Software Engineer – Client Trading Infrastructure (Java)

Clarity, LLC.; United States; On-site; USD 120,000 - 180,000; Full time

Job summary

Clarity, LLC. in New York, NY, is seeking a Software Engineer to join a highly collaborative team building mission-critical trading technology.

You will design, develop, and maintain scalable, high-performance systems supporting the full trading lifecycle, including order management, exchange connectivity, routing, and post-trade processing. You are a curious, self-directed engineer who works across the technology stack, solves complex problems, and contributes to systems that operate at scale

Qualifications

• Bachelor's or Master's degree in Computer Science, Computer Engineering, or related field, or equivalent professional experience.
• 3+ years of software engineering experience developing distributed and scalable applications.
• Strong programming experience in Java and/or C++.
• Experience with Python is a plus.

Responsibilities

• Design, develop, and maintain proprietary trading systems and infrastructure that support critical business operations.
• Build scalable, high-performance software solutions across a range of applications, from user-facing tools to backend infrastructure.
• Enhance system reliability, scalability, and performance while supporting the continued growth of the platform.
• Partner with engineers and stakeholders to understand business needs and translate them into effective technical solutions.
• Contribute to the design and implementation of distributed systems, low-latency applications, and high-volume transaction processing environments.
• Participate in architecture discussions, code reviews, testing, and ongoing improvements to engineering standards and best practices.
• Support the development of tools and technologies that improve operational efficiency and the overall trading experience.

Skills

Java

C++

Distributed systems

Low-latency

Python

Education

Bachelor's degree in CS/Engineering

Tools

Relational databases

Job description

We are seeking a Software Engineer to join a highly collaborative development team responsible for building and enhancing mission-critical trading technology. This role will focus on designing, developing, and maintaining scalable, high-performance systems that support the full trading lifecycle, including order management, exchange connectivity, routing, and post-trade processing. The ideal candidate is a technically curious and self-directed engineer who enjoys solving complex problems, working across the technology stack, and contributing to systems that operate at significant scale and speed.

Key Responsibilities

• Design, develop, and maintain proprietary trading systems and infrastructure that support critical business operations
• Build scalable, high-performance software solutions across a range of applications, from user-facing tools to backend infrastructure
• Enhance system reliability, scalability, and performance while supporting the continued growth of the platform
• Partner with engineers and stakeholders to understand business needs and translate them into effective technical solutions
• Contribute to the design and implementation of distributed systems, low-latency applications, and high-volume transaction processing environments
• Participate in architecture discussions, code reviews, testing, and ongoing improvements to engineering standards and best practices
• Support the development of tools and technologies that improve operational efficiency and the overall trading experience

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field, or equivalent professional experience
• 3+ years of software engineering experience developing distributed and scalable applications
• Strong programming experience in Java and/or C++
• Experience building high-performance, scalable systems in complex technical environments
• Strong problem-solving skills and ability to work independently while collaborating effectively with others
• Excellent written and verbal communication skills
• Experience with Python, relational databases, distributed systems, or highly concurrent applications is a plus
• Exposure to low-latency systems, high-volume transaction processing, or financial technology environments is beneficial but not required

Compensation & Schedule

• Full-time
• On-site
• New York, NY