
Job Description
We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.
What we are asking
- A fast-paced environment is something you feel really comfortable in
- Integration of user-facing elements developed by front-end developers with server side logic
- Professional working experience in Node.js
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
- Integration of data storage solutions with MongoDB, file stores like AWS S3 or Heroku/AWS.
- Creating API for consumption using ExpressJS.
- Good Knowledge of ExpressJS middle-wares.
- Working experience with CI/CD, test- and deployment automation, and containers
Skills And Qualifications
- Strong proficiency with JavaScript.
- Strong knowledge of Node.js and ExpressJS and other related tech/middle-wares/options.
- Understanding the nature of asynchronous programming and its quirks and workarounds
- Basic understanding of front-end technologies, such as HTML5, and CSS3
- Understanding accessibility and security compliance.
- User authentication and authorization between multiple systems, servers, and environments.
- Integration of multiple data sources and databases into one system
- Understanding fundamental design principles behind a scalable application
- Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
- Creating database schemas that represent and support business processes
- Implementing automated testing platforms and unit tests
- Proficient understanding of code versioning tools, such as Git
- Good to have deployment experience of NodeJS app on Heroku / AWS / Azure etc.

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Backend Developer (Senior Level) (Will also handle CI/CD Tasks)
Responsibilities:
● Design and develop robust backend APIs and services using NestJS and Node.js for a
scalable web3 domain platform.
● Collaborate closely with cross-functional teams to deliver user-centric backend solutions.
● Maintain and optimize secure, scalable, and efficient database structures using
PostgreSQL.
● Implement and integrate third-party APIs, including blockchain services, oracles, and
payment gateways.
● Write clean, maintainable, and testable code adhering to best practices and coding
standards.
● Ensure high performance, reliability, and scalability of backend systems.
● Participate in architecture design discussions, focusing on scalable and maintainable
system architectures.
● Implement caching mechanisms to optimize performance and reduce latency.
● Set up and maintain monitoring tools to track system health, identify bottlenecks, and
resolve issues.
● Conduct thorough testing, including unit, integration, and performance tests, to ensure
code quality.
● Ensure secure coding practices and implement robust authentication and authorization
mechanisms (e.g., OAuth2, JWT).
● Optimize database queries, indexing, and performance for efficient data storage and
retrieval.
● Create and maintain clear and comprehensive technical documentation for APIs, system
designs, and troubleshooting processes.
● Stay updated on backend and blockchain trends to incorporate innovative solutions.
Qualifications:
● 4-6 years of professional backend development experience.
● Expertise in Node.js and asynchronous programming concepts.
● Hands-on experience with NestJS.
● Proficiency in TypeScript and knowledge of modern backend development patterns.
● Solid understanding of PostgreSQL or other relational databases.
● Experience with API development, RESTful services, and database design.
● Familiarity with deploying and maintaining applications on cloud platforms (AWS, Azure,
or GCP).
● Familiarity with maintaining CI/CD pipelines, Docker, and Kubernetes, with a focus on
resolving errors as needed.
● Strong communication, collaboration, and problem-solving skills.
-
Design systems independently with minimal interaction from the architects
-
Lead a team of software developers to implement systems
-
Continuously find ways to increase the quality of the code
-
Liaising with team members, management, and clients to ensure projects are completed to
standard.
-
Anticipates problems and future technical needs and takes necessary steps to address issues.
-
Enthusiastically follow industry trends and developments
-
Understands how various technology and tools work so that the team picks the right tool for the
job.
Requirements:
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We are looking for a Backend Developer to join our team to build the first-of-its-kind product in the space - and we are looking for out-of-the-box thinkers with the original thought process and lateral thinking. The code you ship will be used by thousands of users every day helping them get their work done. You will join a young, dynamic and fast-paced environment, and work with cross-functional teams to design, build, and roll out products that deliver the company's vision and strategy.
Responsibilities :
- Backend development with Node.js, MongoDB and Typescript.
- Developing and testing flexible, scalable applications.
- Collaborate with Front end developers to produce optimum output.
- Think out of the box, discuss and implement your ideas over the phase.
Required skills :
- Strong knowledge in creating RESTFUL APIs(web service)
- Proficient understanding of code versioning tools: Git.
- Good knowledge of Docker & Shell scripting
- Basic knowledge of web fundamentals: HTML, CSS
- Experience in DevOps is an added advantage
LambdaTest is a cloud-based testing platform aimed at bringing the whole testing ecosystem to cloud. LambdaTest provides access to a powerful cloud network of 2000+ real browsers and operating system that helps testers in cross-browser and crossplatform compatibility testing. The product roadmap is evolving and there are many more functionalities and features which will be added to the product. The company is backed by the Tier 1 VC funds and entrepreneurs of the industry. We are growing at a fantastic rate. This is an incredible opportunity for someone talented and ambitious to make a huge impact.
Role
- Develop & maintain shared APIs, libraries and frameworks
- Improve the performance and reliability of our services including databases, CI/CD pipeline, web services, and other integrations
- Monitor and scale our cloud infrastructure
- Collaborate with other teams on security, automation, and internal tools
- Evaluate and develop new tools and technologies that can help achieve company-level goals
Required Candidate profile
- 4 - 8 years of experience in Development.
- Should have good knowledge of backend Technologies like Python, Nodejs, Golang.
- Should have worked with Databases like Mysql, monogdb etc.
- Should have working experience in cloud environment.
- Engineering degree in computer science, engineering or related discipline from good institutes
Overview of the role
As a Node Developer you will be 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
- Overall 3-5 Years of experience in writing unit and integration tests to ensure the robustness and reliability of web applications and services.
- Measure and improve the performance of microservices. Catalyse 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 the design and development of Web Applications, and highly scalable distributed systems.
- Should have experience in development skills using the latest technologies including NodeJS(fastify framework), Microservices, PostgreSQL, Redis, etc. Should have exposure to NoSQL and SQL development.
- Comprehensive knowledge of physical and logical data modeling, and 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 teams 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, Information Technology
Node.js Developer Responsibilities:
- Developing and maintaining all server-side network components.
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
- Bachelor's degree in computer science, information science, or similar.
- At least 4 years' experience as a Node.js developer.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Great organizational and time management skills.
- Availability to resolve urgent web application issues outside of business hours.
• Design, build, and maintain scalable applications using Python.
• Contribute to the entire implementation process including driving the definition of improvements
based on business need and architectural improvements.
• Act as a subject matter expert for Application Software developers and Engineers.
• Handle server-side code for a production platform and contribute to new features
To be the right fit, you'll need:
• More than 4+ years of experience as a software developer in Python, with knowledge of at least one Python web framework such as Django, Flask, etc.
• Good understanding of common design patterns and architecture principles to design reliable and Scalable applications
• Strong communication skills
• Knowledge of databases line NoSQL or MongoDB
• Good to have AWS and Docker or Web services
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
• Should have 5+ years of work experience in design, develop, Code and Unit Test web and desktop-based applications written in .Net framework starting from 4.x and above.
• Strong analytical skills to understand a given requirement and provide work estimates.
• Strong Object-Oriented Programming knowledge.
• Strong experience with Static Code Analyzers like Fortify.
• Should have good understanding of web servers such as IIS and Front-end such as HTML’s and Razor based engines.
• Strong debugging skills using .net front end and backend.
• Strong coding experience and thorough understanding of programming languages such as C#, VB.NET, ASP.Net, ADO.Net, JQuery, JavaScript, Traditional Web Services, WCF, Web API and other Scripting languages such as pythons.
• Strong working knowledge on various design patterns such as MVC, MVVM, DDD, Repository Pattern and any custom/hybrid framework as designed by the Architects.
• Should have a strong working knowledge of Azure DevOps.
• Strong knowledge and understanding of data sharing medium using JSON, XML and other media types.
• Strong knowledge on Entity Framework (6 and above) and other ORM such as Dapper.
• Strong knowledge and programming skills in Database such SQL SERVER, Oracle, My SQL and SQL Express. Additionally, nice to know-how knowledge in MS ACCESS.
• Strong knowledge and coding experience in REST based web services and service-oriented design patterns using WCF and other API’s.
• Should have used IDE such as Visual Studio and Visual Studio Code for Front-end development.
• 1+ years of building SPA web solutions using Angular 6/7/8 , BackBone, Bootstrap
• 5+ years building HTML5 complaint pages
• 3+ years of experience using TypeScript
• 3+ years of writing automated testing using Jamine or others
Day to Day job Duties: (what this person will do on a daily/weekly basis)
• Co-ordinate/mentor other Junior developers on a day to day basis.
• Understand the use cases/User Story, code and develop on a designed platform/pattern.
• Strict adherence to coding standards.
• Participate self-code review/peer reviews and correct errors wherever applicable before checking in the final code into the Branch/code repo.
• Create code documentations wherever applicable and as set guidelines by the team.
• Create and perform Unit Tests wherever applicable as set guidelines by the team.
• Provide feedback and assist in estimation planning.
• Merge code branches as and when required.
• Create and publish release documentations and application deployments as and when requested.
• Report out statuses to the leads onshore daily during the Stand-up calls.
• Additionally, update efforts on a given work item on everyday basis.
• Provide true estimates on work assigned prior development. Also ask questions/provide comments on User Stories/work items assigned.
• Be a team player and flexible towards availability in case of any urgent issues that need immediate attention.
• Plan out vacations in advance (min. 2 weeks of adv. Notice).
Nice to have(not a must) experience, skills
• Good understanding of Service Workers.
• Prior coding experience using FORTRAN.
• Experience on 3rd party tools like Spire.Pdf, PDF.Js.
• Knowledge of Rapid application development framework like DevExpress, Code on Time, HighCharts.
• Knowledge of code clean up tools like CodeMaid.
• Knowledge of Power BI and O365 Suites of applications.
• knowledge of SQL Data tools like SSIS and SSRS.








