Senior Scala Software Engineer
3Core Systems
Chicago, IL · Posted November 3, 2026
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Where Chicago, IL ranks
Where Chicago, IL placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for government pay after cost of living$146k · of 18
- #1Cities with the most jobs that do not need a four-year degree in the Midwest684 jobs · of 51
- #1Cities with the most jobs that do not need a four-year degree in the Great Lakes684 jobs · of 36
- #1Best cities for software and engineering jobs in the Midwest1,140 openings · of 59
- #1Best cities for software and engineering jobs in the Great Lakes1,140 openings · of 48
- #1Best all-round cities for mid-career professionals in the Midwest80 / 100 · of 20
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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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.