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PEAK6

Application Support Engineer

PEAK6

. Serve as the escalation point for frontline support, owning complex production issues from triage through resolution and client communication .

Posted 9/21/2026full-timeBelfast • United KingdomMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in application support with a strong focus on incident management, system performance monitoring, and AI tooling for automation. Proficient in networking, operating systems, and database management, with a commitment to customer service and effective communication.

Highest-signal resume keywords
Application SupportAI Tooling ExperienceNetworking KnowledgeSQL and NoSQL ProficiencyCustomer-Facing Role Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Application SupportAI ToolingNetworkingSQLNoSQLPython ScriptingPowerShell ScriptingREST APIsLinux Operating SystemWindows Operating System
Soft Skills
Problem-SolvingAnalytical SkillsCustomer Service OrientationCommunication Skills
Tools & Technologies
Google Cloud PlatformDatadogJiraZendeskConfluencePagerDuty
Industry Keywords
Financial ServicesTrading EnvironmentRegulatory RequirementsObservability

Tech Stack

Tools & technologies
CloudDNSGoogle Cloud PlatformLinuxMicroservicesMongoDBNoSQLPostgresPythonSQLTCP/IP

About the role

Key responsibilities & impact
  • Serve as the escalation point for frontline support, owning complex production issues 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
  • Use AI tooling to accelerate investigation, including log analysis, data extraction, and issue reproduction
  • Build and maintain automations and reusable AI assets for other engineers
  • Validate AI-generated output before it reaches a client, ticket, or production
  • Collaborate with development teams on fixes and improvements
  • Mentor newer engineers on the team
  • Create and maintain runbooks, troubleshooting guides, and knowledge base articles

Requirements

What you’ll need
  • 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, Linux and Windows operating systems, and MSSQL and/or NoSQL databases
  • 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
  • Strong understanding of REST APIs, Google Cloud Platform, and microservices architecture
  • Proficiency in SQL and NoSQL databases, including MSSQL, MongoDB, and 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 Claude Code preferred
  • Judgment about where automation pays off and where a process should stay manual
  • Excellent problem-solving and analytical skills
  • 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

Benefits

Comp & perks
  • Annual bonus
  • 28 days of annual leave plus 10 Northern Ireland national holidays
  • Training and development budget
  • Pension matched up to 7%
  • Private health insurance for medical, dental, and optical care
  • Life insurance
  • Flexible working hours
  • Parental leave
  • Hybrid work schedule with flexibility to partially work from home
  • Modern city center office
  • Monthly catered lunches
  • Unlimited drinks and snacks
  • Hackathon events
  • Poker tournaments
  • Charitable matching gift program