Python Django Developer

Key Responsibilities:

• Design and develop backend components and sub-systems for large-scale platforms under guidance from senior engineers.
• Contribute to building and evolving the next-generation customer data platform.
• Write clean, efficient, and well-tested code with a focus on scalability and performance.
• Explore and experiment with modern technologies—especially open-source frameworks—
• and build small prototypes or proof-of-concepts.
• Use AI-assisted development tools to accelerate coding, testing, debugging, and learning while adhering to engineering best practices.
• Participate in code reviews, design discussions, and continuous improvement of the platform.

Qualifications:

• 0–2 years of experience (or strong academic/project background) in backend development with Java.
• Good fundamentals in algorithms, data structures, and basic performance optimizations.
• Bachelor’s or Master’s degree in Computer Science or IT (B.E / B.Tech / M.Tech / M.S) from premier institutes.

Technical Skill Set:

• Strong aptitude and analytical skills with emphasis on problem solving and clean coding.
• Working knowledge of SQL and NoSQL databases.
• Familiarity with unit testing frameworks and writing testable code is a plus.
• Basic understanding of distributed systems, messaging, or streaming platforms is a bonus.

AI-Assisted Engineering (LLM-Era Skills):

• Familiarity with modern AI coding tools such as Cursor, Claude Code, Codex, Windsurf, Opencode, or similar.
• Ability to use AI tools for code generation, refactoring, test creation, and learning new systems responsibly.
• Willingness to learn how to combine human judgment with AI assistance for high-quality engineering outcomes.

Soft Skills & Nice to Have

• Appreciation for technology and its ability to create real business value, especially in data and marketing platforms.
• Clear written and verbal communication skills.
• Strong ownership mindset and ability to execute in fast-paced environments.
• Prior internship or startup experience is a plus.

About Us:

Tradelab Technologies Pvt Ltd is not for those seeking comfort—we are for those hungry to make a mark in the trading and fintech industry. If you are looking for just another backend role, this isn’t it. We want risk-takers, relentless learners, and those who find joy in pushing their limits

every day. If you thrive in high-stakes environments and have a deep passion for performance driven backend systems, we want you.

What You Will Do:

• We’re looking for a Backend Developer (Python) with a strong foundation in backend technologies and a deep interest in scalable, low-latency systems.

• You should have 3–4 years of experience in Python-based development and be eager to solve complex performance and scalability challenges in trading and fintech applications.

• You measure success by your own growth, not external validation.

• You thrive on challenges, not on perks or financial rewards.

• Taking calculated risks excites you—you’re here to build, break, and learn.

• You don’t clock in for a paycheck; you clock in to outperform yourself in a high-frequency trading environment.

• You understand the stakes—milliseconds can make or break trades, and precision is everything.

What We Expect:

• Develop and maintain scalable backend systems using Python.

• Design and implement REST APIs and socket-based communication.

• Optimize code for speed, performance, and reliability.

• Collaborate with frontend teams to integrate server-side logic.

• Work with RabbitMQ, Kafka, Redis, and Elasticsearch for robust backend design.

• Build fault-tolerant, multi-producer/consumer systems.

Must-Have Skills:

• 3–4 years of experience in Python and backend development.

• Strong understanding of REST APIs, sockets, and network protocols (TCP/UDP/HTTP).

• Experience with RabbitMQ/Kafka, SQL & NoSQL databases, Redis, and Elasticsearch.

• Bachelor’s degree in Computer Science or related field.

Nice-to-Have Skills:

• Past experience in fintech, trading systems, or algorithmic trading.

• Experience with GoLang, C/C++, Erlang, or Elixir.

• Exposure to trading, fintech, or low-latency systems.

• Familiarity with microservices and CI/CD pipelines.

hiring for the position of Backend Developer / Senior Backend Developer responsible for managing back-end services and the interchange of data between the server and the users.

Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.

We are looking to recruit a candidate for a role that will require:

• Create and consume restful APIs
• Design, develop, and maintain internal and external applications
• Build efficient, testable, and reusable modules
• Write high quality, structured application/interface code and documentation
• Identify solutions through research and collaboration that resolves the root of problems as they arise
• Define functional and technical requirements for application software to develop skills and knowledge
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql 

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

∙ Good to have knowledge of AWS, Redis, ElasticSearch

Education: Min. Graduate in related discipline

Work experience: 2 years relevant experience

What we want to accomplish and why we need you?

Jio Haptik is an AI leader having pioneered AI-powered innovation since 2013. Reliance Jio Digital Services acquired Haptik in April 2019. Haptik currently leads India’s AI market having become the first to process 15 billion+ two-way conversations across 10+ channels and in 135 languages. Haptik is also a Category Leader across platforms including Gartner, G2, Opus Research & more. Recently Haptik won the award for “Tech Startup of the Year” in the AI category at Entrepreneur India Awards 2023, and gold medal for “Best Chat & Conversational Bot” at Martequity Awards 2023. Haptik has a headcount of 200+ employees with offices in Mumbai, Delhi, and Bangalore.

What will you do everyday?

As a backend engineer you will be responsible for building the Haptik platform which is used by people across the globe. You will be responsible for developing, architecting and scaling the systems that support all the functions of the Haptik platform. While you know how to work hard, you also know how to have fun at work and make friends with your colleagues. 

Ok, you're sold, but what are we looking for in the perfect candidate?

Develop and maintain expertise in backend systems and API development, ensuring seamless integrations and scalable solutions, including:

• Strong expertise in backend systems, including design principles and adherence to good coding practices.
• Proven ability to enhance or develop complex tools at scale with a thorough understanding of system architecture.
• Capability to work cross-functionally with all teams, ensuring seamless implementation of APIs and solutioning for various tools.
• Skilled in high-level task estimation, scoping, and breaking down complex projects into actionable tasks.
• Proficiency in modeling and optimizing database architecture for enhanced performance and scalability.
• Experience collaborating with product teams to build innovative Proof of Concepts (POCs).
• Ability to respond to data requests and generate reports to support data-driven decision-making.
• Active participation in code reviews, automated testing, and quality assurance processes.
• Experience working in a scrum-based agile development environment.
• Commitment to staying updated with technology standards, emerging trends, and software development best practices.
• Strong verbal and written communication skills to facilitate collaboration and clarity.

Requirements*:

• A minimum of 5 years of experience in developing scalable products and applications.
• Must Have Bachelor's degree in Computer Engineering or related field.
• Proficiency in Python and expertise in at least one backend framework, with a preference for Django.
• Hands-on experience designing normalized database schemas for large-scale applications using technologies such as MySQL, MongoDB, or Elasticsearch.
• Practical knowledge of in-memory data stores like Redis or Memcached.
• Familiarity with working in agile environments and exposure to tools like Jira is highly desirable.
• Proficiency in using version control systems like Git.
• Strong communication skills and the ability to collaborate effectively in team settings.
• Self-motivated with a strong sense of ownership and commitment to delivering results.
• Additional knowledge of RabbitMQ, AWS/Azure services, Docker, MQTT, Lambda functions, Cron jobs, Kibana, and Logstash is an added advantage.
• Knowledge of web servers like Nginx/Apache is considered a valuable asset.
• 
  

* Requirements is such a strong word. We don’t necessarily expect to find a candidate that has done everything listed, but you should be able to make a credible case that you’ve done most of it and are ready for the challenge of adding some new things to your resume. 

Tell me more about Haptik

• On a roll: Announced major strategic partnership with Jio. 
• Great team: You will be working with great leaders who have been listed in Business World 40 Under 40, Forbes 30 Under 30 and MIT 35 Under 35 Innovators. 
• Great culture: The freedom to think and innovate is something that defines the culture of Haptik. Every person is approachable. While we are working hard, it is also important to take breaks to not get too worked up. 
• Huge market: Disrupting a massive, growing chatbot market. The global market is projected to attain a valuation of US $0.94 bn by the end of 2024 progressing from US $0.11 bn earned in 2015. 
• Great customers: Businesses across industries - Samsung, HDFCLife, Times of India are some that have relied on Haptik's Conversational AI solutions to engage, acquire, service and understand customers. 
• Impact: A fun and exciting start-up culture that empowers its people to make a huge impact. 

Working hard for things that we don't care about is stress, but working hard for something we love is called passion! At Haptik we passionately solve problems in order to be able to move faster and don't shy away from breaking things! 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge in postgre
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app

We are seeking a skilled NestJS/PostgreSQL Developer to join our development team. As a NestJS/PostgreSQL Developer, you will be responsible for designing and implementing server-side applications, APIs, and databases using NestJS framework and PostgreSQL. You will work closely with other developers, stakeholders, and project managers to deliver high-quality software solutions.

Responsibilities:

1. Develop server-side applications and APIs using the NestJS framework.
2. Design and implement efficient and scalable database schemas using PostgreSQL.
3. Collaborate with front-end developers to integrate server-side logic with the user interface.
4. Write clean and maintainable code following best practices and coding standards.
5. Conduct code reviews and provide constructive feedback to improve code quality.
6. Optimize application performance and troubleshoot any issues or bugs.
7. Work closely with stakeholders to understand requirements and translate them into technical solutions.
8. Participate in the entire software development lifecycle, including planning, designing, coding, testing, and deployment.
9. Stay up-to-date with the latest trends and technologies in web development, NestJS, and PostgreSQL.

Requirements:

1. Bachelor's degree in Computer Science, Engineering, or a related field.
2. Proven experience (2-5 years) in server-side application development using NestJS framework.
3. Strong knowledge of TypeScript and JavaScript.
4. Experience with PostgreSQL or other relational databases.
5. Proficiency in building and consuming RESTful APIs.
6. Familiarity with Git version control system.
7. Good understanding of software development principles, design patterns, and best practices.
8. Excellent problem-solving and debugging skills.
9. Strong communication and collaboration skills.
10. Ability to work independently as well as in a team environment.

Preferred Qualifications:

1. Experience with other JavaScript frameworks such as Angular or React.
2. Knowledge of microservices architecture and containerization (e.g., Docker).
3. Familiarity with cloud platforms like AWS, Azure, or GCP.
4. Experience with testing frameworks (e.g., Jest, Jasmine).
5. Understanding of Agile/Scrum development methodologies.