Principal Software Engineer (Java, Trading, FIX Protocol) at Fidelity Investments

Jersey City, New Jersey, United States

Fidelity Investments Logo
Not SpecifiedCompensation
Senior (5 to 8 years), Expert & Leadership (9+ years)Experience Level
Full TimeJob Type
UnknownVisa
Financial Services, Capital Markets, TradingIndustries

Requirements

  • Bachelor’s degree in Computer Science, Engineering, Information Technology, or equivalent
  • 10+ years of hands-on software design and development experience
  • Expertise in Java, C/C++, Python, and Linux
  • Deep experience with low latency messaging systems (e.g., 29West, Kafka)
  • Proficiency in KDB+ or other time-series databases (preferred)
  • 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
  • Familiarity 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
  • 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 comfort working with leadership
  • Willingness to support production systems and participate in on-call rotations, including occasional weekend support

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

Skills

Key technologies and capabilities for this role

JavaC/C++PythonLinux29WestKafkaKDB+low latency messagingdistributed systemsevent-driven architectureasynchronous processingperformance optimizationFIX ProtocolCapital Marketstrading systems

Questions & Answers

Common questions about this position

What is the salary range for this Principal Software Engineer position?

The base salary range is $107,000-216,000 USD per year, with placement varying based on job responsibilities, scope, geographic location, candidate’s relevant experience, and other factors.

Is this role remote or does it require office presence?

This information is not specified in the job description.

What are the key technical skills required for this role?

The role requires expertise in Java, C/C++, Python, and Linux, deep experience with low latency messaging systems like 29West or Kafka, solid understanding of the FIX protocol, and experience building scalable, distributed, event-driven applications.

What is the team culture like at Fidelity Wealth’s Trade Management Engineering group?

The team is high-performing and fast-paced, working with cutting-edge tools to deliver low-latency, high-throughput trading platforms, while collaborating across internal and external teams in a mission-critical environment.

What experience makes a candidate stand out for this position?

Candidates with 10+ years of hands-on software design experience, expertise in low-latency trading systems, FIX protocol, Capital Markets or Brokerage systems, and strong leadership skills in mentoring and performance optimization will stand out.

Fidelity Investments

Investment management and financial services provider

About Fidelity Investments

Fidelity Investments offers a range of financial services and tools designed to help individuals manage their investments and stay informed about the markets. Their products include mobile applications and market monitoring tools that provide users with real-time market quotes, news, and trading capabilities. For example, the Fidelity Market Monitor for Glass delivers daily market quotes directly to Google Glass, while the Fidelity app for Windows Phone 8 allows users to access news and trading tools on their mobile devices. Additionally, features like the Watch List Visualization for iPad help users track stock price changes over time using a heatmap. What sets Fidelity apart from its competitors is its focus on integrating new technologies and user-friendly interfaces to enhance the investment experience. The goal of Fidelity Investments is to empower individuals with the information and tools they need to make informed financial decisions.

Boston, MassachusettsHeadquarters
1946Year Founded
$120,238.8MTotal Funding
DEBT_FINANCINGCompany Stage
Fintech, Financial ServicesIndustries
10,001+Employees

Benefits

Health Insurance
Mental Health Support
Hybrid Work Options
401(k) Retirement Plan
401(k) Company Match
Unlimited Paid Time Off
Parental Leave
Student Loan Assistance
Tuition Reimbursement

Risks

Loss of key personnel like Gita Bal may impact Fidelity's research capabilities.
Increased competition from Vanguard's new division could draw clients away from Fidelity.
Potential reputational risk from Bitcoin ETF outflows could affect Fidelity's offerings.

Differentiation

Fidelity Labs offers innovative beta products like Market Monitor for Google Glass.
Fidelity's mobile solutions are available on multiple platforms, including Windows Phone and iPad.
Fidelity's Open Limit Order Visualization provides unique insights into order execution proximity.

Upsides

Increased adoption of wearable tech could boost Fidelity's mobile solutions.
Growing interest in Bitcoin ETFs suggests expansion in Fidelity's digital asset offerings.
Rise of AI could benefit Fidelity's data analytics and AI-driven investment strategies.

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