Application Support Engineer

peak6group; Belfast City District; Hybrid; GBP 40,000 - 65,000; Full time

Benefits offered by this job

Hybrid work environment

Job summary

Apex Fintech Solutions (Apex) is seeking a skilled Application Support Engineer to join our production support team in a hybrid Belfast-based role.

You will act as the primary escalation point for production issues, work with engineering to resolve complex problems, and leverage AI tooling to automate repetitive tasks while ensuring client-facing stability.

The position requires strong networking, OS, and database knowledge, plus scripting in Python or PowerShell, and a customer-focused approach.

Qualifications

• Bachelor's degree in Computer Science, IT, or a related field, or equivalent work experience.
• 3+ years in application support, preferably in financial services or trading environments.
• 2+ years in a customer-facing role.
• Solid knowledge of networking, OS (Linux/Windows), and databases (MSSQL/NoSQL).
• Hands-on experience with AI coding assistants or LLM tooling in a professional setting.
• Ability to read and modify application code in a compiled language is a plus.

Responsibilities

• Incident and escalation response; own complex production issues end to end.
• Serve as escalation point for frontline support; communicate with clients.
• Participate in major incident response with impact analysis and recommendations.
• Monitor system performance and availability; resolve issues proactively.
• Manage production access and support configuration/change management.
• Automation and AI tooling; build automations and reusable AI assets.
• Validate AI outputs before they reach clients or production.
• Collaborate with development teams on fixes and improvements; mentor others.
• Create and maintain runbooks, troubleshooting guides, and knowledge base articles.

Skills

REST APIs

Google Cloud Platform

Microservices

SQL/NoSQL

Python

PowerShell

AI tooling

Troubleshooting

Customer service

Observability

Education

Bachelor's degree in Computer Science or related field

Tools

Datadog

Jira

Zendesk

Confluence

PagerDuty

Job description

WHO WE ARE

Apex 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 BuiltIn


• WealthTech of the Year 2025 - Presented by US FinTech Awards


• The World's Top 250 Fintech Companies 2024 - Presented by CNBC

ABOUT THIS ROLE

We 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 experience


• 3+ years of experience in application support, preferably in a financial services or trading environment


• 2+ years in a customer-facing role


• Strong foundational knowledge of networking, operating systems (Linux and Windows), and databases (MSSQL and/or NoSQL)


• Hands-on experience using AI coding assistants or LLM-based tooling in a professional setting


• 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 NoSQL 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 PowerShell


• Practical skill with AI coding assistants, including the ability to break a problem into a workable prompt, iterate on the output, and recognize when the tool is wrong. Experience with Claude Code preferred


• Judgment about where automation pays off and where a process should stay manual


• Excellent problem-solving and analytical skills, with the ability to troubleshoot complex technical issues


• Strong customer service orientation and ability to communicate technical concepts to non-technical audiences


• Experience with observability and ticketing platforms such as Datadog, Jira, Zendesk, Confluence, and PagerDuty is a plus


• Familiarity with trading systems, financial markets, and regulatory requirements is a plus

Work Environment

• This role operates in a hybrid environment, in office 3 days per week.


• Participation in a shared on-call rotation is required, including nights, weekends, and market holidays.

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.