Integration Manager & Technical Support Specialist

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

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Integration Manager & Technical Support Specialist based in France.

Accountabilities

• Lead technical merchant onboarding by configuring integrations, payment routing, and payment methods across PSP, on/off-ramp, and card solutions.
• Manage API access and system environments, including issuing API keys and ensuring configurations are correctly established for production readiness.
• Validate API requests and troubleshoot integration issues using tools such as Postman, identifying configuration or technical problems before merchants go live.
• Investigate transaction incidents by analyzing JSON payloads, SQL queries, system logs, and monitoring data to identify root causes and determine appropriate remediation.
• Use monitoring and observability tools such as Grafana to trace transaction errors and investigate issues across technical systems.
• Replicate and isolate reported bugs to determine whether an issue originates on the merchant side or within the platform.
• Triage technical issues and provide clear, actionable escalations to Engineering when deeper investigation or product fixes are required.
• Support the final technical verification and production readiness process for merchants, ensuring configurations and integrations meet the required standards before launch.
• Communicate technical findings clearly to international merchants and internal stakeholders, translating complex technical issues into understandable explanations and actionable next steps.
• Prepare concise incident reports and technical findings while maintaining accurate documentation throughout troubleshooting and resolution processes.
• Remain accountable for issues through resolution, prioritizing accuracy, responsiveness, and reliable execution in time-sensitive situations.

Requirements

• You have at least 1 year of experience in L2/L3 technical support or a strong track record as a Senior Support Agent or Support Manager, ideally within fintech, crypto, payments, or a related technology environment.
• You have hands-on experience working with system logs and monitoring tools and can trace transaction errors to identify their underlying causes.
• You understand client-server architecture, REST APIs, and JSON structures and can apply this knowledge to integration troubleshooting.
• You are comfortable using Postman to validate API requests, investigate responses, and troubleshoot integration issues.
• You have strong analytical and problem-solving skills, with the ability to perform root-cause analysis and develop clear remediation plans under time constraints.
• You have exceptional attention to detail and understand the importance of precision when managing technical configurations, access credentials, payment settings, and production environments.
• You are proactive and self-directed, taking ownership of merchant issues rather than waiting for step-by-step instructions.
• You can quickly learn new technical documentation, systems, workflows, and product requirements in a rapidly evolving environment.
• You remain calm and effective under pressure and are comfortable handling incidents where accuracy and response time are critical.
• You have fluent Russian language skills and upper-intermediate to advanced English proficiency, approximately B2/C1, enabling you to communicate complex technical matters effectively with international merchants and colleagues.
• You can write concise incident reports and present technical findings clearly to both technical and non-technical stakeholders.
• You are committed to continuous learning and are motivated by opportunities to develop toward senior SRE, product, or engineering responsibilities.

Benefits

• Fully remote work within an agile and international team.
• Competitive salary based on your experience, skills, and individual contribution, with salary expectations requested in USDC.
• Career progression opportunities toward senior SRE, product, or engineering roles.
• Significant ownership and direct impact on platform reliability, merchant success, and production readiness.
• Opportunity to work at the intersection of fintech, cryptocurrency, payments, APIs, and digital financial infrastructure.
• Collaborative and transparent working environment that encourages open communication, experimentation, and measurable impact.
• Opportunity to work on technically challenging problems while continuously developing your technical and analytical skills.