Sr. Integration Specialist - API & SaaS B2B (Demand Integrations Team)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Integration Specialist - API & SaaS B2B (Demand Integrations Team) based in Brazil.

This role is designed for a senior technical professional who specializes in API integrations, SaaS platforms, and enterprise client solutions.
You will act as a key technical bridge between strategic customers and internal engineering teams, ensuring successful integrations and long-term platform reliability.
The position combines hands-on technical execution with client management, project coordination, and cross-functional collaboration.
You will work with complex systems, analyzing logs, monitoring performance, and optimizing API-driven workflows at scale.
This opportunity offers the chance to influence product improvements, support global clients, and contribute to a high-impact technology environment.
You will also have opportunities to mentor others and grow toward technical leadership responsibilities.

• Lead end-to-end technical implementations and onboarding processes for enterprise partners using REST APIs and SaaS integrations.
• Manage a portfolio of strategic client accounts, acting as the primary technical advisor and escalation point for complex integration challenges.
• Monitor integration health, analyze system metrics, and investigate logs using observability tools to identify performance issues and optimization opportunities.
• Diagnose API bottlenecks, troubleshoot platform-to-platform integrations, and implement data-driven improvements to ensure reliability and scalability.
• Coordinate technical projects, manage timelines, and collaborate with Product, Engineering, and business teams to deliver successful outcomes.
• Review external partner documentation and technical requirements, translating business needs into product enhancements or engineering requests.
• Support distributed consulting teams by providing technical guidance, prioritization frameworks, and knowledge sharing.
• Mentor junior consultants and contribute to improved workflows, documentation, and operational processes.
• Maintain strong communication with global clients and internal stakeholders while managing complex priorities and deadlines.

Requirements:

• Extensive hands-on experience implementing, troubleshooting, and maintaining enterprise-level REST API integrations, preferably within B2B SaaS environments.
• Strong understanding of API architecture, integration patterns, internet protocols, and platform-to-platform communication.
• Experience with technical troubleshooting using tools such as Grafana, Kibana, OpenSearch, or similar observability platforms.
• Familiarity with Postman, Bruno, Git/GitHub, SQL, and Linux environments.
• Ability to balance technical execution, client communication, and project ownership across multiple priorities.
• Strong English communication skills, both written and spoken, with confidence collaborating with global teams and clients.
• Experience mentoring team members, improving technical processes, or acting as a technical leader is highly valued.
• Knowledge of software development methodologies, application architecture, and API infrastructure.
• Experience with at least one scripting or programming language such as Python, JavaScript/Node.js, or Go is a plus.
• Bachelor’s degree in Computer Science, Information Technology, Engineering, Business Administration, or a related field is preferred, or equivalent technical experience.

Benefits:

• Fully remote work opportunity.
• Opportunity to work with global enterprise clients and complex SaaS integration projects.
• Exposure to modern API technologies, cloud-based platforms, and advanced observability practices.
• Collaborative international environment with teams across multiple regions.
• Career growth opportunities, including potential progression toward technical leadership and people management.
• Opportunity to contribute to innovative technology solutions in a fast-growing research technology environment.
• Inclusive culture focused on collaboration, transparency, continuous learning, and professional development.