Fidelity

Principal, Full Stack Engineer

Fidelity
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17 hours ago
Galway, IrelandStaff+

Responsibilities

  • Provide technical leadership and guidance to engineers across a product delivery team.
  • Drive architectural and engineering decisions aligned with enterprise standards and long-term strategy.
  • Lead delivery of complex, business-critical software solutions in large-scale environments.
  • Assess technical feasibility, delivery risks, trade-offs, assumptions, and business impacts during planning and execution.
  • Establish engineering standards, development practices, quality expectations, and common patterns across teams.
  • Lead production issue resolution, root cause analysis, and prevention activities.
  • Ensure solutions meet security, performance, accessibility, resilience, supportability, and observability standards.
  • Coach and mentor engineers at all levels and support the development of future technical leaders.
  • Champion continuous improvement in engineering practices, tooling, automation, and delivery processes.
  • Partner with product, delivery, architecture, systems analysis, quality engineering, and business stakeholders.

Requirements

  • Bachelor's degree or equivalent in a technology-related discipline.
  • 8+ years of software engineering experience, including significant experience building, delivering, and supporting enterprise applications.
  • Proven experience leading complex software delivery in large-scale environments and acting as a technical lead for business-critical applications.
  • Demonstrated ability to influence technical decisions and align engineers, product, architecture, and business stakeholders.
  • Deep hands-on expertise in Angular, TypeScript, RxJS, Signals, and enterprise-level frontend architecture.
  • Experience leading delivery in large Nx monorepo environments.
  • Strong experience with REST-based service integration, API-driven design, distributed systems, CI/CD, AWS, observability, testing, and secure software development.
  • Experience establishing unit, integration, visual, and end-to-end testing practices.
  • Experience balancing feature delivery, technical debt reduction, platform improvements, and operational priorities.
  • Experience with GitHub Copilot or similar AI-assisted engineering tools is desirable.

Tech Stack

Fidelity

About Fidelity

10,000+ employees

Fidelity Investments provides brokerage, retirement plan recordkeeping, wealth management, and asset management services to individuals, employers, advisors, and institutions, plus online trading platforms and mutual funds and ETFs. It earns fees from managing and administering assets, advisory services, and brokerage transactions. Founded in 1946 and headquartered in Boston, it is privately held and administers trillions of dollars for U.S. and global customers.

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