Senior Backend Engineer

About Barsys

Barsys builds connected smart hardware and a first-party advertising network for the U.S. spirits and beverage industry. We're a high-growth technology company with teams across New York, New Delhi, and London, and we're looking for a Senior Backend Engineer to help scale the systems behind our platform.

Location: New Delhi, India (in-person required)

About the Role

We're looking for a Senior Backend Engineer to own critical backend systems end-to-end — from design through production. You'll work across a modern polyglot stack (Go, Python, Node.js) while helping us evolve legacy PHP services, and you'll build on GCP at a company where engineering velocity is a competitive advantage. This is a high-ownership role for someone who wants to shape technical direction, not just execute tickets.

Responsibilities

• Design, build, and maintain scalable backend services and APIs
• Develop primarily in Go, Python, and Node.js, while supporting and evolving existing PHP services where needed
• Design and optimize data models, queries, and persistence layers using PostgreSQL and MySQL
• Build and operate cloud-native systems on Google Cloud Platform (GCP)
• Own backend features end-to-end — from technical design through deployment, monitoring, and production support
• Improve system reliability, performance, observability, and maintainability
• Collaborate closely with product, frontend, mobile, and other teams on architecture and delivery
• Contribute to technical direction, code reviews, engineering standards, and mentorship of other engineers
• Use AI-assisted and agentic coding tools/workflows to accelerate development, testing, debugging, and documentation while maintaining strong engineering judgment and code quality

Core Experience

• 6+ years of professional backend engineering experience, at a Senior Engineer level or equivalent
• Strong proficiency with Go, Python, and Node.js, with hands-on experience across all three
• Experience maintaining or developing production applications in PHP
• Strong SQL and relational database experience with PostgreSQL and MySQL
• Production experience with GCP and cloud-based application architecture
• Experience designing and operating REST APIs, distributed services, and asynchronous/background processing
• Strong understanding of software architecture, testing, CI/CD, observability, security, and production operations
• Comfortable diagnosing complex production issues across applications, databases, and infrastructure
• Experience using AI coding assistants, coding agents, or agentic software-development workflows in real engineering work
• Ability to work independently, make sound technical trade-offs, and take ownership of complex backend systems
• Experience with containers, Docker, and modern observability tools
• Based in or willing to relocate to New Delhi; this is an in-office role, not remote or hybrid

Nice to Have

• Experience with event-driven architectures, queues, or messaging systems
• Experience modernizing legacy systems or incrementally migrating services between technologies
• Experience in fast-moving product or startup environments

Why Barsys

Join a fast-scaling team building category-defining hardware and ad-tech infrastructure for a multi-billion-dollar industry, with real ownership over systems used at scale from day one.

Please send your resume to [HIDDEN TEXT]

Skills Required
Docker, Rest Apis, Php, Go, Node.js, Mysql, Postgresql, Python