Fullstack Developer

We are seeking a smart, analytical Senior Full-Stack Web Applications Developer who thrives in a fast-paced environment and is eager to keep pace with rapidly evolving technologies. The ideal 

candidate embraces AI-assisted development as a core part of their workflow. 

What You'll Do 

● Design, build, and maintain scalable web applications using Python, PHP/Laravel, and React.js/Next.js 

● Develop and integrate RESTful APIs using Express.js and third-party services. 

● Architect and optimize relational (MySQL/PostgreSQL) and NoSQL (MongoDB) databases. 

● Build and customize WordPress themes, plugins, and headless CMS solutions. 

● Leverage AI coding tools (Claude, Codex, GitHub Copilot) to accelerate development and raise code quality. 

● Lead code reviews, enforce coding standards, and contribute to technical documentation. 

● Collaborate with DevOps on CI/CD pipelines, Docker environments, and deployments. 

● Mentor mid-level and junior developers and provide architectural guidance. 

What We're Looking For 

● 5+ years of professional web development experience. 

● Strong analytical mindset, you break down complex problems clearly and systematically. 

● Proficiency in Python (Django / Flask / FastAPI) and PHP (Laravel) 

● Solid front-end skills: React.js, Next.js, HTML5, CSS3, Tailwind CSS 

● Back-end API development with Node.js, Express.js, FastAPI, and Laravel. 

● Deep experience with SQL databases (MySQL, PostgreSQL), query optimization, indexing, migrations. 

● Experience with MongoDB, schema design, aggregation pipelines, and indexing. 

● WordPress development: custom themes, plugins, WooCommerce, REST API. 

● Genuine curiosity and a growth mindset, you actively follow and adapt to emerging tech. 

● Familiarity with Git, Docker, and Linux environments. 

● Understanding of web security best practices. (OWASP, CSRF, XSS, SQL injection) 

Nice to Have 

● TypeScript, GraphQL. 

● Any real-world experience with Golang .

● Cloud platforms. (AWS, GCP, or Azure) 

● Redis, Celery, or queue-based architectures. 

● Prior experience leading a small development team. 

What We Offer 

● Competitive salary based on experience. 

● Modern tech stack. 

● Collaborative, low-ego engineering team. 

● Opportunity to shape architecture decisions from day one. 

Employment Type: Full-time, Permanent Experience Level: Senior (5+ years) 

Job Title: Senior .NET Developer

Location: Kolkata

Job Type: Full-time

Experience: 8-15 years

Job Description:

We are seeking a highly skilled Senior .NET Developer with 8 -15 years of experience to join our team. The ideal candidate will have a strong command of .NET development and excellent communication skills to effectively collaborate with cross-functional teams and stakeholders.

Responsibilities:

• Lead the design, development, testing, and deployment of high-quality .NET applications.
• Mentor junior developers and provide technical guidance and support.
• Collaborate with project managers, business analysts, and stakeholders to gather requirements, define project scope, and contribute to system architectural design and planning discussions.
• Communicate effectively with team members, stakeholders, and clients to understand project requirements, provide updates on project progress, and participate in Code Reviews with Peers/Technical Lead.
• Stay updated with the latest technologies, trends, and developments in .NET development and implement best practices, coding standards, and design patterns to ensure robust and scalable solutions.
• Troubleshoot and debug issues to maintain the stability and performance of existing applications, identify issues, conduct root cause analysis, and recommend/implement solutions.
• Document technical specifications, system architecture, and development processes, and develop relevant documentation around the solutions.
• Estimate and develop scalable solutions using .Net technologies in a highly collaborative agile environment with strong experience in C#, ASP.net Core, Web API, Develop SP, query, and table schema in SQL Server, and perform unit, integration and system testing to ensure quality release of the product.
• Contribute to system architectural design and planning discussions.
• Take initiative and ownership to drive development projects and invest in self-development.
• 4-6 years of experience designing and developing n-tier Web applications using .Net Framework, .Net Core, ASP.Net, WCF and C#, MVC 4/5 Web Development, RESTful API Services, Web API and JSON.
• Exposure to Agile Scrum and associated framework, User Stories/product backlog, and TFS/JIRA Usage.
• Knowledge of scripting frameworks like ReactJS, and experience with source control like Git or Bitbucket is preferred.
• Proven experience with AJAX, jQuery, JavaScript, and CSS, knowledge of SOLID principles, and working experience with design principles including design patterns.
• Good exposure to one or more implementations of CI & CD using Jenkins, and Docker containerization.
• Knowledge of API development with an understanding of HTTP and REST architecture.

Eligible Criteria:

• Excellent verbal and written communication and organizational skills, keen attention to detail, and multi-tasking abilities.

· Bachelor's degree in Computer Science, Engineering, or a related field.

· 5-10 years of professional experience in .NET development.

· Extensive knowledge and experience with C#, ASP.NET, MVC, Web API, and SQL Server.

· Proficiency in Azure cloud & related environments

· Experience working in Agile methodologies and collaborative team environments.

· Excellent problem-solving skills and attention to detail.

· Ability to work independently and as part of a team, with a proactive and positive attitude.

· Familiarity with front-end technologies such as HTML5, CSS3, JavaScript, and frameworks like ReactJS is a plus.

· Certifications in .NET development or related technologies are desirable but not required.

Benefits: Salary as per Market standard, PF, Medical insurance for permanent employees.

Employment Type

Full-time

The ideal candidate should have a strong foundation in computer science and a passion for building high-quality solutions. The role requires hands-on experience in designing, developing, and implementing scalable and high-performance mobile applications (company is looking for an employee to build a chat application from scratch)

Responsibilities:

1. Design, develop, and maintain a mobile application

2. Write clean, scalable, and maintainable code that

adheres to best practices and industry standards

3. Test applications to ensure they meet customer requirements and are free from defects

4. Implement security and data protection measures in applications

5. Troubleshoot and debug software applications

Requirements:

1. Bachelor's degree in Computer Science or a related field

2. Experience in developing applications using Java, and Javascript.

3. Strong understanding of the software development life cycle (SDLC) and Agile methodologies

4. Experience with front-end technologies such as HTML, CSS, and JavaScript

5. Experience with database design and management, particularly with MongoDB

6. Excellent debugging and troubleshooting skills

7. Strong communication and teamwork skills

Hashtag Labs is looking for MERN stack developer who is an expert in MongoDB, Express, React and Node. He/she should be proficient in JavaScript and use HTML, CSS and JavaScript to handle front-end operations and JavaScript with Node.js to handle back-end operations.

Roles and Responsibilities:-

• Ability to translate Wireframes into functional web apps.
• Binding of UI elements to JavaScript object models
• Creating RESTful services with Node.js
• MERN stack developer must have proven experience in front & back-end development
• Work in a cross-functional team to deliver a complete user experience
• React.JS NodeJS developer must know MongoDB, Express, Node.js, & React.
• Create Unit and Integration tests to ensure the quality of code
• Be responsive to change requests and feature requests
• Write code that is cross-platform and cross-device compatible
• MERN full stack developer must have the ability to wear many hats and learn new technologies quickly
• For MERN stack developer job, candidate must have good Knowledge of Node Debugging
• Understanding & proficiency in REST APIs.
• MERN stack developers should know Git Repository and Jira.
• Integration of data storage solutions [RDBMS, NoSQL DB]

Experience: 2+ years

Job Location: Lucknow, Uttar Pradesh

We are building a team whose area of focus will be web GUI development. This will be a horizontal team that will specialize in GUI development and will build GUIs for all our products. Our GUI development platform is a proprietary tool. It has an IDE (Integrated Development Environment) which comes with a rich library of widgets. It allows you to design the web page without having to go into details of the HTML/CSS, by using a drag and drop philosophy. Once a widget is in place on a page, one can define the database interactions of the widgets by defining the underlying table structure and SQL queries. In addition to SQL & database knowledge, the work also involves data manipulation using Java programming. Query performance and Java code performance and optimization will be very essential for work. So we are looking for good programmers with UI + Java + SQL background who are keen to take up GUI development as a specialization.

• Working with the product team to develop new features focused on improving the user experience
• Improving existing features and working on streamlining client implementations through improved tools
• Improving our technical architecture and building out a continuous integration pipeline
• Modernizing our front-end in new frameworks
• Everything else - our team is small and you'll likely be involved in almost every tech-related thing going on
  
  

Requirements

• 1+ years of experience building consumer-facing web apps
• You are interested in the full-stack opportunity and love building a feature from start to finish
• Self-starter with a deep interest in tech - we want someone who will come in with opinions, and shape our engineering practices and decisions for the better
• An eye for design - you'll have an important role in making the product look great
• Believe in our mission and love the idea of working in education to help students succeed
  
  

Technologies you'll work with:

• NodeJS, http://sails.js/">Sails.JS
• http://react.js/">React.js, Redux, Redux-Saga
• Kubernetes, Postgres, ElasticSearch, Redis, RabbitMQ
• Whatever else you decide - we're constantly re-evaluating our stack and tools
• Having prior experience with the technologies is a plus, but not mandatory for skilled candidates.

Benefits

• Remote Option - You can work from any location of your choice
• Reimbursement of Home Office Setup
• Competitive Salary
• Friendly atmosphere
• Flexible paid vacation policy