T3 Support Engineer, Fluent English

SupportYourApp

. Investigate and troubleshoot issues escalated from T1 involving backend, databases, and cross-system integrations .

Posted 10/13/2026contractRemote • ArgentinaMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong troubleshooting and analytical skills in technical support, with a focus on backend systems, databases, and cross-system integrations. Proficient in SQL and familiar with cloud services, error-tracking, and monitoring tools to ensure effective incident resolution and customer satisfaction.

Highest-signal resume keywords

Strong SQL SkillsTechnical Support ExperienceError-Tracking Tools (Sentry)Monitoring Tools (Grafana)Customer-Facing Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

SQLPHPJavaScriptTypeScriptBackend TroubleshootingDatabase QueryingCode ReadingAnalytical ThinkingBug ReproductionConfiguration Changes

Soft Skills

Excellent Communication SkillsCustomer-Focused ApproachProactive AttitudeClear Documentation SkillsAnalytical Research Skills

Tools & Technologies

AWSSentryGrafanaReact NativeClickHouseBigQuery

Industry Keywords

Technical SupportSRECross-System IntegrationsMobile App SupportMonolith-Plus-Services Architecture

Tech Stack

Tools & technologies

AWSBigQueryCloudGrafanaGraphQLJavaScriptPHPReactReact NativeSQLTypeScript

About the role

Key responsibilities & impact

Investigate and troubleshoot issues escalated from T1 involving backend, databases, and cross-system integrations
Reproduce bugs across web admin consoles, mobile apps, and backend APIs
Analyze logs, error traces, and metrics to identify root causes
Query production databases in read-only mode to validate data-related issues
Implement small, low-risk fixes, including configuration changes, data corrections, and targeted code patches
Escalate complex issues to Engineering with clear documentation and findings
Track incidents and outages through resolution using monitoring and error-tracking tools to verify fixes
Maintain and expand internal runbooks and knowledge bases to reduce recurring escalations
Maintain deep understanding of client solutions and meet KPIs

Requirements

What you’ll need

Excellent English skills (at least C1 for both spoken and written)
Experience in Technical Support, SRE, or Engineering, with strong troubleshooting and code-reading skills
Proven customer-facing experience in a technical support or customer support role
Strong SQL skills and experience with production-scale relational databases
Strong customer-focused approach and excellent communication skills
Ability to explain technical concepts in a clear, simple, and customer-friendly manner
Working knowledge of PHP and/or JavaScript/TypeScript
Familiarity with AWS or another cloud provider, including logs, services, and secrets
Experience with Sentry or similar error-tracking tools and Grafana or similar monitoring tools
Strong written communication skills and ability to document technical findings clearly
Strong analytical thinking and research skills
Ability to identify when an escalation to the Engineering team is required
Positive, proactive and responsible attitude
Personal computer (at least 8Gb of RAM) with a stable internet connection (minimum 45 Mbps–download and 20 Mbps–upload)
Experience supporting a mobile app (React Native or similar) is a plus
Exposure to GraphQL and REST API debugging is a plus
Experience with analytical/columnar databases (ClickHouse, BigQuery, etc.) is a plus
Prior experience in a company with a monolith-plus-services architecture is a plus

Benefits

Comp & perks

Fixed schedule: Monday–Friday, 10:30 PM - 7AM GMT+11
Opportunity to cooperate fully remotely from EU
Inclusive international environment
Compensation in USD
Rewards for referring friends
Balance between project workload and personal time, but also – internal health policy
Responsive leadership interested in your development and long-lasting cooperation
Greenhouse conditions for self-development
A culture built on trust, with no time-tracking requirements