Software Engineer - Frontend & Backend

Role overview

1) Overall 5 to 7 years of experience. Node.js experience is must.

2) At least 3+ years of experience or couple of large-scale products delivered on microservices.

3) Strong design skills on microservices and AWS platform infrastructure.

4) Excellent programming skill in Python, Node.js and Java.

5) Hands on development in rest API’s.

6) Good understanding of nuances of distributed systems, scalability, and availability.

Who You Are:

• You’ve built scalable, production-ready APIs in fast-paced environments, and are comfortable with the challenges that come with a growing startup.
• You understand event-driven architectures and have hands-on experience building real-time applications.
• You are fully capable of taking ownership of backend systems, from designing the database schema to writing efficient, maintainable code.
• You think beyond the code: optimizing performance, scalability, and security are as important as building new features.
• You’re comfortable troubleshooting complex issues, whether that’s API bottlenecks, database performance, or production issues.

Responsibilities:

• Design, implement, and manage a NestJS backend with a modular, scalable architecture that can easily handle real-time events and communication.
• Develop and maintain WebSocket services for real-time event-driven updates and ensure seamless communication across the system.
• Integrate RabbitMQ for reliable internal messaging, handling queues and ensuring event-driven workflows are efficient and fault-tolerant.
• Implement database management strategies using MongoDB, Redis, and Elasticsearch, ensuring efficient data handling, indexing, and optimization.
• Integrate with external APIs (JSON-RPC, XML-RPC, REST) to enhance system capabilities.
• Ensure high performance of the system by optimizing database queries, implementing caching strategies using Redis, and ensuring optimal indexing and data flow.
• Implement role-based authentication and authorization mechanisms using JWT, OAuth, and RBAC patterns within NestJS.
• Follow security best practices to ensure sensitive data is protected, credentials are stored securely, and the system is resilient to common vulnerabilities.
• Work collaboratively with cross-functional teams to ensure seamless integration between different services and technologies.

Must-Have Skills:

• Strong proficiency in Node.js and NestJS with TypeScript.
• Solid experience with MongoDB, Redis, and Elasticsearch for data storage and real-time data handling.
• In-depth knowledge of WebSockets and Socket.IO in NestJS Gateways, enabling real-time communication and updates.
• Experience with RabbitMQ for message queuing and asynchronous task handling.
• Strong understanding of authentication & authorization systems using JWT, OAuth, and RBAC (Role-Based Access Control).
• Expertise in optimizing APIs, including techniques for caching, improving database performance, and reducing latency.
• Familiar with API security best practices, including secure storage of credentials, encryption, and safeguarding sensitive data.

Key Skills:

• TypeScript, NestJS, WebSockets, Socket.io
• Redis, MongoDB, Elasticsearch, RabbitMQ
• API Optimization, JWT, OAuth, RBAC
• Real-time communication, Event-driven architecture

A candidate who has a strong background in the design and implementation of scalable architecture and a good understanding of Algorithms, Data structures, and design patterns. Candidate must be ready to learn new tools, languages, and technologies

Microservices, MySQL/Postgres, Kafka/Message Queues, Elasticsearch, Data pipelines, AWS Cloud, Clickhouse/Redshift

• Minimum 6 years of experience
• Good understanding of various database types: RDBMS, NoSQL, GraphDB, etc
• Ability to build highly stable reliable APIs and backend services.
• Should be familiar with distributed, high availability database systems
• Experience with queuing systems like Kafka
• Hands-on in cloud infrastructure AWS/GCP/Azure
• Highly plus if know one or more of the following: Confluent ksql, Kafka connect, Kafka streams
• Hands-on experience with data warehouse/OLAP systems such as Redshift, click house and added plus. 
• Good communication and interpersonal skills

• Ability to join a small and growing team, and work with some of the coolest people you've ever met
• Opportunity to make an impact, and leave your mark on this organization.
• Competitive compensation, with the ability to shape your own career trajectory
• Go Extra Mile with Learning and Development

A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality on content, interact and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Xoxoday.

A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore and Dublin. We have three products in our portfolio: Plum, Empuls and Compass. Works with over 1000 global clients. We help our clients in engaging and motivating their employees, sales teams, channel partners or consumers for better business results.

Job Responsibilities:

• Create standard RESTful APIs
• Define API models
• Define Database models
• Communicate with other teams about breaking changes
• Maintain code quality
• Optimizing services for maximum performance

Requirements:  5+ years of work experience

• Advanced understanding of SQL ( NoSQL is a plus)
• Proficient understanding of Node.js
• Willingness to learn new ways of doing things
• Experience exposing functionality through RESTful APIs and GraphQL
• Perform performance tuning and query optimization using native SQL Server tools
• Ensure performance, security, and availability of databases
• Should be familiar with the AWS ecosystem and services
• Experience in deployment of scalable, low-latency, and highly available distributed systems
• Experience with Scrum/Agile development

We’re looking for a Ruby on Rails Software Engineer/Shopify App Developer who has experience working with the Shopify platform and is able to work on a Shopify app.

Your Daily Challenges

When we welcome you aboard we’ll introduce you to your Team, which consists of a front-end developer, a Shopify App Marketer who grew 2 apps to million dollar annual revenue, and a product manager.

These are the people you’ll work closely with on Product development day-to-day. Once you get settled in and learn more about the team, your day to day activities will look something like this:

1. Own the end-to-end development cycle for the Shopify app you’ll be working on.
2. Coordinate with fellow developers to get things done on time. 
3. Implement high quality code in an agile, test driven development environment
4. Review exception reports to identify and fix bugs
5. Development of new apps and features
6. Maintenance of existing features
7. Collaboration with cross-functional teams
8. Contributions of ideas to improve the product

Your Experience

1. 3-5 years of experience with Ruby on Rails
2. Experience with Shopify app development
3. Familiar with Sidekiq, PostgreSQL
4. Good understanding of HTML and CSS (positioning and styling)
5. Excellent communication skills
6. Takes pride in writing clean, organized, efficient code
7. An eye for detail
8. Experience with vanilla JavaScript and React a plus
9. Experience working in an entrepreneurial/startup environment

Your Compensation

1. The compensation range for this role is INR 14-18 LPA (~25K USD) + up to 5% equity.
2. The compensation varies with experience and qualifications. 
3. This is a full-time remote/work from home position.

Thanks for the time you took to read about this opportunity.

What if, you had a chance to build something iconic?

Responsibilities :

- Design and develop highly scalable, highly available, reliable, secure and fault-tolerant systems with minimal guidance for one of the fastest-growing company in India

- Translate business requirements into scalable and extensible design

- Pair with team members on functional and nonfunctional requirements and spread design philosophy, goals and improve the code quality across the team

- Partner with the product management team to define and execute the feature roadmap

- Coordinate with cross-functional teams (Mobile, UX etc.) on planning and execution

- Proactively manage stakeholder communication related to deliverables, risks, changes and dependencies

- The building of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.

Experience and Skills :

- 2+ years of hands-on experience in designing, developing, testing and deploying applications on Node.JS for large scale applications.

- Strong proficiency with JavaScript

- Understanding of Asynchronous Request handling techniques.

- Deep knowledge of Linux : CentOS, Fedora, or Ubuntu

- Data modeling experience in Relational and NoSQL databases(MONGO DB)

- Ability to understand and implement Continuous Integration and Continuous Delivery

- Well versed with Agile methodologies, TDD and Test Engineering and Automation

- Ability to design and implement low latency RESTful services

- Experience troubleshooting server performance - memory issues, GC tuning, resource leaks, etc.

- Excellent understanding of interactive application development paradigm, memory management, performance/resource optimizations, database interactions, network programming, concurrency and multithreading, fault tolerance, monitoring, security and operability of systems

- Continuously refactor applications to ensure high-quality design

- Ability to plan, prioritize, estimate and execute releases with a good degree of predictability