Senior Backend Developer in Mumbai

Actively Reviewing the Applications

Wizzer AdvisorTech

India Full-Time On-site

Posted 3 weeks ago • Apply by June 9, 2026

Job Description

Wizzer is seeking a Senior Backend Engineer who thrives on building scalable systems and shaping the future of a high-growth WealthTech platform. In this role, you will contribute to mission-critical backend services that power our investment platform, trading systems, and client-facing applications. You’ll be a key contributor from inception to deployment, with hands-on ownership of architecture, implementation, release cycles, and operational monitoring. You’ll collaborate closely with product, frontend, and infrastructure teams, making key decisions in the backend architecture and mentoring junior engineers. This is a high-impact role for someone looking to grow within a fast-paced, collaborative, and technically challenging environment.

Key Responsibilities

System Ownership: Lead the design and implementation of backend services and APIs that are robust, scalable, and secure.
Technical Execution: Identify system bottlenecks and performance issues and implement optimizations as we scale.
Cross-functional Collaboration: Work closely with Product Managers, Architects, and Engineers to translate business requirements into technical solutions.
Mentorship: Guide junior developers and promote best practices in backend development and system design.
Operational Excellence: Improve reliability, observability, and documentation across services; actively contribute to incident handling and resolution.
Tooling & Standards: Promote modern tooling and advocate for improved development experience and productivity through automation and continuous integration.
Documentation: Participate in and contribute to writing RFCs, architecture diagrams, and technical documentation.

Our Tech Stack

Frameworks & Languages: Loopback, NestJS, Fastify, NodeJS, TypeScript
Databases & Middleware: MongoDB, socketcluster.io, KrakenD
Tools & Platforms: LogRocket, Digio, Docker, AWS, Digital Ocean
DevOps & Documentation: Terraform, Bitbucket, Stoplight, JIRA

About Company: Wizzer is a year-old team of 15 building out a WealthTech platform led by Kaushal, a 3X founder with 1 VC raise & exit behind him, and a significant contribution to a $10MM fundraise startup. The first version of our product has already received NSE and BSE approvals, and the advanced trading terminal, advisory dashboard, and operations platform we're building will help RIAs conduct their business in a seamless and scalable manner. With the latest tech stack and the best tools and processes, we are building a fintech product in the quant space at Wizzer. Our Mumbai-based team is an agile engineering alpha team.