Senior Backend Developer (Python)

Job Title: Python Backend Engineer (Full-time)

Location: Gurgaon, Onsite

Working Days: 5 days

Experience Required: 4+ Years

Interview: Screening and Face-to-face Interview

Job Summary

We are looking for a Python Backend Engineer with strong experience in FastAPI/Django and hands-on exposure to MLOps and LLMOps. You will work on building APIs, deploying ML/LLM models, and enabling intelligent systems using modern AI tools and frameworks.

Responsibilities

• Build and maintain scalable backend systems using Python, FastAPI, or Django
• Deploy and manage ML models (e.g., OpenCV, scikit-learn) and LLMs in production
• Develop APIs for ML/LLM inference and support RAG pipelines
• Implement model versioning, CI/CD, and monitoring for production use
• Collaborate with AI teams to integrate models into applications

Skills Required

• Strong Python backend development (FastAPI/Django)
• Experience with ML libraries: scikit-learn, OpenCV, NumPy, Pandas
• MLOps tools: MLflow, DVC, Airflow, Docker, Kubernetes
• LLMOps tools: LangChain, LlamaIndex, RAG pipelines, FAISS, Pinecone
• Integration experience with OpenAI, Hugging Face, or other LLM APIs
• Familiarity with CI/CD tools (GitHub Actions, Jenkins)

Role Overview:

We are looking for a skilled Golang Developer with 3.5+ years of experience in building scalable backend services and deploying cloud-native applications using AWS. This is a key position that requires a deep understanding of Golang and cloud infrastructure to help us build robust solutions for global clients.

Key Responsibilities:

• Design and develop backend services, APIs, and microservices using Golang.
• Build and deploy cloud-native applications on AWS using services like Lambda, EC2, S3, RDS, and more.
• Optimize application performance, scalability, and reliability.
• Collaborate closely with frontend, DevOps, and product teams.
• Write clean, maintainable code and participate in code reviews.
• Implement best practices in security, performance, and cloud architecture.
• Contribute to CI/CD pipelines and automated deployment processes.
• Debug and resolve technical issues across the stack.

Required Skills & Qualifications:

• 3.5+ years of hands-on experience with Golang development.
• Strong experience with AWS services such as EC2, Lambda, S3, RDS, DynamoDB, CloudWatch, etc.
• Proficient in developing and consuming RESTful APIs.
• Familiar with Docker, Kubernetes or AWS ECS for container orchestration.
• Experience with Infrastructure as Code (Terraform, CloudFormation) is a plus.
• Good understanding of microservices architecture and distributed systems.
• Experience with monitoring tools like Prometheus, Grafana, or ELK Stack.
• Familiarity with Git, CI/CD pipelines, and agile workflows.
• Strong problem-solving, debugging, and communication skills.

Nice to Have:

• Experience with serverless applications and architecture (AWS Lambda, API Gateway, etc.)
• Exposure to NoSQL databases like DynamoDB or MongoDB.
• Contributions to open-source Golang projects or an active GitHub portfolio.

The candidate should have extensive experience in designing and developing scalable data pipelines and real-time data processing solutions. As a key member of the team, the Senior Data Engineer will play a critical role in building end-to-end data workflows, supporting machine learning model deployment, and driving MLOps practices in a fast-paced, agile environment. Strong expertise in Apache Kafka, Apache Flink, AWS SageMaker, and Terraform is essential. Additional experience with infrastructure automation and CI/CD for ML models is a significant advantage.

Key Responsibilities

1. Design, develop, and maintain high-performance ETL and real-time data pipelines using Apache Kafka and Apache Flink.
2. Build scalable and automated MLOps pipelines for training, validation, and deployment of models using AWS SageMaker and associated services.
3. Implement and manage Infrastructure as Code (IaC) using Terraform to provision and manage AWS environments.
4. Collaborate with data scientists, ML engineers, and DevOps teams to streamline model deployment workflows and ensure reliable production delivery.
5. Optimize data storage and retrieval strategies for large-scale structured and unstructured datasets.
6. Develop data transformation logic and integrate data from various internal and external sources into data lakes and warehouses.
7. Monitor, troubleshoot, and enhance performance of data systems in a cloud-native, fast-evolving production setup.
8. Ensure adherence to data governance, privacy, and security standards across all data handling activities.
9. Document data engineering solutions and workflows to facilitate cross-functional understanding and ongoing maintenance.

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Requirements and skills:

· 3+ Years of software development experience

· Strong in data structures and algorithms

· Solid understanding of Linux development environment and systems

· Expert level knowledge of Python along with frameworks some application framework

· Prior experience with WebRTC and video streaming protocols like RTMP, RTP and payloads

· Prior experience of h264, h265, vp8, vp9 and av1 encoders and decoders

· Prior experience with GStreamer pipelines

· Knowledge of C++ and proxy servers such as NGNIX is an added advantage

· Proficient in writing unit test cases using the Pytest framework.

· Expert level knowledge of SQL databases like MySQL

· Understanding of microservices architecture

· Knowledge of AWS cloud services like EC2, S3, Lambda etc.

Job Description:

We are looking for a Python Developer to join our team and help us

develop and maintain various software products. A self-driven coder with a zeal to

learn and work on multiple projects. Ultimately responsible for building highly

responsive web applications that align with our business needs.

Required Skills:

1. Extensive experience developing enterprise applications using Python.

2. Extensive experience in designing applications using the framework Django Flask.

3. Must have good hands-on Django and Django Rest Framework for web

framework.

4. Familiarity with some ORM (Object Relational Mapper) libraries.

5. Able to integrate multiple data sources and databases into one system

6. Understanding of the threading limitations of Python, and multi-process

architecture.

7. Basic understanding of web mark-up, front-end technologies such as JavaScript,

HTML5, and CSS3 .

8. Extensive experience with MySQL or any relational database.

9. Familiarity with event-driven programming in Python.

10. Must be well versed with Docker.

11. Understanding of the differences between multiple delivery platforms, such as

mobile vs desktop, and optimizing output to match the specific platform.

12. Strong unit test and debugging skills.

13. Knowledge of AI, and chat GPT will be added.

14. Should have experience in LANG Chain.

15. Proficient understanding of code versioning tools.

16. Must have basic knowledge of Machine Learning or Bots & and work experience is a plus.

Roles and Responsibilities:

1. Should be responsible for the development of applications in Python (Framework).

2. Integration of user-facing elements developed by front-end developers with server-side logic.

3. Will be mainly responsible for developing with Django & Flask framework.

4. Will be responsible for writing reusable, testable, and efficient code.

5. Will be working in a team or individually as per the requirement.

6. Can also be involved in client handling, and requirement gathering as per the demand of the project.

7. Prime focus will be ensuring high performance and responsiveness to requests from the front-end

Role: Python-Django Developer 

Location: Noida, India

Description:

• Develop web applications using Python and Django.
• Write clean and maintainable code following best practices and coding standards.
• Collaborate with other developers and stakeholders to design and implement new features.
• Participate in code reviews and maintain code quality.
• Troubleshoot and debug issues as they arise.
• Optimize applications for maximum speed and scalability.
• Stay up-to-date with emerging trends and technologies in web development.

Requirements:

• Bachelor's or Master's degree in Computer Science, Computer Engineering or a related field.
• 4+ years of experience in web development using Python and Django.
• Strong knowledge of object-oriented programming and design patterns.
• Experience with front-end technologies such as HTML, CSS, and JavaScript.
• Understanding of RESTful web services.
• Familiarity with database technologies such as PostgreSQL or MySQL.
• Experience with version control systems such as Git.
• Ability to work in a team environment and communicate effectively with team members.
• Strong problem-solving and analytical skills.

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)

Job Responsibilities
● Implement and maintain Django-based applications

● Use server-side logic to integrate user-facing elements.

● Develop software related to asset management

● Write and implement software solutions that integrate different systems.

● Identify and suggest various opportunities to improve efficiency and functionality.

● Coordinating the workflow between the graphic designer, the HTML coder, and yourself

● Creating self-contained, reusable, and testable modules and components

● Continuously discover, evaluate, and implement new technologies to maximize development efficiency.

● Unit-test code for robustness, including edge cases, usability, and general reliability.

● Should have the ability to work with old and new versions of django.

● Understand existing code base and adapt to business needs as required

Required Skills
● 3 years experience in software industry

● Minimum 2 year experience in Python

● Minimum 1 Year experience in Django

● Basic understanding of front end technologies like HTML, CSS, JavaScript and jQuery

● Ability to build user interfaces using the latest web standards

● Familiarity with event-driven programming in Python

● Able to create database schemas that represent and support business processes

● Strong unit test and debugging skills

● Experience working in Linux

● Excellent problem solving skills

● Excellent verbal and written communication skills

● Ability to work well in a team development environment