NodeJS Developer

Need candidates from Growing startups or Product based companies only

1. 6+ years experience in backend engineering

2. Minimum 2+ years hands-on experience with:

TypeScript

Express.js / Nest.js

3. Strong experience with MongoDB (or MySQL / PostgreSQL / DynamoDB)

4. Strong understanding of system design & scalable architecture

5. Hands-on experience in:

Event-driven architecture / Domain-driven design

MVC / Microservices

6. Strong in automated testing (especially integration tests)

7. Experience with CI/CD pipelines (GitHub Actions or similar)

8. Experience managing production systems

9. Solid understanding of performance, reliability, observability

10. Cloud experience (AWS preferred; GCP/Azure acceptable)

11. Strong coding standards — Clean Code, code reviews, refactoring

Role Summary

We are looking for a skilled Software Developer with 3+ years of experience to work on enterprise platforms in EdTech, HRMS, CRM, and Online Examination Systems. The role involves developing scalable web and mobile applications used by institutions and organizations.

Key Responsibilities

• Develop and maintain backend services using Node.js and PHP.

• Build and enhance mobile applications using React Native.

• Design and integrate REST APIs and third-party services.

• Work with databases (MySQL/PostgreSQL) for performance-driven applications.

• Collaborate with product, QA, and implementation teams for feature delivery.

• Troubleshoot, optimize, and ensure secure, high-performance systems.

Required Skills

• Strong experience in Node.js, PHP, and React Native.

• Good knowledge of JavaScript, API development, and database design.

• Experience with Git, version control, and deployment processes.

• Understanding of SaaS-based applications and modular architecture.

Preferred

• Experience in ERP, HRMS, CRM, or Education/Examination platforms.

• Familiarity with cloud environments and scalable deployments.

Qualification: B.Tech / MCA / BCA / Equivalent

Apply: Share your resume with project details and current CTC.

About Us

HighLevel is an AI powered, all-in-one white-label sales & marketing platform that empowers agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. We are proud to support a global and growing community of over 2 million businesses, comprised of agencies, consultants, and businesses of all sizes and industries. HighLevel empowers users with all the tools needed to capture, nurture, and close new leads into repeat customers. As of mid 2025, HighLevel processes over 4 billion API hits and handles more than 2.5 billion message events every day. Our platform manages over 470 terabytes of data distributed across five databases, operates with a network of over 250 microservices, and supports over 1 million hostnames.

Our People

With over 1,500 team members across 15+ countries, we operate in a global, remote-first environment. We are building more than software; we are building a global community rooted in creativity, collaboration, and impact. We take pride in cultivating a culture where innovation thrives, ideas are celebrated, and people come first, no matter where they call home.

Our Impact

As of mid 2025, our platform powers over 1.5 billion messages, helps generate over 200 million leads, and facilitates over 20 million conversations for the more than 2 million businesses we serve each month. Behind those numbers are real people growing their companies, connecting with customers, and making their mark - and we get to help make that happen.

About the Role

We’re looking for a Senior Software Engineer to join our Notifications Team, which powers the delivery and orchestration of notifications across all Client Portal. This system ensures that millions of users stay informed and engaged through email, push, in-app, and other channels, reliably and at scale - handling close to 10 million notifications every day for businesses and creators around the world. As a Senior Engineer, you’ll design and build systems that guarantee reliable, ordered, and context-aware delivery across multiple channels. You’ll work on challenges such as multi-channel routing, message deduplication, rate limiting, personalization, and observability - ensuring notifications are timely, secure, and contextually relevant. Collaborating closely with product, infrastructure, and data teams, you’ll help shape the future of one of the platform’s most critical communication systems.

Responsibilities

• Own and scale the Client Portal Notifications System, ensuring reliable, real-time delivery across in-app, push, email, and other channels within Courses, Communities, and GoKollab
• Design and optimize high-throughput, event-driven backend services that process 10M+ notifications daily, maintaining high availability, ordering guarantees, and minimal latency
• Implement features such as multi-channel routing, message deduplication, rate limiting, personalization, and delivery tracking to improve user engagement and system efficiency
• Build robust observability into the notification pipeline—covering monitoring, logging, and distributed tracing—to proactively detect failures and improve delivery success rates
• Ensure data security, privacy compliance (CAN-SPAM, GDPR), and safe storage of user communication preferences and delivery metadata
• Collaborate with product, infrastructure, and frontend teams to design APIs, event schemas, and SDKs that simplify notification integration across all Client Portal products
• Participate in architecture reviews, on-call rotations, and incident retrospectives to uphold operational excellence and continuous improvement

Requirements

• 4+ years of hands-on software engineering experience building and scaling high-volume distributed systems or event-driven architectures
• Strong backend engineering and distributed system design skills, with hands-on experience in API development, data modeling, and systems architecture using Node.js (NestJS preferred), TypeScript, PostgreSQL, MongoDB, and Redis
• Expertise in backend performance optimization, caching strategies, and event-driven architectures (e.g., Redis, Kafka, Pub/Sub)
• Familiarity with notification protocols and integrations (SMTP, FCM, APNs, in-app SDKs) and email templating systems
• Familiar with modern frontend frameworks (React, Vue, Angular), advanced UI engineering patterns, and CSS libraries like Bootstrap or Tailwind CSS
• Advanced experience with complex state management libraries (e.g., Redux, Vuex, MobX) and architectural design of large-scale application state
• Proven track record of optimizing frontend performance and web vitals at scale, including experience with server-side rendering (SSR), edge, or hybrid rendering architectures
• Familiarity with frontend and backend observability—including monitoring, tracing, error tracking, and performance profiling in production (e.g., Grafana, Prometheus, Sentry, PostHog)
• Strong understanding of security best practices across the full stack - including authentication, authorization, access control, secure data flow, and privacy compliance
• Excellent communication and cross-functional collaboration skills, able to drive complex initiatives, lead technical discussions, and mentor junior engineers

We are looking to hire a Senior Backend Developer, with over 4+ years of experience, to directly work with the CTO and contribute in building and developing new products and feature sets for NostraGamus. The work will entail the opportunity to explore and utilise the latest developments in the world of technology, and formulate ways to incorporate them into day to day work to create stellar products. The candidate must have had significant exposure in building real products, including working with various stakeholders across product and marketing teams. Prior knowledge in building games at scale is highly desirable, but not necessarily.

The following skillsets are highly essential:

1. Expertise in Node Js&Javascript, and hobbyist interest in few other languages like Python, Ruby, PHP. Must have done C/C++ programming in school/college
2. Deep knowledge on Database systems, especially PostgreSQL, and any noSQL clones, including knowledge to optimise
3. Awareness of Docker, virtualization, Redis or similar caching toolsets
4. Absolute mastery in using Unix based systems and Bash. Ability to work in seamlessly in headless environments is a must.
5. Disciplined in approaching problems, ability to maintain composure under catastrophic failures and propensity to work under deadlines

Bonus Points :

1. Passionate about building new products - having done a few personal projects, regardless of success achieved or goals completed.
2. Prior knowledge in building games at scale.
3. Good understanding in AWS and its various services - EC2, ECS, RDS, SQS, Elastic Beanstalk, Elasticache, Route53.
4. Strong interest in Mathematics, Probability Theory, Statistics, Machine Learning and ability to apply math in real-world applications.

Company Description

BeBetta is a gamified platform designed for gamers who crave excitement, engagement, and real-world rewards. By playing games and making live predictions, users earn BetCoins, which can be redeemed for tangible prizes. Our unique approach blends gaming, predictions, and rewards, driving an immersive experience that revolutionizes user engagement. We are a high-growth, data-driven, and gamified tech startup committed to innovation and impact.

The Opportunity:

BeBetta is building the future of fan engagement. To do this, we need a backend that can handle millions of concurrent users making real-time predictions during live events. This requires a shift in our technology towards systems built for massive scale and low latency.

That’s where you come in. We are looking for a Senior Backend Engineer to lead our transition to a Go-based microservices architecture. You will be the driving force behind our most critical systems—the prediction engine, the rewards ledger, the real-time data pipelines. While our roots are in Node.js, our future is in Go, and you will be instrumental in building that future.

What You'll Achieve:

• Architect our core backend in Golang: You will design and build the services that are the backbone of the BeBetta experience, ensuring they are blazingly fast and incredibly reliable.
• Solve hard concurrency problems: You'll tackle challenges unique to real-time gaming and betting, ensuring fairness and accuracy for thousands of simultaneous user actions.
• Drive technical strategy: You will own the roadmap for evolving our architecture, including the thoughtful migration of essential services from Node.js to Go.
• Elevate the engineering bar: Through mentorship, exemplary code, and architectural leadership, you will help make our entire team better.
• Ship with impact: You will see your work go live quickly, directly enhancing the experience for our growing user base.

What You'll Bring:

• A track record of building and deploying high-performance backend systems in Golang.
• Senior-level experience (4+ years) in system design, microservices, and API development.
• Pragmatic experience with Node.js and an understanding of how to manage and migrate a monolithic or service-based system.
• Deep knowledge of database principles (PostgreSQL preferred) and high-performance data access patterns (using tools like Redis).
• Expertise in modern infrastructure: Docker, Kubernetes, and a major cloud provider (GCP/AWS).
• A strong belief that testing, observability, and clean architecture are not optional.
• An innate curiosity and a passion for solving complex problems, whether they're in code or on a whiteboard.

Why You'll Love Working Here:

This isn't just another backend role. This is a chance to put your fingerprint on the foundational technology of a fast-growing company in the exciting world of sports tech and gaming. You'll have the autonomy to make big decisions and the support of a team that's all-in on the mission.

• 5+ years of experience in backend development with a strong focus on Node.js and TypeScript.
• Strong understanding of Node.js frameworks.
• Proficiency in TypeScript, with experience in building scalable applications.
• Solid understanding of RESTful API design, WebSocket, and asynchronous programming patterns.
• Experience with databases (SQL/NoSQL), including MySQL, MongoDB, Redis, etc.
• Familiarity with blockchain technologies and cryptocurrency exchanges is a plus.
• Strong knowledge of security principles and best practices for web applications.

Role description:

We are looking for Senior Software Engineer with expertise and experience in designing, developing and testing applications including new developments, enhancements, maintenance and support. The role involves continuous collaboration with team, partners.

Candidate description:

Responsibilities

• Building interactive consumer data from multiple systems and RESTfully abstract to the UI through a Node.js backend
• Address and improve any technical issues
• Strong commitment to quality and delivery
• Collaborate well with engineers, and specialists to design and create advanced, elegant and efficient system
• Create Unit and Integration tests to ensure the quality of code
• Be responsive to change requests and feature requests
• Write code that is cross-platform and cross-device compatible
• Ability to wear many hats and learn new technologies quickly
• Used CI/CD and AWS platform

Qualifications

Experience

• 4-8 years of experience in IT industry
• Experience with modern frameworks and design patterns, minimum one-year experience with MERN Fullstack paradigm

Requirements

• In depth working knowledge of NodeJS 
• Database – MongoDB, SQL, postgre

• Obsession with lean, clean and organized code

• Solid Understanding of HTTP protocol and how server-side code is processed on the client

• Knowledge of the following will be considered as an advantage:
• Experience with cloud technologies also a plus
• Creating secure RESTful-based web services in XML and JSON, Javascript,
• Creating Unit test cases

Role and Responsibilities:

• As a backend developer, your primary focus will be the development of all server-side systems
• A basic understanding of front-end technologies is necessary as well. You will test, secure and deploy your code
• Work experience on Node.js is a must along with a server-side framework like Express.js
• Strong proficiency in JavaScript
• Writing reusable, testable, and efficient code
• Experience and proficiency integrating with REST APIs
• Understanding of scalable computing systems, software architecture, data structures, and algorithms
• Experience in working with databases such as MongoDB, Redis, Elasticsearch, etc.
• AgileScrum development cycle understanding.

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.
• Good knowledge of MongoDB(Must) & any other MySQL Database.
• Good knowledge of Redis, its data types, and their use cases.
• Experience developing and deploying REST APIs.
• Knowledge and working experience in Cloud environment - AWS or Azure
• Good knowledge of Unit Testing and available Test Frameworks.
• Should be a fast learner and a go-getter without any fear of trying out new things

Responsibilities:

• Build reusable code and libraries for future use.
• Own & build new modules/features end-to-end independently.
• Collaborate with other team members and stakeholders.

Requirements:

• Thorough understanding of Node.js, JavaScript, its quirks, and workarounds.
• Excellence in at least one framework like strongloop loopback, express.js, sail.js etc.
• Excellence in at least one Javascript framework like Angular, vue.js, Ember, React or Backbone.
• Basic architectural understanding of modern day web applications.
• Diligence for coding standards.
• Must be good with git and git workflow.
• Experience of external integrations is a plus.
• Working knowledge of AWS, GCC, Azure.
• Expertise with linux based systems.
• Experience with CI/CD tools like jenkins is a plus.
• Experience with testing and automation frameworks.
• Extensive understanding of RDBMS systems.
• Interpersonal Go-getter attitude and a passion for making killer web applications.
• Good communication and interpersonal skills.
• Ability to work in a high pressure environment.
• Ability to quickly understand complex problems and devise effective solutions.
• Knowledge of D3/NodeJS/AngularJS/lodash etc.
• Experience on Cloud as a platform or Infrastructure.
• Inclination to application design standards.