Lead Backend

Role Overview

We are seeking a skilled Backend Developer with proven experience in Node.js, modern frameworks and GraphQL. The ideal candidate will excel in building robust, scalable APIs and integrating diverse databases, while collaborating within a fast-paced, cross functional team.

Key Responsibilities

• Design, develop and maintain server-side applications using Node.js, NestJS and ExpressJS frameworks.

• Build, optimize and maintain GraphQL APIs, including schema design, query and mutation implementation and resolver logic.

• Integrate and manage SQL (MySQL) and NoSQL (MongoDB, DynamoDB) databases.

• Write clean, maintainable and eSicient code following best practices and coding standards.

• Develop and execute unit tests; participate in code reviews to ensure code quality.

• Collaborate with frontend developers and other stakeholders to define, design and ship new features.

• Utilize Git workflows for version control, branching, merging and code deployment.

• Document technical specifications and architectural decisions.

• Stay up to date with backend and API technologies, including emerging GraphQL tools and best practices.

Required Skills & Qualifications

• 2-6 years of proven experience in backend development using Node.js

• Hands-on experience with NestJS and ExpressJS frameworks.

• Strong proficiency in building and maintaining GraphQL APIs, including schema definition, query optimization and resolver implementation.

• Solid understanding of SQL (MySQL) and NoSQL (MongoDB, DynamoDB) databases.

• Proficiency in JavaScript (and/or TypeScript).

• Experience with Git and collaborative development workflows.

• Proficiency in writing unit tests and using testing frameworks (e.g., Jest, Mocha).

• Understanding of RESTful and GraphQL API design and integration.

• Familiarity with security best practices in backend and API development.

• Excellent problem-solving and teamwork skills.

Preferred Qualifications

• Experience with GraphQL server frameworks and tools (e.g., Apollo Server, Prisma).

• Familiarity with GraphQL clients (Apollo Client, Relay) and frontend integration.

• Experience with containerization (Docker, Kubernetes).

• Knowledge of CI/CD pipelines, AWS Lambda functions, AWS Cloudwatch, AWS S3 and DevOps practices.

• Experience with cloud platforms (AWS, Azure, GCP).

• Exposure to microservices architecture and Agile/Scrum methodologies.

Key Responsibilities:

• Design, develop, and maintain robust backend services using Core Java and Spring Boot
• Develop and optimize queries in MongoDB, including aggregation and indexing
• Build RESTful APIs and integrate third-party services
• Write clean, maintainable, and scalable code following best practices
• Collaborate with cross-functional teams to gather and implement requirements

Required Skills:

• 5+ years of experience in Core Java
• Strong expertise in Spring Boot (REST APIs, Security, Data)
• Hands-on experience with MongoDB (CRUD operations, schema design)
• Experience with Microservices architecture

What you will be doing

● Building and maintaining micro services.

● Develop new features and improve existing features of the application.

● Coding, Implementing, Unit Testing and Documenting Typescript and Javascript based services.

● Design, build, and maintain efficient, reusable, and reliable code.

● Code reviews and ensuring adherence to software development standards.

● Contribute to team and organizational improvements in process and infrastructure.

● Participating in requirements gathering and functional specification activities.

● Resolving and helping to mitigate production issues.

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.

Company: Runo – https://runo.in

Location: Hyderabad, India

Who We Are:

Runo is a product based funded company incubated at T-Hub (IIITH Campus) and currently operating from Cyber Towers, HiTec City. We offer Call Management CRM for sales teams across the world. We are currently scaling up the engineering team to support the continued growth of the user acquisition in the global market, after a steady success in the Indian market.

The Role:

Runo is looking for a Lead Backend Developer to join our team. The lead backend developer is responsible for scaling up the existing architecture to handle billions of requests every month (We are currently at a scale of 100 million requests per month). You will be contributing in architecting the database/reporting layer to support complex queries and data exports of millions of records. You will be a lead developer responsible for development of new software products and enhancements to existing products.

Our Ideal candidate:

• Proficiency in NodeJS.
• Expert knowledge of NoSQL Databases (MongoDB is preferred)
• Hands on experience of working on products handling more than a million requests per month
• 4-8 years of relevant professional work experience 
• Self-motivated, able to work independently. Commitment to high quality.

Responsibilities:

• Contribute to the product architecture in handling millions of requests per day.
• Optimizing the architecture for regional data zones.
• Develop high performance, reusable & bug free APIs
• Optimize the existing APIs for performance (by data denormalization/ decoupling the long running APIs using queues)
• Get familiar with the AWS Services like API Gateway, Lambdas, SNS, SQS, SES

What We Offer: 

• Competitive Salary
• ESOPs
• Medical Insurance

You have 5 years or more of Backend end development experience with expertise in designing and implementing high-performance applications.

Worked with and built high-performance products using Node Js/GoLang/ Python and have seen the product evolution cycle from PoC to Production

You have a deep understanding of design principles and can rightly judge/implement solutions to complex problems

You are capable of writing high-quality code that conforms to the standards and best practices in a particular language/framework.

You have experience building a product using a mainstream library or framework.

You love to own end to end responsibility, starting from defining the problem statement (either yourself or alongside your peers), development (PoC if needed), testing, releasing in staging & then production environment, and finally monitoring.

Previous work experience in product-based startups

Experience building for products that have scaled and have seen the product evolution