
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 ProjectDiscovery
ProjectDiscovery is an open-source powered cyber security company with a mission to democratize security. With one of the largest open-source security communities in the world, we host contributions from security researchers and engineers to our 20+ open-source projects, including tools like Nuclei and httpx, which have earned us over 100k GitHub stars and millions of downloads.
We’re a passionate, globally distributed team of ~35, driven by the shared mission of revolutionizing the application security landscape. Backed by $25M in funding, we’re looking for talented individuals to join us in Jaipur office.
Learn more at:
🌐 ProjectDiscovery.io
📂 ProjectDiscovery GitHub
About the Role
We are looking for a software engineer to join our core platform team. The Platform team is a small group of experienced engineers managing ProjectDiscovery infrastructure, improving developer velocity, and ensuring the security, reliability, and scalability of our software. We are highly engaged in shaping the engineering culture at ProjectDiscovery, and operate as “the execution arm” working closely with founders and our CTO.
- Own codebase health, iteration velocity, and developer experience for all of ProjectDiscovery engineering.
- Build and maintain scalable, high-performance web applications.
- Work across the stack, from crafting intuitive front-end interfaces to building robust backend systems.
- Design and implement secure, maintainable APIs for seamless integration of tools and platforms.
What We’re Looking For:
- Expert with JavaScript (Next.js, React) and backend technologies like Node.js and Go.
- Experience with cloud services (Vercel, AWS, GCP) and modern DevOps practices.
- Knowledge of RESTful APIs and database systems like PostgreSQL, Elastic or MongoDB.
- Self-motivated and passionate about solving complex problems at scale.
- Operating and optimizing CI/CD systems to improve developer velocity
Why Join Us?
- Competitive compensation package and stock options.
- Inclusive Healthcare Package.
- Learn and grow - we provide mentorship and send you to events that help you build your network and technical skills.
- Learn with intense innovation and software shipping cycles. We ship multiple times a week and push major releases a couple of times a month.
Our Interview Process
We value efficiency and technical excellence in our hiring process:
- Application Review: Your application is reviewed by a technical team member.
- Initial Screening: A short call to understand your background, goals, and fit.
- Technical Rounds:Coding Assessment: Solve challenges using our tech stack.
- Create PR: Develop or enhance a feature related to one of our open-source tools.
- Final Round: Showcase your work, share your vision, and discuss how you can contribute to ProjectDiscovery at our office in Jaipur.
Job Description: Principal Engineer (Full Stack Architect)
Job Title: Full Stack Architect
Location: Hyderabad, India
Experience: 15Years to 20 years (4+ years in Enterprise Architecture)
Technology Stack: MERN (MongoDB, Express, React, Node.js), Distributed Systems, Cloud (GCP/Azure), Neo4j, Vector Databases, SQL and NoSQL Databases, Knowledge Graphs.
Industry: Enterprise Software, Large-Scale Distributed Systems, Machine Learning
Job Summary
As a Full Stack Architect, you will play a pivotal role in designing and architecting large-scale distributed systems with a strong focus on the MERN stack (MongoDB, Express.js, React, Node.js). You will lead the design and implementation of enterprise-grade software solutions that leverage cloud infrastructure (GCP/Azure), knowledge graphs (Neo4j), vector databases, and machine learning at scale. In this role, you will work closely with cross-functional teams including data scientists, cloud engineers, and front-end developers to deliver high-performance, secure, and scalable applications.
This role requires a deep understanding of distributed systems architecture, graph databases, machine learning systems, and cloud computing, with a strong focus on building solutions that meet business and technical needs. The ideal candidate will have 12+ years of experience with a proven track record of architecting full-stack systems and leading engineering teams in a fast-paced, innovative environment.
Roles and Responsibilities
Full Stack Architecture: Design, develop, and maintain highly scalable, distributed, and fault-tolerant enterprise applications using the MERN stack (MongoDB, Express.js,
React, Node.js).
Distributed Systems: Architect and design large-scale distributed systems that handle high- volume, low-latency data processing.
Cloud Engineering: Implement and maintain cloud infrastructure solutions on GCP or AWS,ensuring high availability, scalability, and performance.
Knowledge Graphs and Databases: Design and optimize complex data models using Neo4j, vector databases, and other NoSQL solutions to manage interconnected data efficiently.
Enterprise Solutions: Architect and deliver cloud-native enterprise software solutions that meet enterprise-grade security, compliance, and performance requirements.
Data Structure & Algorithms (DSA): Lead by example in writing efficient, high-performance code and optimize software with a strong focus on algorithms, data structures, and system design principles.
Collaboration: Work with engineering, data science, and product teams to translate business requirements into scalable technical solutions.
Mentorship: Mentor junior engineers and foster a collaborative team environment.
Performance Optimization: Ensure system performance, scalability, and reliability throughcode reviews, optimizations, and best engineering practices.
Documentation & Best Practices: Maintain comprehensive architecture documentation and promote engineering best practices across teams.
Mandatory Requirements
Experience: 12+ years of full-stack development experience, with significant expertise
in building and architecting applications using the MERN stack (MongoDB, Express.js,
React, Node.js).
Distributed Systems: Proven track record of architecting and implementing large-scale
distributed systems with a focus on reliability, scalability, and performance.
Cloud Expertise: Extensive hands-on experience with cloud infrastructure (GCP or AWS),
with a deep understanding of cloud services such as compute, storage, networking, and
security.
Database Systems: Expertise in NoSQL databases like MongoDB and graph databases like
Neo4j. Experience with vector databases for high-dimensional data processing.
Knowledge Graphs: Hands-on experience in designing and working with knowledge graphs
for solving complex data relationships.
Data Structures & Algorithms: Strong knowledge of DSA with practical experience in
solving complex technical challenges.
Microservices Architecture: Experience in designing and developing microservices-based
architectures and ensuring high availability.
DevOps ; Automation: Knowledge of DevOps practices (CI/CD), containerization (Docker), and orchestration (Kubernetes).
Agile Methodologies: Experience with Agile development methodologies, including SCRUM, TDD, and iterative development.
Nice-to-Have Requirements
Front-End Expertise: Advanced experience with React.js, with knowledge of modern front- end technologies (Next.js, Redux, TypeScript).
Cloud Certifications: Google Cloud Professional Architect or Azure Certified Solutions Architect certifications.
Data Engineering: Hands-on experience with data pipelines, ETL processes, and big data technologies (e.g., Apache Spark, Kafka).
AI/ML Ops: Experience in deploying machine learning models using MLOps frameworks and automating ML pipelines.
Graph Analytics: Experience in graph algorithms and analytics, with the ability to model and query complex relationships in a graph database.
System Design: Experience in conducting system design reviews, providing insights into performance bottlenecks, scalability, and trade-offs.
Security & Compliance: Knowledge of enterprise-level security protocols and data privacy compliance frameworks (e.g., SOC2, GDPR).
Leadership: Proven experience in leading cross-functional teams, setting technical roadmaps, and ensuring alignment between business and technical goals.
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.
Skills:-
Strong organizational and project management skills.
Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
Familiarity with JavaScript frameworks such as React.js,Node.js and Vue.js
Familiarity with database technology such as MySQL, Oracle, and MongoDB.
Excellent verbal communication skills.
Good problem-solving skills.
Attention to detail.
Technical Skills Desired:
Who Should apply?
Only for Serious job seekers
Technically Strong Candidates who are willing to take up challenging roles and want to raise their Career graph.
Why Think n Solutions Software?
Exposure to latest Technology. Opportunity working in different platforms Direct client interaction
Rapid Career Growth
Friendly Knowledge sharing Environment
- Must have experience in either of JavaScript frameworks: Angular /ReactJS (Preferred)
- Must have experience in either of backend software development [J2EE, Spring Boot, Spring core, JPA] or Node.Js
- Must have experience in designing/implementing Hibernate/ORM, Restful web services, Micro Services using Java or Node Js
- Knowledge with relational/ NoSQL databases (e.g., Oracle, MySQL, MongoDB)
- Knowledge with versioning (Git or SVN) /build tools (Maven/Ant/Gradle/Junit), Unit testing & code coverage tools is desired
- Knowledge of App / Web servers (NGINX / Tomcat / Jboss Wildfly)
- Understands the process of new application development and has the ability to apply these concepts with minimal mentoring and supervision.
- Advanced knowledge experience using any of IDE (e.g., Eclipse, SonarQube, STS, VS Code)
- Knowledge on Cloud platform, technologies & deployments is an added advantage
- Resolves technical issues through debugging, research, and
- Must have experience with Agile tools
Functional Skills Desired:
- Good knowledge in product development domains
- Knowledge in Finance and Insurance domain preferred
- Maintain quality and ensure responsiveness of
- Complete application development by coordinating requirements, schedules, and activities contributing to team meetings;
- Troubleshooting development and production problems across multiple environments and operating platforms.
- Collaborate with the rest of the engineering team to design and launch new features
- Understanding and implementation of security and data
- Ensure designs are in compliance with specifications and standards and best industry
- Usage of Process tools – JIRA, TFS, HP QC or any other agile tools, also knowledge of CMM Level 3 development process.
- Self-motivated & working independently with minimal
- Maintain code integrity and
- Experience working with graphic designers and converting designs to visual
- Follow the coding standards for java/node and angular
Technical Skills Good to Have:
- Usage of troubleshooting tools like J Profiler, J Meter or application performance tuning
- Exposure to Non-web-based developments, for both mobile and
- Development experience using Docker, Kubernetes, Containerization etc in AWS or other cloud platforms
- Willing to take up proof of concepts and showcase the technical capability
- Usage of design tools Visio or draw io
- Usage of CI/CD pipeline
Manage all aspects of the project lifecycle, including problem definition, project strategy/roadmap, customer & driver needs, requirement, use cases definition and timely completion.
Oversee all technical aspects and technological resources of the organization for the Project Delivery. Establish a technological vision and lead the company’s technological development.
Can work effortlessly on the critical details needed to bring a product to market.
Shall act as a liaison between leadership and development team. Interface with leadership to establish priorities.
Can work on multiple products/projects simultaneously.
Expertise in Process Management using operational excellence to document test cases and conduct meetings to resolve issues Extensive experience in Project Delivery with expertise in Agile, (Scrum) paradigm & Waterfall development & Kanban method for solutions/products based on diverse technologies Shall Design and implement a software architecture Shall Design and implement a database design.
Excellent Team Leadership qualities involving tasking, monitoring, taking performance feedback, skill upgrade, resolving conflicts, mentoring and motivating the team for performance excellence.
Ability to estimate the resources and participants needed to achieve goals.
Develop best practices and tools for project execution and management.
Shall make executive decisions on behalf of the company’s technological requirements.
Shall act as a mentor to team members and ensure their continued growth.
Skills Required:
• NodeJs , Sequelize ORM, NPM / YARN
• React JS , Javascript
• Database Management System like MySQL, MongoDB
• AWS Services/Tools like EC2, S3, RDS, Lambda, DynamoDB, Cloudformation
• Best practices of CI/CD, Docker Hub, GITHub
[Developers with strong React JS knowledge and open to learning the Vue JS framework also can apply]
We are looking for a SDE—Full stack Web Developers with 2+ years of hands on experience along with Strong Frontend knowledge Vue, React , Nuxt JS, using Bootstrap ability adopt all-new Vue complete state management modern stacks and it’s SEO configuration and develops an abundance of ideas for building efficient UI components, UI strategies, also worked on Backend JS Frameworks latest Node js Express JS, REST API Design, serverless concept (npm, Express Js).
Required skills
- Ability to translate designs from product teams into working product features.
- Design and build software for mobile, front-end clients and back-end systems.
- Strong understanding and fundamentals of HTML/CSS/JS
- Vue Js, Nuxt JS, using Bootstrap (Vue CLI, Vue Router, Vuex, Composition API, Vite/Webpack configurations, hooks) and ability to adopt all-new Vue complete state management modern stacks.
- Ability to Migrate to the latest version of the respective Web UI framework and its SEO configuration and develop an abundance of ideas for building efficient UI components, UI strategies.
- Worked on Latest Node js, REST API Design, serverless concept (npm, Express Js)
- Experience in NoSQL DB Collection documents data modeling and design for that large scale projects (Firestore or MongoDB )
Optional Skills
- Knowledge of Advanced GCP fundamentals like Google Load balancer, Google cloud CDN.
- Have explored new backends stacks like GraphQL Hasura Cloud.
- Experience in REST API caching and CDN configurations.
- Worked on Instant pages load with more Google Lighthouse score and worked on resolving JS error reports.
- Optional: Knowledge on Google Serverless Technologies like Google Firebase Platform (Firebase Auth, Cloud Function, Cloud Run, Google Firestore, Firebase Web SDK ) Fundamental knowledge of Docker, GCP, and the modern Serverless concept, worked on Docker (Devops Fundamental knowledge on Docker, Deployment, CD/CI) will be good.
Name - http://www.savvologygames.com">Savvology Games
Location - WeWork, Spectrum Towers, Malad, Mumbai
About Savvology - There is a lot of luck involved in most of the mainstream real-money games (Poker, Fantasy, Ludo, Rummy) which makes it hard to win anything. We want to create pure skill-based strategy games (no luck factor), where you can control your outcome better. What’s more, more than 50% of the players win! We make use of Game Theory (the science of decision-making) to come up with games that are so simple that even a 5-year-old can play. Our vision is to encourage people to make better decisions through gamification.
Job Brief
We are looking for an experienced and self-driven Backend Developer to join our young team. You will be responsible for all the server-side logic of our games, ensuring a smooth, glitch-free gaming experience. You have to minimize downtime, crashes, and other bugs and capture & store data correctly for further analytics. You will be working alongside a dynamic team of IITian founders, engineers, designers, and marketers, so there is a lot of scope for learning and growth.
We’re a young, passionate team looking to make a dent in the gaming space. We work hard, but we party harder (beer/pizza every Friday night). If you love challenges, playing games, and building innovative products from scratch, we’d like to meet you.
Responsibilities
- Build robust backend systems that do not break down.
- Write clean and reusable code for future use and ease of understanding
- Collaborate with front-end developers to integrate user-facing elements with server-side logic
- Give inputs on how to develop new features in the most cost and effort-economical way
- Implementation of security standards, data protection, and privacy protocols
- We want to be a data-driven company. Gather data (events, clicks, behaviors) to facilitate analytics by the Product and Marketing teams
- Create dashboards where all key metrics and data is visible at a glance
- Implement and maintain an SEO-friendly website
Skills
- 3+ years of proven work experience as a Full-Stack / Back-end developer
- 2+ years of NodeJS experience
- 1+ years of ReactJS experience
- Proficient in MySQL and database design and schemas
- Familiarity with ELK stack. Hands-on project experience will be preferred.
- Website development. Should be well-versed in HTML / CSS / Javascript
- Ability to understand business requirements and translate them into technical requirements
Requirements
- Should be a team player and have a problem-solving attitude.
- Should show initiative and be opinionated. We don’t want a yes-man. [MUST]
- Computer Science or a relevant degree from a reputed university is a plus but NOT mandatory
- Brownie points if you’ve worked on / developed a mobile game before
What you can expect at Savvology Games
- A cool work atmosphere complete with flexible working hours, unlimited coffee, fruit water, games (Foosball, Table Tennis, Pool, Carrom, Board Games, Cards…). Time will fly.
- A hockey-stick trajectory for growth professionally
- Fun people who you’ll want to hang out with after office hours too :)
- Lots of treats - Did we mention beer/pizza every Friday?
What we are looking for?
- At least 3 years of experience of development on full-stack applications
- Experience with usage of NoSQL databases like MongoDB
- Familiarity with SQL and RDBMS Systems
- Experience in creating applications with NodeJS and MERN stack
- Experience with developing frontend interfaces using React framework
- Experience in creating responsive frontend applications
- Able to use versioning systems like Github or Gitlab
- Understanding of basic tools provided by AWS and their configuration
- Understanding of Unix bases operating systems, ability to configure them for optimum usage
- Experience in basic command-line utilities and shell scripting language
- Understanding of rest API implementation
- Ability to script quickly with Python for writing ad hoc jobs
What you will be working on?
- Leading a team of engineers
- Working on creating performant and fault-tolerant systems which are scalable
- Design, build and maintain high performance, reusable, and reliable Typescript code
- Effectively work with product to gather requirements, gain a deep understanding of use cases and business needs, and translate into design and implementation.
- Maintain code integrity and organization.
- Manage basic DevOps related to CI/CD
- Creating secure systems
- Lead other junior developers
- Define optimal and minimal architecture to achieve product requirements
Job Background
We are looking for a Web Developer to join an award-winning, talented team, building the
next-generation automated drone applications for our global customers
As a front-end developer, you will implement a complete user interface in the form of a
web app. A thorough understanding of all of the components of the company’s platform and
infrastructure is required. You will need to take ownership of your projects, which involves
detailing requirements after discussion with the Product Owner, building user interfaces,
developing and maintaining web apps with a focus on user experience
Responsibilities
● Work as part of a team developing applications and services using Agile
development methods
● Contribute to team and organizational improvements in process and infrastructure
● Effectively use tools and ingenuity to identify and fix defects before they become a
problem
● Creating self-contained, reusable, and testable modules and components
● Learn about the domain and competitors to propose new drone apps as well as
improvement for existing apps
● Collaborate on projects with a closely-knit team
Skills/Experience
● 3+ yr experience as an Angular 2+ or React or Ionic Developer.
● Strong expertise with NodeJS, HTML5, CSS, JSON, jQuery, Bootstrap and writing
cross-browser compatible code.
● Knowledge of NodeJS frameworks such as ExpressJS etc.
● Knowledge of Creating RESTful services with Node.js and Experience with Socket.io
● Good understanding of HTML Dom manipulation Technique ●Experience in tested & documented TypeScript/JavaScript, HTML, and CSS
● User authentication and authorization between multiple systems, servers, and
environments
● Understanding of fundamental design principles behind a scalable application
● Proficiency working with source control (git) / versioning systems, continuous
integration in an agile development setup
Good to Have
● Understanding of how to deploy Mean stack applications in AWS/Azure deployment
environment, considering security, reliability etc.
● Knowledge of other python-based server-side frameworks such as Flask or Django
| 1.working experience on REST APIs , using NODE js with express for web and apps (andriod and Ios) |
| 2.working experience with web socketIO |
| 3.Hands on coding knowledege of JAVA script |
| 4.AWS Setup (EC2, S3, Route 53, VPC) |
| 5.Knowledge of payment gateway integration (Paypal,Stripe, Razorpay) |
| 6. Working experience on version control like GitHub, Bitbucket |
| 7. Working with the agile team to develop, test & maintain web applications. |










