Senior Software Engineer

MERN Stack Expertise: Strong hands-on experience with MongoDB, Express.js, React.js, and Node.js.

Frontend Skills: Proficiency in React (Hooks, Redux, Context API), JavaScript (ES6+), TypeScript, HTML5, CSS3, Tailwind/Bootstrap.

Backend & APIs: Building scalable microservices, REST/GraphQL APIs, authentication & authorization flows.

Database & Cloud: Expertise in NoSQL (MongoDB) and deployment on AWS/GCP/Azure with CI/CD pipelines.

Fintech/Payments Domain:

• Payment Gateway Integrations (Razorpay, Cashfree, PayU, CCAvenue, BillDesk).
• Banking APIs (UPI, IMPS, NEFT, RTGS, NACH) for Pay-In / Payout solutions.
• Knowledge of reconciliation, settlements, fraud detection, KYC/AML, PCI-DSS compliance.

Gaming Domain Exposure (Preferred):

• In-app purchase systems, wallets, tokens/credits, reward points.
• Real-time payment flows in multiplayer or gaming platforms.

Problem Solving: Ability to design, develop, and deploy independently from Day 1 with minimal supervision.

Role Overview:

We are looking for a detail-oriented and experienced Full Stack Developer to join our growing team in India. This is a remote, full-time opportunity to work on high-impact

projects using modern web technologies. While specific project discovery is underway, we’re looking to onboard developers with a solid foundation across front-end and back-end technologies who are comfortable working in agile environments. You will be collaborating directly with a US-based client and must be available to work the UK shift.

Key Responsibilities:

·        Develop and maintain scalable and performant full-stack web applications

·        Collaborate with UI/UX designers and backend teams to implement responsive, user- friendly interfaces

·        Write unit tests using Jest and ensure code quality and reliability

·        Develop RESTful APIs using Node.js and NestJS framework

·        Utilize Docker Compose for local development and deployment

·        Manage and optimize MySQL databases, including views, stored procedures, and performance tuning

·        Implement access control mechanisms using identity providers like Okta or Auth0

·        Document APIs using tools like SwaggerUI and Postman

·        Participate in sprint planning, code reviews, and team stand-ups via JIRA and Confluence

·        Use Git for version control and manage merge requests and branches effectively

·        Integrate application loggers for monitoring and diagnostics

Must-Have Skills:

·        Proficiency in HTML, CSS, SASS/SCSS

·        Strong hands-on experience with Angular 18 or higher

·        Familiarity with Angular Material or similar UI component libraries

·        Experience with Node.js and NestJS 10+

·        Working knowledge of Docker Compose

·        Strong SQL skills and experience with MySQL

·        Understanding of authentication and authorization best practices with Okta, Auth0, etc.

·        Comfort using Postman, SwaggerUI, Git, and logging tools

·        Familiarity with agile development processes and using JIRA and Confluence

Nice to Have:

·        Experience with form builders like Formsite or FormSort

·        Knowledge of data encryption best practices

·        Prior experience in the public health or POSIT (Public Health Informatics) domain

Qualifications:

·        Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field

·        3–6 years of experience in full-stack development

·        Strong communication skills and the ability to work independently in a remote team environment

Availability to work UK shift hours to ensure overlap with the US-based client

Equal Opportunity Statement:

BigRio is an equal-opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, national origin, sex, sexual orientation, gender identity, age, pregnancy, status as a qualified individual with disability, protected veteran status, or other protected characteristic as outlined by federal, state, or local laws. BigRio makes hiring decisions based solely on qualifications, merit, and business needs at the time. All qualified applicants will receive equal consideration for employment.

Skills Required:

• 4+ years' experience in application development in the following
• Mandatory:        C# ASP.NET, MVC, REST API, T SQL, oops, Client facing skills
• Preferred:         ASP.Net Core, JavaScript or Angular, Azure, VB.NET, WWF, Microservices

Job Description:

• Mandatory:        Extensive hands-on experience in developing web applications using C# ASP.NET and MVC
• Mandatory:       TSQL ability to develop and analyze existing complex flows within Stored Procedures
• Mandatory:        Utilizing REST APIs for development of background processes with an emphasis on security (OIDC/OAUTH) and performance
• Mandatory:        Extensive understanding of Object-Oriented Design and Programming.
• Mandatory:        Ability to talk to international clients and also capable of explaining about the product features as well as support issues (client checks this ability by asking them to explain about their current projects)
• Preferred:           Angular (not AngularJS) or / and JavaScript
• Preferred:           Azure based DevOps and source check into Git and maintaining version control
• Preferred:           Windows Workflow Foundation (workflow activities and business process automation) => tool utilizes VB.Net syntax
• Preferred:           Azure function apps for serverless workloads
• Preferred:           Experience implementing integrations (utilizing SOAP, SFTP, XML, etc.)
• Preferred:           Experience with microservice architectures

Responsibilities

• Enhance and maintain our main web application, ASCLOGS, built on ASP.NET MVC

(.NET Framework 4.8) with features such as authentication, PDF generation via

IronPdf, audit logging with log4net, Twilio SMS integration, and data access through

PetaPoco.

• Support multiple companion projects including:

• CopyForm, an MVC tool that copies form templates between SQL Server

databases using AJAX and PetaPoco data access.

• SQLImportApp, a WinForms importer leveraging ExcelDataReader and

Z.Dapper.Plus for bulk inserts.

• DEAVerification, a WinForms app automating data retrieval via Selenium

WebDriver and storing results with PetaPoco.

• UniversalScrapperAPI, an ASP.NET Web API that scrapes licensing

information using Selenium and logs results with log4net.

• HL7DocAssistantSync, a VB.NET library for HL7 message processing and

PDF generation with PdfSharp.

• ChatGPT Implementation, a .NET 8 Web API example showing how we

integrate with OpenAI's ChatGPT service.

• S3MicroService, a .NET 8 Web API using AWS SDK packages

(AWSSDK.S3, AWSSDK.Extensions.NETCore.Setup) and Entity Framework

Core for storage.

• Maintain PowerShell utilities used for onboarding tasks such as document-to-PDF

conversion and CSV generation.

• Review existing code to improve reliability, enhance testability, and refactor large

code files (for example, BusinessLayer/BusinessLayer.cs is roughly 28k lines).

• Work closely with stakeholders to gather requirements for new features and ensure

compatibility with our SQL Server backend.

• Assist in modernizing legacy components and implementing best practices for

security, error handling, logging, and deployment automation.

Required Skills

• 10+ years of development experience

• Extensive experience with C# and the .NET ecosystem, including both legacy .NET

Framework and modern .NET Core / .NET 8.

• Solid understanding of ASP.NET MVC, Web API, and Windows Forms development.

• Familiarity with PetaPoco, Entity Framework Core, and SQL Server.

• Experience integrating third-party services such as Twilio, OpenAI, Selenium

WebDriver.

• Ability to write and troubleshoot PowerShell scripts for automation tasks.

• Comfortable navigating large codebases and improving code quality through

refactoring, unit testing, and documentation.

• Proficiency with version control (Git) and the Visual Studio toolchain.

Preferred Skills

• Background in healthcare or regulated industries, since many applications manage

sensitive data (e.g., DEA verification, HL7 messaging).

• Knowledge of PDF generation libraries (IronPdf, PdfSharp) and logging frameworks

(log4net).

• Experience with CI/CD pipelines for .NET applications.

• Nice to have Unit Testing frameworks (i.e. NUnit, MS Testing Framework )

Location & Work Environment

This role requires working with Visual Studio on Windows for the .NET Framework solutions

and .NET 8 projects. Experience with IIS or IIS Express is helpful for local development and

testing.

We are looking for a talented full-stack software engineer to join our small and extremely talented product team. We love to build amazing products fast and with a high standard of code and UX, always on the cutting edge of new technologies.

Tasks

• Design and build features end-to-end. You'll be working on the frontend, backend, and anything in-between, whatever it takes to solve problems and delight users.
• Build beautiful and usable UIs with our modern toolset of React (NextJS, ES11, TypeScript) and TailwindCSS.
• Continue developing our distributed backend using Node (NestJS + TypeScript) and Rust. Technologies also include PostgreSQL, Redis, and RabbitMQ.
• Stitch many different services and APIs together, even if you have not worked with them before.
• Build solutions that take scaling and growth into consideration while balancing the time to launch.
• Engineer solutions to solve existing tech debt and write maintainable, sound and safe code.

Requirements

• 3+ years of experience as a Software Engineer, working with Typescript, React and serious interest or even better experience with Rust. However, we care much more about your general engineering skill than your knowledge of a particular language or framework.
• The ability to put yourself in the users' shoes and craft intuitive, high-quality web UI experiences
• A high bar for code quality and robustness for long-term expansion and use
• High personal initiative to learn, improve, and excel
• A Can-Do, entrepreneurial mentality with enjoyment for being a generalist
• DevOps: Experience with CI/CD pipelines, Docker, Kubernetes, and other DevOps tools.
• Experience with distributed systems, scaling applications, and/or microservices.
• Fluent in English (German is a plus)

Plus:

• Hands-on experience with the Rust
• Experience with functional programming
• Previously worked in an early-stage startup and experienced scaling of engineering teams

You will collaborate with a multidisciplinary engineering team to develop various

applications for the Additive Manufacturing process chain.

• You will be required to research and implement advanced algorithms and mathematical

models.

• You will optimize CPU performance and memory usage of applications.

• You will be involved in the design of the software architecture.

• You should be self-motivated and have strategic thinking abilities.

• The working environment and architecture primarily consists of C++ geometry processing

and simulation libraries, coupled with visualization frameworks

Writing and Documenting High-Quality Code for Additive Manufacturing applications

• Developing Algorithms for Performance Improvements

• Bug Fixing and Regression Testing

• Developing Test Cases

• Designing, Developing and Implementing Geometry Processing Libraries

• Leading a Team of Junior Software Engineers and Developers (This ability will be a plus)

• Good Understanding of OOPs Concepts, Design Patterns

• Hands-On Experience in Developing Applications for The Geometry Domain

• Math Proficiency - Linear Algebra, Numerical Analysis, Computational Geometry

• Ability to Work with A Multi-Disciplinary Team of Engineers.

• Technologies (Some combination of these will be suitable)

o Strong C++, C# Skills

o Python

o OpenGL, WPF

o C#.Net, ASP.NET

o JavaScript, React, Node.js

o GPGPU, CUDA

o Full-stack cloud development

o Familiarity with Azure Dev Ops

About Company:

Propelius Technologies is a next generation software development studio focused on developing cutting edge Web and Mobile Applications on JavaScript based technologies like ReactJS, React Native and Node.js. We have domain expertise in SAAS, FinTech, LegalTech and InsuranceTech.

About the Role:

As a Senior Developer, you will be responsible for developing and maintaining high-quality web applications using ReactJS and NodeJS. You will work closely with the development team to design and implement new features, as well as maintain and improve existing ones. You will also be responsible for ensuring the application is performant and scalable.

Roles & Responsibilities:

• Developing and designing front end web architecture
• Building interactive consumer data from multiple systems
• Define code architecture decisions to support high-performance products
• Translate wireframes and PSD Designs into functional web applications
• Work with development teams and managers to ideate software solutions
• Developing well-functioning databases and applications
• Conduct and participate in project planning & scheduling and design discussions
• Test software to ensure efficiency
• Address and improve any technical issues

Skills Required :

• In-depth knowledge of NodeJS, ExpressJS or Restify
• Ability to bind UI elements to JavaScript object models
• Experience creating RESTful services with Node.js
• Proficiency in OOP and database concepts
• Proven experience in front & back-end development
• Ability to create front end applications using HTML5, Angular, LESS/SASS
• Knowledge of modern frameworks and design patterns
• Ability to create Unit and Integration tests to ensure the quality of code
• Strong problem-solving skills
• Good communication skills
• Strong analytical thinking
• Self-motivated
• Strong will and discipline

Perks you receive:

• Competitive Salary - Oh Yes!! This is a must.
• 5 days working - As you want it :)
• Opportunity to work with top professionals
• Platform to learn new technologies and grow yourself - We believe in learning & evolving
• Open Culture - No politics, Views are appreciated always!!
• Monthly Celebrations

Responsibilities

• Strong knowledge of MERN stack (MongoDB, Express JS, React JS, Node JS, HTML5, CSS3, jQuery, Bootstrap, SASS)
• Develop user interfaces for modern rich internet applications with the latest front-end technologies
• Developing features to enhance the user experience.
• Should have excellent in-depth knowledge on Nodejs and MongoDB
• Hands-on experience working with Object-Oriented JavaScript (OOJS), JavaScript libraries and their practical uses in building complex interactive experiences
• Building reusable code for future use
• Writing tested code and its documention

• 1+ years of experience in front end development and backend development is must
• Thorough knowledge of HTML5, CSS3 (LESS/SASS),React, Nodejs and Mongodb
• Solid understanding of JavaScript and the ability to pick up any framework quickly
• Strong Experience in back-end frameworks used to develop dynamic web pages (REST, GraphQL, WebSocket/socket.io)
• Expertise in developing and testing across multiple browsers, platforms, DOM implementations, etc.
• Strong experience in React, React Hooks, Redux, Thunk | Saga, ES6, Typescript, ESLint, Nodejs, GraphQL, Redis, AWS, Git, Github, Docker

Bonus but not mandatory

• UI/UX designs
• AWS
• Git
• CI/CD

Senior Fullstack (MERN) Developer - Tribe

We’re looking for a Full Stack developer who will take a key role on our team. Our Full Stack developer must have knowledge in all stages of software development. You’ll be working alongside other engineers and developers, collaborating on the various layers of the infrastructure for our platform

• Quick Learner and good at problem solving
• 2 - 5 years of experience in developing backend and frontend applications
• Good understanding and strong in data structures and algorithms
• Design overall architecture of application including frontend and backend.
• Maintain quality and ensure responsiveness of applications.
• Developing front end website architecture.
• Developing back-end website applications including designing and developing APIs.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Staying abreast of developments in web applications and programming languages.
• Collaborate with the rest of the engineering team to design and launch new features.
• Maintain code integrity and organization.
• Understanding and implementation of security and data protection.
• Highly experienced with back-end programming languages (Ex: Python, Java, JavaScript etc)
• Proficient experience using (Ex: advanced JavaScript libraries and frameworks such as ReactJS, AngularJS etc.).
• Experience with cloud message APIs and usage of push notifications at large scale.
• Knowledge of code versioning tools such at Git
• Good to have experience in MERN