
Technical Architect, Nodejs, , Restful APIs, Python, NodeJS, HTML5, CSS3, jQuery, Bootstrap, JavaScript, AJAX, Postman, REST API, Express

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As a Senior Backend & Infrastructure Engineer, you will take ownership of backend systems and cloud infrastructure. You’ll work closely with our CTO and cross-functional teams (hardware, AI, frontend) to design scalable, fault- tolerant architectures and ensure reliable deployment pipelines.
- What You’ll Do :
- Backend Development: Maintain and evolve our Node.js (TypeScript) and Python backend services with a focus on performance and scalability.
- Cloud Infrastructure: Manage our infrastructure on GCP and Firebase (Auth, Firestore, Storage, Functions, AppEngine, PubSub, Cloud Tasks).
- Database Management: Handle Firestore and other NoSQL DBs. Lead database schema design and migration strategies.
- Pipelines & Automation: Build robust real-time and batch data pipelines. Automate CI/CD and testing for backend and frontend services.
- Monitoring & Uptime: Deploy tools for observability (logging, alerts, debugging). Ensure 99.9% uptime of critical services.
- Dev Environments: Set up and manage developer and staging environments across teams.
- Quality & Security: Drive code reviews, implement backend best practices, and enforce security standards.
- Collaboration: Partner with other engineers (AI, frontend, hardware) to integrate backend capabilities seamlessly into our global system.
Must-Haves :
- 5+ years of experience in backend development and cloud infrastructure.
- Strong expertise in Node.js (TypeScript) and/or Python.
- Advanced skills in NoSQL databases (Firestore, MongoDB, DynamoDB...).
- Deep understanding of cloud platforms, preferably GCP and Firebase.
- Hands-on experience with CI/CD, DevOps tools, and automation.
- Solid knowledge of distributed systems and performance tuning.
- Experience setting up and managing development & staging environments.
• Proficiency in English and remote communication.
Good to have :
- Event-driven architecture experience (e.g., Pub/Sub, MQTT).
- Familiarity with observability tools (Prometheus, Grafana, Google Monitoring).
- Previous work on large-scale SaaS products.
- Knowledge of telecommunication protocols (MQTT, WebSockets, SNMP).
- Experience with edge computing on Nvidia Jetson devices.
What We Offer :
- Competitive salary for the Indian market (depending on experience).
- Remote-first culture with async-friendly communication.
- Autonomy and responsibility from day one.
- A modern stack and a fast-moving team working on cutting-edge AI and cloud infrastructure.
- A mission-driven company tackling real-world environmental challenges.
� � What You’ll Do
• Build and scale backend services using Java & Spring Boot
• Work on API integrations (REST, SOAP), caching & rate limiting
• Contribute across the full SDLC – design, development, testing & deployment
• Solve problems around performance, scalability & reliability
� � What We’re Looking For
• Strong knowledge of Data Structures & Algorithms
• Experience with Java, Spring Boot, REST/SOAP
• Hands-on with system & solution design
• Database experience: MongoDB / PostgreSQL / MySQL / Oracle
• Good debugging skills & unit testing
• Familiarity with Git and AI coding assistants (Copilot, Claude, etc.)
We are looking for a highly capable Node.js/ExpressJS developer to optimize our web-based application performance. You will be collaborating with our front-end application developers, designing back-end components, and integrating data storage and protection solutions.
To ensure success as a Node.js developer, you should possess extensive knowledge of Node.js/ExpressJS based services and experience in a similar role. An accomplished Node.js developer will be someone whose expertise results in the stable, fast, and secure exchange of data between servers and end-users.
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.
Qualification:
- Bachelor’s degree in computer science, information science, or similar.
- At least three years’ experience as a Node.js and ExpressJS 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.
Stealth Fintech startup looking for Software Engineer with 2+ year of experience.
We are looking to hire few engineers for this position ASAP.
Well funded !
Permanent Remote Position !
Competitive Salary !
You will be a part of the founding engeering team. We are working cutting edge technology stack such as Cassandra, Terraform, Kubernetes, Redis, MongoDB, InfluxDB, Graphana, GoLang, AWS.
You will get the opportunity to work on a massive scale project, crawling 100+ Million pages per day, and very complex problems which will help you grow as an engineer.
Requirements:
- Past work experience with crawler / scraper is a MUST
- Self starter mentality who can pick up new skills & can work independently
- Experience with programming languages like Java, C#, Go, Python, PHP
- Understanding of concepts like HTTP, Sessions / Cookies, IP rotation
- Expereince with AWS or Google Cloud
- Familiar with multithreading architecture
● Experience in design, development, and deployment of the
application.
● Knowledge of Restful Web-Services, JSON, HTTP, Networking
protocols
● Knowledge of MVC architecture.
● Mandatory Tech Skills: PHP, NodeJS, JavaScript, SQL, NoSQL,
GIT.
● Good to Have: Laravel, Express, AWS
● Basic understanding of HTML, CSS
The B2B manufacturing industry has a lack of digitisation globally. NowPurchase is building layers of technology to help improve the productivity and profits of the manufacturer. For this we are building the OS (Operating System) that will seamlessly connect factory equipment such as furnaces and spectrometers to our software systems that provide real time optimisations.
The end-game is to use this interconnected system to do great production planning and autonomous procurement of their raw materials. The Heart of NowPurchase will be a marketplace consisting of these smart factories and raw material suppliers.
Here a video that explains our product journey:
https://www.loom.com/share/ccd0ed9e7bc349d7bba851d762253c21">https://www.loom.com/share/ccd0ed9e7bc349d7bba851d762253c21
This is fully a remote role, but the employer needs to fly down to the office in Kolkata for 5–6 days every month. Plane tickets and accommodation will be reimbursed by the company.
Role Description
NowPurchase is looking to add an immensely talented Senior Backend Engineer that will help us invent, design, refine and deliver products that will meet the above vision.
- Expect to build a lot of services and APIs in the cloud and stand-alone IoT devices to serve both the browser as well as native IoT enabled terminals that will be placed at the manufacturers' premises.
- Expect designing algorithms that model the metallurgy of the manufacturing processes as well as using tools such as linear programming, machine learning etc.
- You need to lead the backend team to make sure they are delivering high quality code and is constantly inspired to experiment with tools to push out MVPs.
What are the expectations from this role?
- Deliver high quality modular code deployed to serve web, mobile and native IoT enabled terminals that leverage REST-based services and real time sockets. This would include algorithms for real time optimizations that are critical for the manufacturing process.
- You are empowered to work directly with leadership and the product team to make decisions about your code and future of the product.
- Have a strong emphasis on shipping features quickly without sacrificing code quality. Be ready to build a lot of MVPs that will go through iteration or be completely scrapped depending on the outcome at the customer end.
- Own your Agile projects and lead the team from software design to implementation and deployment. Maintain sprints, delivery timelines and contribute to better managing the engineering team.
- Collaborate on the end to end design and implementation of the platform, including data modeling, systems architecture, data security, access controls, architecture, user experience, deployment, automation, and monitoring.
- Maintain a high level of data integrity, quality and security checks.
- Develop data pipelines and RESTful services that are distributed, robust and highly performant.
- Build a culture of simplicity and pragmatism, which is reflected in your elegant code that other developers emulate and you ensure through thorough code reviews and processes.
Qualifications and Experience
- 4+ years of demonstrated software engineering experience in an agile environment designing, architecting and implementing robust scalable systems preferably for modern SaaS application
- 1+ years of technical leadership experience
- Experience with modern server-side programming languages such as Python, Scala, Go. Experience with web frameworks such as Django Rest Framework, Flask.
- Experience with architecting asynchronous services with design patters leveraging PostgreSQL, MongoDB, Redis, Celery for storage and multi-tenant servers over AWS Elastic BeanStalk.
Compensation & Benefits
- **Cash Compensation:** As per industry standards & pedigree of candidate
- **ESOPs:** 10% of NowPurchase is dedicated to current & future team members. Your package would entail some ESOPs so that you own a part of the company and grow along with it.
- **Medical Insurance:** Benefits of group insurance of 3 lakhs for family including parents, spouse, children
- **Generous leave structure and WFHs** including Marriage, Maternity & Paternity leaves
- **Complete Relocation Expenses:** We are building a unicorn out of the city of Joy (Kolkata). We will pay for everything you spend to relocate here.
**Possible Growth path**
Senior Backend End Engineer > Engineering Manager > VP of Engineering
**Tech Stack**
- React/Redux
- Python/Django/Celery
- Git, AWS, ELB (Elastic Beanstalk), Netlify
- PostgreSQL/Redis/S3
## **Hiring Process**
1. Screening of applicants & initial telephonic call with Manager -HR
2. F2F/Video Interview with Engineering Manager and Cofounder CTO
3. Take home written assessment
4. F2F/Video Interview with Cofounder CEO
5. Email communication on final feedback
The end to end process shall take less than 10 days. We pride ourselves on being transparent & moving fast.
*Candidates who accept an offer may join within 1 hour, 1 week or up to 45days of signing - though, we have a preference for as short a gap period between signing and joining since we're at the most exciting part of our journey - laying the foundation for the NowPurchase platform!*
Responsibilities
1. Collaborate with teammates to define, design, and shape new features.
2. Design and develop backend API microservices using Node.js.
3. Design and develop applications in an AWS and GCP environment.
4. Design and implement low-latency, high-availability, and performant applications.
5. Write reusable, testable, and efficient code.
6. Troubleshoot, debug, and upgrade the software.
Requirements
1. Solid experience in Node.js.
2. Good experience using frameworks such as Express.JS or Restify.
3. Willing to learn HapiJS.
4. Hands-on experience with JavaScript Development.
5. Able to work independently and carry out a task to achieve the design goal with minimal supervision.
6. Good programming skills and communications.
In this role, you should be able to write functional code with a sharp eye for spotting defects. You should be a team player and an excellent communicator. If you are also passionate about the .NET framework and software design/architecture, we- d like to meet you.
Your goal will be to work with internal teams to design, develop and maintain software.
Responsibilities and Duties :
- Writing clean, scalable code using .NET programming languages.
- Build high-quality scalable and predictable web applications on the .NET Technology stack and maintain internal and external facing web applications.
- Creating and integrating services and APIs using Web API 2 for various products and applications.
- Working on system architecture and databasing in MongoDB, MySQL, and NoSQL.
- Make regular modifications to existing software for error correction, adaptation to new hardware, and improving overall function and performance
- Evaluate new code for reliable architecture, stability, reusability, performance, automation, security, and metrics
- Using JSON to store and transport data.
- Working with other team members and the team lead using Project Management Tools and Version Source Control to create industry-leading technological products.
Skills required:
- 1 - 3 years of experience in MongoDB.
- Knowledge about AWS Cloud is an added advantage.
- Knowledge of .NET development and lifecycle methods in C# Language.
- Experience in making Web API 2 including routes, class components, async methods, parallel programming, authentication, and authorization, etc.
- Experience and hands-on knowledge of data management methods with MongoDB, MySQL, or NoSQL, etc.
- Should have experience and understanding of using JSON.
- Familiarity with working with .NET Framework, JavaScript, HTML. Knowledge of .NET Core is preferred.
- Knowledge and experience working with AWS Cloud and cloud computing techniques is an added advantage, but not a requirement.
- Having a BSc Degree in Computer Science is optional but should have some educational knowledge of computer science.
A great Application Developer has excellent knowledge of Javascript.
They must be familiar with a variety of operating systems and platforms. The ideal candidate will also have an analytical mindset and a keen eye for detail.
The goal is to write “clean” and flawless code to produce fully functional software applications according to requirements.
Responsibilities
Understand requirements and how they translate in application features
Collaborate with a team of IT professionals to set specifications for new applications
Design creative prototypes according to specifications
Write high quality source code to program complete applications within deadlines
Perform unit and integration testing before launch
Conduct functional and non-functional testing
Troubleshoot and debug applications
Evaluate existing applications to reprogram, update and add new features
Requirements
Proven experience as application developer
Experience in designing and building applications
Ability to program in NodeJS and AngularJS
In-depth knowledge of programming for diverse operating systems and platforms using development tools
Excellent understanding of software design and programming principles.
A team player with excellent communication skills
Analytical thinking and problem-solving capability
Great attention to detail and time-management skills






