Full Stack Developer – AI Agent Platform (Express AI)

We are looking for a skilled Full Stack .NET Developer with strong expertise in .NET Core, Web API, Blazor, and WPF, along with hands-on experience in device and hardware integration. The ideal candidate will work on web and desktop applications that integrate with peripherals such as cash acceptors, payment devices, printers, and other kiosk hardware, delivering secure, high-performance, and reliable solutions.

Key Responsibilities

• Design, develop, test, and maintain applications using C#, .NET Core, and ASP.NET Core Web API
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• Develop modern web applications using Blazor (Server and/or WebAssembly)
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• Build and maintain WPF desktop applications using MVVM architecture
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• Design, develop, and consume RESTful APIs for web, desktop, and device-based applications
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• Integrate and manage hardware devices such as cash acceptors, payment terminals, printers, scanners, and other peripherals
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• Work with device SDKs, drivers, COM/USB/Serial (RS232) communication, and third-party APIs
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• Handle device error states, retries, logging, and recovery mechanisms
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• Develop and optimize database objects using MS SQL Server
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• Ensure application performance, security, and scalability, especially in hardware-dependent environments
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• Debug, troubleshoot, and resolve application and device-related issues
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• Collaborate with cross-functional teams to translate business and hardware requirements into technical solutions
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• Participate in code reviews and follow best coding standards and practices
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Technical Must-Have Skills

• Strong proficiency in C# and .NET Core
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• Hands-on experience with ASP.NET Core Web API
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• Strong experience with Blazor (Server and/or WebAssembly)
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• Experience developing WPF desktop applications
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• Solid understanding of MVVM and MVC architecture
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• Experience with device/hardware integration, including:
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• Cash acceptors / bill validators
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• Payment devices (POS, card readers, UPI, NFC)
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• Printers (thermal, receipt, barcode)
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• Knowledge of Serial/USB/TCP-IP communication protocols
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• Strong knowledge of MS SQL Server
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• Experience with RESTful API design and integration
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• Familiarity with Git or other version control systems
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Good-to-Have Skills

• Experience with Entity Framework / EF Core
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• Understanding of Microservices architecture
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• Experience working on kiosk-based or embedded systems
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Soft Skills

• Strong problem-solving and analytical skills
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• Good communication and teamwork abilities
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• Ability to work independently with minimal supervision
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• Attention to detail and commitment to quality
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Educational Qualification

• Bachelor’s degree in Computer Science, Engineering, or a related technical field
• (Equivalent hands-on experience in .NET Core, Blazor, WPF, Web API, and device integration will also be considered)

Full stack engineer 

Purpose 

All kids have extraordinary talent & creativity, and our mission in the world is to help nurture it. We truly believe that education needs to develop the whole being, and exploration of broad interests is key for originality. 

We are working hard to be the world's most loved extra-curricular platform & build the future of passion. We are here to do the best work of our lives, and together, we hope you are too. Come & help shape the future of inspiration & passion. As an early team member, you get to shape the direction of our products, company culture, hiring & product engineering practices. 

Team 

We are a team that is maniacally customer obsessed & building products that consumers love. 

The plumber in chief was recently CPO & CMO @ Cleartrip helping build one of the most loved consumer companies in the region. He was also instrumental in taking Cleartrip global 8 countries) & create global high quality products in an increasingly flat world. 

We want to recreate the magic, and build the same customer obsession & product culture here. 

Full stack engineer 

About the role 

Engineer new products and features, improve existing products and features. Help improve performance and reliability, or polish existing features. What are we looking for? 

3+ years working as a backend or full stack developer. 

Bachelor/Masters of engineering.

Better - Full stack engineer 1 

You're proficient with any part of our technology stack: React/Swift, TypeScript, Node.js, and Postgres. 

We are location agnostic, but in the same time zone India). We have a small garden office @ Jayanagar, Bangalore (home to some of the best dosas in India) to jam together on anything that requires space. 

You are not fixated about any one programming language & can learn new tech as needed. 

You are somebody who shares the same ethos. 

Bonus 

You have expertise in video or audio engineering skills. 

You contribute to open source projects. 

You've an interest in education & kids. 

You have interests outside of technology, such as in art, music or any performing art. 

What is our interview process? 

An initial 30 min call to understand each other at a high level. 

Work on a case study or assignment over the period of 2 weeks to ensure a good match. We care about effort & quality, and are happy to compensate fairly for the work put in) 

We’re seeking a talented developer to help build our platform from the ground up. As a critical member of a dynamic and highly-motivated team, you will take a critical developers role, and will be responsible for designing & coding new functionality from scratch.

Looking for folks with a hacker mindset

• Write “clean” and well-designed & scalable code
• Maniacal about creating flawless & defect-free delivery
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Maintain a positive and healthy work environment within the team and have fun while doing it
• Contribute in all phases of the development lifecycle right from requirements through till deployment

Xfinito is building a portfolio of  new product innovation, product contribution and infrastructure goals while providing individuals and teams the freedom to emphasize specific types of work.

Our work focuses on real –world problems that span the breadth of biomedical engineering, embedded systems, computer science, such as machine and deep learning, data mining, natural language processing, hardware and software performance analysis and much more.

Job Role: FULL STACK DEVELOPER-AWS

Roles And Responsibilities:

• Write well designed, testable, efficient code by using best software development practices.
• Work with agile teams as they perform feature level design, development, testing, performance analysis and document to ensure that software meets business needs
• Contribute to software architecture and design
• Develop the required technical pieces/ end-to-end solutions for multi layered applications on a variety of technology stacks
• Conduct code review to ensure code following the code best practices guidelines
• Support for deployment and maintenance applications
• Ability to lead a module development and take it to completion.

REQUIREMENTS:

• Knowledge of multiple front –end languages and libraries (e.g HTML/CSS, JavaScript, XML, jQuery)
• Familiarity with databases (e.g MySQL, MongoDB), web servers (e.g Apache) and UI/UX design and with common stacks
• Excellent communication, teamwork and organizational skills.
• Knowledge in OOP, design patterns, AWS containers, microservices, serverless implementation

EXPERIENCE:

We as a team are looking for freshers or young professionals with (0-4 years of experience) passion and eagerness to challenge themselves with complex technical projects and provide iterative solutions that provide value each step of the way.