Python Lead / Architect

Job Title: Python Developer (4–6 Years Experience)

Location: Mumbai (Onsite)

Experience: 4–6 Years

Salary: ₹50,000 – ₹90,000 per month (depending on experience & skill set)

Employment Type: Full-time

Job Description

We are looking for an experienced Python Developer to join our growing team in Mumbai. The ideal candidate will have strong hands-on experience in Python development, building scalable backend systems, and working with databases and APIs.

Key Responsibilities

• Design, develop, test, and maintain Python-based applications
• Build and integrate RESTful APIs
• Work with frameworks such as Django / Flask / FastAPI
• Write clean, reusable, and efficient code
• Collaborate with frontend developers, QA, and project managers
• Optimize application performance and scalability
• Debug, troubleshoot, and resolve technical issues
• Participate in code reviews and follow best coding practices
• Work with databases and ensure data security and integrity
• Deploy and maintain applications in staging/production environments

Required Skills & Qualifications

• 4–6 years of hands-on experience in Python development
• Strong experience with Django / Flask / FastAPI
• Good understanding of REST APIs
• Experience with MySQL / PostgreSQL / MongoDB
• Familiarity with Git and version control workflows
• Knowledge of OOP concepts and design principles
• Experience with Linux-based environments
• Understanding of basic security and performance optimization
• Ability to work independently as well as in a team

Good to Have (Preferred Skills)

• Experience with AWS / cloud services
• Knowledge of Docker / CI-CD pipelines
• Exposure to microservices architecture
• Basic frontend knowledge (HTML, CSS, JavaScript)
• Experience working in an Agile/Scrum environment

Job Type: Full-time

Application Question(s):

• If selected, how soon can you join?

Experience:

• Total: 3 years (Required)
• Python: 3 years (Required)

Location:

• Mumbai, Maharashtra (Required)

Work Location: In person

Job Summary:

We are seeking a motivated and skilled Founding Engineer to join our innovative team in Mumbai. This role offers a unique opportunity to help shape our technology and product direction, leveraging your expertise in full-stack development using React.js, Node.js, and MySQL.

Key Responsibilities:

• Design and implement user-friendly frontend applications using React to enhance user experience.
• Develop robust server-side applications and APIs with Node.js to support our business logic and data processing needs.
• Manage and optimize MySQL databases, ensuring data integrity and performance while querying and updating data.
• Collaborate closely with cross-functional teams including product management and UX/UI to deliver cohesive product features.
• Participate in code reviews and ensure adherence to best practices in software development, maintaining high-quality code.
• Assist in troubleshooting and debugging issues across the stack, ensuring a smooth operation of our applications.
• Contribute to the architecture and roadmap of our technology platform, helping to define future iterations based on user feedback.

Requirements:

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 1 to 4 years of experience in full-stack development with a focus on React.js, Node.js, and MySQL.
• Strong understanding of web technologies, including HTML, CSS, and JavaScript frameworks.
• Proficient in database management and design, particularly in MySQL.
• Excellent problem-solving skills and the ability to work in a fast-paced startup environment.
• Demonstrated ability to work collaboratively in a team and communicate technical concepts clearly.
• Passion for building innovative and scalable applications that meet user needs.

About Us

21 Knots is a design, engineering, and consulting firm providing services to the global maritime and oil & gas industry. In an industry constantly evolving due to dynamic regulations, economic fluctuations, and climate change mandates, we strive to deliver cutting-edge solutions with an unwavering commitment to excellence. Our comprehensive services are designed to create value for our esteemed clients while enabling them to achieve their business goals.

The Role

We’re looking for a skilled and motivated Software Developer to join our team at 21 Knots. Someone with backend development with a working knowledge of frontend technologies. The ideal candidate will have a strong command of backend frameworks such as Django, FastAPI, or Flask, and familiarity with frontend tools like HTML, CSS, JavaScript, and optionally React, Angular, or Vue. You will play a key role in building, maintaining, and optimizing scalable software solutions while collaborating with a team

Responsibilities

• Develop,test, and maintain backend services using Django, FastAPI, or Flask.
• Design and implement RESTful APIs for web and internal tools.
• Work with relational and non-relational databases such as PostgreSQL, MySQL, or MongoDB.
• Optimize application performance and implement backend security best practices.
• Collaborate with frontend developers, designers, and cross-functional teams to deliver high-quality solutions.
• Write clean, maintainable, and well-documented code.
• Support basic frontend development tasks using HTML, CSS, and JavaScript.
• Work with modern frontend frameworks like React.js, Angular, or Vue (good to have).

What You’ll Need

Experience:

• 1–4 years of hands-on experience in backend development.
• Exposure to full-stack development environments.
• Experience working with RESTful APIs, databases, and cloud integration is a plus.

Education:

• Bachelor’s degree in Computer Science, Information Technology, or a related field.

Tools & Software Proficiency:

• Proficiency in Django, FastAPI, or Flask.
• Familiarity with PostgreSQL, MySQL, or MongoDB.
• Basic knowledge of frontend technologies: HTML, CSS, JavaScript.
• Exposure to Bootstrap or Tailwind CSS for responsive UI design.
• Good to have: experience with React, Angular, or Vue.
• Familiarity with cloud platforms (AWS, Azure, or GCP) and Agile/Scrum methodologies is an added advantage.

Skills & Competencies:

• Strong problem-solving and debugging skills.
• Understanding of RESTful architecture and secure coding practices.
• Ability to collaborate in a cross-functional environment.
• Good verbal and written communication skills.

Area of professional exposure (functional/technical skills) :

· Hands-on experience with Google Cloud Platform (GCP) Services (Data Flow/Cloud Run/Big Query/Cloud SQL Server/GCS etc.)

· Experience in deploying to GCP environments (Cloud Run/CaaS/OpenShift/Containerization)

· Experience with Continuous Integration/Continuous Delivery tools and pipelines – Tekton, Terraform and Jenkins

· Experience with Java/J2EE frameworks, Web development and REST APIs/microservices development (Spring Boot, Spring Cloud)

· Good exposure to GCP application developments.

· Hands-on experience with Angular (front-end development)

· Experience in using build tools like Gradle, Maven and Ant etc.

· Experience with GitHub or equivalent source control repositories

· Experience in developing data processing tasks using Spark/PySpark

· Good working knowledge of relational databases like MS SQL, Oracle etc.

• Must have 3+ years of hands-on experience in web development using core PHP,Wordpress, CodeIgniter etc
• Must have hands-on experience in front-end using JavaScript (ES6+), HTML, CSS etc.
• Must have experience with design patters such as RESTful, AJAX, and jQuery
• Experience in building responsive web pages
• Proficient understanding of code versioning tools, such as Git
• Should have working knowledge of MySQL database system
• Should have basic programming skills using object-oriented programming (OOP) languages with in-depth knowledge of common APIs and data structures

• Write well designed, testable, efficient quality code.
• Ensure designs are in compliance with specifications.
• Developing and implementing strong algorithms/techniques for solving problems in a
• Frameworks are good, but you should be able to function without them.
• Test and deploy applications and systems.
• Revise, update, refactor, debug code and improve existing software.

A network of the world's best developers - full-time, long-term remote software jobs with better compensation and career growth.  We enable our clients to accelerate their Cloud Offering, and Capitalize on Cloud.  We have our own IOT/AI platform and we provide professional services on that platform to build custom clouds for their IOT devices.  We also build mobile apps, run 24x7 devops/site reliability engineering for our clients.

You will be working on AI/IOT cloud and responsible for architecture and hands on coding. 
We need someone who can engage in conversations about technical architecture with internal teams and external customers. Write well designed, testable, efficient code by using the best software.

We are looking for a Senior full-stack preferred with a demonstrated track

record of developing and maintaining production services, innovative thinking, and technical

excellence. As a senior engineer, you will be responsible for the end-to-end ownership of

systems, from conception to launch and maintenance. You should have a solid understanding of

software development lifecycle and software design principles.

.

This person MUST have:

• BE Computer Science, MCA or equivalent
• Cloud app development experience
• Strong Django and ReactJS experience
• Advanced knowledge of Python and relational databases
• Understanding of APIs, pagination, searching, sorting 
• Experience with building, modifying and extending API endpoints (REST or

GraphQL) for data retrieval and persistence.

• Creating high performance UI etc.
• Experience with SQL and NOSQL databases

• Experience with the full software development life cycle, including requirements

collection, design, implementation, testing, and operational support.

• Experience with scrum or other agile software development methodology.
• Excellent verbal and written communication, teamwork, decision making and

influencing skills.

Experience:

• Min 3 year experience
• Startup experience is a must. 

Location

• Remotely, anywhere in India

Timings:

• 40 hours a week but with 4 hours a day overlapping with client timezone. 
  Typically clients are in California PST Timezone.

Position:

• Full time/Direct
• We have great benefits such as PF, medical insurance, 12 annual company holidays, 12 PTO leaves per year, annual increments, Diwali bonus, spot bonuses and other incentives etc.
• We dont believe in locking in people with large notice periods.  You will stay here because you love the company.  We have only a 15 days notice period.