Backend Developer

Job Title : Python Backend Engineer (with MLOps & LLMOps Experience)

Experience : 4 to 8 Years

Location : Gurgaon Sector - 43

Employment Type : Full-time

Job Summary :

We are looking for an experienced Python Backend Engineer with a strong background in FastAPI, Django, and hands-on exposure to MLOps and LLMOps practices.

The ideal candidate will be responsible for building scalable backend solutions, integrating AI/ML models into production environments, and implementing efficient pipelines for machine learning and large language model operations.

Mandatory Skills : Python, FastAPI, Django, MLOps, LLMOps, REST API development, Docker, Kubernetes, Cloud (AWS/Azure/GCP), CI/CD.

Key Responsibilities :

• Develop, optimize, and maintain backend services using Python (FastAPI, Django).
• Design and implement API endpoints for high-performance and secure data exchange.
• Collaborate with data science teams to deploy ML/LLM models into production using MLOps/LLMOps best practices.
• Build and manage CI/CD pipelines for ML models and ensure seamless integration with backend systems.
• Implement model monitoring, versioning, and retraining workflows for machine learning and large language models.
• Optimize backend performance for scalability and reliability in AI-driven applications.
• Work with Docker, Kubernetes, and cloud platforms (AWS/Azure/GCP) for deployment and orchestration.
• Ensure best practices in code quality, testing, and security for all backend and model deployment workflows.

Required Skills & Qualifications :

• 4 to 8 years of experience as a Backend Engineer with strong expertise in Python.
• Proficient in FastAPI and Django frameworks for API and backend development.
• Hands-on experience with MLOps and LLMOps workflows (model deployment, monitoring, scaling).
• Familiarity with machine learning model lifecycle and integration into production systems.
• Strong knowledge of RESTful APIs, microservices architecture, and asynchronous programming.
• Experience with Docker, Kubernetes, and cloud environments (AWS, Azure, or GCP).
• Exposure to CI/CD pipelines and DevOps tools.
• Good understanding of Git, version control, and testing frameworks.

Nice to Have :

• Experience with LangChain, Hugging Face, or similar LLM frameworks.
• Knowledge of data pipelines, feature engineering, and ML frameworks (TensorFlow, PyTorch, etc.).
• Understanding of vector databases (Pinecone, Chroma, etc.).

Education :

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

Job Title : Python Django Developer

Experience : 6+ Years

Location : Gurgaon (Work from Office)

Job Type : Full-time

Working Days: Monday to Friday (5 Days)

Timings: 9:30 AM – 6:30 PM

Job Summary :

We are seeking a highly skilled and experienced Python Django Developer to join our dynamic team in Gurgaon.

The ideal candidate will have a strong background in backend development, Django frameworks, and RESTful API integration.

You will be responsible for building and maintaining scalable web applications and collaborating with cross-functional teams.

Key Responsibilities :

• Develop, test, and maintain robust, scalable, high-performance web applications using Django and Python.
• Design and implement RESTful APIs and integrate third-party APIs and services.
• Write reusable, testable, and efficient code following best practices and coding standards.
• Work with frontend developers to integrate user-facing elements using server-side logic.
• Optimize applications for maximum speed and scalability.
• Perform code reviews, troubleshoot issues, and ensure application performance and security.
• Collaborate with product managers, designers, and other developers to deliver high-quality products.

Required Skills & Qualifications :

• 6+ Years of hands-on experience with Python and Django framework.
• Strong experience with RESTful APIs, Django ORM, and PostgreSQL/MySQL.
• Proficiency in version control systems like Git.
• Familiarity with frontend technologies such as HTML, CSS, JavaScript, and AJAX.
• Experience with Docker, Celery, Redis, and cloud platforms (AWS/Azure) is a plus.
• Solid understanding of software development principles and design patterns.
• Excellent problem-solving skills and attention to detail.
• Strong communication and collaboration abilities.

Good to Have :

• Experience with Django REST Framework (DRF).
• Knowledge of unit testing and CI/CD pipelines.
• Exposure to Agile development methodologies.
• Familiarity with containerization and deployment tools (Docker, Kubernetes).

About us:

HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.

We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.

To know more, Visit! - https://www.happyfox.com/

We’re looking for a Lead Backend Engineer with 5+ years of experience in building web services to join our engineering team to help architect, build and run our growing list of products. You should have prior experience being responsible for building sufficiently complex products/services and mentoring software engineers.

Responsibilities: 

• Lead a team of engineers working on our product roadmap. You are expected to contribute to feature development with hands-on development tasks
• Oversee software architecture, source control workflows, and CI/CD processes and perform code reviews to ensure exceptional code quality
• Improve the development experience and the quality of the codebase. You will define and uphold best practices and coding standards for the team
• Responsible for architecture and design decisions
• Own stability and performance of the service that you work on
• Work with the Engineering Manager to ship stable software on time
• Contribute to the vision and long-term strategy in your area of expertise

Requirements: 

• 2+ years of experience in a technical lead role designing and building complex backend systems
• 5+ years of professional software development experience
• Excellent knowledge of best practices and coding patterns
• Deep knowledge of backend programming languages like Python and web application frameworks like Django
• Solid experience in building web services using relational databases like PostgreSQL or NoSQL databases like MongoDB
• Proficiency with Amazon Web Services (AWS) or Google Cloud Platform or Azure
• Extensive experience with Linux/UNIX production environments
• Strong sense of quality in terms of both program architecture and code style
• Passion to dig into technically complex problems to troubleshoot and figure out a solution
• Desire to continuously improve and ship the best quality product
• Pragmatic approach to make sure technical decisions align with actual business needs. 
• Good understanding of the trade-offs when building for product value, reliability, or performance
• Excellent communication skills with the ability to discuss and explain your point of view clearly and effectively
• An engineering degree is a must(B.E. CS preferred)

Responsibilities: 
Developing and maintaining all server-side network components. 
Ensuring optimal performance of the central database and responsiveness to front-end requests. 

Collaborating with front-end developers on the integration of elements. 

Designing back-end services for various business processes.ses. 

Developing high-performance applications by writing testable, reusable, and efficient code. 

Implementing effective security protocols, data protection measures, and storage solutions. 

Running diagnostic tests, repairing defects, and providing technical support. 

Documenting Node.js processes, including database schemas, as well as preparing reports. 

Recommending and implementing improvements to processes and technologies. 

Keeping informed of advancements in the field of Node.js development. 

Skills: 

Bachelor's degree in computer science, information science, or similar. 

At least two years' experience as a Node.js developer. 

Extensive knowledge of JavaScript, web stacks, libraries, and frameworks. 

Knowledge of front-end technologies such as HTML5 and CSS3. 

Superb interpersonal, communication, and collaboration skills. 

Exceptional analytical and problem-solving aptitude. 

Great organizational and time management skills. 

Availability to resolve urgent web application issues outside of business hours. 

1. 1.5+ Years of experience in .Net, ASP.Net and C#, WCF/API and REST services.
2. Should be able to write clean and good scalable code.
3. Hands on experience with CSS, JavaScript and jQuery
4. Strong knowledge in OOPS concepts.
5. Knowledge of T SQL with SQL server 2008 R2/2012 including Stored Procedures, Triggers & User Defined Functions.
6. Good to have CSS3 and HTML5 knowledge.
7. Good analytical and communication skills are required.
8. Preference will be given to the candidates who can do client interaction.

Must have skills :

JAVA 8, Apache Camel, Design Patterns, Web Services (REST), RabbitMQ, Build Tool (Maven or Gradle), Version Control (SVN or Git), SQL/PLSQL, Javascript, HTML, CSS, JQuery, Application Server (Websphere/JBoss/Weblogic etc.), JUnit.

Preferred skills :

- Spring, Spring MVC, Spring Boot, Hibernate/Spring Data JPA, .

- Experience working on Node JS/Angular JS/React JS

- Working experience on Docker

- Experience working on Agile methodologies

 B.E/B.Tech/M.C.A/M.Sc(Computer science ) with first division.

- AWS Cloud exposure.

- Basic skills in using the Unix operating system logging on, sudo to another ID, navigating directory structures, debugging simple problems.

- Hands-on experience with building enterprise applications.

- Excellent trouble-shooting skills.

- Thoroughly understanding business problems and the business domain, and how potential solutions may address problems and enhance business capabilities.

- Experience in designing/development (design patterns) and testing of enterprise class systems.

- Good written and verbal communication skills.

- Ability to adapt to changing requirements.

- Ability to take direction and work with minimal supervision.

- Ability to work in deadline driven environment, and respond creatively to pressure.

- Ability to work on multiple projects simultaneously.