Remote Fintech Integration Lead & Technical Support

Lever, Inc.; France; Remote; EUR 62,000 - 98,000; Full time

Benefits offered by this job

Fully remote

Career growth potential

Competitive salary in USD

Job summary

Lever, Inc. is seeking an Integration Manager & Technical Support Specialist based in France. You will lead onboarding by configuring integrations, payment routing, and methods across PSPs and card solutions, and manage API access for production readiness.

You will validate API calls with Postman, troubleshoot JSON/REST issues, analyze logs, and investigate incidents to identify root causes. Remote, international collaboration and clear reporting are essential.

Qualifications

• At least 1 year of experience in L2/L3 technical support or senior support roles in fintech/payments.
• Hands-on experience with system logs and monitoring tools to trace transaction errors.
• Understanding of client-server architecture, REST APIs, and JSON structures for integration troubleshooting.
• Proficient with Postman to validate API requests and troubleshoot integrations.
• Strong analytical and problem-solving skills with root-cause analysis and remediation planning.
• Attention to detail in managing credentials, payment settings, and production environments.
• Fluent Russian and upper-intermediate to advanced English (B2/C1) for international communications.
• Ability to quickly learn new documentation, systems, and workflows in a fast-evolving environment.

Responsibilities

• Lead technical merchant onboarding by configuring integrations, payment routing, and methods.
• Manage API access and environments, issuing API keys and production-ready configurations.
• Validate API requests and troubleshoot issues using Postman to prevent live-merchant problems.
• Investigate transaction incidents by analyzing JSON payloads, SQL queries, and logs.
• Use Grafana and other tools to trace errors across systems and identify root causes.
• Replicate and isolate reported bugs to determine origin (merchant side or platform).
• Provide escalations to Engineering with clear, actionable next steps.
• Support final verification and production readiness before merchant launch.
• Communicate findings clearly to international merchants and internal stakeholders.
• Prepare concise incident reports and maintain thorough documentation.

Skills

L2/L3 support

Postman

REST APIs

JSON

Incident reports

Root-cause analysis

English proficiency

Russian language

Monitoring tools

System logs

Tools

Grafana

SQL

Postman

Job description

Lever, Inc. is seeking an Integration Manager & Technical Support Specialist based in France. You will lead onboarding by configuring integrations, payment routing, and methods across PSPs and card solutions, and manage API access for production readiness.

You will validate API calls with Postman, troubleshoot JSON/REST issues, analyze logs, and investigate incidents to identify root causes. Remote, international collaboration and clear reporting are essential.