

At LambdaTest, We help developers and testers fix their applications across a combination of 2000+ browsers and Operating Systems by providing a complete cross-browser ecosystem on the cloud. As Backend Developer You will work with other Developers throughout the Software Development Life Cycle.
You will join a dynamic and fast-paced environment and work with cross-functional teams to design, build and roll out product that deliver the company’s vision and strategy.
What’s the Opportunity?
- As a hands-on engineering professional, you'll stay on top of the details and will be more focused on building a better, more efficient program and creating the best user experience and
- Support and collaborate with our service engineers in getting to the bottom of issues and come up with robust solutions.
- Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.
- Participate in a culture of code reviews, writing tech specs, and collaborating closely with other people.
- Design distributed systems using micro services architecture would be plus.
- Implementing high performance and non-blocking systems to serve traffic heavy SaaS based product.
Requirements and qualifications-
- Bachelor's degree in Computer Science or equivalent combination of technical education with 2-4 Years of work experience.
- Experience with one or more general purpose programming languages, including but not limited to:Python, Golang, NodeJs
- A solid understanding of software construction
- The ability to naturally follow good development practices like test automation, CI/CD, source version control, etc.

About LambdaTest
About
Perform manual or automated cross browser testing on 2000+ browsers online. Deploy and scale faster with the most powerful cross browser testing tool online.
Tech stack



Connect with the team
Similar jobs
We are seeking a highly skilled Backend Developer to join our dynamic team. As a backend developer, you will play a critical role in designing, developing, and maintaining the core infrastructure and APIs that power our applications. You will work on creating scalable, efficient, and secure backend solutions leveraging cutting-edge technologies.
Key Responsibilities
- Develop and maintain server-side logic, APIs, and services using Node.js.
- Design and implement data storage solutions with MongoDB for scalability and reliability.
- Integrate and manage caching mechanisms using Redis to enhance application performance.
- Deploy, monitor, and maintain backend services on AWS using services like EC2, Lambda, S3, RDS, and more.
- Ensure system security and data protection by following industry best practices.
- Debug and optimize code for performance, scalability, and reliability.
- Collaborate with frontend developers, product managers, and other stakeholders to ensure seamless integration and delivery.
- Write clean, well-documented, and testable code.
- Monitor and manage the health and performance of backend systems, implementing alerting and monitoring solutions.
Required Skills and Qualifications
- Strong proficiency in Node.js, with at least [Insert Minimum Years, e.g., 3+ years] of hands-on experience.
- Hands-on experience with MongoDB and a strong understanding of NoSQL database design principles.
- Proficiency in Redis, including configuring, maintaining, and optimizing its usage.
- Solid experience with AWS services, including deploying, managing, and scaling cloud-based solutions.
- Familiarity with RESTful API design and best practices.
- Understanding of asynchronous programming and event-driven architecture.
- Experience with version control systems like Git.
- Knowledge of best practices in software development, including CI/CD and automated testing.
- Problem-solving mindset with strong debugging and troubleshooting skills.
Preferred Skills
- Familiarity with containerization and orchestration tools like Docker and Kubernetes.
- Experience with serverless architecture and services such as AWS Lambda.
- Knowledge of authentication and authorization mechanisms (OAuth, JWT).
- Exposure to message queues like RabbitMQ or Amazon SQS.
We're looking for Node js developers with over 2+ years of experience and strong expertise in Javascript based development using Node js and Express. We are looking for cadidates who are go-getters and are leaning towards leadership positions. Candidates must have a proven history of building, scaling, optimising and securing
We would prefer candidates who can join immediately or are currently serving their notice period.
Key Skills Required :
Node.js Developer :
duties and 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
- Build customer-facing UI and back-end services for payment processing administration and management
- Code, teste and operate node.js based services
- Effectively use tools and ingenuity to identify and fix defects before they become a problem
requirements and qualifications
-
- Previous working experience as a Node.js Developer for 2 years
- BE /B.Tech in computer science or similar relevant field
- In depth knowledge of Node.js
- Hands on experience with HTML, CSS, and AJAX
- Development experience designing object oriented JavaScript and SVG
- Applicable knowledge of web libraries and frameworks such as AngularJS, Polymer, and Closure
- Familiarity with the whole web stack, including protocols and web server optimization techniques
- Strong analytical skills and problem solving aptitude
- Attention to details



What kind of work will you get?
We are looking for a Golang developer.
Examples of technical tasks:
Working on our backend SDK to implement APIs that will be consumed by the frontend widgets
Designing APIs for different auth recipes
Architecting auth flows
You will also be given non technical tasks like product brain storming, competitor analysis and writing documentation.
Note: Compensation is as per the applicant's geography
Requirements
Well versed in Golang with 2+ years of professional experience
Familiar with and comfortable working with Web frameworks like FastAPI, Django and Flask
Familiar with HTTP networking in Golang
Strong understanding of async and sync modes in Golang
Bonus:
Contributed to open source, or have your own open source repo with a community and many github stars
Built an in-house authentication or authorization solution or worked with solutions such as Keycloak, Auth0, Ory, Okta etc
Skills:
We would prefer it if the candidate has 1 + years of experience.
- Node.js - must have knowledge and experience
- MySQL/MongoDB - must have knowledge and experience
- GIT
- Any JS backend framework
Responsibilities:
- Participate in the entire application lifecycle, focusing on coding and debugging
- Write code to develop functional web applications
- Troubleshoot and debug applications
- Perform UI tests to optimize performance
- Collaborate with Front-end developers to integrate user-facing elements with server-side logic
- Gather and understand technical and design requirements
- Build reusable code and libraries for future use
- Liaise with developers, designers and system administrators to identify new features
- Follow emerging technologies
Qualification:
- Bachelors in IT Engineering (Preferred)
- Master in Computer Applications
- M.Sc IT
Other Information:
Location:
Mumbai, Malad.
Age group:
22 years to 27 years.
Working Days:
Monday to Friday only, Saturdays and Sundays fixed off.
Working Timings:
10:30 am to 7:30 pm

We are looking for a skilled and experienced Node.js Developer with at least 4 years of professional experience to join our team. As a Node.js Developer, you will be responsible for developing robust and scalable web applications using JavaScript and various frameworks.
Roles and Responsibilities
• Production platform hands-on experience involving Node JS & REST API.
• Hands-on production platform experience working with micro-service back-end architecture.
• Working knowledge of GRPC, HTTPS, and GRAPHQ protocols.
• Well-versed in cloud deployment of code blocks.
• Experience with JS testing and code analysis frameworks such as Mocha.
• Utilize modern JavaScript frameworks such as Express.js and Sails.js to build efficient and scalable applications.
• Work with databases like MongoDB and PostgreSQL using Mongoose and Sequelize ORM.
• Integrate messaging systems like Kafka and RabbitMQ for reliable event-driven communication.
• Write unit tests using Mocha, Chai, and Jest frameworks to ensure code quality and reliability.
• Utilize AWS S3 bucket for secure and scalable storage of data and media files.
• Collaborate with QA engineers to perform thorough testing and bug fixes.
• Work with third-party APIs such as Postman, Twilio, SendGrid, Firebase, and KeyCloak for various integrations.



We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full stack developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.
Responsibilities:
• Developing front end website and back-end website applications.
• Seeing through a project from conception to finished product.
• Designing and developing integrations with 3rd party apps.
• Working on Next JS and Node JS .
• Design, build and maintain SaaS-based products.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Web services and Integration with Business applications and various softwares
• Work with outside data sources and API’s, REST API's
• Unit-test code for robustness
• Work on bug fixing and improving application performance.
Requirements:
• Experience of 1-3 years.
• Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
• Proficiency with languages such as React JS, Next JS, Node JS, PHP Laravel, Angular, WordPress, REST API's
• Excellent verbal communication skills.
• Good problem-solving skills.
• Knowledge of software development principles and design patterns.
• Excellent problem-solving skills and ability to learn new technologies quickly.
• Strong communication skills and ability to work collaboratively in a team environment.
Job Type: Full-Time, 9 am to 6:30 pm (Monday to Friday)
· Understanding the fully asynchronous behaviour of NodeJs
· Knowledge of the common NodeJs or web server exploits and their solutions, accessibility, and security compliance's.
· Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
· Excellent working knowledge of databases, database schema that represent and support business processes
Mandatory:
Skill sets: Node JS, JavaScript, Mongo DB
Deployment experience on Production Server.
Location: Bangalore

We are looking for a Senior Back-end Node.js Developer who is passionate about design, architecture, and programming. Responsibilities include implementing business logic and developing APIs and services. Your primary focus will be development of all server-side logic, definition, and maintenance of databases, and ensuring high performance and responsiveness to requests from the front-end. If you are also passionate about Node.js and software design/architecture, we’d like to meet you.
Requirements:
- 2+ years working in back-end web development with Node.js
- 4+ years working with Javascript
- Experience with server-side templating languages
- Experience with Express.js
- Experience consuming and building robust RESTful APIs
- Experience with Relational Databases like MongoDB, MySQL
- Solid understanding and extensive experience with version control tools like Git
- Exceptional problem solving and ability to work independently
- Exceptional learning skills
- Fluency in both oral and written English
- Understanding of Agile methodologies

- B.E/M.C. A Or B.C.A Degree in Computer Science, Engineering, MIS, Or Similar Relevant Field
- Strong Knowledge of PHP Web Frameworks E.G Laravel
- Understanding the Fully Synchronous Behaviour Of PHP
- Understanding of MVC Design Patterns
- Basic Understanding of Front-End Technologies, Such as JavaScript, HTML5, And CSS3 - Knowledge of Object-Oriented PHP Programming.
- Strong Knowledge of The Common PHP Or Web Server Exploits and Their Solutions
- Understanding Fundamental Design Principles Behind A Scalable Application.
- Integration of Multiple Data Sources and Databases into One System
- Familiarity With SQL/NoSQL Databases and Their Declarative Query Languages
- Proficient Understanding of Code Versioning Tools, Such as Git, Bitbucket.
- Understanding Fundamentals of Cloud Technologies E.G AWS
- Knowledge of Node.js And React.js Should Be an Advantage.
- Knowledge of HealthCare and e-Commerce domain will be good.
Aimed at building a massive parallel economy, This For That, is looking for highly driven engineers to build out a world class product. The product is in its early stages so there’s a lot to learn and build from scratch. You will get to work alongside seasoned business and marketing professionals and become part of the core engineering team.
Ideal skills:
1) 2-5 years of professional JavaScript development experience
2) Understanding of asynchronous programming and its quirks and workarounds
3) Comfortable working through the entire stack from the user interface through systems levels
4) Understanding accessibility and security compliance
5) Strong Logical and Analytical Skills
6) Experience in consuming web services (REST) and processing data (JSON)
7) Experience with SQLite, NoSQL, Redis or other databases
8) Proven experience in building API services using NodeJS Express and related frameworks
9) Good understanding of NodeJS asynchronous runtime
10) Good understanding of JS concepts on callbacks and closures
11) Experience in debugging issues related to memory leaks
12) Experience in building highly scalable and high throughput services with sub-second response times
13) Experience with ElasticSearch/Solr
14) Experience working in a collaborative team environment
15) Ability to understand and analyse issues across multiple vendors and interfaces
16) Experience with NoSQL queries
17) Experience with AWS
18) Experience in managing/mentoring small teams
In depth knowledge of all of the above is not mandatory but the nature of the work will involve learning and getting involved with all of the above. You would be working directly with key members of the management team to define and drive technical strategy.
Experience in the mobile space is mandatory. Please only apply if you have been part of building a mobile product. Since our product is mobile only, it is essential that you understand implications on the front end.

