Backend Engineer

Weekday AI; Delhi; On-site; INR 18,000,000 - 25,000,000; Full time

Job summary

Weekday in Delhi NCR is seeking a Backend Engineer to design, build, and maintain scalable backend systems powering our flagship broking platform. You will translate product needs into robust services and APIs handling millions of transactions daily.

You will mentor engineers, conduct code reviews, and drive security, observability, and performance improvements while collaborating with front-end, data, and DevOps teams to deliver a reliable, high-throughput platform.

Qualifications

• 6+ years of professional backend development in fintech or brokerage.
• Strong proficiency in Java, Go, or Python.
• Experience building microservices at scale.
• Deep knowledge of relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases.
• Hands-on experience with cloud services (AWS, GCP, Azure) and container orchestration (Kubernetes).
• Security, observability, and performance optimization practices.
• Mentor junior engineers and conduct code reviews.
• Collaborate with cross-functional teams and contribute to roadmap.

Responsibilities

• Design and implement high-availability backend services and microservices on cloud platforms.
• Develop RESTful and GraphQL APIs for broker workflows and client integrations.
• Optimize database schemas for speed, consistency, and scalability in transaction processing.
• Integrate messaging queues and event-driven patterns (Kafka, RabbitMQ) for real-time data flow.
• Collaborate with DevOps to build CI/CD pipelines, containerize services with Docker/Kubernetes, and monitor system health.
• Implement robust security controls to protect sensitive financial data.
• Conduct performance benchmarks, load testing, and latency tuning to meet SLAs.
• Troubleshoot production incidents and perform root-cause analysis.

Skills

Java

Go

Python

Microservices

Cloud platforms

Databases

Tools

Docker

Kubernetes

Kafka

RabbitMQ

GraphQL

REST

Job description

This role is for one of the Weekly's clients

Salary range: ₹ 18,000,000 - 25,000,000 (ie INR 18-25 LPA)

Experience: 6+ yrs

Location: Delhi, Gurgaon

As a Backend Engineer, you will be responsible for designing, building, and maintaining scalable, high-performance backend systems that power our flagship broking platform. Leveraging your expertise in backend architecture, you will translate product requirements into robust, fault-tolerant services and APIs that handle millions of transactions per day. Your role will involve close collaboration with front-end, data, and DevOps teams to ensure seamless integration and continuous delivery, while driving best practices in security, observability, and performance optimization. You will also mentor junior engineers, conduct code reviews, and contribute to our evolving technical roadmap, positioning the platform to meet the demands of fast-moving market conditions.

Key Responsibilities

• Design and implement high-availability backend services and microservices architecture on cloud platforms.
• Develop clean, well-documented RESTful and GraphQL APIs for broker workflows and client integrations.
• Optimize database schemas (SQL/NoSQL) for speed, consistency, and scalability in transaction processing.
• Integrate messaging queues and event-driven patterns (Kafka, RabbitMQ) to decouple components and ensure real-time data flow.
• Collaborate with DevOps to build CI/CD pipelines, containerize services with Docker/Kubernetes, and monitor system health.
• Implement rigorous security controls (authentication, authorization, encryption) to protect sensitive financial data.
• Conduct performance benchmarks, load testing, and latency tuning to meet stringent SLAs.
• Troubleshoot production incidents, conduct root-cause analysis, and implement preventive measures.
• Mentor junior developers, provide technical guidance, and promote code quality standards.
• Stay updated with industry trends and emerging technologies to continuously improve the platform’s architecture.

What makes you a Great Fit

• 6+ years of professional experience in backend development within fintech or brokerage environments.
• Strong proficiency in Java, Go, or Python, with experience building microservices at scale.
• Deep knowledge of relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra) databases.
• Hands-on experience with cloud services (AWS, GCP, Azure) and container orchestration (Kubernetes).
• Expertise in designing resilient, fault-tolerant systems using circuit breakers, retries, and bulkheads.
• Proven track record of delivering secure, high-throughput APIs that integrate with financial exchange feeds.
• Familiarity with API monetization strategies, rate limiting, and throttling in a broking context.
• Strong debugging and performance tuning skills, with the ability to write efficient, maintainable code.
• Excellent communication skills, enabling collaboration across cross-functional teams.
• Passion for continuous learning and contributing to open-source or internal engineering best practices.