Demo

Digital Core Engineer

Spark Tek Inc
Bethesda, MD Contractor
POSTED ON 6/8/2026
AVAILABLE BEFORE 7/7/2026
We are seeking a highly skilled and experienced Java/Digital Core Developer or Architect to join our team. The successful candidate will be responsible for designing, developing, and implementing high-quality Java microservices using the Spring Boot framework. Additionally, the role involves architecting scalable and reliable microservices utilizing a Java rules engine with the MVEL language.

Required Skills/Level Of Experience

  • Minimum of 10 years of experience with architectural frameworks and application design.
  • Proven expertise as a Java/Digital Core Developer with at least 10 years of experience in the following areas:
    • Designing, developing, and implementing Java-based microservices using the Spring Boot framework.
    • Building and testing microservices using a Java rules engine with MVEL (business rules/Java pseudo-code).
    • Collaborating with cross-functional teams to analyze requirements and design innovative Java plugins and microservices.
    • Architecting and designing scalable and reliable Java microservices to meet complex business requirements.
    • Working with Data Fabric Platform on AWS.
Technical Proficiencies

  • Programming Languages & Frameworks:
    • Java 17
    • Spring Boot
    • MVEL
    • PySpark
  • Databases & Messaging:
    • MongoDB 5.3.x
    • AWS DynamoDB
    • Kafka (including AWS MSK)
  • Front-End & UI Technologies:
    • React
    • Node.js
    • Thymeleaf
    • Javabase (front-end)

Hourly Wage Estimation for Digital Core Engineer in Bethesda, MD
$80.00 to $98.00
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