Application Developer Lead

The Application Development Lead - Integration leads delivery of secure, reliable integration services, primarily in Python on AWS. The role combines hands-on engineering leadership with integration architecture, platform/operational excellence, and stakeholder alignment to ensure services are discoverable, easy to consume, and production-ready., Key Accountability 1: Platform and Service Engineering Excellence

• Own intent-to-outcome delivery by translating requirements and prototypes into production features that meet platform, reliability, and operational standards.
• Deliver high-quality, production-ready services (primarily in Python) using strong engineering discipline (design/code reviews, testing, maintainable patterns) while coaching the team to continuously raise the technical bar.
• Platform engineering to design and operate AWS cloud-native runtimes using GitOps CI/CD and Terraform, including observability (logs, metrics, traces) and resilient deployment patterns to ensure reliable, cost-effective operations at scale.

Key Accountability 2: Integration Architecture, Security and Operational Readiness

• Define and govern integration architecture by establishing patterns, standards, domain boundaries, and interface contracts to ensure consistency, interoperability (including partners/vendors), and long-term maintainability.
• Enable service discovery and adoption through a service catalog, consumer-ready documentation, and self-service onboarding/registration.
• Embed security, compliance, and data protection controls into design and delivery in partnership with risk and security, reducing operational and regulatory risk.
• Proactively surface ambiguity, dependencies, and operational risks, and drive mitigations that enable smooth releases and stable production operations.

Key Accountability 3: Cross Functional Leadership & Decision-Making

• Provide cross-functional leadership by making timely decisions, driving alignment, and facilitating productive discussions across engineering, architecture, security, and business teams.
• Clearly communicate decisions, risks, tradeoffs, and delivery readiness to both technical teams and senior business/leadership stakeholders.

Key Competencies for Position

• Develops Talent - You Own You -You own your development and career. Actively assesses self by leveraging feedback to enhance knowledge, skills and behavior. Leverages own strengths and those of team members to meet individual and team goals supporting both internal and external client needs. Continuously develops self for current and future roles.
• Promotes Change - Actively seeks information to understand the rationale, implications, and impact for changes. Remains agile by quickly modifying daily behavior, leveraging resources, and trying new approaches to effectively embrace change. Willing to act quickly, learn and adjust as needed. Identifies and recommends changes to leadership to improve performance. Aligns activities to meet individual, team and organizational goals
• Strategy in Action - Breaks down larger goals into smaller achievable goals and communicates how they are contributing to the broader goal. Actively seeks to understand factors and trends that may influence role. Anticipates risks and develops contingency plans to manage risks. Identifies opportunities for improvement and seeks insights from other sources to generate potential solutions. Aligns activities to meet individual, team and organizational goals.
• Compelling Communication - Effectively and transparently shares information and ideas with others. Tailors the delivery of communication in a way that engages the audience and that is easy to understand and retain. Unites others towards common goal. Asks for others' opinions and ideas and listens actively to gain their support when clarifying expectations, agreeing on a solution and checking for satisfaction.
• Makes Decisions & Solves Problems - Takes ownership of the problem while collaborating with others on a resolution with an appropriate level of urgency. Collaborates and seeks to understand the root causes of problems. Evaluates the implications of new information or events and recommends solutions using decisions that are sound based on what is known at the time. Takes action that is consistent with available facts, constraints and probable consequences.
• Delights Clients -. Passionately serves internal/external clients with excellence. Maintains a growth mindset staying current with developments and trends in areas of expertise influencing client satisfaction both internally and externally. Understands data, metrics and/or financial information, and how they tie to client satisfaction and business outcomes related to position, client and/or team. Nurtures client relationships by listening, prioritizing, and acting responsibly to meet client needs, mitigate risk and add shareholder value.
• Leads Inclusively - Seeks diverse relationships to learn more about people from other cultures and backgrounds. Gathers information with curiosity and humility to learn more about people from other cultures and backgrounds including impacts on norms, behaviors and expectations (e.g., social norms, decision-making approaches, and preferences) Advocates for diverse perspectives. Continually examines own biases and behaviors to avoid stereotypical responses.
• Personifies ONB Culture - Consistently demonstrates Old National's culture and values in daily interactions. Models our values -how we show up in the workplace. Places the organization's goals before individual or team goals. Demonstrates the desire to be part of something beyond themselves by investing time, heart, and expertise to help clients and communities thrive.

• 7+ years of progressively responsible, hands-on software engineering experience delivering production systems.
• Bachelor's degree in Computer Science, Information Systems, Engineering, or equivalent practical experience.
• Strong Python proficiency building and operating production services, including testing, code quality, and performance considerations.
• Experience designing and delivering integrations across patterns (e.g., synchronous service-to-service, event-driven, batch/file-based, messaging/queues) with clear interface and data contracts.
• AWS experience, including cloud-native approaches (serverless preferred) and operational best practices.
• Infrastructure-as-code and delivery automation experience, including Terraform and GitOps/CI/CD practices.
• Ability to assess both human-written and AI-generated code for correctness, safety/security, and maintainability.
• Demonstrated technical leadership: leading through influence, driving alignment, mentoring/coaching engineers, and guiding design/code reviews.
• Excellent communication skills with both technical and non-technical stakeholders, including the ability to explain tradeoffs, risks, and decisions clearly.

We continually seek highly motivated and talented individuals as our people are critical to our success. In return, we offer competitive compensation with our salary and incentive program, in addition to medical, dental, and vision insurance. 401K, continuing education opportunities and an employee assistance program are also included in our benefit suite. Old National also offers a variety of Impact Network Groups led by team members who are passionate about driving engagement, creating awareness of diverse backgrounds and experiences, and building inclusion across the organization. We offer a unique opportunity to join a growing, community and client-focused company that is firmly rooted in its core values.

Old National Bank has been serving clients and communities since 1834. With over $70 billion in total assets, we are a regional powerhouse deeply rooted in the communities we serve. As a trusted partner, we thrive on helping our clients achieve their goals and dreams, and we are committed to social responsibility and investing in our communities through volunteering and charitable giving.