Senior Applications Engineer

About Monet Bank:
Monet Bank is pioneering the future of banking and money movement — faster, more efficient, and built for the modern financial ecosystem. We are an essential bridge to the next generation of banking and payments infrastructure. As a profitable, well-capitalized Texas state-chartered bank and FDIC-Insured — backed by the full faith and credit of the U.S. Government — Monet combines the strength and stability of traditional banking with forward-thinking financial technology innovation.

We recognize the fundamental inefficiencies in legacy payment networks and are building a strong team to thoughtfully challenge assumptions and pursue smarter, more scalable solutions. Our focus is on modern banking services that empower merchants to reclaim margins, enable fintechs to operate cross-border at scale, and support technology platforms in embedding seamless financial services. If you are motivated by building secure, intentional, and future-ready banking infrastructure, we invite you to explore opportunities with Monet Bank.

Job Description The Senior Application Engineer – Banking Systems is responsible for the operational stability, maintenance, and support of critical banking software applications, including the FIS core banking platform, Q2 digital banking system, and the MANTL account origination platform. In this senior role, you will manage and maintain core banking and supporting software solutions by collaborating with internal IT teams, business units, and vendors to install, update/patch, secure, monitor, troubleshoot, and optimize these application environments.

A key focus is ensuring high availability of customer-facing digital banking services (online and mobile banking) through proactive monitoring, timely incident resolution, and continuity planning. This position also leads efforts in integrating new features or third-party solutions into the banking systems and guarantees that upgrades or changes meet technical requirements without disrupting existing services. Strong technical acumen, problem-solving abilities, and effective communication skills are essential for success in this role.

This is a full-time, permanent position based on-site in Plano, TX, working closely with both business stakeholders and technology vendors to support the bank’s core and digital platforms.

• System Patching & Upgrades:
  Plan and execute regular maintenance activities, including applying vendor patches and software upgrades for the core banking system (FIS) and related platforms. Coordinate testing and rollout of updates to ensure minimal downtime and compliance with change management procedures. Continuously install and update application components as needed to keep systems current and secure.
• User Access Management & Security:
  Administer user accounts, roles, and access permissions across FIS core, Q2, and MANTL systems. Ensure proper role-based access controls are in place and conduct periodic access reviews to maintain compliance with bank policies and regulatory standards. Enforce data security and privacy controls within these applications, aligning with IT policies and security standards required in the banking sector.
• Integration Management:
  Oversee and support integrations between the core banking platform and auxiliary systems such as the Q2 digital banking platform and the MANTL origination software. Ensure new software integrations or third-party interfaces meet functional requirements and do not disrupt existing processes. Work with vendors and internal teams to achieve seamless data flow – for example, enabling MANTL’s account origination to smoothly integrate with Q2 online banking for a seamless onboarding experience.
  
  Develop an understanding of file transfer processes, APIs, and data mappings between systems to troubleshoot and optimize integrations.
• Performance Tuning & Monitoring:
  Continuously monitor application performance, system logs, and interfaces to detect and prevent service disruptions proactively. Perform application configuration adjustments and tuning to optimize system performance and response times. Establish routine checks and use…