
About OpexAI
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We at opexAI strive to make business strategies and provide effective solutions to your complex business problems using AI, machine learning and cognitive computing approaches. With a 40+ years experience in analytics and a workforce of highly skilled and certified consultants, we provide a realistic approach to help you chart an optimal path to success.
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Job Title: Full Stack Developer (Node.js + React.js)
📍 Location: Gurgaon (On-site)
🕒 Experience: 5+ Years
🕒 Working Days: 5 Days(Mon-fri)
Job Summary:
We are hiring a passionate and experienced Full Stack Developer proficient in Node.js and React.js for our client. The ideal candidate should have solid experience in designing scalable systems, writing optimized code, implementing role-based access control, handling task prioritization, and building robust web applications.
Key Responsibilities:
- Design scalable user management systems with role-based access and authentication.
- Develop backend services and REST APIs using Node.js.
- Build dynamic and optimized front-end applications using React.js and Redux.
- Handle async operations, task queues, and implement retry and prioritization logic.
- Optimize React components for performance using hooks and memoization.
- Ensure secure and scalable system design with proper error handling and authorization flows.
- Apply JavaScript concepts like closures, event loop, and async patterns in real-world scenarios.
- Collaborate with DevOps for basic CI/CD and deployment processes.
Mandatory Technical Skills:
- Frontend: React.js, Redux, JavaScript (ES6+)
- Backend: Node.js, Express.js
- Authentication & Authorization: JWT, OAuth2, Role-Based Access Control (RBAC)
- Task Management: Async/Await, Promises, Retry Mechanisms
- Database: MongoDB or PostgreSQL
- Version Control: Git
Soft Skills:
- Strong problem-solving and system design skills
- Ability to work independently and in a collaborative team
- Clear communication of technical ideas
- Ownership of tasks and components end-to-end
Focus Areas:
- System Design (User Management, Fault Tolerance, Load Distribution)
- JavaScript Core Concepts (Closures, Scope, Event Loop)
- React Optimization & Hooks
- Node.js Architecture & Async Programming
- Task Prioritization and Retry Logic
Job Description:
As a Backend Developer, you will:
- Implement server-side logic to ensure high performance and responsiveness to requests from the front-end.
- Integrate machine learning models for fraud detection, enhancing the security and reliability of our applications.
- Manage database operations, ensuring the integrity, security, and efficiency of data storage and retrieval.
- Collaborate with cross-functional teams to develop and maintain scalable, robust, and secure applications.
Responsibilities:
- Development of all server-side logic, definition, and maintenance of the central database.
- Ensuring high performance and responsiveness to front-end requests.
- Integrating data storage solutions, including databases, key-value stores, blob stores, etc.
- Implementing security and data protection measures.
- Integrating machine learning models for advanced data processing and analysis.
Key Performance Indicators (KPI) For Role:
- Quality and efficiency of backend systems developed.
- Effectiveness in integrating and deploying machine learning models.
- Database performance and security measures.
- Positive feedback from team members and stakeholders.
- Adherence to coding standards and best practices in backend development.
Prior Experience Required:
- Minimum 3+ years of backend development experience.
- Proficient in Node.js or Python (especially Django and Flask frameworks), or/and Go.
- Strong database management skills with both SQL and NoSQL databases.
- Experience in integrating and deploying machine learning models for real-world applications, specifically for fraud detection is highly desirable.
- Familiarity with RESTful API development and microservices architecture.
- Good understanding of asynchronous programming and its workarounds.
- Experience with cloud services (AWS, Azure, GCP) and serverless architectures.
Location:
Hyderabad
Collaboration:
The role involves close collaboration with frontend developers, data scientists, and project managers to ensure the seamless integration of backend services with front-end applications and data analytics models.
Salary:
Competitive, based on experience and market standards.
Education:
- Bachelor's degree in Computer Science, Information Technology, or a related field.
Language Skills:
- Strong command of Business English, both verbal and written, is required.
Other Skills Required:
- Strong analytical and problem-solving skills.
- Proficient understanding of code versioning tools, such as Git.
- Ability to design and implement low-latency, high-availability, and performant applications.
- Knowledge of security compliance and integrated security protocols.
- Familiarity with continuous integration and continuous deployment (CI/CD) pipelines.
- Experience with containerization technologies (Docker, Kubernetes) is a plus.
Other Requirements:
- Proven ability to work in a fast-paced, agile development environment.
- Demonstrated ability to manage multiple projects simultaneously and meet deadlines.
- A portfolio showcasing successful backend projects.
At BigThinkCode, our technology solves complex problems. We are looking for full-stack engineer to join our Microsoft capability teams at Chennai.
Our ideal candidate will have expert knowledge of software development processes, programming and problem-solving skills. This is an opportunity to join a growing team and make a substantial impact at BigThinkCode.
Please see below our job description, if interested apply / reply by sharing your profile to discuss.
Company: BigThinkCode Technologies
URL: https://www.bigthinkcode.com/
Work location: Chennai (work from office)
Experience: 3 – 4 years
Joining Time: Immediate-3 weeks
Programming Skills Required:
- Proficiency in C#, .NET Core, MVC
- Familiar with Data Structures & Algorithms, Object Oriented Programming basics.
- Hands on Problem Solving and Debugging skills.
Framework Required:
- EF Core
- Experience in OOJS, JavaScript, HTML, CSS, and at least one modern frontend framework like React/ Angular/ Vue.
Deployment And Devops Basics Required:
- Cloud (AWS), Docker
- Good to Have: Azure DevOps
Database Required:
- Relational (SQL Server), NoSQL, ORMs
Benefits
- Medical cover for employee and eligible dependents.
- Tax beneficial salary structure.
- Comprehensive leave policy
- Competency development training programs.
and Rails framework along with PostgreSQL database. Someone who is passionate
about coding and loves to work in an ongoing challenging environment. You will be part
of a talented software team. You have to consistently deliver in a fast paced
environment and should be more than willing to build software that people love to use.
Key Responsibilities
The individual role that you’ll play in our team:
● Developing large multi-tenant applications in Rails.
● Understanding Rails best practices and religiously introducing those to our
codebase.
● Knowledge on how to do effective Refactoring.
● Ability to write unit tests and following those practices religiously.
● Working closely with the Product managers and UX team.
● Helping QAs to write automated integration tests.
● Staying up-to-date with current and future Backend technologies and
architectures.
Read the ‘Skills and Experience’ section, it is not the usual yada yada, you’ll be
asked specific questions on these.
Skills and Experience
● Ruby on Rails architecture best practices
● Knowledge on the latest versions on ROR
● Strong OOP knowledge in Ruby.
● Asynchronous Networking in Ruby
● Designing RESTFul HTTP APIs using JSON-Schema or JSON API (jsonapi.org).
● Ability to architect and develop API only backend
● Experience in using ActiveRecordSerializer
● Understanding O-Auth2 or JWT (Json Web Token) authentication mechanisms.
● How to use RSpec
● Rails Security Best Practices
● PostgreSQL and Rails.
● SQL concepts like Joins, Relationships etc.
● Understanding DB Partition strategies.
● Knowledge about refactoring ActiveRecord Models (read this - “7 Patterns to
Refactor Fat ActiveRecord Models”).
● Understanding scaling strategies for a high-traffic Rails applications (2 million+
requests a day).
● Background Job processing using Redis and Sidekiq
● Experience in using Amazon Web Services (AWS) tools.
● Writing automated Deployment Scripts using Capistrano, Ansible etc.
● Sending emails in Rails
● Knowledge in Linux and Git is mandatory
Immediate Openings for Dot Net Developer
Experience: 2 - 4years
Job Profile :-
- Good knowledge of .Net concepts & MVC
- Strong programming and troubleshooting skills using C#, ASP.Net, and MS SQL 2012/2019
- Good experience of working on JavaScript and jQuery
- Good understanding of Web API concepts
Job Description :
- As a part of the technology team, member is expected to perform end-to-end development/maintenance of Microsoft .Net based applications.
- Member will be engaged in coding, unit testing, and build readiness activities related to assigned tasks.
- Member is expected to adhere to defined coding standards and guidelines. Also, the member will have to work in collaboration with other team members for success of the assigned projects.
Qualification:- B.tech / BCA/MCA
This includes working on:
a) The main Django application, a large, modern, Django app built using Python 3.8 and the latest Python and Django libraries;
b) The API, built using Django Rest Framework (DRF) that is used both by our web-app and client libraries to build and run data analyses;
c) Backend code that integrates our web server with the rest of our cloud architecture, including our PaaS, data science code, general integrations such as payments, devops code, and more.
Ideally, you should have experience working on Django codebases which serve both server-side rendered pages and APIs via DRF. Frontend/full-stack knowledge is a an advantage but not essential. Familiarity with modern development practices, such as CI/CD, testing, DevOps, Docker, Linux and git would be a big plus. You must have very strong familiarity with Python development, and be excited to pick up the new technologies and skills - for instance we use Python type-hints across our codebase extensively.
You should like the idea of releasing to real customers regularly, and prioritise getting a great product into users’ hands for feedback and iteration. You will have extensive scope to build and architect the backend, and to help grow the team in the future.
Qualification -
a. Minimum Bachelor's Degree
b. Minimum 3 yr experience
c. Basic English Proficiency
d. International Clients
Location: Jaipur
Interview will be online on Skype/Zoom.








