Principal Software Engineer, Platform Adoption and Migration

fis; Florida; On-site; USD 190,000 - 240,000; Full time

Benefits offered by this job

Banking/FinServ experience

Developer relations background

Codemods tooling

License renewal experience

Frontend observability

Job summary

FIS is seeking a Principal Engineer to lead adoption of a modern Frontend Platform, driving migrations from legacy Angular to React and a new design system across global teams. You will own the technical relationship with consuming teams, shape the platform roadmap, and reduce legacy costs while accelerating adoption.

You will guide a global engineering team across US and India time zones, ensuring secure, scalable, and well-documented frontend tooling and governance.

Qualifications

• Extensive experience building production-grade web applications at enterprise scale.
• Advanced expertise in Angular or React, with working depth in the other.
• Experience leading large framework migrations or modernization across many teams.
• Experience with design systems, component libraries or shared frontend platforms that other teams depend on.
• Proven technical leadership, including leading distributed or offshore teams.
• Clear communication with engineers, product managers and executives, and the ability to influence without authority.
• Hands-on experience with AI coding tools.
• Degree in computer science, engineering or a related field, or equivalent practical experience.

Responsibilities

• Lead the migration of product teams from legacy Angular frameworks to React and the new design system.
• Build migration playbooks, codemods, reference implementations and AI-assisted tooling that let teams move with less effort.
• Own the technical relationship with consuming teams: intake, triage, escalation and service levels during US business hours.
• Make adoption and support load visible with metrics, and use them to shape the platform roadmap.
• Lead a global engineering team spanning US and India time zones.
• Keep legacy frameworks secure and stable until their consumers migrate, then retire them.
• Rationalize shared frontend tooling and enterprise licenses, such as AG Grid, across FIS.
• Resolve complex production, integration, performance and security issues in consuming applications.
• Turn recurring issues into platform fixes, documentation and self-service tooling.
• Partner with engineering, product, security and leadership across FIS to set migration priorities and timelines.
• Coach engineers on React, modern frontend engineering and AI-assisted development.

Skills

Angular or React expertise

Migration leadership

Design systems

Technical leadership

Clear communication

AI-assisted development

Education

Degree in CS/Engineering or related

Tools

AG Grid

Codemods/AST tooling

Frontend tooling/licenses

Job description

Job Description

At FIS, our technology and our people are moving forward. We advance the way the world pays, banks and invests. We believe in building inclusive, diverse teams. Together, we innovate to help our colleagues, clients and communities succeed. If you're ready to grow your career and make an impact in fintech, we have one question: Are you FIS?

About the Role

You will lead adoption of the Frontend Platform that product teams across FIS build on: the design systems, frameworks and shared components behind thousands of screens in banking, payments and capital markets. You will own the path that moves teams off legacy frameworks and onto the new platform, and the technical relationship with every team that depends on it. As a principal engineer, you will plan and drive large-scale migrations, retire legacy technology and its cost, and turn what you learn from consuming teams into a platform that is easier to adopt. Success means teams move to the new platform faster, legacy and licensing costs come down, and teams across FIS trust the platform.

What You Will Be Doing

• Lead the migration of product teams across FIS from legacy Angular frameworks to React and the new design system.
• Build migration playbooks, codemods, reference implementations and AI-assisted tooling that let teams move with less effort.
• Own the technical relationship with consuming teams: intake, triage, escalation and service levels during US business hours.
• Make adoption and support load visible with metrics, and use them to shape the platform roadmap.
• Lead a global engineering team spanning US and India time zones.
• Keep legacy frameworks secure and stable until their consumers migrate, then retire them.
• Rationalize shared frontend tooling and enterprise licenses, such as AG Grid, across FIS.
• Resolve complex production, integration, performance and security issues in consuming applications.
• Turn recurring issues into platform fixes, documentation and self-service tooling.
• Partner with engineering, product, security and leadership across FIS to set migration priorities and timelines.
• Coach engineers on React, modern frontend engineering and AI-assisted development.

What You Will Need

• Extensive experience building production-grade web applications at enterprise scale.
• Advanced expertise in Angular or React, with working depth in the other.
• Experience leading large framework migrations or modernization efforts across many teams.
• Experience with design systems, component libraries or shared frontend platforms that other teams depend on.
• Proven technical leadership, including leading distributed or offshore teams.
• Clear communication with engineers, product managers and executives, and the ability to influence without authority.
• Hands-on experience with AI coding tools and a point of view on how they change migration and maintenance work.
• Degree in computer science, engineering or a related field, or equivalent practical experience.

Added Bonus If You Have

• Experience in banking, payments or financial services.
• Background in developer relations, solutions architecture or customer engineering.
• Experience with automated code transformation (codemods, AST tooling) at scale.
• Experience managing enterprise software licenses and vendor renewals.
• Familiarity with frontend observability, application security scanning and dependency management.
• Familiarity with secure software development practices for regulated financial environments.

What We Offer You

• Opportunities to make an impact in fintech
• Personal and professional learning
• Inclusive, diverse work environment
• Resources to give back to your community
• Competitive salary and benefits

Privacy Statement

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice .

EEOC Statement

FIS is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, marital status, genetic information, national origin, disability, veteran status, and other protected characteristics. The EEO is the Law poster is available here supplement document available here

For positions located in the US, the following conditions apply. If you are made a conditional offer of employment, you will be required to undergo a drug test. ADA Disclaimer: In developing this job description care was taken to include all competencies needed to successfully perform in this position. However, for Americans with Disabilities Act (ADA) purposes, the essential functions of the job may or may not have been described for purposes of ADA reasonable accommodation. All reasonable accommodation requests will be revie