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Senior Java Developer
Senior Java DeveloperMARKETTIME, LLC • Dallas, TX, US
Senior Java Developer

Senior Java Developer

MARKETTIME, LLC • Dallas, TX, US
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  • [job_card.full_time]
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Job Description

Job Description

Senior Java Developer

Location : Remote

Type : Full-time

About Us

MarketTime is a fast-growing B2B ecommerce SaaS company transforming how businesses buy and sell through a modern, multi-tenant platform. As a registered PayFac, we process high volumes of sensitive financial data and credit card transactions, requiring rigorous adherence to PCI-DSS and evolving fintech regulations. Our platform is powered by robust public APIs, a scalable MySQL-backed infrastructure, and a growing suite of payment orchestration capabilities.

We’re looking for a Senior Java Developer to join our engineering team. You’ll play a critical role in designing, building, and scaling secure, high-performance features in our ecommerce platform while mentoring others and helping us maintain strong compliance standards.

Responsibilities

  • Lead the design, development, and deployment of Java-based microservices for version 2.0 of our SaaS ecommerce platform.
  • Ensure solutions are PCI-DSS compliant , secure, and scalable.
  • Work with cross-functional teams (Product, DevOps, QA, Security) to deliver features from design to production.
  • Optimize data access and persistence using MySQL (schema design, query optimization, performance tuning).
  • Contribute to the evolution of our public APIs with a focus on reliability, usability, and performance.
  • Drive engineering best practices : code reviews, CI / CD, automated testing, and documentation.
  • Mentor and coach mid-level and junior developers to strengthen the team.
  • Troubleshoot production issues and provide on-call support as needed.

Qualifications

  • 7+ years of professional experience in Java development (Java 11+ preferred).
  • Strong expertise in REST APIs, and microservices architecture .
  • Experience working with multi-tenant SaaS applications .
  • Solid experience with MySQL (data access, SQL queries).
  • Knowledge of message queues (Kafka, RabbitMQ) and event-driven architectures.
  • Familiarity with cloud environments (AWS) and containerization (Docker, Kubernetes).
  • Hands-on experience Git and CI / CD pipelines
  • Excellent problem-solving and communication skills.
  • Experience mentoring developers and leading technical initiatives.

    • Preferred

  • Strong understanding of payment processing, PCI compliance, and data security best practices .
  • Optimization of MySQL (indexing, query optimization).
  • Prior experience in ecommerce, fintech, or payment processing .
  • Familiarity with API security (OAuth2, JWT, rate limiting, etc.).
  • Familiarity with automated testing frameworks (JUnit, Mockito).
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