Senior Solutions Engineer - Messaging APIs

We are looking for a Senior Solutions Engineer to support a U.S.-based technology-focused organization working with messaging and communication APIs. This remote role is ideal for a technically strong, intellectually curious engineer with hands-on WhatsApp Business API experience who can evaluate partner integrations, lead technical client engagements, and improve technical processes and tooling. Duties / Task to perform Review partner code and Postman collections to confirm integrations are fully built to technical specifications, not simply functional for demonstration purposes. Evaluate and score technical integration requirements against documented rubrics, ensuring consistent and defensible pass/fail decisions. Serve as the technical lead for multiple client engagements, collaborating with project and operational leads throughout the integration lifecycle. Independently manage the technical aspects of client projects while escalating appropriate issues to leadership. Provide clear updates on the technical status of assigned projects and identify recurring integration challenges. Recommend improvements to technical processes and products based on patterns observed across partner implementations. Contribute to vendor onboarding tooling for Apple APIs by proposing feature and code improvements based on real-world usage and technical reviews. Help improve technical review processes and internal tooling as you become familiar with existing workflows. Senior-level Solutions Engineering capabilities with hands-on experience working with the WhatsApp Business API. Previous WhatsApp API experience with a major messaging platform, Business Solution Provider (BSP), or technology provider. Ability to review partner code, APIs, integrations, and Postman collections at a technical level. Strong understanding of API integration requirements and the ability to assess implementations against documented specifications. Ability to write and review code directly; AI tools should be used as support rather than as a substitute for hands-on technical capability. Ability to independently lead the technical aspects of multiple client projects and determine when escalation is necessary. Strong analytical and problem-solving skills with an interest in improving technical processes and tooling. Fluent English with strong professional communication skills and familiarity with U.S. business culture expectations. Collaborative, intellectually curious, and comfortable working with cross-functional teams. Ability to successfully complete a criminal background check. Schedule & availability: Full-time, remote | Monday through Friday, 8:00 AM to 3:00 PM San Francisco time zone. Fully remote work environment Stable, long-term collaboration Clear scope of responsibilities and structured workflows Training and onboarding support Opportunity to work with international teams Exposure to modern tools and professional processes Supportive and collaborative work culture Opportunity for skill development and career growth 📌 Before You Apply, Please Read: At Freelance Latin America, we’re excited to connect you with meaningful remote opportunities. However, we want to be clear: ⏰ These are professional roles with set schedules defined by the client. Consistent availability is expected. You will have a set work schedule determined by the client, and you are expected to be present during those hours. 🤝 You will be part of the client’s team. You’ll follow their company guidelines, communication practices, and workflows, ensuring seamless collaboration. 📈 KPIs and goals matter. Your performance will be measured to ensure alignment with client expectations and project objectives. 🧑‍🏫 Training may be required. You might need to complete training to fully understand your role, tools, and client processes. 🎯 Commitment and responsibility are essential. We work with clients who rely on your dedication to deliver consistent, high-quality results. This is key to building trust and long-term partnerships. 🚀 Ready to grow your career with us? Apply only if you are ready to commit, learn, and take ownership of your role.