Design, build, and maintain server-side architecture, implement scalable APIs, and ensure high performance and responsiveness of back-end systems for a live SaaS product.
Key Highlights
Technical Skills Required
Benefits & Perks
Job Description
Company Description
We’re a growing tech company specializes in implementing cutting-edge digital solutions powered by IoT, data analytics, and AI to transform how organizations manage facilities and assets, focusing on enhancing efficiency and sustainability. Leveraging expertise in consulting, research, and development, we thrive on a culture of innovation and dedicated to creating a meaningful impact to deliver smart and cost-effective solutions tailored to every project's unique needs.
To learn more about how Infinity Wave is redefining the industry, visit http://www.infinitywave.io
Role Description
We’re looking for a Freelance Backend Developer to support our internal engineering team. The Back End Developer will be responsible for designing, building, and maintaining server-side architecture, implementing scalable APIs, integrating data storage solutions, and ensuring high performance and responsiveness of back-end systems for a live SaaS product used by enterprise clients.
Tech Stack: Python, Django, REST API, Docker, AWS
Key Responsibilities
• Develop, enhance, and maintain backend features using Python and Django.
• Build and optimize REST APIs for web and mobile applications.
• Work with Docker for development and deployment environments.
• Collaborate with the internal team during Malaysia business hours to resolve issues and complete sprint tasks.
• Perform code reviews, debugging, and performance optimization.
• Integrate backend services with AWS components (EC2, RDS, S3, etc.).
• Ensure backend components follow best practices for security, performance, and scalability.
• Assist with bug fixing, technical debt cleanup, and backlog items as assigned.
Requirements
• 2-3 years of experience in backend development.
• Bachelor's degree in Computer Science, Software Engineering, or a related field is advantageous
• Strong proficiency in Python and Django Framework.
• Solid experience building and consuming REST APIs.
• Knowledge of Docker for containerized development.
• Experience with AWS (EC2, RDS, S3, IAM, Lambda is a bonus).
• Familiar with relational databases (PostgreSQL preferred).
• Comfortable working with Git and CI/CD workflows.
• Strong problem-solving skills and attention to detail.
• Fluent in English, both written and spoken with ability to collaborate in a remote team environment and communicate effectively.
• Able to work during Malaysia working hours (GMT+8).
• Proficiency in Back-End Web Development and Software Development
• Familiarity with Front-End Development for seamless integration between back-end and user-facing systems
Nice to Have
• Experience with multi-tenant SaaS platforms
• Familiarity with microservices is a plus
• Experience with API documentation tools (Swagger, Postman)
• Exposure to security best practices (OAuth, JWT, permission management)
What We Offer
• Fully remote work arrangement
• Flexible workload based on sprint planning
• Opportunity to contribute to a live, enterprise-grade SaaS product
• Collaborative environment with clear requirements and technical guidance
• Long-term freelance/fulltime potential depending on performance