Senior Full Stack Software Developer (Node, TypeScript, NextJS, AWS) Long-Term Part-Time Opportunity

We are an Australian software development company looking for an experienced Senior Full Stack Software Developer to join our team on a long-term part-time basis. This is not a short-term project. We are looking for someone who wants to build a long-term working relationship. The successful candidate will initially be guaranteed approximately 20 hours per week during the first year, with flexible scheduling. Work is expected to be performed during, or with significant overlap to, the AEST/AEDT (Sydney/Melbourne) time zone. Please note: Only applicants currently residing in the Philippines will be considered. What You'll Be Working On You'll be involved in designing, developing and maintaining sophisticated software platforms, including: Multi-tenant SaaS applications Enterprise software solutions API platforms and third-party integrations Cloud-hosted applications running on AWS Modern web applications built with Node.js and Next.js You'll work closely with our solution architect and may communicate directly with clients when required. Mandatory Technical Skills Strong commercial experience with Node.js Advanced TypeScript Next.js Redis MongoDB AWS Elastic Beanstalk Amazon S3 GitHub REST API design and integration Experience integrating with third-party APIs Strong understanding of secure coding practices Applicants should have: 6+ years of professional software development experience Proven experience delivering complex software solutions Experience building enterprise-grade applications Experience developing multi-tenant SaaS platforms Experience designing scalable architectures Experience working on API-centric systems Strong understanding of software design principles and architecture Experience working independently with minimal supervision We're interested in developers who demonstrate: Excellent problem-solving skills Strong software architecture and design capability High attention to detail Clear written and spoken English Strong communication skills Ability to work directly with clients professionally Ownership and accountability Commitment to producing high-quality, maintainable code Ability to understand business requirements and convert them into technical solutions Interview Process Shortlisted candidates will participate in 2–3 interview stages, including: Technical interview (up to 60 minutes) with our Solution Architect Technical discussion covering architecture, software engineering principles, APIs, security, and cloud development Evaluation of English communication skills Discussion of previous projects and technical decision-making Please include: A brief introduction about yourself Your current city in the Philippines Your years of commercial experience Your availability (hours per week) Your resume or CV Links to your GitHub profile (if available) Links to any public projects or portfolio A short description of the most technically challenging software platform you've built and your role in it We're looking for someone interested in a long-term partnership who enjoys building high-quality software and solving challenging technical problems.