Senior Software Engineer - Full-Stack JS (Contract)

Looking for an experienced software engineer who thrives in the JavaScript ecosystem—someone excited about both frontend and backend development, and who understands how to scale applications within modern architectures like serverless or microservices. You’ll play a central role in a complex, enterprise-scale project with fast-moving delivery needs, so we’re looking for someone who has previously led technical efforts and is confident in navigating ambiguity with autonomy. Lead feature development from idea to deployment, collaborating closely with product and design. Drive technical decisions and help shape the architecture for a fast-evolving, AI-enabled platform.Translate product requirements into reliable, scalable implementations across the stack. Operate with a high degree of autonomy—moving quickly from concept to shipping while maintaining code quality. Integrate external services, including payments and identity providers, with attention to security and performance. Profile and tune application performance to ensure smooth experiences at scale. Contribute to planning, estimations, and setting realistic delivery expectations with the team. Champion clean, testable code and support the team through thoughtful code reviews. Communicate proactively in a distributed environment and contribute to a culture of continuous improvement.