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**Principal Software Engineer, UX – Asset Management Technology Foundactions** - Lead enterprise design system architecture, quality, and adoption; translate UX design into scalable, reusable assets (tokens, components, theming). - Expertise in Figma, PrimeNG, HTML5, CSS3, TypeScript; proven AI-enabled UX experience a plus. - Collaborate with designers and engineers to ensure UX consistency across desktop, web, and mobile platforms, and drove UX standard adherence at scale. - Familiarity with AI-assisted design generation and UX validation tools; understanding of API-driven UI integration and shared platform services.
- Compensation
- $107,000 – $216,000 USD
- City
- Not specified
- Country
- Not specified
Currency: $ (USD)
Full Job Description
Job Description:
Principal Software Engineer, UX Asset Management Technology Foundations
Note: Fidelity will not provide immigration sponsorship for this position.
The Role
We are seeking a Principal Engineer specializing in UX Design Systems to lead the architecture, quality, and adoption of enterprise design system.
This is a senior hands-on technical role with a strong UX bar. You will be responsible for translating user experience principles into scalable, reusable, and accessible design system assetsincluding design tokens, component libraries (e.g., PrimeNG-based), theming frameworks, and UX standards.
You will work at the intersection of UX design and engineering, ensuring that the design system is both user-centered and production-ready, enabling teams to deliver consistent, high-quality experiences across a complex application ecosystem.
The Expertise & Skills You Bring
- Bachelors degree in human-Computer Interaction, Interaction Design, Computer Science, or a related field (advanced degree preferred).
- Extensive experience building and scaling enterprise design systems (tokens, theming, component libraries, governance).
- Proven ability to translate UX design into reusable, systemized engineering assets adopted across large ecosystems.
- Hands-on experience with component ecosystems such as PrimeNG or equivalent UI libraries.
- Deep expertise with Figma and modern design-to-development workflows.
- Experience driving UX consistency across multi-application platforms Desktop, Web and Mobile.
- Experience with desktop interoperability platforms and standards, including FDC3, and related interop products, enabling application composition, context sharing, and crossapplication workflows would be a plus.
- Exposure to AI-enabled UX patterns, such as:
- Context-aware interfaces
- Intelligent workflows
- Personalization and adaptive UI
- Ability to influence UX standards, design system adoption, and platform direction at scale.
- Strong proficiency in HTML5, CSS3, and TypeScript, with deep expertise in building scalable, maintainable UI systems.
- Hands-on experience developing and maintaining:
- Design token systems
- Reusable UI components and patterns
- Theming and styling architectures
- Experience working with and extending component frameworks (e.g., PrimeNG) to align with enterprise UX standards.
- Strong understanding of accessibility (WCAG) and inclusive design practices.
- Ability to ensure visual and interaction consistency across diverse applications.
- Experience collaborating closely with designers to ensure fidelity between design and implementation.
- Ability to create prototypes, interaction patterns, and UX validations as needed.
- Familiarity with integrating AI tooling into the design system lifecycle, including:
- AI-assisted design generation (e.g., Figma AI, Copilot)
- Code generation and UI scaffolding
- Automated UX validation and accessibility checks
- Understanding of API-driven UI integration and shared platform services.
- Strong focus on performance, usability, and design quality
The Team
Architecture and Technology Foundation (ATF) team is a central team within Asset Management that provides ready-to-use solutions composed of standard technology stacks, development frameworks, reusable software components and services. As a member of the team, you will work on Integrated Experience Platform capabilities - web and desktop experience platforms, design systems, shared component libraries and core UI frameworks that power applications across Asset Management.
The base salary range for this position is $107,000-216,000 USD per year.Placement in the range will vary based on job responsibilities and scope, geographic location, candidates relevant experience, and other factors.
Base salary is only part of the total compensation package. Depending on the position and eligibility requirements, the offer package may also include bonus or other variable compensation.
We offer a wide range of benefits to meet your evolving needs and help you live your best life at work and at home. These benefits include comprehensive health care coverage and emotional well-being support, market-leading retirement, generous paid time off and parental leave, charitable giving employee match program, and educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career. Note, the application window closes when the position is filled or unposted.
Please be advised that Fidelitys business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.
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Benefits that balance life and work
From our fully paid parent leave to our on-site health and wellness centers, our benefits support the belief that more balance you have, the better you can achieve your goals.
Company overview
Company overview
At Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want. We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experience.
Reasonable accommodations
Fidelity will reasonably accommodate applicants with disabilities who need adjustments to participate in the application or interview process. To initiate a request for an accommodation contact the HR Accommodation Team by sending an email to accommodations@fmr.com, or by calling 800-835-5099, prompt 2, option 3.
Equal opportunity employer
Fidelity Investments is an equal opportunity employer. We believe that the most effective way to attract, develop, and retain a diverse workforce is to build an enduring culture of inclusion and belonging.
Applicant screening
At Fidelity, we value honesty, integrity, and the safety of our associates and customers within a heavily regulated industry. Certain roles may require candidates to go through a preliminary credit check during the screening process. Candidates who are presented with a Fidelity offer will need to go through a background investigation and may be asked to provide additional documentation as requested. This investigation includes but is not limited to a criminal, civil litigations and regulatory review, employment, education, and credit review (role dependent). These investigations will account for 7 years or more of history, depending on the role. Where permitted by federal or state law, Fidelity will also conduct a pre-employment drug screen, which will review for the following substances: Amphetamines, THC (marijuana), cocaine, opiates, phencyclidine.
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