Senior AI Engineer, Voice & Agentic Systems

Job Description

About FIS

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

We are seeking a highly technical Senior AI Engineer to lead the development of our next-generation banking customer experience by building real-time, conversational Agentic AI voice systems from the ground up.

Above all else, your primary skill must be an insatiable curiosity to learn, deconstruct, and implement emerging systems. The generative AI landscape evolves weekly, and this role requires a relentless drive to experiment with novel architecture, ingest new research, and translate bleeding-edge concepts into production-grade banking solutions.

This role will focus on building production-grade, multi-agent solutions that combine deterministic workflow control with LLM-driven reasoning, real-time speech interaction, secure API integration, and measurable business outcomes.

The ideal candidate brings deep software engineering expertise, strong curiosity for emerging AI architectures, and the ability to translate rapidly evolving agentic AI capabilities into reliable, compliant, and scalable financial technology solutions.

What You Will Be Doing

• Architect and deliver enterprise-scale Agentic voice AI systems that combine deterministic workflow control, LLM-driven reasoning, tool orchestration, memory management, and secure API integration across regulated banking use cases.

• Build production-grade Agentic AI solutions that integrate speech-to-text, text-to-speech, LLMs, cognitive services, and backend enterprise systems to deliver natural, reliable, real-time customer interactions.

• Design agentic workflows that enable AI systems to complete complex, multi-step tasks using structured planning, function calling, tool routing, state management, and human-in-the-loop escalation where appropriate.

• Optimize real-time voice interactions for low latency, reliability, scalability, and cost efficiency through streaming architecture, token optimization, semantic caching, prompt tuning, and performance engineering.

• Deploy highly available AI services using cloud-native architectures across Azure and AWS, including Kubernetes, container platforms, serverless services, multi-region resilience, and secure DevOps practices.

• Build evaluation, experimentation, and observability frameworks to measure conversational quality, routing accuracy, latency, containment, hallucination risk, tool-call reliability, and production performance.

• Implement security, privacy, Responsible AI, and compliance guardrails to protect sensitive customer data and ensure AI systems operate within financial-services regulatory expectations.

• Troubleshoot complex issues across distributed AI systems, including network latency, model behavior, prompt failures, token-limit breaches, API errors, orchestration defects, and non-deterministic agent outcomes.

• Collaborate with product, architecture, engineering, cloud, data, security, and business teams to translate business requirements into scalable AI solutions.

• Mentor engineers in AI-first software engineering practices, including reusable component design, automated testing, defensive programming, observability, deployment discipline, and production support.

Qualifications & Tech Stack

Required Experience & Core Competencies

• Engineering Foundation: 5+ years of backend or platform engineering experience, with strong proficiency in Python, Java, C#, or .NET and a solid foundation in data structures, algorithms, APIs, and distributed systems.

• Agentic AI Systems: Hands-on experience designing or building LLM-powered applications, agentic workflows, tool/function calling, state management, retrieval patterns, and multi-step task orchestration.

• Conversational AI & Voice: Practical experience with conversational AI, speech-to-text, text-to-speech, NLP/NLU, real-time voice interaction patterns, or voice assistant platforms.

• Production AI Delivery: Experience moving AI solutions from prototype to production with attention to latency, reliability, scalability, observability, cost efficiency, and operational resilience.

• Evaluation & Quality Engineering: Experience defining evaluation methods for AI systems, including prompt testing, response quality, hallucination risk, tool-call accuracy, routing performance, A/B testing, and regression validation.

• Cloud & DevOps: Experience deploying services on Azure, AWS, or similar cloud platforms using containers, serverless architecture, CI/CD pipelines, infrastructure as code, and secure configuration practices.

• Security & Compliance Mindset: Ability to design solutions that protect sensitive data and align with privacy, security, Responsible AI, and regulated-industry expectations.

• Troubleshooting & Ownership: Strong debugging, root-cause analysis, and production support skills across complex, asynchronous, distributed, and non-deterministic systems.

• Learning Agility: Demonstrated curiosity and ability to rapidly evaluate emerging AI frameworks, models, research patterns, and architecture approaches for practical enterprise use.

Relevant Technology Exposure

• Generative AI & Model Platforms: Azure OpenAI, Azure AI Foundry, Amazon Bedrock, Amazon SageMaker, OpenAI-compatible APIs, Claude, GPT, or similar commercial and open-source LLMs.

• Agentic AI & Orchestration: Microsoft Agent Framework, Microsoft 365 Agents SDK, AutoGen, LangGraph, CrewAI, Amazon Bedrock AgentCore, Durable Functions, Step Functions, or similar workflow orchestration approaches.

• Voice & Conversational Platforms: Speech-to-text, text-to-speech, cognitive services, IVR platforms, contact center platforms, voice bots, streaming APIs, and real-time interaction frameworks.

• Cloud-Native Compute: Azure Kubernetes Service, Amazon ECS/Fargate, Amazon EKS, Azure Functions, AWS Lambda, containers, APIs, and event-driven architectures.

• Data, Search & Retrieval: Azure AI Search, vector databases, OpenSearch, DynamoDB, graph databases such as Neptune, RAG patterns, semantic search, caching, and structured data integration.

• DevOps, Observability & Security: Terraform, CI/CD tooling, Application Insights, CloudWatch, feature flags, identity/access management, secrets management, and production monitoring.

Preferred Qualifications

• Experience delivering AI, cloud, or customer engagement solutions in banking, fintech, or other regulated industries.

• Experience with contact center modernization, IVR transformation, CCaaS platforms, or enterprise customer experience systems.

• Experience taking emerging AI concepts from research or prototype into reliable, secure, and scalable production implementations.

• Advanced degree in Computer Science, Engineering, Artificial. Intelligence, or a related field, or equivalent practical experience.

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 reviewed and evaluated on a case-by-case basis.

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.