Principal Software Engineer

Fidelity • Jersey City, NJ

23d

About The Position

Fidelity is seeking a Principal Software Engineer for Crypto Trading to join Fidelity Digital Assets in Jersey City, New Jersey. The role develops and delivers high-quality, timely, maintainable software that meets functional and non-functional business requirements in an agile environment. It includes partner and stakeholder engagement, design, and release support, and is a hands-on position involving writing code for product features.

The engineer will design and implement technology solutions for Fidelity Digital Assets, including high-performance algorithms for crypto trading. The position contributes to business-critical initiatives, supports continuous integration and continuous deployment, stays current with technology frameworks and blueprints, guides junior team members, and collaborates with stakeholders and cross-functional teams. The engineer will help improve productivity and contribute innovative solutions.

Fidelity Digital Assets is building an enterprise-grade platform for storing, trading, and servicing digital assets such as Bitcoin and Ethereum. The Trading team builds platform services and APIs for cryptocurrency trading. Its platform includes a crossing engine, smart router, market data aggregator, and other trading modules operating in a low-latency, high-throughput environment. The role offers the opportunity to build secure, scalable, resilient cloud-based services using modern software development practices.

Requirements

• Bachelor's degree in computer science or a related field.
• At least 10 years of software engineering experience.
• Background designing and developing low-latency systems.
• Extensive experience with modern Java using zero-GC patterns.
• Knowledge of WebSocket and FIX protocols.
• Proficiency in ultra-low-latency design patterns and system optimization.
• Experience building and optimizing PostgreSQL databases, including schema design, SQL development, and query tuning.
• Experience designing APIs, distributed systems, asynchronous workers, and resilient messaging services.
• Ability to troubleshoot and resolve application and database performance issues.
• Understanding of microservice architecture and cloud-based deployments.
• Ability to build reliable software that can withstand unreliable environments.
• Ability to provide leadership and mentorship across small, agile teams in a collaborative environment.
• Solid analytical, communication, and organizational skills.
• Interest in and experience with cryptocurrencies, and a commitment to keeping current with the space.
• Ability and drive to deliver software with a high degree of automation.
• Proficiency with version control systems and ability to develop for multiple releases in parallel.
• Learning mindset and versatility in addition to specialized expertise.
• Ability to work effectively with partners and project team members.
• Knowledge of Agile methodologies or iterative development processes.
• Ability to take ownership and accountability for deliverables.
• Excellent collaboration and interpersonal skills; effective as a mentor, team player, and contributor.
• Fidelity will not provide immigration sponsorship for this position.

Nice To Haves

• Knowledge of acceptance test-driven development.
• Experience in capital markets or cryptocurrency, particularly exposure to trading or algorithmic trading.
• Experience building a matching engine, OMS/EMS, or exchange-connectivity platform.
• Experience with kernel bypass, such as Solarflare OpenOnLoad.
• Experience with low-latency messaging products such as Aeron, Solace, or 29West.
• Knowledge of FIX protocols.

Responsibilities

• Design and implement technology solutions for the Fidelity Digital Asset business.
• Develop high-performance algorithms for trading and crypto trading.
• Work closely with business partners on business-critical initiatives.
• Write code for product features as a hands-on contributor.
• Deliver high-quality, timely, maintainable software that meets functional and non-functional requirements.
• Support software design and releases and engage partners and stakeholders.
• Demonstrate engineering excellence through continuous integration and continuous deployment.
• Keep current with IT blueprints, frameworks, and technologies that could benefit the organization and improve productivity.
• Guide and mentor junior team members; coach colleagues and take accountability for deliverables.
• Collaborate with stakeholders and large cross-functional teams to deliver work.
• Follow established practices and contribute innovative solutions to increase productivity.
• Take ownership and contribute to organization-level innovation.

Benefits

• Comprehensive health care coverage.
• Emotional well-being support.
• Market-leading retirement benefits.
• Generous paid time off.
• Parental leave.
• Charitable giving employee match program.
• Educational assistance, including student loan repayment, tuition reimbursement, and learning resources for career development.
• Bonus or other variable compensation may be included depending on position and eligibility requirements.

What This Job Offers

• Job Type: Full-time
• Career Level: Principal