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.