Node.js Backend Ninja

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 Summary:

We are seeking an experienced Back-end Developer to join our IT team. You will be responsible for the server-side of web applications. If you have excellent programming skills and a passion for developing or improving applications, we would like to meet you.

As a Back-end Developer, you will work closely with our team to ensure system consistency and enhance the user experience. Ultimately, you should be able to develop and maintain functional and stable web applications that meet our company's needs.

Responsibilities and Duties:

• Participate in the entire application lifecycle, focusing on coding and debugging
• Write clean code to develop functional web applications
• Troubleshoot and debug applications
• Perform unit tests to optimize performance
• Manage cutting-edge technologies to improve legacy applications
• Collaborate with front-end developers to integrate user-facing elements with server-side logic
• Gather and address technical and design requirements
• Provide training and support to internal teams
• Build reusable code and libraries for future use
• Liaise with developers, designers, and system administrators to identify new features required

Skills and Qualifications:

• Proven work experience as a Back-end Developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Hands-on experience with JS, ES6, Node.js, Express.js, MongoDB, building REST APIs, and GraphQL
• Excellent analytical and time management skills
• Strong teamwork skills with a problem-solving attitude
• BSc/BE or BTech degree in Computer Science or a relevant field

Skills:

• Node.js
• MongoDB
• JavaScript
• Express

As a Node.js Developer at Primathon Technology, you will be responsible for designing, developing, and maintaining server-side applications using Node.js. You will collaborate with cross-functional teams to implement new features, optimize existing functionality, and ensure the best possible performance, security, and user experience. Key Responsibilities:

1. Develop and maintain server-side applications using Node.js, ensuring optimal performance and scalability.

2. Collaborate with front-end developers, designers, and other stakeholders to implement new features and enhance existing functionality.

3. Write clean, maintainable, and efficient code while adhering to coding standards and best practices.

4. Participate in code reviews to ensure code quality and consistency within the development team.

5. Troubleshoot and debug issues across the application stack, identifying and resolving performance bottlenecks and other challenges. 6. Implement security and data protection measures, ensuring the application's compliance with industry standards.

7. Optimize applications for maximum speed and scalability. Qualifications and Skills:

1. Bachelor's degree in Computer Science, Engineering, or a related field.

2. Minimum of 2 years of professional experience as a Node.js Developer

. 3. Proficient in server-side JavaScript programming using Node.js.

4. Strong understanding of asynchronous programming, including Promises and async/await.

5. Experience with RESTful API development and integration.

6. Familiarity with front-end technologies such as HTML, CSS, and JavaScript frameworks (e.g., React, Angular, Vue) is a plus.

7. Knowledge of database systems (e.g., MongoDB, MySQL, PostgreSQL) and data modeling.

8. Experience with version control systems (e.g., Git) and collaborative development workflows.

9. Good understanding of software development lifecycle (SDLC) and agile methodologies.

10. Strong problem-solving skills and attention to detail

About Quantela

We are a technology company that offers outcomes business models. We empower our customers with the right digital infrastructure to deliver greater economic, social, and environmental outcomes for their constituents.

When the company was founded in 2015, we specialized in smart cities technology alone. Today, working with cities and towns; utilities, and public venues, our team of 280+ experts offer a vast array of outcomes business models through technologies like digital advertising, smart lighting, smart traffic, and digitized citizen services.

We pride ourselves on our agility, innovation, and passion to use technology for a higher purpose. Unlike other technology companies, we tailor our offerings (what we can digitize) and the business model (how we partner with our customer to deliver that digitization) to drive measurable impact where our customers need it most. Over the last several months alone, we have served customers to deliver outcomes like increased medical response times to save lives; reduced traffic congestion to keep cities moving and created new revenue streams to tackle societal issues like homelessness.

We are headquartered in Billerica, Massachusetts in the United States with offices across Europe, and Asia.

The company has been recognized with the World Economic Forum’s ‘Technology Pioneers’ award in 2019 and CRN’s IoT Innovation Award in 2020.

For latest news and updates please visit us at www.quantela.com

Overview of the Role

Collaborate with cross-functional teams to define, design and build performant modern web applications and services. Build high quality web applications and services by writing clean and modular code

Must have Skills

• 10+ years of experience in leading teams and delivering product, write unit and integration tests to ensure robustness and reliability of web applications and services. 
• Measure and improve performance of microservices.
• Catalyze growth within the team through code reviews and pair programming to maintain high development standards Investigate operational issues to find the root cause and propose improvements Design, build, and maintain APIs, services, and systems across Stripe’s engineering teams.
• Expert level of experience in design and development of Web Applications, highly scalable distributed systems.
• Should have experience in development skills using latest technologies including NodeJS, Microservices, Elastic search, Timescale DB, Kafka, Redis, etc.
• Should have exposure in NoSQL and SQL development.
• Comprehensive knowledge of physical and logical data modelling, performance tuning.
• Should possess excellent communication, presentation, and interpersonal skills.
• Ability to work collaboratively and productively with globally dispersed teams
• Build high performance teams and Coach team for successful career growth
• Experience working with relational and non-relational databases, query optimization, and designing schema

Desired Background

Bachelors/Masters degree in Computer Science or Computer Applications

AnnexLogic System Pvt. Ltd. is a leading comprehensive business software product development services provider. We partner with both start-ups and established businesses globally in their idea-to-implementation journey. We are a team of professionals who believe in creating business value for our clients through in-depth research, analysis, formation and implementation. Our customers are spread across the globe including the US, Canada, Australia, UK, Europe and Asia-Pacific region.

We are always looking for opportunities to extend our team with new proficient and talented colleagues who love working in a start-up culture, and this time, we need a Senior Back-end Developer, with strong technical skills and relevant experience of at least 4 years.

You’re a motivated team player who takes initiative and pride in his work and contributes to an informal working environment. You will be confident in your ability to develop the product, taking into account the following:

● Excellent knowledge of NodeJS
● At least 3 years of working experience with backend technologies
● Knowledge of PHP is considered a plus
● Knowledge of Java or Kotlin is considered a plus
● You can learn quickly new technologies and adapt to new technical challenges
● Experience in working with a TDD approach
● You have a strong background in Linux-based development
● You have previous experience with container technologies such as Docker
● You have strong knowledge of microservice architecture
● You are passionate about writing clean, maintainable & testable code
● You have strong Agile/Scrum work ethic
● You are continuously researching tools, technologies, frameworks and practices.
● Projects with a high complexity interest you
● You are highly committed and responsible, independent and able to take an initiative
● You are always mindful of quality attributes like maintainability, performance, security, scalability, usability and testability.
● You carefully read the specifications and assignments and you like to take responsibility for your components from start to end
● You feel comfortable discussing and deepening technical and technical requirements with the PM
● You have multitasking capabilities, attention to detail and excellent analytical skills
● Excellent interpersonal and teamwork skills 1 Responsibilities:
● Work on multiple microservices - written in NodeJS (TS, JS), Spring (Kotlin), PHP (Symfony)
● Develop new microservices to accommodate the (many) new features and requirements of the project
● Refactor existing microservices or extract new ones to improve performance and scalability
● Come up with ideas to improve existing architecture - feedback and ideas are always welcome
● Monitor, trace and debug production microservices to ensure an application with 0 downtime
● Work to improve the CI / CD flow of the project Things we can guarantee:
● Competitive salary, with many other extra benefits (complex medical package, extra free days, events, gifts and others)
● Opportunity to work on a challenging project, using the latest technologies
● The perfect framework for professional development
● A young, creative and friendly team
● A flexible work schedule which makes you more productive
● We support any opportunities that are useful for you, including training and events