Senior Full Stack Engineer

Job Details

- Job Title: Software Developer (Python, React/Vue)

- Industry: Technology

- Experience Required: 2-4 years

- Working Days: 5 days/week

- Job Location: Remote working

- CTC Range: Best in Industry

Review Criteria

• Strong Full stack/Backend engineer profile
• 2+ years of hands-on experience as a full stack developer (backend-heavy)
• (Backend Skills): Must have 1.5+ strong experience in Python, building REST APIs, and microservices-based architectures
• (Frontend Skills): Must have hands-on experience with modern frontend frameworks (React or Vue) and JavaScript, HTML, and CSS
• (Database Skills): Must have solid experience working with relational and NoSQL databases such as MySQL, MongoDB, and Redis
• (Cloud & Infra): Must have hands-on experience with AWS services including EC2, ELB, AutoScaling, S3, RDS, CloudFront, and SNS
• (DevOps & Infra): Must have working experience with Linux environments, Apache, CI/CD pipelines, and application monitoring
• (CS Fundamentals): Must have strong fundamentals in Data Structures, Algorithms, OS concepts, and system design
• Product companies (B2B SaaS preferred)

Preferred

• Preferred (Location) - Mumbai
• Preferred (Skills): Candidates with strong backend or full-stack experience in other languages/frameworks are welcome if fundamentals are strong
• Preferred (Education): B.Tech from Tier 1, Tier 2 institutes

Role & Responsibilities

This is not just another dev job. You’ll help engineer the backbone of the world’s first AI Agentic manufacturing OS.

You will:

• Build and own features end-to-end — from design → deployment → scale.
• Architect scalable, loosely coupled systems powering AI-native workflows.
• Create robust integrations with 3rd-party systems.
• Push boundaries on reliability, performance, and automation.
• Write clean, tested, secure code → and continuously improve it.
• Collaborate directly with Founders & Snr engineers in a high-trust environment.

Our Tech Arsenal:

• We believe in always using the sharpest tools for the job. On that end we always try to remain tech agnostic and leave it up to discussion on what tools to use to get the problem solved in the most robust and quick way.
• That being said, our bright team of engineers have already constructed a formidable arsenal of tools which helps us fortify our defense and always play on the offensive. Take a look at the Tech Stack we already use.

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.

ROLES AND RESPONSIBILITIES:

·       Working with technical architects, able to convert the architecture into design and code in Java (Spring Boot), AngularJS, and NodeJS.

·       Able to generate LLD documents.

·       Ability to write Quality code with minimum defects.

·       Unit Test and following the coding standards.

·        

PREFERRED QUALIFICATION AND SKILLS:

·       5+ years strong programming and logical skills in Java (Spring Boot), AngularJS, Object Oriented Java script, NodeJS and HTML5

·       Hands on Experience on Java (Spring Boot), and MySQL is mandatory. Must have completed at least 2 full projects using Spring boot and AngularJS.

·       Excellent knowledge and experience in Spring JPA, RESTful webservices implementation.

·       NodeJS experience is value add

·       Should have participated in, and be familiar with, Agile (Scrum) project methodology and practices.

·       Must be able to mentor and guide junior technical resources.

·       One who is proactive and come forward with technology related initiatives. Motivated self-starter. 

·       Good Communication skills. English - Oral and Written.

Welcome to Thrillophilia ! 7 Million users come every month to plan their trips on Thrillophilia . We are your one stop solution to book your tours, activities, staycations and much more.

What should you be like?

• You are someone who can take ownership of things and deliver the assigned feature on time.
• You are always finding out new ways to optimize your code.
• You cannot live without writing tests for your feature.
• You always look forward to learning new technologies. Someone who would love spending his weekend hacking and learning new things.
• You never give up when you don’t find answers on StackOverflow, but go deeper into the Rails source code to exactly understand how a feature is working. 
• You have a passion for travel and an interest in building systems that will help fellow travelers.

Requirements:

• Good CS fundamentals and problem-solving skills
• 4+ years of experience in building scalable and maintainable web apps including 
• 2+ years of experience in Ruby on Rails
• 2+ years of experience in React.js
• Profound knowledge of HTML/CSS/JS
• Proficient in Git
• Solid knowledge of databases such as PostgreSQL, MYSQL
• Experience in designing database schema with proper use of indexes, constraints, triggers, etc.
• Hands-on experience with in-memory databases like Redis, Memcache, etc.
• Well-versed in writing raw SQL queries (not via ActiveRecord :P)
• Have worked with background job processing systems such as Sidekiq, Delayed Jobs, etc
• Solid Foundation and Understanding of REST APIs and have built robust, scalable APIs
• Hands-on experience in writing automated tests using RSpec or any other framework.
• An ability to communicate and work in a team

Bonus if:

• You have ever built a Ruby Gem or a JS library
• You have hands-on experience in DevOps
• You have hands-on experience with ElasticSearch/Redis
• You have used GCP services earlier 

Full-stack developer  - Remote position

Are you...

• Interested in working at a successful, well-funded start-up where every team member can make a huge contribution?
• Keen to make software that people will use every single day to make their lives easier?
• Excited to work on greenfield projects with responsibility and independence?
• Ready to develop and use your skills across our frontend, backend and mobile offerings?
• Meticulous about quality, and gifted with a strong desire to write beautiful code?

About the company

KeyNest solves the key exchange problem for Airbnb users. Our worldwide network of over 4,000 shops store keys so that Airbnb guests / cleaners / contractors can pick them up whenever is convenient for them. As a global partner of Airbnb we’ve checked-in over 2 million guests.

Why we need you

As the entire Airbnb ecosystem increasingly relies on KeyNest, our customers expect us to integrate additional features without reducing the ease of use that our customers love. This is why we continue to invest in beautiful, intuitive user interfaces that integrate with every tool and are used by our customers, their guests and staff, as well as our own staff.

Our product team is lead by one of the founders and complete with a director of engineering, product manager, UX designer, one mobile developer and one senior full-stack developer who will be mentoring you. We want to work with a developer who cares about the way their code impacts the people who use it.

With a genuine passion for high quality work, attention to detail and readiness to own your own projects, you will be looking for a new and exciting challenge which allows you to use your experience to drive change and maintain the high standards of our organisation.

Our Tech Stack

• C# MVC modern tech stack
• Front end web in TypeScript & Angular or Node & React
• Test Driven Development (TDD) and follow SOLID design principles.
• EF 6.0
• SQL Server 2017
• Agile experience (Scrum, Kanban)
• TFS
• Cloud hosted in Azure with micro-services architecture

Your qualities

• 2-4 years experience in C#
• Front-end web experience in Angular
• Track record of building great products
• Excited about understanding the real problems working people come up against and fixing them with technology
• You’ll love the idea of being a big part of a small team: if you come up with a great idea, you can take it all the way to production
• Motivation and ambition to succeed in a fast-paced environment
• Not afraid to take on responsibilities

What we offer

• Crucial role in a funded, dynamic & fast-growing start-up shaking up the sharing economy
• Competitive salary based on relevant experience
• Flexible working for our most committed staff
• Unparalleled opportunities to develop your career as the company develops rapidly

If you want to join the KeyNest team, please get in touch – we look forward to meeting you.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

What you will do:

• Work with stakeholders (product owners, project managers, and scrum masters) to define and clarify requirements.
• Provide technical and work direction to the other global developers (be their conduit to the local team)
• Hands-on development of defined architecture and design of both front-end and back-end programming.
• Ability to keep informed of industry trends and technologies.
• Ability to break down complex requirements into specific work items.
• Implement and carry out unit testing.
• Leverage the DevOps team to ensure the product can be automatically built, deployed, and tested using CI/CD pipelines across all of the release cycles from dev to production.
• Strong grasp of modern security principles and how to apply them to applications

Minimum Qualifications:

• Degree in Computer Science, technical field, or equivalent professional experience.
• Proven ability to develop resilient code that performs, and scales based on application usage.
• 6+ years of experience in developing using JavaScript and JavaScript libraries and frameworks such as Angular and React
• 6+ years of experience building applications using JavaScript, HTML, CSS, Web, JSON/XAML-based REST API.
• 3+ years of experience building RESTful web services using NodeJS
• Experience with Unit Testing Frameworks like UnitJS, Mocha
• Understanding of code versioning tools such as Git or Visual Studio Team Services
• Experience with Visual Studio, Visual Studio Code, Atom or Eclipse
• Excellent oral and written communication skills
• Ability to work in a distributed and global environment
• Understanding of building applications deployed in the cloud (Azure, AWS, GCP) leveraging PaaS and IaaS Services
• Able to work in a fast-paced environment with a diverse group of people

Preferred Qualifications:

• Proven ability to quickly learn new technologies
• Experience with agile methodologies
• Strong problem-solving orientation
• Can manage multiple competing tasks/projects at the same time
• Strong team and customer service focus

Responsibilities:

• Developing and providing maintenance support for WordPress sites
• Migrating websites from other platforms to WordPress
• Integrating and setting up plugins like WPML, Yoast SEO, Elementor, WPBakery Page Builder Membership, etc.
• Optimizing page speed of WordPress sites
• Implementing SEO/CRO best practices in WordPress sites
• Transforming complex PSD layouts into pixel-perfect Responsive Wordpress websites.
• Creating responsive website designs
• Working under tight deadlines
• Handling multiple projects at the same time
• Producing high-quality work with a strong focus on detail
• Understands WP architecture and knows how to perform database and code optimization for WordPress
• Test, debug, analyze and fix application problems/issues.

Experience:

• Strong knowledge of WordPress Platform
• Expertise in HTML5, CSS3, JavaScript
• Proficiency in PHP/MYSQL and AJAX
• Minimum 2 years of experience in WordPress Development
• Understanding of W3C Web Standards/Semantics and Accessibility Guidelines
• Understanding of WordPress core functions and working concepts

Education:

Any Graduate in Any Specialization. Preferred Computer Science/IT Background.