Senior Lead Full Stack Software Engineer

Location: IRL DUBL 11-12

Time Type: Full time

Job Description

FIS is a global leader in financial technology, powering mission‑critical systems that help the world pay, bank, and invest. If you’re passionate about advancing the future of fintech and building transformative products used across the money lifecycle, we’d like to ask you: Are you FIS?

About the team:

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.

What you will be doing:

• Translate complex or ambiguous requirements into clean, maintainable, scalable, and well documented code.
• Design, develop, and maintain software applications and systems that provide value to end-users.
• Implement AI‑powered capabilities in collaboration with product and principal engineers.
• Implement and optimize algorithms, data usage, and cloud services for latency, availability, and cost.
• Debug and troubleshoot software issues to ensure business continuity, and a high bar for end-user experience.
• Raise the engineering bar via rigorous code and design reviews that enforce maintainability, security, performance, and AI safety
• Write unit & integration tests, implement observability, and comply with best practices for builds and deployment to ensure the quality and reliability of our platform.
• Provide live on-call support by participating in the team on-call rotation and owning production issues from root cause analysis to resolution to future prevention.
• Partner with cross-functional teams (engineering, product, design, security, compliance etc.) to bring ideas to life
• Mentor junior and mid‑level engineers; contribute to team knowledge sharing and AI upskilling.

What you will need:

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

Professional and personal development resources

Opportunities to volunteer and support charities

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.

Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

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