[Remote] Backend Developer (Volunteer \- Unpaid)

Note: The job is a remote job and is open to candidates in USA. SAN R&D Business Solutions is looking for a skilled Backend Developer for a volunteer position. The role involves designing, developing, and maintaining server-side applications and APIs while collaborating with cross-functional teams to deliver high-quality software solutions.ResponsibilitiesDesign, develop, and maintain server-side applications and APIsWork with relational and non-relational databases to ensure data integrity and performanceOptimize backend systems for scalability, performance, and securityIntegrate front-end elements with server-side logicCollaborate with product managers, frontend developers, and QA teams to deliver high-quality softwareWrite clean, reusable, and well-documented codeTroubleshoot, debug, and resolve backend issuesParticipate in code reviews and follow best practices for developmentImplement and maintain CI/CD pipelines for backend servicesSkills3+ years of backend development experienceStrong programming skills in one or more languages (Java, Python, Node.js, Go, or similar)Experience with RESTful APIs and/or GraphQLSolid understanding of database systems (MySQL, PostgreSQL, MongoDB, etc.)Knowledge of version control systems (Git, GitHub, GitLab)Familiarity with containerization and orchestration (Docker, Kubernetes)Understanding of cloud platforms (AWS, Azure, or GCP)Ability to work in an Agile/Scrum environmentBuilding and consuming REST APIsUnderstanding of CRUD operations with PostgreSQLBasic knowledge of deployment (Heroku, AWS EC2)Advanced API design (GraphQL, WebSocket APIs)Basic understanding of authentication & authorization (JWT, OAuth)Microservices architecture and containerization (Docker, Kubernetes basics)Knowledge of caching strategies (Redis, Memcached)Familiarity with CI/CD pipelines and automated testing for backend (Jest, Mocha, Supertest)BenefitsOpportunity to work alongside **senior leaders** in a cross-functional, fast-paced setting.Potential transition into a **paid role** or **equity opportunity** based on performance and company growth.Certificate of recognition and professional references.Freedom to experiment and contribute ideas to shape the company’s future.Company OverviewEmpowering Ideas, Delivering Excellence!! SAN R&D a next-generation R&D, IT Services and Technology solution provider company that helps enterprises reimagine their business and navigate their digital transformation. It was founded in 2024, and is headquartered in Fremont, California, US, with a workforce of 11-50 employees. Its website is https://www.sanrnd.com.