Application Support Engineer

WHO WE AREApex Fintech Solutions (Apex) powers innovation and the future of digital wealth management by building tech-forward solutions that help simplify, automate, and facilitate access to financial markets for all. Our robust suite of fintech software enables us to support clients such as Stash, Betterment, SoFi, Webull, and eToro, amongst many others; collectively, Apex powers access to the stock market for over 22+ million end customers.
At Apex, we are changing how the securities industry operates by reinventing the status quo, which was manual, slow, and accessible only by the ultra-wealthy. We're digitizing and democratizing systems so that everyone has an opportunity to invest. When you're at Apex, you drive this change. You're part of a global team with a clear vision: to be the trusted technology that powers the digital economy.

Our offices in Austin, Dallas, Chicago, New York, Portland, Belfast, and Manila are home to over 1,000 employees. Together, we’re shaping the future of financial innovation. Embrace change. Solve big. Win together. And be G.R.E.A.T. — grit, results, empathy, accountability, and teamwork — with Apex. We’re proud to be recognized for the innovative work we do, the purpose-driven nature of our work, and the collaborative culture we’ve created.

Here are just a few of the many awards we’ve recently received:
Best Places to Work 2026, 2025, 2024, 2023 - Presented by Built In Wealth Tech of the Year 2025 - Presented by US Fin Tech Awards The World’s Top 250 Fintech Companies 2024 - Presented by CNBC ABOUT THIS ROLEWe are seeking a skilled and customer-oriented Application Support Engineer to join our production support team. In this role you will act as the primary escalation point for production issues, work alongside engineering to resolve complex problems, and use AI tooling to remove repetitive work.

Duties/Responsibilities Incident and Escalation Response Serve as the escalation point for frontline support, owning complex production issues end to end from triage through resolution and client communication

Participate in major incident response, providing impact analysis and actionable recommendations

Monitor system performance and availability, resolving issues before they impact clients

Manage production access and support configuration and change management activities

Automation and AI Tooling Use AI tooling to accelerate investigation, including log analysis, data extraction, and issue reproduction

Build and maintain automations and reusable AI assets that other engineers can run Validate AI-generated output before it reaches a client, a ticket, or production

Collaboration and Knowledge Sharing Collaborate with development teams on fixes and improvements, and mentor newer engineers on the team Create and maintain runbooks, troubleshooting guides, and knowledge base articles

Education and/or Experience Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent work experience3+ years of experience in application support, preferably in a financial services or trading environment2+ years in a customer-facing role Strong foundational knowledge of networking, operating systems (Linux and Windows), and databases (MSSQL and/or No

SQL)
Ability to read and modify application code in a compiled language preferred

Required Skills/Abilities Strong understanding of REST APIs, Google Cloud Platform, and microservices architecture

Proficiency in SQL and No

SQL databases (MSSQL, MongoDB, Postgres)
Solid networking knowledge, including TCP/IP, DNS, and network security concepts

Experience with Linux and Windows operating systems

Strong scripting abilities in Python and Power Shell Practical  skill with AI coding assistants, including the…