Our client is building a fast growing, marketing platform and looking for a Senior Solutions Architect/Backend Developer to play a pivotal role in shaping the architecture of their next-generation platform. You''ll design, build, and scale mission-critical systems, working closely with experienced Back End engineers while owning and driving a long-term technology roadmap. This is a high-impact role where you''ll influence cloud, enterprise, and solution architecture and lead decisions across AWS, cloud-native services, DevOps, and large-scale integrations-particularly within affiliate marketing platforms. ResponsibilitiesCreate and maintain comprehensive technical documentation, including API guides, integration documentation, and best practices.Provide architectural leadership with a strong focus on AWS-based solutions.Lead and support affiliate marketing platform integrations.Collaborate effectively across teams, fostering strong interpersonal communication and teamwork.Stay current with industry trends, particularly in .NET and AWS ecosystems.Design and implement cloud-native architectures, REST APIs, and microservices.Work with Spring Boot/Framework, .NET/.NET Core, GitHub, Docker, BPM, SQL, Oracle, NoSQL, AMQP/Kafka messaging, and related technologies.Mentor developers, conduct code reviews, and promote continuous improvement.Lead technical architecture decisions. Requirements:Bachelor''s degree in Computer Science or related field.Extensive experience as a Solutions Arc