Senior Full Stack Engineer – AI/LLM Platform
5 days onsite Pittsburgh, PA / Farmers Branch, TX / Strongsville, OH / Birmingham, AL / Phoenix, AZ Contract to Hire
JOB DESCRIPTION
The Software Engineer Sr is responsible for designing, developing, and supporting scalable software solutions for Intelligent Automation initiatives leveraging AI technologies. This role focuses on building an Agentic AI Platform for internal enterprise users using Python, Large Language Models (LLMs), and Retrieval-Augmented Generation (RAG) technologies. The ideal candidate will combine strong full-stack engineering capabilities with modern AI/ML system design experience to deliver intelligent, scalable, and data-aware applications. The role requires close collaboration with product managers, data scientists, business teams, and engineering partners to deliver enterprise-grade AI-powered solutions.
Must Have
Ability to design fault-tolerant production systems
Agile development experience
APIs and API platform engineering
Large Language Model (LLM) fundamentals
Strong Python development experience
Retrieval-Augmented Generation (RAG)
Strong experience building production-grade services using Python and/or Java
Experience integrating LLMs or AI services into enterprise applications
Experience designing and operating API-based platforms
Systems design and engineering expertise
Nice To Have
Experience with relational databases
Java
Jira
Microsoft Office
Key Responsibilities
AI Platform Engineering
Design and develop scalable AI-powered applications using Python and modern software engineering practices
Build and support Agentic AI platform capabilities for enterprise internal users
Integrate Large Language Models (LLMs) and AI services into enterprise applications
Develop Retrieval-Augmented Generation (RAG) pipelines and intelligent data-aware systems
Implement scalable API-based services and AI integration platforms
Design resilient and fault-tolerant distributed systems for production environments
Software Development & Engineering
Modify existing software to correct errors, improve performance, and upgrade functionality
Design and develop software systems using scientific analysis and engineering best practices
Create scalable backend services and APIs supporting enterprise platforms
Support full software development lifecycle activities including analysis, development, testing, deployment, and support
Troubleshoot system issues and implement production improvements as needed
Develop and execute software testing and validation procedures
Systems Design & Architecture
Design secure, scalable, and maintainable enterprise solutions
Build production-grade services capable of supporting enterprise-scale workloads
Define system integrations and API communication patterns
Collaborate with engineering teams to establish technical specifications and performance requirements
Support operational excellence, monitoring, and continuous improvement initiatives
Cross-Functional Collaboration
Work closely with product managers, data scientists, designers, QA teams, and business partners
Participate in Agile ceremonies and engineering planning activities
Communicate technical solutions effectively across technical and non-technical teams
Support enterprise initiatives impacting organization-wide AI adoption and automation
Preferred / Flex Skills
Java development experience
Experience with relational databases and SQL
Familiarity with Jira and Agile project tracking tools
Exposure to enterprise AI/ML platforms and intelligent automation solutions
Financial Services or Banking industry experience preferred
Soft Skills
Strong written and verbal communication skills
Excellent problem-solving and analytical abilities
Ability to work independently and collaboratively within teams
Strong time management and multitasking capabilities
Adaptability in fast-paced enterprise environments
Education
Bachelor's Degree in Computer Science, Engineering, or related field preferred. Equivalent work experience will be considered.