Senior Lead Full Stack Software Engineer

External

Fis · Dubl 11-12, Ireland

Full-timeOn-siteToday

AWSCI/CDComplianceCross-functional CollaborationEncryptionForecasting

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About the role

Revenue Connect is FIS's next‑gen cloud platform reinventing commercial pricing and billing for banks of all sizes. We're building from the ground up using AWS, modern UI/UX patterns, and event‑driven, API‑first services to eliminate decades of technical debt and deliver the speed, accuracy, and transparency banks expect. As a Senior Lead / Specialist Engineer , you'll be hands‑on in designing, building, and operating core distributed services. You'll contribute to AI‑powered features, influence architecture within the team, mentor engineers, and help accelerate delivery as we extend into new deposit‑core integrations and scale toward hundreds of financial institutions. In 2026, Revenue Connect is embedding AI throughout the product - from generative statement insights to anomaly detection and pricing optimization. You will implement and integrate these AI capabilities , advocate for safe and governed usage of models and data and help upskill the team in AI‑accelerated engineering practices.

Requirements

At a minimum, a Bachelor's in CS or equivalent experience. Typical qualifications for the role are 7 or more years of relevant professional experience or a combination of work experience and advanced education.

Proven experience shipping AI‑enabled features in production: model‑driven decisions, anomaly detection, forecasting/optimization, or LLM‑powered experiences-plus MLOps practices

Proficiency in at least one modern development framework / language (e.g., Java).

Excellent communication and cross-functional collaboration skills to thrive in a fast-paced environment.

Experience leading projects from architectural design to production, while setting and maintaining high standards of technical excellence across your team.

Expertise in at least one area relevant to our cloud-based financial platform (e.g., fintech, distributed systems, databases, security, or front-end).

Security, privacy, and compliance acumen for financial data (encryption, least‑privilege, secrets management, auditability) and AI safety

Experience with version control systems (Git), and DevOps practices like continuous integration and continuous delivery (CI/CD).

Leadership and communication. Track record leading projects from architecture to production, influencing cross‑functional stakeholders, and mentoring engineers to raise the bar.

Added bonus if you have:

Proven ability to self-direct your technical work and scope projects effectively.

Experience leading and mentoring junior engineers.

Excellent communication and collaboration skills to influence both technical and non-technical stakeholders.

Deep expertise in at least one area relevant to our cloud-based financial platform (e.g., fintech, distributed systems, databases, security, or front-end).

Proficiency in modern development frameworks and languages. (e.g., Java).

A strong understanding of security best practices for building enterprise applications.

Prior work in fintech or billing/analysis systems, or large‑scale anomaly detection/optimization problems.

Hands‑on experience integrating LLMs, RAG pipelines, model evaluation, or anomaly detection into production systems.

What we offer you:

At FIS, you can learn, grow and make an impact in your career. Our benefits include:

Flexible and creative work environment

Diverse and collaborative atmosphere

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Senior Lead Full Stack Software Engineer

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