T3 Support Engineer, Fluent English

SupportYourApp

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

Posted 9/25/2026contractRemote • Slovakia, Italy, BelgiumMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates strong troubleshooting and analytical skills in technical support, with expertise in SQL and experience in backend systems and databases. Proficient in documenting technical findings and maintaining knowledge bases to enhance operational efficiency.

Highest-signal resume keywords

SQL SkillsTechnical Support ExperienceTroubleshooting SkillsAWS FamiliarityError-Tracking Tools Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

SQLPHPJavaScriptTypeScriptBackend API DebuggingAnalytical ThinkingCode ReadingConfiguration ChangesData CorrectionsMonitoring Tools

Soft Skills

Strong Written CommunicationPositive AttitudeProactive ApproachAnalytical ThinkingResearch Skills

Tools & Technologies

SentryGrafanaClickHouseBigQueryReact Native

Industry Keywords

Technical SupportSREBackend SystemsCross-System IntegrationsRunbooksKnowledge BasesMobile App SupportREST APIGraphQLMonolith-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
Strong SQL skills and experience with production-scale relational databases
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 escalation to the Engineering team is required
Positive, proactive and responsible attitude
Personal computer with at least 8GB RAM
Stable internet connection with 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 such as ClickHouse or BigQuery is a plus
Prior experience with monolith-plus-services architecture is a plus

Benefits

Comp & perks

Fixed schedule: Monday–Friday, 10:30 PM - 7AM GMT+10
Opportunity to cooperate fully remotely from EU
Inclusive international environment
Compensation in USD
Rewards for referring friends
Balance between project workload and personal time
Internal health policy
Responsive leadership interested in your development and long-lasting cooperation
Greenhouse conditions for self-development
Culture built on trust, with no time-tracking requirements
Personal computer and stable internet connection requirements may be supported according to the engagement agreement; specific benefits and conditions vary by engagement terms