F

Fidelity Investments

Manages investments and workplace retirement plans

Principal Software Engineer

Full-TimeUpdated on 10/21/2026
$107k - $216k/yr+ Bonus or variable compensation
Senior
Bachelor's
Boston, MA, USA
In Person
Software EngineeringGame Engineering
No H1B Sponsorship

About the job

Requirements
  • A bachelor's degree in computer science or a related field and at least 5 years of relevant professional experience are required.
  • Hands-on experience developing spatial computing and extended reality applications, including virtual and augmented reality experiences.
  • Proficiency with one or more leading development platforms, such as Unity, Unreal Engine, Godot, NVIDIA Omniverse, NVIDIA Isaac Sim, Apple Xcode, or Reality Composer.
  • Comfort working across programming languages, graphics and application frameworks, and operating environments.
  • Experience using artificial intelligence-assisted coding tools to improve development workflows.
  • Experience designing application programming interfaces and building distributed or service-based systems.
  • Understanding of relational and non-relational databases, such as MySQL, PostgreSQL, and MongoDB.
  • Experience deploying applications in AWS or other cloud environments.
  • Ability to support interactive applications and media platforms in fast-moving, live environments, including technologies such as show-control systems, TouchDesigner, and Q-SYS.
  • Ability to troubleshoot calmly, make sound decisions under pressure, and help keep experiences running reliably.
  • Clear communication and effective collaboration with technical and non-technical partners.
  • Comfort collaborating with creative teams, translating ideas into practical solutions, and adapting as design needs evolve.
  • Practical understanding of CPU and GPU roles, NVIDIA GPU generations, Apple silicon and Metal, memory and storage considerations, and their impact on real-time graphics, spatial computing, simulation, and artificial intelligence workloads.
Responsibilities
  • Design and develop innovative experiences and related technologies for Fidelity Experience Center.
  • Rapidly prototype ideas, collaborate with design, product, and engineering partners, and deliver intuitive, high-quality experiences exploring new applications of extended reality and artificial intelligence.
  • Help Fidelity evaluate emerging technologies and turn promising concepts into practical prototypes and pilots for customers and associates.
  • Explore emerging technologies, prototype hardware integrations, and experiment with new interaction models.
  • Support interactive applications and media platforms in fast-moving, live environments.
  • Troubleshoot issues and help keep experiences running reliably.
Desired Qualifications
  • Hands-on experience with device setup, peripheral integration, wiring, sensors, cameras, displays, or similar hardware.

About the company

Fidelity Investments manages money and runs brokerage accounts for individuals, while administering workplace benefits and supporting financial advisers and institutions. Its funds span active management and index investing, and its advice services range from automated portfolios to dedicated wealth managers. Customers trade through online accounts or work with advisers by phone and at investor centers, while employers use its services for retirement savings and stock plans. The business earns advisory fees and charges for selected trades, with institutional custody and clearing services alongside its consumer accounts. Fidelity was founded in 1946 and is headquartered in Boston, Massachusetts, United States.

Company Size

10,001+

Company Stage

Debt Financing

Total Funding

$247.3B

Headquarters

Boston, Massachusetts

Founded

1946

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Simplify's Take

What believers are saying

  • Growth supports business investment: March 2026 reporting showed Fidelity's 2025 revenue rose 15% to $37.7 billion.
  • Eligible US employees build retirement savings: Fidelity combines a 401(k) match with annual profit sharing.
  • Investment teams gained product scope: Fidelity launched four active small and midcap ETFs in April 2026.

What critics are saying

  • Technology careers face restructuring: Fidelity cut about 800 jobs in its technology and product overhaul in May 2026.
  • Boston staff face less flexibility: April 2026's policy sets five office days from September, with phone-support exemptions.
  • Custody teams face irreversible errors: Fidelity's bitcoin fund warns lost private keys without backups permanently strand assets.

What makes Fidelity Investments unique

  • Public shareholders do not set Fidelity's agenda: the investment group remains privately held.
  • Fidelity competes on fund costs: its four ZERO index mutual funds charge no expense ratio.
  • Platform scale supports large projects: Fidelity reported $18 trillion under administration for year-end 2025 in March 2026.

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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

Company News

Business Wire
Oct 16th, 2026
Newsroom | Business Wire

The global leader in press release distribution and regulatory disclosure. Public relations and investor relations professionals rely on Business Wire for broad-based and targeted market reach.

IT桔子
Oct 15th, 2026
Veir raises $24.9M Series A+ for high-temperature superconductor power transmission

US startup Veir has raised $24.9 million in a Series A+ round. VXI Capital, Galvanize Climate Solutions, Fidelity Investments, Congruent Ventures, The Engine, and Breakthrough Energy Ventures invested. Veir develops a way to transmit electricity using high-temperature superconductors (HTS). Its platform uses evaporative cryogenic cooling. The technology lets utilities carry more power at lower voltage within a smaller right-of-way. This helps connect the lowest-cost renewable resources to the places that need them.

Business Wire
Oct 13th, 2026
Inscripta Announces the First Commercial Shipment of Its Onyx™ Digital Genome Engineering Platform and Closes $150 Million in New Financing

Financing round led by Fidelity and T. Rowe Price funds underscores vast opportunities to bring Inscripta’s technology to the broader bioeconomy.

Morningstar
Oct 13th, 2026
Soufflé Therapeutics raises $135M Series B led by Juvia Group for muscle and heart RNA therapies

Soufflé Therapeutics has closed an oversubscribed $135 million Series B round led by Juvia Group. New investors include TCG Crossover Management, BB Biotech, Fidelity Management & Research Company, Balyasny Asset Management, and a sovereign wealth fund. Existing backers such as Amgen Ventures, ARCH Venture Partners, and Temasek also took part. The RNA therapies company will use the money to move its three lead programs into clinical studies. They target facioscapulohumeral muscular dystrophy (FSHD), heart failure with reduced ejection fraction, and muscle and metabolic disorders. It will also advance its pipeline in other cell types and tissues. Its REMEDY (Receptor Mediated Delivery) engine delivers oligonucleotide therapies to specific cells outside the liver. "This exceptional group of investors" backs the engine's potential, said chief executive officer Amir Nashat.

Yahoo Finance
Oct 8th, 2026
Fidelity's Timmer predicts 35% Q3 earnings jump as S&P 500 P/E drops 10% year-over-year

Fidelity's Jurrien Timmer predicts Q3 earnings growth could reach 30% to 35% if recent quarters' typical post-reporting bounce repeats. Despite trailing earnings being up 28% and forward earnings expected to rise another 20%, the market's trailing price-to-earnings multiple has fallen 10% year-over-year. Timmer, Fidelity's Director of Global Macro, notes that investors historically don't pay top multiples for peak earnings growth. Bloomberg data shows Q2 2026 growth estimates at 34% and Q1 2026 at 29%, well above the 11% to 15% posted from Q4 2024 through Q3 2025. The S&P 500 has already reached a record high above 7,800. Schwab's Kevin Gordon warns that a single mega-cap capital expenditure miss could disrupt earnings, noting AI stocks now carry much of the index.