Java Developer

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.

Job Title:- Full Stack Developer Team Lead

Job Description:-

We are looking for an experienced Full Stack Developer Team Lead with 3+ years of hands-on experience in Laravel, React, Node.js, TypeScript, and Vue.js to join our dynamic team. In this role, you will be responsible for leading a team of developers, overseeing the development of cutting-edge web applications, and ensuring the successful delivery of high-quality products. You will work closely with cross-functional teams to drive project success, mentor junior developers, and contribute to the architecture and design of scalable, high-performance applications.

Responsibilities:

• Lead a team of developers, providing guidance, support, and mentoring to junior and mid-level developers.
• Design, develop, and maintain both front-end and back-end solutions using Laravel, React, Node.js, TypeScript, and Vue.js.
• Oversee the end-to-end project lifecycle, ensuring projects are delivered on time, within scope, and to the highest quality standards.
• Work closely with project managers, designers, and other stakeholders to gather requirements and ensure technical feasibility.
• Ensure clean, maintainable, and well-documented code by conducting code reviews, establishing best practices, and adhering to coding standards.
• Troubleshoot and resolve complex technical issues, ensuring a smooth user experience.
• Stay updated with the latest industry trends and technologies to bring innovative solutions and improve the development process.
• Contribute to the design and architecture of scalable and high-performance applications.

Requirements:

•  3+ years as a Full Stack Developer, with at least 1 year in a leadership role.
• Proficient in Laravel, building RESTful APIs, and working with MySQL/PostgreSQL.
• Strong experience with React and Vue.js for dynamic UI development.
• Solid understanding of JavaScript and TypeScript for full-stack development.
• Experience with Node.js for server-side and real-time apps.
• Familiar with Git for collaboration.
• Strong communication, problem-solving, and leadership skills to mentor and guide the team.

Why Join Us?

• Growth Opportunities: Opportunity to grow into senior leadership roles.
• Collaborative Environment: Work in a supportive and innovative team.
• Impact: Play a crucial role in shaping the development of products used by [customers/industry].
• Work-Life Balance: Flexible working hours.

Full Stack 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. You will also be responsible for integrating the frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.

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 and ReactJS development stack

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

∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.

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

∙ Good to have knowledge of AWS, Redis, ElasticSearch

Required Skill Set

Software Engineer/Senior Software Engineer/Lead Engineer-Java

· Experience in Core Java 5.0 and above, Angular, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux

· Possess good architectural knowledge and be aware of enterprise application design patterns.

· Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.

· Good development experience with RDBMS

· Good knowledge of multi-threading and high volume server side development

Basic working knowledge of Unix/Linux

· Excellent problem solving and coding skills in Java

· Strong interpersonal, communication and analytical skills.

· Should have the ability to express their design ideas and thoughts.

Job Brief-

·        Understand product requirements and come up with solution approaches

·        Build and enhance large scale domain centric applications

·        Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines

Title: Java FullStack Developer

Experience: 4+ years

Work Location: Pune/ Bangalore/ Chennai 

Notice Period: Immediate to 30 Days Max

Key Skills: Java, Angular Mobile, Ionic, Hybrid Mobile, React, Accelerator, Objective-C, UI Design, SOAP/React/SOA

Requirements:

• Looking for candidates with BE/MCA/M.Tech
• Experience of Core Java, JSP, Servlets, HTML5, CSS3, Vanilla JavaScript, jQuery.
• 4-6 years of strong experience in any of the hybrid mobile tools/platforms like Angular Mobile / Ionic
• Hands on experience in Spring boot and Microservices architecture
• Must have good experience in building feature-rich customer facing mobile applications using Accelerator, Java, XML and Objective-C.
• Good Experience in Javascript
• Should have experience in UI design, HTML, CSS for mobile platform.
• Should have experience in SOA, REST, SOAP etc.,
• Preferred experience in Angular/React/any front-end web development framework.
• Must have worked in Agile framework model with team collaboration.

Technology Development Manager

Location : Bangalore (5 Days WFH)

Education Qualification : B.Tech/M.Tech

(Must have good communication skills)

Skills Required : Java, JEE, Spring Frameworks, REST, Object Oriented Analysis and Design,Microservices Architecture, MySQL, MongoDb, ElasticSearch, Git, Jenkins, Microservices, JSON, Javascript, Node.js, Amazon Web Services or any other cloud 

Experience : 8 to 17 years

Role :

• As a Technology Development Manager, be passionate about technology strategy & vision, hands-on solution design, critical analytical thinking and team management
• Responsible for Peer review, design, deployment, production support & mentoring the team
• Be a self-starter based on your experience and be able to deliver world-class capabilities for one of the fastest growing startups in the Global Digital Identity space
• Ability to thrive in a fast-paced, results-oriented, execution-focused environment while handling the day to day operations and having full control over the business technology organization

• Be energised in the fine balance between managing team and being a technologist
• Be comfortable with ambiguity. As with any startup, this role and the company will evolve and pivot and times will show more unknowns than known.

Requirements:

• 8-15 years of progressive technology experience as an engineer, an architect, project manager, and a team leader in cross functional teams
• Results driven! Demonstrated ability to successfully have brought a product to market
• Experience with full-stack software development including newer front-end frameworks
• Java, JEE, Python, Spring Frameworks, REST, Object Oriented Analysis and Design, Microservices Architecture, MySQL, MongoDb, ElasticSearch, Git, Jenkins, Microservices, JSON, Javascript, Node.js, Amazon Web Services all important

• Experience and knowledge in Machine Learning & Computer Vision a plus
• Hands-on product management and software development life-cycle experience (especially Agile methodologies)

• Experience leading teams in the successful delivery of large technology projects
• Demonstrated ability to make good technology trade-off decisions, i.e. managing technical debt

• Drives the CI/CD strategy for the product
• Served as technical lead throughout the full development lifecycle, end-to-end, from scoping, planning, conception, design, implementation and testing to documentation, delivery and maintenance

Competencies:

• Can identify leading indicators for problems that is likely to surface in the future
• Can identify large problem patterns, systemic issues and opportunities for larger re-architecture and redesign
• Can troubleshoot the entire product ecosystem effectively
• Considered as a Guru in a language, its internals and the application of the language in a wider context
• Defines coding standards and design approaches across the organization
• Can independently design multi systems and systems with complex interactions
• Can design generic platforms for a wider usage across teams
• Accountable for all designs in the team
• Deep knowledge, understanding and experience with working of different architectural styles 
• Responsible and accountable for NFR aspects of the product
• Responsible for Architecture and Tech stack across the team(s)
• Ability to define (in collaboration with cross functions), plan, deliver and operationalize large releases.
• Create formal mentoring plans and identify mentoring needs for a team
• Contribution to open source projects, open standards
• Flag bearer of
• Freedom and responsibility
• First Principles
• Bias for action
• Earn your badge
• Customer Empathy
• Truth seeking

Roles & Responsibilities

1. Position : Technical Lead (JAVA/J2EE)
2. Salary : As per the Industry standard 
3. Role: (70% Technical; 30% Team Leading Activities)
4. Successfully design medium to large-scale Enterprise solutions using Java technologies
5. Good knowledge of the design patterns like core design patterns, J2EE design patterns and architectural design patterns along with knowledge of UML
6. Lead technical discussion to provide technical guidance and create coding standards
7. Good with architecting and engineering systems independently, would want the individual to be comfortable implementing a significant part of the framework.
8. Provide technical knowledge and leadership on design and development best practices. 
9. Provide technical input on unit and integration tests for server- and client-side applications, build and deployment procedures and standards.
10. Interaction with management and module leads

Required skills

1. 5+ years of experience in developing and testing software using Java J2EE based application
2. Experience in managing team technically.
3. 3+ years of experience in Object Oriented Analysis and Design. 
4. 2+ years of experience in developing application using Spring (Spring Core, Spring ORM and Spring Batch), Hibernate.
5. 2+ years of experience in web technologies using Spring MVC, jQuery. 
6. Good knowledge of design patterns
7. Knowledge on SSL, Web application security frameworks
8. Experience in J2EE performance and scalability
9. Hands on experience on Maven, Jenkins, Nexus etc.
10. Proficient in Software development/integration/build tools like GIT, GERRIT, JIRA/BugZilla
11. Sound knowledge of Object-Oriented Analysis, Design and Design Patterns especially MVC is must
12. Good Knowledge and hands on experience on different databases.  
13. Proficient in Writing / Understanding PL / SQL objects like stored procedures, triggers.  
14. Knowledge on various Application servers including WAS, WLS and JBoss.  
15. Very strong skills in to Angular, AJAX, JSF, Struts, HTML 5, CSS, Bootstrap.  
16. Implement jUnit (unit testing framework) in the project
17. Excellent Oral and Communication skills.