Full Stack Developer (GoLang + React)

ABOUT OOLIO:

Oolio is a leading B2B SaaS platform transforming how hospitality venues operate and grow. Trusted by more than 22,000 venues, we power mission-critical POS, payments, online ordering, kiosks, loyalty, kitchen management, and real-time insights all within one connected ecosystem.

We are building the operating system for modern hospitality simplifying complex operations, accelerating service, and unlocking smarter, data-driven decisions. Built by hospitality professionals with decades of industry experience, we understand the realities of every shift, every service rush, and every guest interaction. From cafs and quick-service restaurants to pubs, multi-site groups, and stadiums, Oolio enables venues to operate seamlessly at scale. With next-business-day settlements, powerful third-party integrations, and 24/7 real human support, we go beyond software we become long-term partners in growth.

As a rapidly scaling product-led organisation, were shaping the future of hospitality technology.

We build the technology backbone that powers modern hospitality businesses to perform, compete, and thrive at scale.

JOB DESCRIPTION:

At Oolio, Full Stack Developers are product builders who take ownership of systems that power mission-critical B2B SaaS platforms. You will design and build end - end highly scalable, resilient, and performance-driven features across frontend and backend layers in a fast-growing, scale-up environment.

You will collaborate closely with Product, Design, and Engineering teams to translate business requirements into elegant, scalable, and reliable solutionsbalancing user experience, system performance, and long-term technical excellence.

RESPONSIBILITIES:

• Own end-to-end feature developmentfrom frontend UI implementation to backend services, deployment, observability, and production reliability.
• Design and build scalable backend services using Golang and/or Node.js with strong emphasis on performance, concurrency, and maintainability.
• Develop responsive, performant, and intuitive user interfaces using React.js, ensuring excellent UX across devices and environments.
• Architect and evolve microservices and event-driven systems using async messaging, queues, pub/sub, and streaming patterns.
• Build and optimize RESTful, GraphQL, and/or gRPC APIs powering web, mobile, and third-party integrations.
• Design systems that support offline-first capabilities, ensuring reliable data synchronization and consistency across unreliable networks.
• Develop cloud-native applications deployed on AWS, leveraging Kubernetes and Docker for containerized infrastructure.
• Ensure application performance, scalability, and reliability as product usage and customer scale increase.
• Implement comprehensive testing strategies including unit, integration, UI, contract, and performance testing.
• Drive observability best practices including structured logging, monitoring, metrics, tracing, and alerting.
• Participate in code reviews and actively contribute to improving engineering standards, frontend architecture, and backend design patterns.
• Troubleshoot complex production issues, perform root cause analysis, and implement long-term systemic fixes.
• Collaborate with cross-functional stakeholders to deliver secure, scalable, and user-centric product solutions.

REQUIREMENTS:

Role: Senior Full Stack Developer - but final role will depend on candidate experience, credentials and interview outcomes

Experience: 5 9 Years (strong hands-on full stack engineering experience)

Education: Preferred B.Tech/B.E/M.Tech/M.E/MCA/M.S

Technology Stack: Golang, React.js (Next.js), Node.js, Microservices, Event-driven Architecture, Distributed Systems, AWS, Kubernetes, Docker, SQL & NoSQL databases, API Design, HLD, LLD, Performance Optimization, Testing Frameworks, RabbitMQ, Kafka, GraphQL, SSR (Server Side Rendering)

Other Requirements:

• Strong hands-on experience building production-grade full stack systems in SaaS or product-based organisations.
• Good understanding of frontend architecture including component design, state management, performance optimization, and frontend security best practices.
• Strong backend fundamentals including API design, concurrency concepts, data modeling, and distributed systems thinking.
• Decent experience with PostgreSQL and/or DynamoDB including schema design, indexing, and query optimization.
• Hands-on experience with Kubernetes, container orchestration, and cloud infrastructure (preferably AWS).
• Experience implementing CI/CD pipelines and DevOps best practices.
• Good understanding of data consistency models, concurrency control, and fault-tolerant system design.
• Experience working in high-scale or high-transaction environments (POS, payments, fintech, etc. is a plus, not mandatory).