Senior Backend Engineer – Java/Python (₹26 LPA to ₹35 LPA)

Winzons; India; On-site; INR 2,600,000 - 3,500,000; Full time

Benefits offered by this job

Health insurance

Generous leave policy

Learning & development budget

ESOPs

Team offsites & events

Maternity & paternity benefits

Company laptop

Job summary

Crewkarma in Bengaluru is seeking a Senior Backend Engineer to build and scale the core infrastructure powering a modern B2B SaaS platform in the billing and revenue space.

You will design scalable APIs and services, implement billing automation, ensure robust, secure, production-ready systems, and collaborate on integrations with CRMs, ERPs, payment gateways, and data platforms.

The role offers high ownership in a fast-paced startup environment with ESOPs and competitive compensation.

Qualifications

• 5+ years of backend engineering experience in product-based companies/startups.
• Strong expertise in Python, Java, or Node.js and modern backend technologies.
• Experience designing scalable APIs, microservices, and data modeling.
• Experience with cloud platforms and fintech/billing systems is a plus.

Responsibilities

• Design and develop scalable APIs, services, and backend systems
• Build infrastructure for billing automation and revenue recognition
• Ensure systems are robust, secure, and production-ready
• Collaborate on integrations with CRMs, ERPs, payment gateways, and data platforms

Skills

Python

Java

Node.js

Education

Bachelor’s Degree in Computer Science or related field

Tools

PostgreSQL

MongoDB

Job description

Company Name: Crewkarma

Job Role: Senior Backend Engineer

Work Type: Full‑Time

Experience: 5-8 Years

Qualification: Bachelor’s Degree in Computer Science or related field preferred

Salary: ₹26-35 LPA

Location: Bengaluru

Description :

We’re looking for a Senior Backend Engineer to build and scale the core infrastructure powering a modern B2B SaaS platform in the billing and revenue space.

If you enjoy solving complex backend problems, designing high-scale systems, and working in a fast-paced startup environment, this role is for you.

What You’ll Do :

• Design and develop scalable APIs, services, and backend systems
• Build infrastructure for billing automation and revenue recognition
• Ensure systems are robust, secure, and production-ready

Work Across the Stack :

• Contribute to backend-heavy full stack development when required
• Collaborate on frontend integrations to deliver seamless user experiences

Integrations & Platform Expansion :

• Build and manage integrations with CRMs, ERPs, payment gateways, and data platforms
• Ensure reliable data flow and system interoperability

Design for Scale :

• Handle high-volume data, real-time processing, and complex pricing models
• Optimize systems for performance, reliability, and scalability

Engineering Excellence :

• Write clean, maintainable, and testable code
• Participate in code reviews, architecture discussions, and best practices
• Debug and resolve complex cross-system issues

What You’ll Bring :

• 5+ years of backend engineering experience in product-based companies/startups
• Strong expertise in at least one : Python (FastAPI / Django), Java (Spring Boot), Node.js (Express)
• Solid understanding of : System design & scalable architectures, API design and microservices, SQL & NoSQL databases (data modeling + optimization)

Must Have :

• Proven experience building production‑grade backend systems
• Strong fundamentals in data structures, algorithms, and backend design
• Experience with high-scale systems or complex workflows
• Ability to work in fast-paced, ambiguous startup environments

Good to Have :

• Experience in Fintech / Billing / Payments / Financial systems
• Exposure to event-driven systems, queues, and real-time processing
• Understanding of cloud platforms (AWS/GCP/Azure)
• Background from high-growth startups (Series AD)

Preferred :

• Degree from Tier-1 engineering institutes (IITs / BITS)
• Strong ownership mindset and first-principles thinking

Why Join Us ?

• Work on high-scale, real-world backend challenges
• Build mission-critical financial infrastructure
• Direct impact on product growth and customer success
• Fast-moving, high-ownership startup environment
• Competitive compensation + ESOPs

Perks & Benefits :

• Health insurance
• Generous leave policy
• Learning & development budget
• ESOPs
• Team offsites & events
• Maternity & paternity benefits
• Company laptop

Note :

• Only candidates with strong backend + product company experience will be considered
• Preference for candidates with startup and scalable system exposure