Backend Developer

Job Title : Python Django Developer

Experience : 3+ Years

Location : Gurgaon (Work from Office)

Job Summary :

We are looking for an experienced Python Django Developer with strong expertise in building scalable web applications and distributed systems. The ideal candidate must have hands-on experience with Django, Redis, Celery, RabbitMQ, PostgreSQL, and Kafka to design and optimize high-performance applications.

Mandatory Skills :

Python, Django, Redis, Celery, RabbitMQ, PostgreSQL, Kafka

Key Responsibilities :

• Design, develop, and maintain web applications using Python & Django.
• Implement asynchronous tasks and background job processing using Celery with RabbitMQ/Redis.
• Work with PostgreSQL for database design, optimization, and complex queries.
• Integrate and optimize messaging/streaming systems using Kafka.
• Write clean, scalable, and efficient code following best practices.
• Troubleshoot, debug, and optimize application performance.
• Collaborate with cross-functional teams (frontend, DevOps, QA) for end-to-end delivery.
• Stay updated with the latest backend development trends and technologies.

Requirements :

• Minimum 3+ years of experience in backend development using Python & Django.
• Hands-on experience with Redis, Celery, RabbitMQ, Kafka, and PostgreSQL.
• Strong understanding of REST APIs, microservices architecture, and asynchronous task management.
• Knowledge of performance tuning, caching strategies, and scalable system design.
• Familiarity with Git, CI/CD pipelines, and cloud deployment (AWS/GCP/Azure) is a plus.
• Excellent problem-solving and communication skills.

About the Role

We’re looking for an Elixir Developer who is passionate about building scalable, high performance backend systems. You’ll work closely with our engineering team to design, develop, and maintain reliable applications that power mission-critical systems.

Key Responsibilities

• Develop and maintain backend services using Elixir and Phoenix framework.

• Build scalable, fault-tolerant, and distributed systems.

• Integrate APIs, databases, and message queues for real-time applications.

• Optimize system performance and ensure low latency and high throughput.

• Collaborate with frontend, DevOps, and product teams to deliver seamless solutions.

• Write clean, maintainable, and testable code with proper documentation.

• Participate in code reviews, architectural discussions, and deployment automation.

Required Skills & Experience

• 2–4 years of hands-on experience in Elixir (or strong functional programming background).

• Experience with Phoenix, Ecto, and RESTful API development.

• Solid understanding of OTP (Open Telecom Platform) concepts like GenServer, Supervisors, etc.

• Proficiency in PostgreSQL, Redis, or similar databases.

• Familiarity with Docker, Kubernetes, or cloud platforms (AWS/GCP/Azure).

• Understanding of CI/CD pipelines, version control (Git), and agile development.

Good to Have

• Experience with microservices architecture or real-time data systems.

• Knowledge of GraphQL, LiveView, or PubSub.

• Exposure to performance profiling, observability, or monitoring tools.

Why Join Us?

• Work with a team that expects and delivers excellence.

• A culture where risk-taking is rewarded, and complacency is not.

• Limitless opportunities for growth—if you can handle the pace.

• A place where learning is currency, and outperformance is the only metric that matters.

• The opportunity to build systems that move markets, execute trades in microseconds, and redefine

fintech.

Solution Oriented Mindset

• Assist project in all technical aspects of tooling and DevOps
• Proactively lead tools new versions release cycle and documentation
• Proactively identify risks related to application /deliverables and propose a mitigation plan
• Provide custom solutions as per customer requirements

Autonomy & Problem Solving Mindset

• Work in complete autonomy to deliver project deliverables, for advanced technical deliverables, with required level of quality
• Must have troubleshooting skills

Agile Mindset

• Contribute to improvement of internal process, tooling, and quality process
• Design, build and collect technical materials as part of project executions in a spirit of reusability for future engagements and maintain knowledge on best practices, tools, and reusable components for CAST analysis

Job Overview

We are looking for a talented Senior Backend Developer to join our team in developing backend servicing. As a key member of our development team, you will be responsible for cross-functional teams to design, develop, and maintain backend services and APIs using Node.js. The ideal candidate is passionate about distributed systems, has experience with backend services and is excited about optimising applications for performance, scalability, and reliability.

Responsibilities:

• Design, develop, and maintain backend services and APIs using Node.js.
• Collaborate with cross-functional teams to define requirements, architect solutions, and implement features.
• Write clean, modular, and maintainable code following best practices and coding standards.
• Optimise applications for performance, scalability, and reliability.
• Implement security measures to ensure data privacy and integrity in backend systems.
• Troubleshoot and debug issues to ensure smooth operation of production systems.
• Perform code reviews to maintain code quality, consistency, and adherence to coding standards.
• Stay updated with the latest trends and technologies in backend development, Node.js, and related ecosystems

Requirements:

• Bachelor's degree in Computer Science, Engineering, or related field.
• Proven experience in backend development, with at least 4 years of experience using Node.js.
• Strong understanding of data structures, algorithms, and software design principles.
• Experience with web frameworks such as Express.js.
• Proficiency in building RESTful APIs and microservices architecture.
• Familiarity with relational and NoSQL databases (e.g., MongoDB, PostgreSQL).
• Solid understanding of asynchronous programming and event-driven architectures.
• Experience with version control systems (e.g., Git) and collaborative development workflows.
• Excellent problem-solving, analytical, and troubleshooting skills.
• Ability to work independently and in a team environment, with excellent communication skills.

• Work across all phases of application development including requirement gathering, coding, release, bug fixing, documentation.
• Lead and mentor a team of developers guiding them in their day to day activities.
• Collaborate with other engineering teams to develop and deliver new features and enhance existing ones.
• Rapid prototyping (POCs) based on requirements.
• Test, debug and fix any functional or non-functional issues.
• Work with the architects to ensure feasibility of the design while ensuring all quality attributes are met.
• Participate in deployment and release activities.

• 5+years of relevant experience.
• Experience in leading a team.
• Expertise in Python, Django DRF, REST APIs
• Experience with Document DB, RDBMS and ORM.
• Demonstrated ability to write clean and testable code.
• Knowledge of MongoDB, PostgreSQL, Redis, ElasticSearch is preferred.
• Exposure to AWS will be an added advantage.
• Familiarity with front-end technologies (ReactJS, Javascript etc) will be a plus.
• Strong team player who can work efficiently in a highly collaborative effort.
•  Self-motivated and able to work independently as well as within a team.

About Rolling Arrays

Rolling Arrays provides HR Software and HR System Implementation Services (SAP SuccessFactors, Qualtrics, Reimburse, CICO, eFile, eAuthoring) to Clients in Singapore, Malaysia, Australia, UAE, Hong Kong. Rolling Arrays (RA) was featured as Singapore’s Top 75 fastest growing companies by the leading newspaper of Singapore - The Straits Times in 2021 where RA was ranked 48. Rolling Arrays has 2 lines of businesses: 

HR System Implementation Services: 

Rolling Arrays is regarded as number ONE mid-size firm in the South East Asian Market with a strong track record of 12 Years and more than 200 enterprise level HR Technology Implementation projects till date. The services include – 

• SAP SuccessFactors Design Consulting
• SAP SuccessFactors Implementation
• SAP SuccessFactors Change Management
• SAP SuccessFactors Support Services (AMS)

HR Software Products in Rolling Arrays’ portfolio (partner’s products and own products): 

• SAP SuccessFactors (World’s leading End to End Cloud HR Software solution)
• Qualtrics (World’s leading Experience Management Software)
• Reimburse (AI Enabled Travel & Expense Management Software for Enterprises)
• CICO (Intelligent Time Capture Machine, a software alternative to Physical Biometric Devices)
• eFile (Digitize and contextualize all employee documents in one place)
• eAuthoring (Author and publish your own learning content to capture tacit knowledge in the organization)

What you need to have:

Build reusable APIs for our client-facing apps in Node.js

Create and maintain scalable infrastructure leveraging modern cloud platforms Write tests and documentation as you implement features with your team Maintain expertise in current and emerging technologies and tools

4+ years’ Experience with NodeJS

BS degree or higher in Computer Science or Engineering Experience documenting and testing RESTful APIs

Experience working with databases in PostgreSQL, MongoDB or Redis

Experience and enthusiasm for working collaboratively with others in an Agile environment