Backend Developer

Who You Are:

• You’ve built scalable, production-ready APIs in fast-paced environments, and are comfortable with the challenges that come with a growing startup.
• You understand event-driven architectures and have hands-on experience building real-time applications.
• You are fully capable of taking ownership of backend systems, from designing the database schema to writing efficient, maintainable code.
• You think beyond the code: optimizing performance, scalability, and security are as important as building new features.
• You’re comfortable troubleshooting complex issues, whether that’s API bottlenecks, database performance, or production issues.

Responsibilities:

• Design, implement, and manage a NestJS backend with a modular, scalable architecture that can easily handle real-time events and communication.
• Develop and maintain WebSocket services for real-time event-driven updates and ensure seamless communication across the system.
• Integrate RabbitMQ for reliable internal messaging, handling queues and ensuring event-driven workflows are efficient and fault-tolerant.
• Implement database management strategies using MongoDB, Redis, and Elasticsearch, ensuring efficient data handling, indexing, and optimization.
• Integrate with external APIs (JSON-RPC, XML-RPC, REST) to enhance system capabilities.
• Ensure high performance of the system by optimizing database queries, implementing caching strategies using Redis, and ensuring optimal indexing and data flow.
• Implement role-based authentication and authorization mechanisms using JWT, OAuth, and RBAC patterns within NestJS.
• Follow security best practices to ensure sensitive data is protected, credentials are stored securely, and the system is resilient to common vulnerabilities.
• Work collaboratively with cross-functional teams to ensure seamless integration between different services and technologies.

Must-Have Skills:

• Strong proficiency in Node.js and NestJS with TypeScript.
• Solid experience with MongoDB, Redis, and Elasticsearch for data storage and real-time data handling.
• In-depth knowledge of WebSockets and Socket.IO in NestJS Gateways, enabling real-time communication and updates.
• Experience with RabbitMQ for message queuing and asynchronous task handling.
• Strong understanding of authentication & authorization systems using JWT, OAuth, and RBAC (Role-Based Access Control).
• Expertise in optimizing APIs, including techniques for caching, improving database performance, and reducing latency.
• Familiar with API security best practices, including secure storage of credentials, encryption, and safeguarding sensitive data.

Key Skills:

• TypeScript, NestJS, WebSockets, Socket.io
• Redis, MongoDB, Elasticsearch, RabbitMQ
• API Optimization, JWT, OAuth, RBAC
• Real-time communication, Event-driven architecture

Job description: for Node js Developer at Appinop Technologies

• Experience in developing IOT applications using NodeJS & frameworks
• Writing reusable, testable, and efficient code
• Familiarity with RESTful APIs . Experience in working on serverless framework in AWS using Lambda, API Gateway . Experience in working on AWS database services such as Dynamodb , RDS - Experience in working on other AWS services such as Cognito, AWS ElasticSearch, Kinesis Data Stream, Firehose, Athena, S3
• Design and implementation of low-latency, high-availability, and performant applications
• Implementation of security and data protection

Requirements and qualifications:

• Previous working experience as a Node.js Developer 1-2 years
• Bachelor's degree in computer science, information aries, and Exceptional analytical and problem-solving aptitude. Science, or similar.
• Extensive knowledge of JavaScript, web stacks, libr
• Knowledge of front-end technologies such as HTML5 and CSS3.
• Superb interpersonal, communication, and collaboration skills.
• Availability to resolve urgent web application issues outside of business hours.

      About Appinop

Innovation begins with like-minded people aiming to transform the world together.

We invite you to become a part of an organization that has been helping clients transform their business by fusing insights, creativity, and technology. At Appinop, we embrace a diverse mix of talented people who come here to stay and do their best work.

At Appinop, we transform passionate individuals into proficient professionals dedicated to exploring new frontiers in Software development. Here you will get the opportunity to work with technical craftsmen that are pioneer in latest technologies

We promote a culture of equality, learning, collaboration, and creative freedom so that our employees grow.

For more information about our solutions and organization, visit http://www.Appinop.com">www.Appinop.com

We are looking for a PHP Developer to help us go global by building a world-class product.

spynPRO is a SAAS product for academy owners, event organizers and facility owners to manage and grow their business.
We are a small but growing team of 9 that is changing the way academies teach their students, organizers manage events and facilities manage slot booking. Take your career to the next level with us.

About our Engineering Department

We build new features on top of a stack using YII2 framework, consisting of web apps communicating through APIs, backed by MySQL databases and currently using Cordova for our Android and iOS apps
We don’t follow rigid Scrum or Kanban, but we do work in an agile, iterative way – we deploy changes multiple times a week to production and try to continuously improve and implement what works for us.

Here are some things you’ll be doing in the role (but not limited to):

Writing code, code reviews, fixing bugs, optimising server response, etc.
Understanding the problems to be solved, and breaking these down into small, actionable tasks.
Learning and helping others

So, what are we specifically looking for?

About 1-4 years experience in PHP framework, including both successes and failures, which help you make better decisions.
Good working knowledge of PHP MVC Frameworks, MySQL & HTML/CSS.
Significant experience in working on major systems in one or more languages: ideally you’ve built REST API endpoints on top of data storage layers, and understand concepts like authentication, caching, web security, and the way that frontends consume APIs.

What are we currently working on?

1. Developing a new webapp Workpod in Yii2 framework
2. Adding new features to existing product spyn
3. Developing cordova apps for above 2 products

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.

• Bachelor's degree in Computer Science or related field or equivalent experience
• 2+ years of Full Stack development experience using NodeJs
• Knowledge of relational databases (PostgreSQL, MySQL, etc. )
• Experience designing and developing REST APIs
• Strong analytical and communication skills
• Eager to learn new technologies
• Strong fundamental knowledge of object-oriented programming, data structures, algorithms, and performance
• Hands-on experience with agile practices, including coding standards, reviews, build process, testing, and code control management.

• Infrastructure experience including AWS, Jenkins, Docker, Kubernetes and CI/CD configuration and deployment is ideal.
• Our development team is looking for an experienced full-time Full Stack Developer to join our fast-growing organization.
• As part of the development team, you will be maintaining, enhancing, designing, developing, testing, and documenting on both the client and server-side of our products.
• The ideal candidate is an innovative problem solver, who has excellent communication and teamwork skills.
• NodeJS, React JS
• Docker, AWS

Kunato.AI is a NY-based IT firm helping to create the first marketplace that monetizes digital content on the internet (i-commerce). We have patented our technology - a quantitative deep tech system that predicts, assigns, and updates the value of any digital content in real time without the need for human intervention. Our system has the potential to create a new digital goods marketplace that will revolutionize the way we consume, create and search for content on the Internet.

We are looking for a Rust Developer (with 2-6years of experience) to join our cutting-edge development team as it grows. The candidate must be comfortable working in an agile environment and has the ability to take the lead when necessary.

Roles and Responsibilities:

• Responsible for developing the product as per the product specification defined by the product managers
• Responsible for preforming research on the best methods of implementing the requirements
• Author and curate technical documentation to support delivery, maintenance, and adoption
• Work with programmers, engineers, and management heads to identify process improvement opportunities, propose system modifications, and devise governance strategies to optimize the overall performance
• Design and develop automated deployment and maintenance mechanisms
• Solving development challenges and making architectural decisions by understanding the larger picture of the projects goals
• Expanding your existing skill-set, and picking up on various rust dependent frameworks
• Confidently communicating and collaborating with your fellow developers in a remote team environment

Essential skills:

• Must have experience in Rust programming language
• Have excellent knowledge of different data structures and algorithms
• Working knowledge of any other programming language Python, Java, or JavaScript is good to have
• Experience with, or understanding of, Kafka or Redis, Cloud infrastructure services, Docker is an added advantage
• Experience with SQL or NoSQL databases, MySQL, MongoDB, Elasticsearch, etc.
• Experience in Backend and APIs development
• Experience in analysing and optimizing the platform’s performance
• Excellent verbal communication skills