Backend Engineer

Job Details

- Job Title: Senior Backend Engineer

- Industry: SAAS

- Function – Information Technology

- Experience Required: 5-8 years

- Working Days: 6 days a week, (5 days-in-office, Saturdays WFH)

- Employment Type: Full Time

- Job Location: Bangalore

- CTC Range: Best in Industry

Preferred Skills: AWS, NodeJS, RESTful APIs, NoSQL

Criteria

· Minimum 5+ years in backend engineering with strong system design expertise

· Experience building scalable systems from scratch

· Expert-level proficiency in Node.js

· Deep understanding of distributed systems

· Strong NoSQL design skills

· Hands-on AWS cloud experience

· Proven leadership and mentoring capability

· Preferred candidates from SAAS/Software/IT Services based startups or scaleup companies

Job Description

The Role:

What You’ll Build:

1. System Architecture & Design

● Architect highly scalable backend systems from the ground up

● Define technology choices: frameworks, databases, queues, caching layers

● Evaluate microservices vs monoliths based on product stage

● Design REST, GraphQL, and real-time WebSocket APIs

● Build event-driven systems for asynchronous processing

● Architect multi-tenant systems with strict data isolation

● Maintain architectural documentation and technical specs

2. Core Backend Services

● Build high-performance APIs for 3D content, XR experiences, analytics, and user interactions

● Create 3D asset processing pipelines for uploads, conversions, and optimization

● Develop distributed job workers for CPU/GPU-intensive tasks

● Build authentication/authorization systems (RBAC)

● Implement billing, subscription, and usage metering

● Build secure webhook systems and third-party integration APIs

● Create real-time collaboration features via WebSockets/SSE

3. Data Architecture & Databases

● Design scalable schemas for 3D metadata, XR sessions, and analytics

● Model complex product catalogs with variants and hierarchies

● Implement Redis-based caching strategies

● Build search and indexing systems (Elasticsearch/Algolia)

● Architect ETL pipelines and data warehouses

● Implement sharding, partitioning, and replication strategies

● Design backup, restore, and disaster recovery workflows

4. Scalability & Performance

● Build systems designed for 10x–100x traffic growth

● Implement load balancing, autoscaling, and distributed processing

● Optimize API response times and database performance

● Implement global CDN delivery for heavy 3D assets

● Build rate limiting, throttling, and backpressure mechanisms

● Optimize storage and retrieval of large 3D files

● Profile and improve CPU, memory, and network performance

5. Infrastructure & DevOps

● Architect AWS infrastructure (EC2, S3, Lambda, RDS, ElastiCache)

● Build CI/CD pipelines for automated deployments and rollbacks

● Use IaC tools (Terraform/CloudFormation) for infra provisioning

● Set up monitoring, logging, and alerting systems

● Use Docker + Kubernetes for container orchestration

● Implement security best practices for data, networks, and secrets

● Define disaster recovery and business continuity plans

6. Integration & APIs

● Build integrations with Shopify, WooCommerce, Magento

● Design webhook systems for real-time events

● Build SDKs, client libraries, and developer tools

● Integrate payment gateways (Stripe, Razorpay)

● Implement SSO and OAuth for enterprise customers

● Define API versioning and lifecycle/deprecation strategies

7. Data Processing & Analytics

● Build analytics pipelines for engagement, conversions, and XR performance

● Process high-volume event streams at scale

● Build data warehouses for BI and reporting

● Develop real-time dashboards and insights systems

● Implement analytics export pipelines and platform integrations

● Enable A/B testing and experimentation frameworks

● Build personalization and recommendation systems

Technical Stack:

1. Backend Languages & Frameworks 

●  Primary: Node.js (Express, NestJS), Python (FastAPI, Django)

●  Secondary: Go, Java/Kotlin (Spring)

●  APIs: REST, GraphQL, gRPC

2. Databases & Storage

● SQL: PostgreSQL, MySQL

● NoSQL: MongoDB, DynamoDB

● Caching: Redis, Memcached

● Search: Elasticsearch, Algolia

● Storage/CDN: AWS S3, CloudFront

● Queues: Kafka, RabbitMQ, AWS SQS

3. Cloud & Infrastructure: 

● Cloud: AWS (primary), GCP/Azure (nice to have)

● Compute: EC2, Lambda, ECS, EKS

● Infrastructure: Terraform, CloudFormation

● CI/CD: GitHub Actions, Jenkins, CircleCI

● Containers: Docker, Kubernetes

4. Monitoring & Operations 

● Monitoring: Datadog, New Relic, CloudWatch

● Logging: ELK Stack, CloudWatch Logs

● Error Tracking: Sentry, Rollbar

● APM tools

5. Security & Auth

● Auth: JWT, OAuth 2.0, SAML

● Secrets: AWS Secrets Manager, Vault

● Security: Encryption (at rest/in transit), TLS/SSL, IAM

What We’re Looking For:

1. Must-Haves

● 5+ years in backend engineering with strong system design expertise

● Experience building scalable systems from scratch

● Expert-level proficiency in at least one backend stack (Node, Python, Go, Java)

● Deep understanding of distributed systems and microservices

● Strong SQL/NoSQL design skills with performance optimization

● Hands-on AWS cloud experience

● Ability to write high-quality production code daily

● Experience building and scaling RESTful APIs

● Strong understanding of caching, sharding, horizontal scaling

● Solid security and best-practice implementation experience

● Proven leadership and mentoring capability

2. Highly Desirable

● Experience with large file processing (3D, video, images)

● Background in SaaS, multi-tenancy, or e-commerce

● Experience with real-time systems (WebSockets, streams)

● Knowledge of ML/AI infrastructure

● Experience with HA systems, DR planning

● Familiarity with GraphQL, gRPC, event-driven systems

● DevOps/infrastructure engineering background

● Experience with XR/AR/VR backend systems

● Open-source contributions or technical writing

● Prior senior technical leadership experience

Technical Challenges You’ll Solve:

● Designing large-scale 3D asset processing pipelines

● Serving XR content globally with ultra-low latency

● Scaling from thousands to millions of daily requests

● Efficiently handling CPU/GPU-heavy workloads

● Architecting multi-tenancy with complete data isolation

● Managing billions of analytics events at scale

● Building future-proof APIs with backward compatibility

Why company:

● Architectural Ownership: Build foundational systems from scratch

● Deep Technical Work: Solve distributed systems and scaling challenges

● Hands-On Impact: Design and code mission-critical infrastructure

● Diverse Problems: APIs, infra, data, ML, XR, asset processing

● Massive Scale Opportunity: Build systems for exponential growth

● Modern Stack and best practices

● Product Impact: Your architecture directly powers millions of users

● Leadership Opportunity: Shape engineering culture and direction

● Learning Environment: Stay at the forefront of backend engineering

● Backed by AWS, Microsoft, Google

Location & Work Culture:

● Location: Bengaluru

● Schedule: 6 days a week, (5 days-in-office, Saturdays WFH)

● Culture: Builder mindset, strong ownership, technical excellence

● Team: Small, highly skilled backend and infra team

● Resources: AWS credits, latest tooling, learning budget

Strong Full stack/Backend engineer profile

Mandatory (Experience): Must have 2+ years of hands-on experience as a full stack developer (backend-heavy)

Mandatory (Backend Skills): Must have 1.5+ strong experience in Python, building REST APIs, and microservices-based architectures

Mandatory (Frontend Skills): Must have hands-on experience with modern frontend frameworks (React or Vue) and JavaScript, HTML, and CSS

Mandatory (Database Skills): Must have solid experience working with relational and NoSQL databases such as MySQL, MongoDB, and Redis

Mandatory (Cloud & Infra): Must have hands-on experience with AWS services including EC2, ELB, AutoScaling, S3, RDS, CloudFront, and SNS

Mandatory (DevOps & Infra): Must have working experience with Linux environments, Apache, CI/CD pipelines, and application monitoring

Mandatory (CS Fundamentals): Must have strong fundamentals in Data Structures, Algorithms, OS concepts, and system design

Mandatory (Company) : Product companies (B2B SaaS preferred)

Preferred

Preferred (Location) - Mumbai

Preferred (Skills) : Candidates with strong backend or full-stack experience in other languages/frameworks are welcome if fundamentals are strong

Preferred (Education) : B.Tech from Tier 1,Tier 2 institutes

• 4+ years exp with solid backend/engineering experience.
• Knowledge of data structures and an eye for architecture.
• Solid CS fundamentals, fluent in multi-threaded and asynchronous programming, a strong inclination for architecting at scale.
• Excellent technical design, problem-solving, debugging, and communication skills.
• Rapid prototyping worked on distributed systems at scale.
• Basic knowledge of SQL as well as NoSQL databases.
• Proficient in Golang, it's design, and concurrency patterns.

• Responsible for providing technical leadership, design and development of complex pieces of the service oriented architecture based platform.
• Modelling Database Design for large scale applications.
• Develop for performance engineering.
• Design for the right use of micro services, containerization and observability.

• Drive technology and product innovation through rapid prototyping and iterative development.
• Create reference implementation for our integrations and for backward compatibility.
• Not interested in managerial responsibilities

Requirements, Desired Skills and Experience

• Tech Stack based on Ruby-on-Rails, Python-Django or Node.js frameworks.

• Engineering degree 

   Opportunities for the right candidate

• Build and develop SaaS and PaaS products from scratch
• Build the best-in-class UX based products
• State of Art technologies (Latest trends in the industry)
• Work with a well-knit team, almost like one’s family
• Startup culture and advantages of working in a co-working space
• Performance based career progress and high visibility with management and founders

About Easyrewardz:

• Easyrewardz offers industry-agnostic cloud-based CRM, Loyalty and Conversational Commerce solutions that enable seamless omnichannel customer experience.
• At Easyrewardz, we believe that every customer data captured has a story to tell! Our key focus has always been to help brands deliver seamless customer experience and create a deeper customer connect by leveraging actionable insights obtained from data.
• The Indian retail ecosystem is still learning to rely on data when it comes to delivering consistent customer experiences throughout the journey, hence we’ve tried to address those gaps and pain points with our CRM suite.
• Our entire gamut of solutions has Customer Data Platform at the core providing intelligence that powers every product and enables Single View of Customer.

About the role

At EasyRewardz, we're using leading-edge technology to create best loyalty solutions of tomorrow. When you join us as a Sr. Software Engineer, you'll become part of a team focused on innovation and change. You'll work a little harder. You'll aim a little higher. You'll expect more from yourself and others. And at the end of the day, you'll be doing a lot of good work. Through a lot of inspired individuals, we are using technology to build varied nature of loyalty solutions that works better for more people in more ways than ever.

We are looking to reinforce our team with people who are decisive, brilliant and built for speed -- people like you.

As a backend .NET core developer, you will be predominantly involved in:

• Developing business solutions by creating new and modifying existing software web applications.
• Coding, testing, debugging & supporting all types of enterprise web applications consistent with established specifications and business requirements to deliver business value.

This is more than a challenging development role. This is high performance technology.

Responsibilities:

• Develop, test, implement and maintain .net core based middle layer/services application working with established processes.
• Ensure adherence of best coding practicesfor a high-performance data processing backend application.
• Identify production and non-production application issues & assist team with optimal solution.
• Identify opportunities to fine-tune and optimize applications of .Net core developed projects, including periodic code review.
• Provide technicalsupport and consultation for .Net core backend application and deployment related queries

Desired Skills Technical Skills

• Experience in WCF/Web Services or REST API (Using C#.Net core)
• 1+ years of hands on experience (using HTTPS) .Net core Based Windows Services 2+ year of hands on experience SQL Server (2012 or 2014)
• 2+ year of hands on experience in writing high performance SQL queries.
• (MySQL is preferable) Message Queue (RabbitMQ, Kafka or similar) Work experience preferable for message queue based architecture development Distributed Cache Management (Redis Cache, MemCached or similar) Experience preferable

What you need to have:

ROLES AND RESPONSIBILITIES

• Lead the Software Team. Ensure consistent deliveries of planned features while ensuring code quality, testing standards, and processes are maintained.

• Work with the leadership team to cultivate and grow the Internal Software Team Culture at

• Work across the full stack, building highly scalable distributed solutions that enable positive user experiences and measurable business growth

• Ensure application performance, uptime, and scale, maintaining high standards of code quality and thoughtful application design.

• Solve technical problems of high scope and complexity.

• Exert influence on the overall objectives and long-range goals of your team.

• Experience with performance and optimization problems, particularly at a large scale, and a demonstrated ability to both diagnose and prevent these problems.

• Help to define and improve our internal standards for style, maintainability, and best practices for a high-scale web environment. Maintain and advocate for these standards through code review.

CANDIDATES MUST HAVE

• Experienced in designing and integrating RESTful APIs

• Knowledge of Python

• Excellent debugging and optimization skills

DESIRED SKILLS & EXPERIENCE

• 3-5 years of experience building large-scale software applications and working with large software teams.

• Bachelor’s degree in computer science, information technology, or engineering • Experience designing and integrating RESTful APIs

• Knowledge of Python and Backend Development

• Experience building Web/Mobile applications

• Excellent debugging and optimization skills

• Unit and Integration testing experience

• Being knowledgeable about engineering processes and good practices

• Passionate about learning new tools. Ability to continuously learn and acquire knowledge.

• Able to adapt to changing complexity of tasks.