
Sr. Backend Developer for a Product Based Company ( Node.js )
at Upskillist
Responsibilities:
- Resolve complex technical issues and make design decisions to meet the critical requirements of scalable, highly available, multi-tenant enablement of services in the cloud.
- Independently investigate, present options, review and implement completely new functionality OR re-architect an existing solution to meet growing needs
- You will work closely with other development teams, product management, UX, and QA to define and implement a new product offering while ensuring continued functionality.
- Work with various external (application) teams to integrate with the product and help guide the integration.
- You will implement solutions that include database schema, business logic, and some presentation layer work.
- You will use existing methods and best practices in the software industry to create features and platforms with the highest levels of security, reliability, efficiency, and scalability.
- Experience mentoring senior developers.
Requirements:
- 8+ years of experience in software development experience with a proven track record of making technical decisions
- 8+ years of experience in coding in more than one programming language, e.g. Python, GoLang, node.js, etc
- Intimate working understanding of modern web applications from the database to browser
- Intimate understanding of MongoDB and extensive experience with database-driven applications
- Great problem-solving skills and ability to abstract functional requirements
- Excellent communicator in both technical and non-technical contexts
- Experience designing and improving complex software applications
- Experience coaching and mentoring developers at various levels of experience
- You have a sound understanding of programming fundamentals & their application to highly scalable web-based systems.
- You have successfully led a small agile team.

About Upskillist
About
Providing upskillists globally practical, quality education and learning so they can effect real world change in their lives. Providing employers the ability to upskill their employees so they can recruit and retain more staff and deliver real business ROI. Reach out to [email protected]
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Job Description:
As a MERN Full Stack Developer, you will be responsible for developing and maintaining web applications using the MERN (MongoDB, Postgresql, Express.js, React, Node.js) stack. You will work closely with our product and design teams to build high-quality, scalable, and efficient solutions.
Key Responsibilities:
- Develop and Maintain Web Applications: Design, develop, and deploy full-stack web applications using the MERN stack.
- API Development and Integration: Create and integrate RESTful APIs.
- Database Management: Design and manage databases using MongoDB.
- Code Quality and Testing: Write clean, maintainable, and efficient code. Implement unit tests and integration tests.
- Collaborate with Cross-functional Teams: Work closely with product managers, designers, and other developers to deliver high-quality products.
- Performance Optimization: Identify and implement performance improvements for existing applications.
- Stay Updated with Industry Trends: Keep abreast of latest trends and technologies in web development.
Required Qualifications:
- Experience: 3-4 years of professional experience as a Full Stack Developer.
- Technical Skills:
- PostgreSQL: Proficient in database design, indexing, and performance optimization.
- Express.js: Solid experience in building and managing APIs and middleware.
- React: Strong knowledge of React and related libraries (Redux, React Router, etc.).
- Node.js: Expertise in server-side development and asynchronous programming.
- HTML/CSS: Proficient in web markup and responsive design.
- JavaScript/TypeScript: Advanced proficiency in JavaScript and TypeScript.
- Version Control: Experience with Git and Git workflows.
- Soft Skills:
- Strong problem-solving abilities and analytical skills.
- Excellent communication and teamwork skills.
- Ability to work in a fast-paced environment and manage multiple tasks.
- Attention to detail and a commitment to delivering high-quality work.
Preferred Qualifications:
- Experience with cloud services (AWS, Azure, Google Cloud).
- Familiarity with CI/CD pipelines.
- Experience with Docker and container orchestration (Kubernetes).
- Knowledge of GraphQL.
- Prior experience in Agile/Scrum development methodologies.
Benefits:
- Competitive salary and benefits package.
- Opportunity to work with a talented and diverse team.
- Professional development opportunities.
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
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.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge in postgre
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-based app
Role Overview
As a Senior Backend Engineer, you will be working closely with our core team in building products from scratch into large-scale platforms and solving business problems leveraging new and innovative technology. More than anything, we are looking for engineers that are eager to learn and build a meaningful company. We are a small team and encourage engineers to wear many hats
Responsibilities
- Design and build highly reliable and performant applications that deliver a great user experience.
- Own large technical deliverables and execute in a structured manner.
- Take the accountability of the overall health of the applications you build.
- Platformize components as libraries, utilities and promote reuse.
- Be able to conceptualize and develop prototypes quickly
Skills & Requirements
▪ Work Experience between 2 to 6 years in large scale applications with desire to work in fast paced startups
▪ Experience/Knowledge of Node.JS, Express .JS, AWS, MongoDB.
Deep understanding of your tools: Languages, frameworks, systems.
Come be a part of one of the most exciting e-learning startup! A product based company building a B2C subscription product for kids around the world. Best understood as a combination of Netflix + Skillshare + Instagram for kids of ages 5 - 15, there is going to be something new every week to work on!
Already present in over 148 countries, kids of all backgrounds, languages and ages use DIY.org on website, iOS and Android. DIY is a place online where kids truly discover themselves.
We are looking for a Product Engineer - Senior Backend Engineer to join our early stage startup with experience in building B2C products.
If you have experience of working in product based companies (preferably startups), and are looking to build exciting things that children across the world will use - come talk to us!
What you get to do:
- Design and build advanced applications from scratch keeping scalability and performance in mind
- A good handle on both client and server architecture.
- Work on bug fixing and improving application performance.
- Comfortable in owning large scale products and continuously re-evaluating and innovating.
Who are we looking for:
- Experience of 7+ years across product based companies
- Should have worked on building B2C products. Having experience in building edtech products would be a major plus.
- Should be an avid programmer with great problem solving skills.
- Should have a great grasp over NodeJs/Typescript/ AWS microservices/DB design/System Design.
- Should have experience in building scalable server-side systems. Should have significant experience in cloud infrastructure and designing databases.
- Should have knowledge of software architecture, system thinking and design patterns.
We are looking for Backend Developer to join our team. Fieldproxy is the first of its kind product in the space - and we are looking for out of the box thinkers with 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, work with cross-functional teams to design, build, and roll out products that deliver the company's vision and strategy.
Responsibilities :
- Backend development with Nodejs, 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 own ideas over the phase.
Required skills :
- Strong knowledge in creating RESTFUL APIs
- Proficient understanding of code versioning tools: Git.
- Good knowledge of Docker & Shell scripting
- Experience in DevOps is an added advantage.
Personality fit
Looking to hire a Backend developer, who wakes up every day with the zeal of learning something new - a mind that is always curious. Not only this, he should be proud to have a good experience on algorithms and understand his technology at the atomic level.
Preliminary requirements for the role
- Should understand the architecture of Node Js language, and must have had at least 1 year of solid experience in writing robust code in this language.
- Should be well versed with basic algorithms on ( array, Linked list, stack, queue)- Yes, we do ask questions associated with time and space complexity for the above-mentioned algorithms
- Thorough understanding of MySQL, in that, creating all types of joins ( inner, outer, left, and right) on multiple tables, views, and triggers are a piece of cake for you.
- Further, you should have a decent understanding of database designs so that you can make quick decisions about normalization, inclusion/exclusion of foreign keys, etc
- Should have a decent understanding of code repository tool such as GitHub
- Should be well versed with the basics of AWS ( understanding of cloud architecture would be a plus)
- Should be aware of the commonly used encryption techniques such as JWT, API encryption, Token management, etc
- Exposure to working in E-commerce related applications as well as in a startup environment would be an add on.

As a Senior Software Engineer, you will work closely with the Tech/Team Lead, and the rest of the engineering team to build and scale a data-driven platform.
This role will act as a great springboard to accelerate career growth & transition into a Lead level role.
Your primary focus will be the development of server-side logic, building new services and APIs, developing UI components, supporting the maintenance of current APIs, reviewing work, and improving the performance and reliability of our systems as we rapidly scale our product and organization
- An effective Senior Software Engineer will be a self-motivated learner; a highly creative engineer having obsessive attention towards detail and thoroughness.
- You’ve been building web applications professionally for 4+ years
- You’re proficient in NodeJS, TypeScript, MySQL, and MongoDB
- You possess strong OOP and design pattern knowledge
- Familiar with modern engineering practices: Code Reviews, Continuous Deployment, Automated Testing, etc
- You write understandable, testable code with an eye towards maintainability and experience with TDD (Test Driven Development)
- You’ve got the ability to build RESTful APIs
- Explaining complex technical concepts to designers, support team, and fellow engineers is not a problem for you
- Well versed with the fundamentals of computer science and distributed systems
- FrontEnd experience; (Good to have) Angular
- Startup experience, preferably a tech startup
- Open Source contributor
- You have experience with other programming languages -- e.g. Python, Ruby, PHP, Go, C, etc.
- Passionate about/experienced with open source and developer tools
- You have a bachelor's degree in Computer Science, Engineering or related field, or equivalent training, fellowship, or work experience







