Backend Developer

Role : Python Django Developer (Immediate Joiner)

Location : Gurugram, India (Onsite)

Experience : 4+ Years

Working Days : 6 Days WFO (Monday to Saturday)

Job Summary :

We are looking for an experienced Python Developer with strong expertise in Django to join our team. The ideal candidate will have 4+ years of hands-on experience in building robust, scalable, and efficient web applications.

Proficiency in RabbitMQ, Redis, Celery, and PostgreSQL is essential for managing background tasks, caching, and database performance.

Mandatory Skills : Python, Django, RabbitMQ, Redis, Celery, PostgreSQL, RESTful APIs, Docker.

Key Responsibilities :

• Develop, maintain, and enhance Django-based web applications and RESTful APIs.
• Design and implement message broker systems using RabbitMQ for asynchronous communication.
• Integrate Redis for caching and session management to improve application performance.
• Utilize Celery for managing distributed task queues and background processing.
• Work with PostgreSQL for schema design, optimization, and query tuning.
• Collaborate with cross-functional teams including front-end developers and DevOps engineers.
• Write clean, maintainable, and well-documented code aligned with industry best practices.
• Debug and troubleshoot issues across the application stack.
• Participate in system architecture discussions, code reviews, and agile ceremonies.
• Ensure performance, scalability, and security of applications.

Technical Skills Required :

• Minimum 4+ years of hands-on experience with Python and Django.
• Proficiency with RabbitMQ for message brokering.
• Experience with Redis for caching and session storage.
• Practical knowledge of Celery for asynchronous task processing.
• Strong command over PostgreSQL including complex queries and optimization techniques.
• Experience developing and consuming RESTful APIs.
• Familiarity with Docker and containerization concepts.

Preferred Skills :

• Exposure to CI/CD tools and processes.
• Experience with cloud platforms such as AWS or GCP.
• Understanding of Django ORM performance tuning.
• Basic knowledge of front-end technologies (HTML, CSS, JavaScript).

Backend Developer

📍 Noida | 🕐 Full-Time | 🧭 Experience: 2–3 Years

The Mission

We aren't building traditional backend systems — we're powering the infrastructure behind Agentic Intelligence. TestMu AI is building the world's first AI-native platform where backend systems don't just serve requests, they enable autonomous decision-making, execution, and scale.

The name "TestMu" comes from our community conference. Our users and team aren't an audience — they're the heartbeat of what we build. We believe AI augments human potential. It doesn't replace it.

You'll be building the core backend systems that power AI-driven workflows — ensuring high performance, scalability, and reliability at every layer.

The Pillars of Impact

🚀 1. Core Backend & System Architecture (50%)

• Build and scale high-performance backend services and APIs
• Design efficient database schemas, query optimization, and data flows
• Write clean, logical, production-grade code (Python, Golang, or similar)
• Own system performance — latency, throughput, and reliability

⚙️ 2. Backend for AI Systems (30%)

• Develop backend systems supporting AI agents and autonomous workflows
• Handle large-scale data processing, async tasks, and event-driven systems
• Integrate backend infrastructure seamlessly with AI/ML components

🧠 3. Scalability & Distributed Systems (20%)

• Contribute to microservices architecture and service decomposition
• Build fault-tolerant, highly available distributed systems
• Optimize systems for high concurrency and real-time execution

Your Engineering Stack

Tech/ToolsPython / GolangBuilding core backend services and logic-heavy systemsAWS / GCPDeploying and scaling distributed backend infrastructureKafka / RabbitMQHandling asynchronous processing and event-driven workflows

The Bar

SignalCore Backend Experience2–3 years of hands-on experience building APIs, backend systems, and scalable servicesProblem-Solving AbilityStrong fundamentals in data structures, algorithms, and logical thinkingSystem Design UnderstandingAbility to design scalable backend systems with clear architectural thinkingOwnership & ExecutionExperience owning backend features end-to-end in a fast-paced environment

The Interview Loop · Screening for the Top 1%

RoundsRound I · Recruiter ScreenEvaluation of backend experience, problem-solving approach, and project depthRound II · Hiring ManagerDeep dive into backend projects, APIs, databases, and system design thinkingRound III · Domain LeadLive coding + backend problem-solving + discussion on scalability and distributed systemsFinal · LeadershipCulture fit, ownership mindset, and ability to operate in a high-velocity startup environment

Your Growth Trajectory TestMu AI is a high-growth environment where we promote based on complexity solved, not years of tenure. As a Backend Developer, you have a massive runway to scale from an Individual Contributor (IC) into a core Engineering Leadership role, working alongside pioneers in agentic intelligence.

Perks of the Future

• Health & Wellness: 100% premium covered insurance for you + family (spouse, kids, parents) with annual check-ups.
• Fuel for Innovation: Fresh, daily gourmet lunch and dinner served at our Noida HQ.
• Seamless Transit: Safe, GPS-enabled cab facilities for eligible shifts (home-office-home).
• POD Culture: Dedicated quarterly budgets for team-building, offsites, and collaborative celebrations.

Candidate must have 6+ years of backend engineering experience, with 1–2 years leading engineers or owning major systems.

Candidate must be from a product-based organization with a startup mindset.

Must be strong in one core backend language: Node.js, Go, Java, or Python.

Deep understanding of distributed systems, caching, high availability, and microservices architecture.

Hands-on experience with AWS/GCP, Docker, Kubernetes, and CI/CD pipelines.

Strong command over system design, data structures, performance tuning, and scalable architecture

Ability to partner with Product, Data, Infrastructure, and lead end-to-end backend roadmap execution.

As a Backend Engineer you will be responsible for creating REST APIs which are used to drive the User Interface. Given the nature of the application, these APIs need to be very efficient and high performing. This requires optimizing queries for faster execution and introducing database changes that may be required. We are looking for individuals with great attention to detail, who are genuine, confident, committed and not only passionate about technology, but excited to work in a fun and friendly start-up environment. The ideal candidate will be passionate about technology and GETTING IT DONE.

Responsibilities:

• Develop, test, implement and maintain application software
• Take part in software and architectural development activities
• Debug application issues and helping support respond to client queries
• Participate in application development meetings
• Provide accurate estimates, clearly communicate status of tasks and identification of risks
• Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
• Performance tuning of application code at different service levels
• Interact with customers of the application and help address issues reported

Requirements:

• Bachelor's degree in Computer Science or equivalent
• 3+ years of experience with Java and Spring frameworks.
• Having good knowledge in a scripting language like python is a plus
• Experience with Spring and Hibernate/ ORM
• Understanding of relational database and normal forms
• Understanding of NoSQL / RDBMS (Mongo or Postgres) and ability to write optimized and high performing queries
• Strong understanding of Java concurrency, concurrency patterns, experience building thread safe code
• Experience building RESTful web services
• Strong written and verbal communication skills
• Strong interpersonal skills and time management skills
• Strong problem solving and analytical skills
• Experience with GIT as a VCS, Unix based systems
• Experience with NoSQL Database is a plus
• Following are a set of 'good to have' skills React AWS Bitbucket, JIRA

• 4 to 8 years of industry experience in (JAVA, Spring Boot , Microservices)
• Ability to effectively manage task distribution
• Able to adapt to changing business requirements and react quickly
• Strong customer focus and results-oriented attitude. Self-motivated individual & able to work independently

Requirements:

• Energetic self-starter, with a desire to work in a startup environment.
• Proficient in advanced Java programming skills.
• Expert in Application development cloud/on premise end to end. Middle layer, DB layer.
• Nice to have understanding on MQ and DB
• Good hands on in Complex Event Processing systems.
• Solved scale and performance issues while dealing with huge sets of data. Pre compute or data aggregation frameworks to achieve good response time.
• Real world experience working with large datasets and NoSQL database technologies
• Experience of debugging applications running on Unix like systems (e.g. Ubuntu, CentOS)
• Experience developing RESTful APIs for complex data sets
• Knowledge of container based development & deployment (e.g. Dockers, rkt)
• Expertise in software security domain, a plus

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.

What You’ll Do

• Experience working in eCommerce industry managing high volume applications with an experience of 7 yrs or more. 
• Expertise in application development with IBM (Sterling) Order Management Fulfillment Suite with a minimum of 4 to 5 yrs of experience. 
• Implementation Experience in Sterling order management with versions greater than 9.0 is preferred. Experience in XML, XSD, SOAP and REST services. 
• Expertise in at least one application server; Websphere MQ or JBoss or Weblogic.
• Subject matter expertise in building large-scale retail B2C web applications using Supply Chain and Logistics Systems. 
• IBM Sterling Order Management System Configuration Deployment Toolkit (Sterling CDT), Global Inventory Visibility. Caching technologies is a plus. 
• Comprehensive SDLC experience including strong design skills use of UML, patterns. 
• Agile and waterfall implementation principles and practices. 
• Use of version control management such of SVN, CVS, or GIT. 
• Production environment deployment and maintenance. 
• Provide support in troubleshooting / investigations pertaining to the order management systems. 
• Respond quickly to critical requests. 
• Ability to analyze and design data model. Solid hands-on understanding of DB for the Web environment. 
• Performance tuning and optimization for scalability and high availability. 
• Upgrading experience on IBM Sterling Order Management System to 9.3 or higher is a plus.
• Experience working on Omni Channel Implementations with IBM Sterling OMS is a plus. 
• Exposure towards Cassandra is a plus.  

What You Know

• Set your ECommerce skill set to work, helping to execute business requirements into specific systems, applications, or processes in business-to-consumer (B2C) environments. 
• Showcase your in-depth technical knowledge and functional knowledge in IBM Sterling OMS building confidence at client place. 
• Train and guide new team members on Sterling technical and business concepts. 
• Able to support in design or POC s to solve business problems in IBM Sterling OMS for new client initiatives. 
• Should be excited to work on projects that require both Sterling and Java/J2ee. 
• Build services around Sterling using Java, Rest and SOAP web services. Should be very strong in core Java.
• Should be having fair idea in building unit tests around the code implemented.
• Knowledge on continuous integration is needed.
• You will also ensure that the organization's implementations meet the scalability and reliability required for eCommerce operation, as well as analyze and optimize database and core commerce functions for maximum performance.

Education

• Bachelor’s / Master’s degree in specific technical fields like computer science, math, statistics preferred; or equivalent practical experience