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Sidzen

4 jobs near Columbus, OH

Java Backend Developer(No third party vendor pls)

Sidzen LLC

Alpharetta, GA • On-site

$49.25 - $64/hr

Other

Posted yesterday

New

Job description

Key Responsibilities:
  • Design, develop, test, and maintain robust Java applications and microservices that meet business requirements.
  • Architect and implement scalable, high-performance microservices using Spring Boot and related technologies.
  • Handle multi-threaded programming, concurrency control, and performance tuning to ensure low-latency, reliable systems.
  • Collaborate with frontend, backend, and data teams to define APIs and data models; ensure secure, well-documented interfaces.
  • Build and optimize SQL queries; work with large, complex databases and data structures.
  • Participate in architectural discussions, provide technical leadership, and mentor junior developers.
  • Adhere to best practices for security, reliability, and compliance within a financial services context.
  • Troubleshoot production issues, perform root-cause analysis, and implement durable fixes.
 
Required Qualifications:
  • Overall 8+ years of experience in IT is required
  • Strong Core Java expertise (Java 8/11/17+ with a deep understanding of JVM internals, garbage collection, and performance tuning).
  • Microservices architecture experience; design and implement scalable services.
  • Multithreading and concurrency mastery; thread-safe programming and synchronization techniques.
  • Spring Framework; extensive experience with Spring Boot, Spring Data, Spring Cloud, and related ecosystems.
  • SQL proficiency with hands-on experience optimizing complex queries; familiarity with relational databases (e.g., Oracle, PostgreSQL, MS SQL).
  • Experience working with large databases and data warehousing concepts.
  • Financial services domain experience is highly preferred (trading, risk, settlements, market data, regulatory reporting, etc.).
  • Strong problem-solving skills, attention to detail, and the ability to work in a fast-paced environment.

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