Software Developer III — AI-Driven Production Systems

Old National Bank; Chicago (IL); Presencial; USD 98.000 - 199.000; Jornada completa

Descripción de la vacante

Old National Bank is seeking a Software Developer III to deliver complex features and small systems within our Product Engineering organization. You will harden prototypes into production-ready software and shape how the team applies AI-assisted workflows to ship secure, reliable code.

This is an experienced individual-contributor role; you may mentor peers and lead design and code reviews, while people management remains elsewhere. Strong engineering fundamentals and collaboration are essential.

Formación

• Bachelor's degree or equivalent practical experience in Computer Science or related field.
• 5-8 years of professional software engineering experience owning production systems.
• Strong proficiency in two or more of Go, Python, and TypeScript, including API design and cloud-native development.
• Experience with AWS, CI/CD, and infrastructure-as-code (Terraform).
• Demonstrated ability to build secure, reliable systems and to raise the quality bar for a team through reviews and mentorship.

Responsabilidades

• Convert business intent and specifications into shipped features meet functional, non-functional, and compliance requirements, increasingly using agentic and AI-assisted workflows.
• Write and review high-quality code when establishing patterns, building secure components, integrating services, or ensuring AI-produced code meets standards.
• Ensure both human-written and AI-assisted code is validated through automated testing and continuous verification to maintain safety and correctness.
• Optimize for outcomes: improve cycle time, reliability/SLOs, quality, and delivery economics; apply engineering effort where it provides the most leverage or safety.
• Identify ambiguity, dependencies, and operational risk early; harden prototypes into resilient production systems.
• Follow the bank's change-management discipline - ship changes to production through documented review and approval, respecting segregation of duties and auditability.

Conocimientos

Go

Python

TypeScript

Educación

Bachelor's degree in Computer Science or related field

Herramientas

AWS

Terraform

CI/CD

Descripción del empleo

Old National Bank is seeking a Software Developer III to deliver complex features and small systems within our Product Engineering organization. You will harden prototypes into production-ready software and shape how the team applies AI-assisted workflows to ship secure, reliable code.

This is an experienced individual-contributor role; you may mentor peers and lead design and code reviews, while people management remains elsewhere. Strong engineering fundamentals and collaboration are essential.