
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.

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About the Role:
We are seeking a talented and motivated L2 Software Development Engineer to join our dynamic team. As an L2 engineer, you will be responsible for designing, developing, and maintaining high-quality software solutions while working closely with cross-functional teams. Your role will include troubleshooting complex issues, implementing best practices, and contributing to the architecture and scalability of our systems.
Key Responsibilities:
- Design, develop, test, and maintain software solutions in accordance with business and technical requirements.
- Write clean, efficient, and well-documented code, following industry standards and best practices.
- Collaborate with cross-functional teams including product managers, designers, and other engineers to deliver new features and improvements.
- Troubleshoot and resolve complex software issues across multiple systems and layers of the stack.
- Optimize application performance, scalability, and security.
- Conduct code reviews, mentor junior engineers, and contribute to continuous improvements in development processes.
- Participate in the full software development lifecycle (SDLC), from requirement gathering to deployment and monitoring.
- Stay updated with emerging trends and technologies in software development and actively contribute to process improvements.
- Document technical specifications, architecture, and development processes.
Skills and Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or related field.
- 1-2 years of experience in software development, with expertise in one or more programming languages (e.g., Python, Java, C++, JavaScript, etc.).
- Strong knowledge of object-oriented design, algorithms, and data structures.
- Experience with version control systems (e.g., Git) and familiarity with CI/CD pipelines.
- Solid understanding of databases (SQL and/or NoSQL) and API design (RESTful/GraphQL).
- Familiarity with cloud platforms (AWS, Azure, or GCP) and containerization technologies (Docker, Kubernetes) is a plus.
- Strong problem-solving skills with the ability to troubleshoot and resolve complex software issues.
- Excellent communication skills, both verbal and written, with the ability to collaborate effectively in a team environment.
- Experience working in an Agile development environment.
Preferred:
- Experience with front-end technologies (React, Angular, or Vue.js) or mobile development is a plus.
- Knowledge of DevOps practices and tools for automation and infrastructure management.
- Familiarity with testing frameworks and best practices in software testing (unit, integration, end-to-end testing).
- Experience working with microservices architecture and distributed systems.
Benefits:
- Competitive salary and benefits package.
- Opportunities for career growth and professional development.
- Work-life balance and flexible work arrangements.
- Exposure to cutting-edge technologies and challenging projects.
- A collaborative and inclusive work environment.
Roles and Responsibilities :
Developing front end website architecture.
Designing user interactions on web pages.
Developing back end website applications.
Creating servers and databases for functionality.
Ensuring cross-platform optimization for mobile phones.
Ensuring responsiveness of applications.
Working alongside graphic designers for web design features.
Seeing through a project from conception to finished product.
Designing and developing APIs.
Meeting both technical and consumer needs.
Staying abreast of developments in web applications and programming languages.
Desired Candidate Profile :
HTML/CSS. While HTML stands for Hypertext Markup Language, CSS stands for Cascading Style Sheets. ...
JavaScript. ...
Git and GitHub. ...
Backend languages. ...
Web architecture. ...
HTTP and REST. ...
Database storage. ...
Basic design skills.
Familiar with nodejs, reactjs, angularjs, expressjs etc......
- Front-end skills (HTML5, CSS3, JavaScript, ES6+, Ajax);
- 3+ years working with React/Redux + Typescript front-end applications
- Must have experience technologies like Python, React, node.js, PostgreSQL, AWS
- Experience with centrally managed state (Redux) and React Router
- Experience with data structuring libraries (Immutable.js / Immer)
- Experience of TDD/BDD, QA/Test frameworks such as Selenium, load testing (Blazemeter), unit testing (Mocha/Chai/Jest) etc.
- Experience optimising the performance of front-end applications
- A good understanding of agile development practices and common methodologies
- Experience building responsive, cross browser compatibility websites and applications
- Experience of integrating with web services and APIs, including REST endpoints.
- Experience using code version control systems (GIT) and CI/CD.
Technical Skills:
Minimum 2 to 10 years of Experience in Software Development.
Hands on experience in
Back End Development - Node/ Nest JS, Postgre Sql, Micro services,
Kafka, Netflix OSS stack, AWS
Front End Development - Mobile & web technologies, ReactJS and
ionic
Desirable – Healthcare/ AI project experience, TCP/IP and UDP
experience etc.,
having built a few of India's largest companies across multiple domains. This will be an opportunity to directly work with the founders. What we are looking for: An entrepreneurial, thoughtful, and positive mindset/approach to solving large problems, capable of adapting to changing market conditions, willing to join a growing startup, a rational and no-nonsense approach, and practical thought process.
Full-stack experience designing and building scalable applications from end-to-end
- Excellent JavaScript skills and strong proficiency in React
- Familiarity with the MERN stack (MongoDB, Express.JS, React.JS, and Node.JS)
- Working experience with React, Redux, ES6
- Experience building backend API's using NodeJs and ExpressJs
- Experience with NoSQL databases such as MongoDB, mongoose, aggregation framework
and Redis
- Experience with Web sockets and related frameworks (e.g. Socket.IO)
- Experience using RESTful APIs and basic authentication mechanisms
- Create and maintain microservices
- Ability Showcase past work via live web pages
Required Skills: Database - MongoDB, Restful, Express.JS, React.JS and Node.JS, MySQL,
NoSQL.
We are searching for a Senior Full Stack developer to help us to work on our Client projects.
Job Responsibilities--
- Experience with developing real-time application & advance level web projects & mobile apps.
- Strong understanding of front-end technologies, such as HTML5 and CSS3
- Good working experience in advanced JavaScript libraries and frameworks, such as React.js, Node.js, Mobx, Bootstrap, Next.js
- Experience with working with Git(hub)
- Care deeply about clean and functional code
- Experience in Github & AWS a big plus.
- Passionate about learning and staying up to date with the latest technologies
- Are particular about details.
- Project Management Skills.
Benefits:
- Work from home
- Internet Reimbursement
Schedule:
- Monday to Saturday
Supplemental Pay:
- Performance bonus
Education:
- Bachelor's (Required)
- Masters
Experience:
- React: 2-3 years (Required)
- Node.js: 2-3 years (Required)
- Total Work: 2-4 years (Required)
- MongoDB: 2-4 Years years (Required)
- PHP (CI & Laravel) : 2-4 Years (Required)
- Good Project Management Skills.
We are looking for a Node.js Developer responsible for managing 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. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.
The Candidate should have knowledge and experience with specified technologies:
- Great at building server-side code in NodeJs & ExpressJs
- Experience with NoSQL databases such as MongoDB
- Experience in building and consuming REST API
- Authentication and authorisation using JWT tokens
- Proficient understanding of code versioning tools, such as Git
- DevOps knowledge especially in AWS EC2 and S3
- Knowledge of headless Chrome, Puppeteer will be huge plus
- Experience in HTML, CSS
- Understanding of React will be a bonus
Job Description
As a Senior Software Engineer at Radixweb, you will write and maintain efficient code by using PHP technology. You will follow the complete software development life cycle and work with other team members on solutions modules including software system design and development.
Roles & Responsibilities
- Involve in full life-cycle application development
- Programming and Development of Web Application with other PHP Programmer
- Analyzing, coding and debugging the application with PHP & MySQL
- Involve in the work of cloud technology(AWS)
- Involve in a continuous learning process for the latest technologies
- Work with creative thinking and result-oriented approach
Eligibility
- 3 to 5 Years of working experience as a Sr. PHP Developer /Sr. PHP Programmer
- Prior experience in working with PHP, PHP Core, Code igniter, Laravel, CakePHP, Symfony (Any Framework)
- Knowledge of AWS Cloud services
- Have an understanding of MySQL Database
- Excellent in OOPS concepts and implementation in projects
- Demonstrable knowledge of web technologies including HTML, CSS, JQuery, AJAX.
- Experience on Web Service and third party API integration
- Experience in Linux Environment (LAMP) will be an advantage.
- Good understanding of debugging and technical troubleshooting
- Good knowledge of deployment and release cycle with PHP technology
Company Introduction
Founded in 2000, Radixweb is a leading software development company serving over 2900 clients in 25 countries. Join us to work on challenging projects, standardized processes, and fun work culture.
In addition, have an exposure to our home-grown .Net-based open-source framework for creating a cloud-friendly modernized enterprise web application https://www.rxweb.io/home">www.rxweb.io developed using top software design patterns and principles. Already being recognized by developers’ community across the world.
Also have an exposure of our home-grown globally acclaimed PHP based web to print solution- https://www.onprintshop.com/">https://www.onprintshop.com/ developed to simplify print order management from client order to shipping. Recognized as solution partners by reputed brands in the print industry and serving small to largest printers across the world.
- Opportunity to work on latest technologies
- Technology and team-based well-managed training & development process
- A strong and committed team of 450+ employee
- 70+ Employees working with us for 5+ Years
- 25+ employees working with us for 10+ Years
- Flexible shift timings with lucrative compensation
- Transparent Appraisal process
- Exclusive soft skill training by professional Trainers.
2. Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
3. Contribute in all phases of the development lifecycle
4. Follow industry best practices
5. Build efficient, testable, and reusable PHP modules
6. Solve complicated problems with efficient solutions through coding and analysis
7. Building reusable code and libraries for future use












