We are looking for aSenior Full Stack Developerwith strong expertise inJavaScript/TypeScriptand hands-on experience acrossmodern frontend and backend technologies. The ideal candidate should be comfortable building scalable, high-performance web applications and collaborating closely with product, design, and engineering teams.
Key Responsibilities
- Design, develop, and maintainscalable full-stack web applications.
- Build responsive and performantfrontend applications using React.js.
- Develop and maintainbackend services using Node.js and Express.js.
- Design and optimizeSQL and NoSQL databasesto ensure data integrity and performance.
- Build, consume, and documentRESTful APIs(GraphQL exposure is a plus).
- Write clean, maintainable, and testable code following best practices.
- Participate incode reviews, branching strategies, and release processes.
- Collaborate with cross-functional teams to translate requirements into technical solutions.
- Ensure application performance, security, and scalability.
- Contribute to CI/CD pipelines and deployment processes.
Required Technical Skills
- Strong experience withJavaScript and TypeScript.
- Expertise inReact.js, includingHooks, Context API, and state management (Redux / Zustand preferred).
- Solid backend development experience withNode.js and Express.js.
- Hands-on experience with either:
- PostgreSQL(PERN stack)
- MongoDB(MERN stack)
- Strong understanding ofSQL and NoSQL database design principles.
- Experience in building and consumingREST APIs.
- Basic knowledge ofGraphQLis a plus.
- Familiarity withORMs/ODMssuch asSequelize, Prisma, or Mongoose.
- Proficiency withGit, branching strategies, and code review practices.
- Understanding ofDocker,CI/CD pipelines, and cloud platforms (AWS).
Nice to Have
- Experience working withNext.js.
- Exposure tomicroservices architecture.
- Knowledge ofmessage queuessuch asKafka or RabbitMQ.
- Experience building or maintaininghigh-scale or multi-tenant systems.
Soft Skills
- Strong problem-solving and analytical skills.
- Good communication and collaboration abilities.
- Ability to take ownership and work independently.
- Adaptable and eager to learn new technologies.

About Sigma Infosolutions
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About us:
We are not just an AD agency or a creative agency, we are a Communication Company. Founded in 2014, Moshi Moshi is a young, creative, gutsy and committed communication company that wants its clients to always Expect the EXTRA from it. Our primary clientele consists of Startups & Corporates like Ola, Zoomcar, Mercedes Benz, ITC, Aditya Birla Group, TATA Group, MTV, IHCL, Jaquar, Sobha ,Simple Energy, and Godrej amongst others. We have a huge team of creative folks, marketers,learners, developers, coders and a puppy momo, who believe Moshi Moshi is an experience rather than a company.
Job Role - Full Stack Developer
Experience Level - 2 to 3 years
Location - Bangalore
Responsibilities:
● Develop and implement the React / Node Js-based project of the client
● Collaborate with the UX/UI designer to ensure a seamless and user-friendly experience
● Ensure high-quality code and perform required testing to identify and fix any bugs or issues
before signing off.
● Maintain clear and concise documentation of the code and development process
Requirements:
● Proven experience in developing Android and web-based applications using React /Node Js.
● Strong proficiency in JavaScript and familiarity with the React js. framework.
● Strong problem-solving and analytical skills
● Excellent communication and teamwork skills
● Looking for someone who can handle end to end projects.
● Capable of working with Strapi CMS.
Languages Required:
React.JS, Redux, MySQL, Java Script, Node.JS, MySQL, MongoDB AWS server-side & React Native.
Must Have Skills:
- Experience with the .NET framework and .NET Core technologies: C#
- Writing and consuming REST API/Web API in .Net framework, .Net Core, EF Core
- Experience with frontend technology - ReactJS
- Knowledge of Reporting like Xtra Reports or PDF Generation Libraries
- Good knowledge and working experience in Microservice Architecture In Azure Cloud Env.
- Advanced understanding of Azure Web App, Azure Storage Accounts, Azure Databases (PostgreSQL, MS Sql), OAuth2 Authentication (Auth Flows)
- Strong understanding of OOPS Concepts
- Very Good understanding of common cloud patterns, like messaging (consuming + producing messages), scaling, api patterns, (for example: IOSP or SOLID), etc.
- Strong knowledge of Unit Testing Tools
- RDBMS Concepts, MS-SQL Server
- Writing & Optimizing SQL Queries for best performance
- Excellent Aptitude, Attitude and Communication Skills
Good to have Skills:
- Knowledge of HTML, Bootstrap, CSS, and Responsive Design
- Typescript / React and/or Terraform for IaC
- Enterprise service bus technologies, idelly Azure Serivce bus
- Knowledge in Azure hosting services
- Docker
- Entity Framework/LINQ, MVC
- Strong understanding of current design patterns & best practices
- Knowledge of Agile methodology and JIRA
- Knowledge CI/CD pipeline to deploy applications in Azure
- Understand the architecture and design lingoes and work with lead developers
Key Responsibilities:
- Convert design and architecture to code using best practices
- Able to troubleshoot and debug the code, write code with best coding practice and perform unit & Integration testing
- Design and develop software applications
- Work with Scrum Team to prioritize tasks and ensure deadlines are met
- Communicate and actively participate in client call and understand requirements
- Demonstrate expertise in a variety of software concepts (object-oriented design), practices (design patterns), and procedures (troubleshooting defects)
- Use and set-up CI/CD pipeline
Apply
String core PHP Hands-on experience.
Strong Expertise in CodeIgniter Framework.
Good Knowledge of PHP, MySQL, jQuery, Javascript, HTML5, CSS3, JSON
Sound knowledge of database designing and application architecture planning.
Good debugging skills.
A good understanding of asynchronous request handling, partial page updates, and AJAX will be preferred.
Basic UI Designing using Bootstrap and Jquery.
Node Js
Knowledge of Node.js and frameworks available for it, such as Express JS, Strong Loop, etc
Understanding the nature of asynchronous programming and Promises and its quirks and workarounds
Good understanding of server-side templating languages (such as Jade, EJS, etc depending on your technology stack)
Basic understanding of front-end technologies, such as HTML5, CSS3, and Bootstrap
Understanding accessibility and security compliance
User authentication and authorization between multiple systems(Internal or Third-party), servers, and environments
Integration of multiple data sources and databases into one system
Understanding fundamental design principles behind a scalable application
Proficient in code versioning tools, such as Git or TFS
Freeswitch, MYSQL
Good to have knowledge
Redis, Ubuntu, OpenSips, WebRTC
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
Job Description
Design and implementation of low-latency, high-availability, and performant applications
Implementation of security and data protection
Understanding of performance testing and optimization techniques
Requirements
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
Reactjs 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 fullstack 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 developer should know Git Repository and Jira.
Integration of data storage solutions [RDBMS, NoSQL DB]
Job Description
Job Purpose
We work in the latest technology, and our foundations are data structures, algorithms, strong logical reasoning, and mathematics. We are looking for very strong engineers who love coding, optimizing, and making sure their code is the most efficient possible.
You will be involved with hardcore development. If you are an assembler of code or packages from different places to build something, you may not find our team to be the right fit.
You must be someone who can build anything from the ground up. Programming language should not be any barrier for you, as you should be able to pick up any programming language or underlying technology within a week.
Key Areas of Responsibility
Core development. Ready to participate in designing, brainstorming, and development process. You must give sleepless nights to meet deadlines whenever required.
Desired Candidate Profile
Essential Skills
- Reliable, Accountable and Trustworthy
- Ability to understand software requirements based on a wireframe/program specification
- Familiarity with GoLang / PHP / Python / Java / C / C++ / Linux Shell and Scripting / HTML / CSS / JS / Node.js is a plus
- Effective communication skills to ensure smooth coordination of tasks with Team Leader
- Knowledge of MongoDB, MySQL, and PL/SQL is a plus
- Familiarity with ML, TensorFlow, and Keras is a plus
- Knowledge of web servers such as Apache, NGNIX, and the HTTP protocol is plus
- Knowledge of multi-process, threads, memory, and filesystem on Linux is desirable
To consider you for current opening, please make sure to understand the following question and solve it. A simple program in any programing language would do. If you are not able to solve this, then please do not apply.
Write a function foo(x) where foo(foo(x)) = -x (assume x to be an integer, and foo(x) has to be always real), any programming language would do. Before submitting the answers, plz verify that the output of foo(foo(10)) should be -10 and foo(foo(-10)) should be 10.
.
- Leadership skills
- Lead and grow a team of 10+ developers.
- Self-motivated to keep optimizing and deliver best-in-class results.
- Deep thought and attention to detail.
- Strong technical and communication skills
- Well-versed with the latest tech: AWS, Postgres, Devops, Nodejs, Reactjs
You will get a chance to work on exciting projects at our state-of-the-art office, grow along with the company and be fruitfully rewarded for your efforts!
Requirements:
● You can rock with your expertise in fundamental front end languages such as HTML, CSS and JavaScript.
● You can make value additions aided by your familiarity with advanced JavaScript libraries and frameworks such as React.
● You have top notch ability of server side languages such as NodeJS, Web Services, Micro service.
● Database technology such as MySQL also falls in your comfort zone.
● You can enhance our world with your Cloud Experience preferably AWS [EC2, RDS, S3, Lambda] or OCI
● You take pride in your knowledge of code versioning tools such as Git
● Third party integration like payment gateway and any Plugins
● Familiar with third party libraries like D3 Chart, Video and Audio player.
● Development experience with webcam based recording or streaming
● WebRTC protocol with any Media Server
● React with Next.JS framework
● JWT, OAuth, JSON web token, Node mailer
● Good at cron Jobs development and configuration











