CloudWatch, IAM, and CloudFormation. · Software Architecture: High-availability systems, scalable applications, microservices, and event-driven architecture. · CI/CD: Jenkins, Azure DevOps, and automated software deployment. · Databases: PostgreSQL, AWS DynamoDB, and other relational or NoSQL databases. · API Development: Spring Boot and RESTful API design. · Programming Paradigms: Functional programming. · Reactive Technologies: Reactive streaming. · Additional Technologies: ZIO framework and type-level programming. · Methodologies: Agile/Scrum and collaborative software development. Experience and Leadership Expectations · Bachelor's degree with 10+ years of relevant experience, or Master's degree with 8+ years of relevant experience. · Demonstrated ability to work independently on complex technical assignments. · Experience leading small- to medium-scale projects aligned with business priorities. · Ability to mentor developers and promote coding standards and best practices. · Strong analytical, debugging, problem-solving, and communication skills. · Ability to collaborate effectively in a team-oriented environment. Work Location and Interview Requirements · Chicago-based candidates are preferred. · Local candidates must be available for in-person interviews when required. · Candidates considered for the hybrid arrangement must be available to work onsite on Mondays and Wednesdays.