Technical Support Specialist at Five9 resolving complex technical issues for customer accounts. Collaborating with cross-functional teams and handling backend technologies in a hybrid work environment.
Responsibilities
Diagnose and resolve escalated cases requiring deep knowledge of .NET Core, ASP.NET, MVC, Web API, microservices, WebSockets, distributed systems, and backend integrations.
Perform code-level analysis, including interpretation of C#, .NET logic, service dependencies, object models, and API flows.
Troubleshoot across the full stack: backend services, API layers, client–server communication, SQL queries, cloud components, and containerized applications.
Reproduce complex scenarios, isolate defects, evaluate performance issues, and validate engineering patches or workarounds.
Apply working knowledge of C#, .NET, JavaScript, TypeScript, SQL, and other relevant programming languages to diagnose technical issues.
Understand software architecture, including SOLID principles, design patterns, multithreading, and asynchronous programming.
Analyze stack traces, logs, exceptions, and code behaviors to identify underlying problems.
Utilize tools such as Postman, Fiddler, Wireshark, Splunk, Kibana, CloudWatch, and debugger utilities.
Partner with Engineering teams to provide complete defect reports with reproducible steps, environment details, logs, and recommended hypotheses.
Participate in triage meetings, RCA discussions, sprint reviews, and pre-release validation activities.
Work closely with Product, Cloud Ops, Security, and QA to maintain product stability and drive continuous improvement.
Act as a technical liaison for key customer accounts needing elevated, specialized support.
Provide clear explanations of root causes, product behavior, architectural constraints, and long-term remediation plans.
Anticipate potential issues by analyzing trends and proactively recommending configuration, usage, or architectural optimizations.
Requirements
4–8 years of experience in Technical Support, Application Support, Escalation Engineering, Dev Support, or related advanced technical role.
Strong hands-on experience with:
HTTP
NET, .NET Core, MVC, Web API
REST APIs, Postman/API tools, JSON APIs
SQL databases (MSSQL, MySQL)
Python, Bash
AWS or other cloud environments
Log analysis using Splunk, Kibana, CloudWatch, or similar tools
Solid understanding of:
Microservices architecture
Distributed systems and integrations
Data structures, SOLID principles, design patterns
Performance monitoring and multithreaded application behavior
Ability to read, understand and write code samples
Strong analytical diagnostic, and problem-solving abilities
Excellent written and verbal communication skills
Ability to work independently and manage multiple escalations concurrently
High level of attention to detail and documentation discipline
Benefits
Company stocks
Annual merit increase based on performance
15% night shift differential pay
Paid Leave with Cash Conversion
HMO with free dependents
Retirement Plan
Life Insurance
While on work from home setup: Internet and meal allowance are provided
Employee Assistance Program for mental and social well-being
Government-mandated Benefits (SSS, PhilHealth, PagIBIG, 13th month pay, Solo parent leave, Special leave for women)
User Support Analyst supporting local IT team in Eschenbach, providing hardware and software solutions. Involves problem analysis and implementation of new IT processes.
Technology Support Technician providing high - quality technical support to customers using our products. Working mostly from the office but with on - site visits when needed for complex issues.
Support Technician for Niterra maintaining jigs and fixtures for spark plug technology. Adhering to safety and quality standards while collaborating across departments and managing preventive maintenance.
Systems Support Technician maintaining robust IT support for PHS and improving health equity through technology. Responsible for computer systems upkeep across various locations in New York.
Technical Support Engineer providing basic technical support for Securitas Healthcare products via phone, email, and occasionally onsite. Responsible for customer contact, troubleshooting, and collaboration with higher tiers.
Technical Support Operations Manager overseeing Managed Services support operations in Plano, TX. Leading teams and ensuring customer satisfaction while managing technical support and NOC functions.
Experienced Fleet Support Analyst at Boeing analyzing data and supporting Supply Chain decisions. Collaborating with team members to visualize performance metrics and recommend improvements.
Support Engineer aiding Passbolt customers with troubleshooting and maintaining documentation. Handling technical issues and contributing to user discussions and product development.
Tech Support Engineer addressing technical issues for KLA equipment, assisting field engineers and collaborating with specialists for solutions. Travel required within the region and worldwide for escalated issues.
Endpoint Support Technician role providing operational support of endpoint devices. Collaborating with engineering teams and troubleshooting IT - related problems to enhance user experience.