Scala Engineer

About the Role

As a Scala Engineer, you will work remotely on an hourly paid basis to review AI-generated Scala code, system designs, and technical explanations, and produce high-quality reference implementations and step-by-step reasoning for complex engineering problems. This fully remote, hourly paid contractor role is with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs.

Key Responsibilities

• Assess AI-generated Scala solutions for correctness, clarity, safety, performance, and adherence to the prompt.
• Identify errors in concurrency, distributed systems behavior, JVM performance, functional correctness, and resource handling.
• Create detailed prompts across Scala/JVM topics and write high-quality reference answers and model solutions.
• Fact-check technical information and write clear technical explanations and step-by-step reasoning.
• Evaluate, rank, and compare multiple AI responses based on correctness and reasoning quality.

Qualifications

• Bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field, or equivalent practical experience.
• 4+ years of professional experience building production systems using Scala (backend services, data platforms, or distributed systems).
• Expert-level proficiency in Scala 2.13+ and/or Scala 3, including type system, implicits/givens, collections, and functional patterns.
• Strong JVM fundamentals: memory model, garbage collection, profiling, performance tuning, and troubleshooting production issues.
• Deep experience with concurrency and effect systems (e.g., cats-effect, ZIO) and/or actor-based systems (Akka/Pekko).
• Experience designing and operating services in distributed environments: microservices, messaging/streaming, retries, idempotency, backpressure, consistency tradeoffs.
• Strong testing practices (ScalaTest, MUnit, property-based testing like ScalaCheck) and comfort with CI/CD workflows.
• Comfortable with build tooling and dependency management (sbt, Maven/Gradle interop) and version control best practices.
• Minimum C1 English proficiency (written and spoken) with ability to write clear technical explanations.
• Prior experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
• Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in Scala/JVM systems.

Additional Information

• No immediate project currently; qualified candidates will be among the first contacted when relevant opportunities arise.
• Access to future projects available through the company's expert network.
• Contractor role, hourly paid, fully remote.