← all jobs

Backend Developer (Volunteer - Unpaid)

Work from home Full-time role Hiring

This is a remote position. This is not a paid opportunity (Volunteer Opportunity: 30 hrs / week) Job Title: Backend Developer Location: Remote Employment Type: Temporary Volunteer Work Authorization: All except H1B transfers About the Role: We are looking for a skilled Backend Developer with 3+ years of experience in building scalable, high-performance, and secure server-side applications. The role involves developing APIs, integrating databases, optimizing performance, and collaborating with cross-functional teams to deliver robust solutions. Key Responsibilities: Design, develop, and maintain server-side applications and APIs. Work with relational and non-relational databases to ensure data integrity and performance. Optimize backend systems for scalability, performance, and security. Integrate front-end elements with server-side logic. Collaborate with product managers, frontend developers, and QA teams to deliver high-quality software. Write clean, reusable, and well-documented code. Troubleshoot, debug, and resolve backend issues. Participate in code reviews and follow best practices for development. Implement and maintain CI/CD pipelines for backend services Required Skills & Qualifications: 3+ years of backend development experience. Strong programming skills in one or more languages (Java, Python, Node.js, Go, or similar). Experience with RESTful APIs and/or GraphQL. Solid 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 environment. Building and consuming REST APIs. Understanding of CRUD operations with PostgreSQL. Basic 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). What's in for you: Opportunity 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.

More open positions

Home-Based Travel Agent

Work from home Full-time role

Senior Full Stack Developer

Work from home Full-time role

Senior Electrical Engineer -Power

Work from home Full-time role

Senior Electrical Engineer -Power

Work from home Full-time role

Senior Electrical Engineer -Power

Work from home Full-time role

Senior Site Contract Manager

Work from home Full-time role

AML Analyst III – Remote

Work from home Full-time role

[Remote] Senior DevOps Engineer

Work from home Full-time role

[Remote] Mechanical Engineer

Work from home Full-time role

Research Associate I - Health Care Programs Research - Washington DC Hybrid Office

Work from home Full-time role

Licensed Property & Casualty Insurance Agent - Remote USA

Work from home Full-time role

Principal UX Program Manager

Work from home Full-time role

IT System-Administrator (m/f/d)

Work from home Full-time role

Temporary Remote Research Coordinator

Work from home Full-time role

Systems / DevOps Engineer

Work from home Full-time role

Patient Intake Coordinator (Part time, Remote)

Work from home Full-time role

Database Administrator, DBA

Work from home Full-time role

Entry-Level Remote E‑Commerce Customer Service Chat Representative – $34/hr – Join careerzynith for Flexible Work‑From‑Home Opportunities

Work from home Full-time role

Remote Customer Chat Support Specialist – Live Chat Assistant for E‑Commerce & Retail Brands (Remote, Flexible Hours)

Work from home Full-time role

Part‑Time Remote Data Entry Specialist – Aviation Operations Support – $20/hr at careerzynith

Work from home Full-time role

Experienced Remote Data Entry Specialist – Join careerzynith's Pioneering Team in Sustainable Energy and Innovative Automotive Technology

Work from home Full-time role