OneZero Solutions · 3 weeks ago
Application Support Engineer (Weekend Shift)
New York, New York, United States
Full-time
Onsite
Mid Level
$80K/yr - $140K/yr
3+ years expOneZero Solutions is a global software development company specializing in trading technology for financial entities. The Application Support Engineer will support customer-facing operations by responding to operational issues, planning and executing client implementations, and coordinating weekend activities with the support team.
Cyber SecurityEnterpriseRisk Management
Responsibilities
Monitor production systems and analyze alerts to determine severity, business impact, and appropriate response strategy using technical expertise and operational experience
Investigate system anomalies by correlating logs, metrics, and traces to identify root causes and determine remediation approaches
Determine and execute appropriate corrective actions based on assessment of technical risk, business impact, and available remediation options (e.g., service restarts, failovers, configuration adjustments, rollbacks)
Exercise independent judgment to balance response speed against technical risk when selecting among multiple remediation options in consultation with industry best practices
Evaluate incident severity and business impact to determine when immediate action is warranted versus when to coordinate with engineering teams for complex or systemic issues
Evaluate and enhance runbooks, operational procedures, and monitoring strategies based on operational experience and evolving system requirements
Plan and coordinate deployments by assessing risk, determining validation strategies, monitoring key performance indicators, and making go/no-go decisions during rollout phases
Plan and execute client implementations by evaluating readiness criteria, identifying technical dependencies, determining deployment sequencing, and designing validation strategies for bridging, aggregation, and reporting components
Assess client connectivity requirements and infrastructure readiness, making informed recommendations about configuration approaches and integration patterns to ensure successful production transitions
Partner with client-facing teams to assess operational risks, define technical requirements, and determine handover readiness for steady-state support
Identify recurring operational patterns and design automation solutions (scripts, tooling, monitoring enhancements) that improve efficiency and system reliability while maintaining appropriate safety controls
Analyze operational outcomes and document decisions, rationale, and results for auditability and continuous improvement
Lead post-incident analysis by evaluating contributing factors and recommending process improvements, monitoring enhancements, or architectural changes
Analyze trade execution issues, pricing anomalies, and connectivity problems by evaluating FIX/API message flows to determine whether issues require operational intervention or engineering escalation
Assess and validate client onboarding prerequisites (API credentials, connectivity parameters, spread and routing configurations), making informed judgments about deployment readiness and identifying gaps requiring resolution
Evaluate liquidity provider and platform connectivity issues, determining whether problems stem from configuration, network, or systemic factors
Respond to client inquiries by analyzing technical issues, determining appropriate solutions, and providing guidance within SLA commitments
Assess recurring client issues and technical patterns to identify opportunities for documentation improvements, process enhancements, or engineering solutions
Ensure operational activities adhere to security best practices and change management procedures, exercising judgment about appropriate controls for different types of changes
Handle sensitive client credentials and configuration data according to established security frameworks, making risk-based decisions about access and handling procedures
Exercise judgment in determining appropriate response urgency and escalation based on business impact, technical severity, and client criticality for issues including latency spikes, connectivity problems, trade discrepancies, and configuration gaps
Qualification
Required
3+ years in production operations, site reliability engineering, or technical support for mission-critical systems
Basic Linux system administration skills and networking knowledge (diagnostics, troubleshooting, performance analysis)
Experience using monitoring and observability tools to diagnose system behavior and performance issues
Demonstrated ability to analyze complex technical issues, evaluate remediation options, and make sound decisions under time pressure
Clear written and verbal communication skills for incident documentation, client interaction, and cross-team collaboration
Scripting (Python, Bash, PowerShell or similar) for simple automation and reporting
Direct experience supporting or onboarding technical client integrations (readiness checks, configuration validation, data flow verification)
Familiarity with bridging, aggregation, and reporting integration patterns (or demonstrable ability to learn them rapidly)
Preferred
Exposure to real‑time data or financial technology environments
Container platform familiarity (Docker, for example, ECS, or Kubernetes)
Streaming / messaging systems (Kafka, Kinesis, or similar)
Basic performance troubleshooting (resource usage, latency, responsiveness patterns)
Foundational security hygiene (least privilege, credential handling best practices)
VMware virtualization exposure
Administering MetaTrader (MT4/MT5) servers or related components
Advanced PowerShell or broader programming (Go, Java, .NET) for tooling enhancements
Supporting financial services clients in production triage contexts
Knowledge of core financial markets concepts (pricing, spreads, order flow)
Brokerage middle or back office operational experience (trade capture, reconciliation, reporting)
Experience automating repetitive operational tasks (scripted runbook wrappers, small tooling improvements)
Company
OneZero Solutions
OneZero Solutions specializes in cyber operations, enterprise services, virtual Ciso, cyber risk management & CMMC-pro.
201-500 employees
Funding
Current Stage
Growth StageLeadership Team
Al Sowers
Founder and President
Bob Burnett
Chief Growth Officer
Recent News
Washington Technology
2025-08-30
2024-10-26
Company data provided by crunchbase