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Fidelity Investments

Manages investments and workplace retirement plans

Principal Full Stack Engineer

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeGalway, IrelandNo salary listedIn-person

About the Job

Requirements

  • Bachelor's degree or equivalent in a technology-related discipline.
  • At least 8 years of software engineering experience, including significant experience building, delivering, and supporting enterprise applications.
  • Proven experience leading the delivery of complex software solutions in large-scale environments.
  • Experience acting as a technical lead for teams delivering business-critical applications.
  • Demonstrated ability to influence technical decisions and drive alignment across engineers, product, architecture, and business stakeholders.
  • Experience balancing feature delivery, technical debt reduction, platform improvements, and operational priorities.
  • Strong understanding of modern application architecture patterns and cloud-native design principles.
  • Hands-on expertise in Angular, TypeScript, RxJS, Signals, and enterprise-level front-end architecture.
  • Experience leading delivery in large Nx/monorepo environments.
  • Strong experience with REST-based service integration and API-driven design.
  • Experience with distributed systems, CI/CD, AWS, observability, testing, and secure software development.
  • Experience establishing quality practices across unit, integration, visual, and end-to-end testing.

Responsibilities

  • Provide day-to-day technical leadership and guidance to engineers across the product delivery team.
  • Drive engineering decisions aligned with architectural direction.
  • Partner with Architects to evaluate solution options and contribute to long-term strategy.
  • Identify and proactively manage technical, delivery, and operational risks.
  • Support engineering and product leadership in technical trade-off decisions.
  • Establish engineering standards, development practices, and quality expectations.
  • Reduce duplication across applications and delivery teams through common patterns.
  • Drive technical alignment across delivery teams, applications, and partner organisations.
  • Identify opportunities to simplify architecture, reduce technical debt, and modernise legacy implementations.
  • Provide technical decision leadership while ensuring alignment with enterprise standards.
  • Lead production issue resolution, root cause analysis, and prevention activities.
  • Ensure solutions meet security, performance, accessibility, resilience, supportability, and observability standards.
  • Partner with the Engineering Delivery Manager to assess technical feasibility and delivery risks.
  • Provide early technical feasibility assessment during roadmap planning and initiative shaping.
  • Collaborate with Product Managers, Product Analysts, and Systems Analysts on scope and requirements.
  • Provide clear visibility of technical risks, assumptions, trade-offs, and business impacts.
  • Articulate recommendations and options to business, product, and technology stakeholders.
  • Coach and mentor engineers at all levels and support the development of future technical leaders.
  • Champion continuous improvement across engineering practices, tooling, automation, and delivery processes.
  • Champion responsible adoption of AI-assisted engineering capabilities to improve quality and productivity.

Desired Qualifications

  • Experience using GitHub Copilot or similar AI-assisted engineering tools.

About the Company

Fidelity Investments

Manages investments and workplace retirement plans

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
$250.4B
Headquarters
Boston, MA
Founded
1946

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