Senior Application Engineer

Scoular is seeking a Senior Application Engineer to support and modernize critical enterprise systems, including a large-scale Commodity Trading and Risk Management (CTRM) platform. This role is well suited for a senior back‑end engineer who enjoys working on complex, high‑impact systems and contributing to the modernization of long‑lived platforms using AI‑assisted development and modern integration patterns.

Success in this role is driven by strong engineering fundamentals, deep SQL expertise, and experience building and supporting reliable enterprise systems.

What You'll Do

* Design, enhance, and modernize enterprise business applications that support financial and transactional workflows.

* Develop and maintain back‑end services and APIs that integrate with internal and external platforms.

* Leverage AI‑assisted development tools to accelerate understanding of existing systems, refactor legacy code, and deliver high‑quality, maintainable solutions.

* Work extensively with relational databases and SQL-driven business logic.

* Participate in production support, incident response, and scheduled on‑call rotations to ensure system reliability.

* Partner with business stakeholders, Digital teams, and IT colleagues to deliver practical, business‑aligned solutions.

* Contribute to modernization initiatives across IBM i and adjacent enterprise platforms.

* 7+ years of experience building enterprise, back‑end, or highly transactional systems.

* Strong SQL expertise, including complex queries, performance tuning, and relational data modeling.

* Proficiency in at least one back‑end programming language such as Java, C#, Python, or similar enterprise technologies.

* Experience designing and consuming RESTful APIs and working with JSON/XML.

* Demonstrated ability to troubleshoot, debug, and support production systems.

* Experience working in environments with formal change management and release processes.

* Strong communication skills with the ability to work effectively with both technical and non‑technical partners.

Preferred Experience:

* IBM i (AS400) experience, including RPG, CL, or DB2.

* Experience supporting financial, trading, or highly transactional business systems.

* Familiarity with AI‑assisted development tools for code generation, refactoring, testing, or documentation.

* Exposure to IBM i modernization tools or web‑enablement frameworks.

* Experience creating technical documentation or system design materials.