Sr. Java Full Stack Engineer

job summary:

Ability to understand complex, end-to-end systems and identify performance, scalability, or resilience bottlenecks.

Strong analytical, communication, and organizational skills.

Ability to manage multiple tasks and thrive in a collaborative team environment.

Self-driven innovation and ability to work with leadership.

Willingness to support production systems and participate in on-call rotations, including occasional weekend support.

location: Jersey City,, New Jersey

job type: Contract

salary: $85 - 86 per hour

work hours: 8am to 5pm

education: Bachelors



responsibilities:

• Architect and develop distributed, event-driven trading systems optimized for low latency and high throughput.
• Design and implement asynchronous processing frameworks and resilient messaging services.
• Collaborate with internal and external teams to deliver robust, end-to-end trading workflows.
• Lead performance tuning and optimization efforts across the platform.
• Mentor junior engineers and promote engineering best practices.
• Support production and non-production environments, including participation in a weekly on-call rotation.

qualifications:

Bachelor's degree in Computer Science, Engineering, Information Technology, or equivalent.

10+ years of hands-on software design and development experience.

Expertise in Java, Python, and Linux.

Deep experience with low latency messaging systems (e.g., 29West, Kafka).

Proficiency in KDB+ or other time-series databases.

Strong background in building scalable, distributed, asynchronous, and event-driven applications.

Advanced knowledge of low latency design patterns and performance optimization techniques.

Experience with Capital Markets or Brokerage systems, especially order management.

Solid understanding of the FIX protocol and FIX engines.

Worked with AI developer assist tools (e.g. GitHub Copilot).

Experience with CI/CD tools such as GitHub, Maven, Jenkins, Artifactory, and uDeploy.

Hands-on experience deploying applications to AWS or other cloud platforms.

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact

Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.