Backend Developer

• 4–7 years of professional C++ experience in performance-critical systems
• Expert knowledge of modern C++ (C++11/14/17)
• Strong understanding of data structures, algorithms, and memory models
• Deep experience with multithreading, atomics, lock-free programming, and CPU cache behaviour
• Excellent knowledge of Linux internals and system-level programming
• Experience with low-level debugging and profiling (gdb, perf, valgrind, flamegraphs)
• Proficiency with CMake/Make and Git

2. Trading Systems Experience (Highly Preferred)

• Hands-on experience with order management systems (OMS) and execution engines
• Knowledge of exchange protocols: FIX, ITCH, OUCH, FAST
• Experience handling market data feeds (L1/L2, multicast, UDP)
• Understanding of latency measurement, clock synchronization, and time stamping
• Experience with network tuning (kernel bypass, socket tuning, CPU pinning)
• Familiarity with trading lifecycle, risk checks, and throttling mechanisms

3. Education

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related discipline

4. Soft Skills (Important for Trading Firms)

• Ability to work under extreme time and accuracy pressure
• Strong ownership of production systems
• Clear and direct communication with traders and quants
• Bias toward simple, fast, and reliable designs

5. Key Responsibilities

• Design, develop, and optimize ultra-low-latency C++ trading applications
• Build and maintain exchange connectivity and order execution systems
• Develop real-time market data pipelines with strict latency requirements
• Optimize systems at CPU, memory, and network levels
• Implement lock-free or low-lock concurrent designs
• Analyze latency using profiling tools and improve tail latency
• Ensure high availability, fault tolerance, and rapid recovery
• Work closely with Traders and Quant Researchers to implement strategies
• Participate in architecture and performance design reviews
• Review code, enforce best practices, and mentor junior engineers
• Support production systems and handle time-critical issues when needed

ROR

1-2 years of experience working with Ruby on rails as well as libraries like Resque and RSpec.

Good experience with Redis, Sidekiq, and Docker.

Ability to write clean ruby code.

Proficiency with code versioning tools including Git, Github, Gitlab, and SVN.

Experience with AngularJS or React JS is a plus.

Familiarity with MVC, Mocking, RESTful, and ORM.

Good understanding of front-end technologies including HTML5, JavaScript, Jquery, and CSS3.

Knowledge of server-side templating languages including Slim, Haml, and ERB.

Familiarity with tools like Jira, Postman, Slack, and Microsoft Teams.

Job Description

Title:- Backend Developer

About us:-

If you think back to your school or college days, the best memories you have are those with your friends! Your first day in college, your best friend, your dorms, hanging in the corridors, your school canteen, all nighters before exams & chilling for weeks after exams - our school lives are filled with so many awesome interactions, experiences & memories. In each of them you’re with a friend, never alone! Humans always have, and will always continue to learn from one another. We are a social learning platform that allows us to learn the way we learn best – socially

It is a network of after-school learning centres meant for inspiration, collaboration, and holistic growth. We encourage children to explore what works best for them. It is our belief that every child deserves the space and opportunity to explore & create. Learning happens best in person, but there is an opportunity to make this experience 10X via modern centres, technology, and powerful communities! We're a mission driven organisation trying to build a network of such learning centres and with empowered teachers in every neighbourhood of our country!

Responsibilities :-

We are looking for a Python(Django) Web Developer responsible for managing the interchange of data between the server and the users. Writing reusable, testable, and efficient code. Design and implementation of low-latency, high-availability, and performance applications. Expert in Python, with good knowledge of Python web framework Django. Understanding of fundamental design principles behind a scalable application.

Skills:- Python, Django, Websockets, storage systems

• B.Tech/B.E(Computer Science/Information Technology) and 4+ years of software development experience
• Strong experience in Python
• Strong problem-solving skills, Computer science fundamentals, Data structures, and Algorithms
• Knowledge of Databases such as SQL and Nosql

* Write “clean”, well-designed code

* Produce detailed specifications

* Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality

* Contribute in all phases of the development lifecycle

* Follow industry best practices

* Develop and deploy new features to facilitate related procedures and tools if necessary

Requirements:

* Proven software development experience in PHP

* Understanding of Frameworks like Laravel, CodeIgnitor, Wordpress, Yii, etc

* Demonstrable knowledge of web technologies including HTML, CSS, Javascript, AJAX etc

* Good knowledge of relational databases, version control tools and of developing web services

* Experience in common third-party APIs (Google, Facebook, Ebay etc)

* Passion for best design and coding practices and a desire to develop new bold ideas

* BS/MS degree in Computer Science, Engineering or a related subject

You will be building efficient, scalable & high performance microservices and applications which will power the network of thousands of retailers across the country and at the same time improve the efficiency and visibility of information flow in our supply chain systems.

Your core responsibilities:

• Create elegant, efficient and maintainable software to support and extend our current products.
• Solve complex architectural challenges when implementing new features.
• Integrate with databases, file systems, cloud services when delivering scalable solutions.
• Troubleshoot and fix reported customer issues, delivering software patches as needed.
• Assisting in making design decisions based on performance, scalability, security, and future expansion.
• Communicating and collaborating with management, product, QA teams.

What will help you thrive in this role?

• Degree in Computer Science, similar technical field of study or equivalent practical experience.
• 5+ years of experience as a Backend Engineer.
• Proficiency in web development using any of the languages: PHP, Python, Java, NodeJS or Golang.
• Should possess a solid grasp of object-oriented programming, system architecture & design, databases, development, and testing methodologies.
• Good in Design (HLD and LLD).
• Good in Database schema design.
• Good to have experience with AWS or Google Cloud or Azure and serverless architecture.
• Excellent verbal communication skills.
• Track record of delivering successful products as an engineer.
• Experience with large applications of some scale will be a plus.
• Ability to deep dive, understand & improve the legacy code.
• Domain knowledge of supply chain & retail industry is a plus.

Whom you will be sharing your work day with? 

• We are in the forefront of disrupting traditional retail & supply chain industry by building distributed systems
• We are hardcore open source lovers and believe in the strength of open source community.
• We believe technology can change the way information is consumed.
• We use a data driven approach to build new products and features.
• Build new tech solutions to improve business processes and enable our various departments to help service our teams better.
• We embrace and enable DevOps culture within the organisation.

And yes! We do have new furry friends coming to our office everyday.

Work Perks

• Hybrid work environment with flexibility to work from anywhere. 
• A great salary, commensurate with experience.
• Unlimited vacation policy which means Paid Vacations.
• A relaxed & flexible working atmosphere.
• Weekly parties (Unofficial).
• Paid outings to remote work locations and industry events/conferences.
• Paid Health Insurance for you and your loved ones.

1. Develop and manage e-commerce websites, web applications & web sites.
2. Analyze, design, code, debug, test, document & deploy applications.
3. Participate in project & deployment planning.
4. Must be a self-starter & be able to work with minimum supervision
5. Exp. In modules/extensions development/customization.
6. Exp. In Theme integration/customization.
   
7. Exp. In API creation/integration.
   
8. Exp. In Migration from Magento1 to Magento2
9. Extensive experience of PHP and MySQL.
10. Exposure on Magento 2, CMS and JavaScript frameworks such as jQuery.
    
11. Demonstrable knowledge of XML, XHTML, CSS, Modules i.e. API integration,
12. Payment Gateways, XML with a focus on standards.
    
13. Demonstrable source control experience
    
14. Two or more published websites in E-Commerce

• Write well-designed code.
• Produce detailed specifications.
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality.
• Contribute in all phases of the development lifecycle.
• Follow industry best practices.
• Develop and deploy new features to facilitate related procedures and tools if necessary

• Expertise in any MVC framework, RDBMS, JSON,PHP and Rest APIs.
• Good understanding of design patterns.
• Should be flexible to work on multiple technologies as per project requirements.
• Candidate should be able to handle given task independently with minimal help.
• He/She should be a team player and be able to complete assign tasks on time.

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