Senior BackEnd Engineer

Role Summary 

We have an existing Android-based POS application that needs to be migrated and rebuilt as a Windows desktop application using WPF. You will re-architect the Android app's features, UI flows, and business logic into a full-featured WPF application with SQLite local storage, EF Core, and existing REST API integration. 

Responsibilities 

• Analyze the existing Android POS app and re-architect it as a WPF desktop application. 
• Rebuild all screens and workflows (billing, cart, product catalog, orders, reports) in WPF / XAML following MVVM pattern. 
• Implement local data storage using SQLite + Entity Framework Core (Code First, migrations). 
• Integrate with the existing backend REST APIs (same APIs used by Android app) for product sync, orders, payments, and authentication. 
• Ensure feature parity between Android and Windows versions. 
• Integrate Windows-specific hardware — barcode scanners, receipt printers, cash drawers. 
• Apply Dependency Injection, async/await, and SOLID principles throughout. 

Required Skills 

• WPF, XAML, MVVM, C# (.NET 6/8),
• Entity Framework Core + SQLite 
• REST API consumption (HttpClient, JWT auth, JSON handling) 
• Ability to read and understand Android (Java/Kotlin) code and translate logic to C# 
• Git, Visual Studio 

Good to Have 

• Prior Android-to-Windows or mobile-to-desktop migration experience 
• Payment gateway integration (Razorpay / Stripe / Paytm) 
• PDF / receipt generation (RDLC / FastReport) 
• POS, billing, or retail domain experience 

AI-Assisted Development (Mandatory Mindset) 

We expect the candidate to actively leverage AI tools to accelerate the migration and development process: 

• Use GitHub Copilot / Cursor / Claude to convert Android (Java/Kotlin) logic to C# WPF code efficiently. 
• Use AI tools for boilerplate generation — ViewModels, EF Core models, API service classes, XAML layouts. 
• Leverage AI for code review, refactoring suggestions, and identifying platform-specific differences (Android vs Windows). 
• Use AI-assisted documentation and inline commenting to maintain code clarity during migration. 
• Comfortable evaluating, validating, and refining AI-generated code — not just accepting output blindly. 

Qualification 

• B.E. / B.Tech / MCA in Computer Science
• 2–4 years WPF desktop development experience

Regards,

HR Team,

OnePOS Retail Solutions Private Limited

Key Responsibilities:

● Work closely with product managers, designers, frontend developers, and other

cross-functional teams to ensure the seamless integration and alignment of frontend and

backend technologies, driving cohesive and high-quality product delivery.

● Develop and implement coding standards and best practices for the backend team.

● Document technical specifications and procedures.

● Stay up-to-date with the latest backend technologies, trends, and best practices.

● Collaborate with other departments to identify and address backend-related issues.

● Conduct code reviews and ensure code quality and consistency across the backend team.

● Create technical documentation, ensuring clarity for future development and

maintenance.

Requirements;

● Experience: 4-6 years of hands-on experience in backend development, with a strong

background in product-based companies or startups.

● Education: Bachelor’s degree or above in Computer Science or a related field.

● Programming skills: Proficient in Python and software development principles, with a

focus on clean, maintainable code, and industry best practices. Experienced in unit

testing, AI-driven code reviews, version control with Git, CI/CD pipelines using GitHub

Actions, and integrating New Relic for logging and APM into backend systems.

● Database Development: Proficiency in developing and optimizing backend systems in

both relational and non-relational database environments, such as MySQL and NoSQL

databases.

● GraphQL: Proven experience in developing and managing robust GraphQL APIs,

preferably using Apollo Server. Ability to design type-safe GraphQL schemas and

resolvers, ensuring seamless integration and high performance.

● Cloud Platforms: Familiar with AWS and experienced in Docker containerization and

orchestrating containerized systems.

● System Architecture: Proficient in system design and architecture with experience in

developing multi-tenant platforms, including security implementation, user onboarding,

payment integration, and scalable architecture.

● Linux Systems: Familiarity with Linux systems is mandatory, including deployment and

management.

● Continuous Learning: Stay current with industry trends and emerging technologies to

influence architectural decisions and drive continuous improvement.

Benefits:

● Competitive salary.

● Health insurance.

● Casual dress code.

● Dynamic & Collaboration friendly office.

● Hybrid work schedule.

Industry

• IT Services and IT Consulting

Employment Type

Full-time

Must Have Skills:

1.      Experience with the .NET framework and .NET Core technologies: C#

2.      Writing and consuming REST API/Web API in .Net framework, .Net Core

3.      Must have excellent knowledge in Azure hosting services

4.      Good knowledge of Trouble shooting, Azure Hosting, maintaining and performance tuning

5.      Knowledge of Frontend framework (React), If not then Angular, or Vuejs etc

6.      Excellent Aptitude, Attitude and Communication Skills

7.      Strong understanding of OOPS Concepts

8.      Strong knowledge of Unit Testing

9.      Excellent knowledge and working experience in Microservice Architecture

10.  RDBMS Concepts, MS-SQL Server

11.  Writing & Optimizing SQL Queries for best performance

12.  Able to manage release by mean of CI/CD pipeline to deploy applications in Azure

13.  Well versed of code review and code scanning tools

Good to have Skills:

1.      Knowledge of HTML, Bootstrap, CSS, Responsive Design

2.      Entity Framework/LINQ, MVC

3.      Strong understanding of current design patterns & best practices

4.      Knowledge of Agile methodology and JIRA

5.      Knowledge of Electron is a plus

Key Responsibilities:

1.      Work with Scrum Team to prioritize tasks and ensure deadlines are met

2.      Communicate and actively participate in client call and understand requirements

3.      Convert design and architecture to code using best practices

4.      Provide expert level knowledge and guidance on modern software engineering techniques and methodologies for code reviews

5.      Demonstrate expertise in a variety of software concepts (object-oriented design), practices (design patterns), and procedures (troubleshooting defects)

6.   Able to troubleshoot and debug the code, write code with best coding practice and perform unit & Integration testing

7.      Collaborate with the technical team to build and migrate applications in Azure

8.      Test and update application so that it can be used for cross web browsers

9.      Use and set-up CI/CD pipeline

Job Details:

As a Software engineer you will be able to challenge the idea of “impossible”, producing results that are elegant, simple and don’t require a team of experts to decode. You are driven by innovation, fresh ideas and new ways to produce high quality solutions. 

Job Description:

Position Summary:

We are looking for a Cloud developer responsible for the development and maintenance of cloud applications deployed in AWS environment. Your primary focus will be the development of such applications and their integration with other services. A commitment to open mind, problem solving, ability to learn, and creating quality products is essential.

Responsibilities:

• Ensure the performance, quality, and responsiveness of services
• Collaborate with a team to define, design, and ship new features
• Innovative thinking of finding solutions to needs
• Identify and correct bottlenecks and fix bugs
• Help maintain code quality, automatization and documentation
• Use Agile Scrum Methodology for software development
• Develop unit tests for all new code
• Provide code reviews for all new code and participate to code reviews of other people
• Diagnose and resolve complex level issues of application
• Participate in interactions with all levels of personnel with different teams
• Design and build services on top of AWS

Skills:

• Strong knowledge of Python
• Strong knowledge of Web Services (Rest or SOAP APIs)
• Strong knowledge of React JS or any other JavaScript
• Solid understanding of object-oriented programming
• Knowledge of Java and Spring Boot is good to have
• Knowledge of AWS is good to have
• Knowledge of TypeScript is good to have
• Knowledge of Linux is good to have
• Knowledge of HTML and CSS is good to have
• Knowledge of AWS CloudFormation is good to have
• Knowledge of Elasticsearch is good to have
• Familiarity with continuous integration
• Any authorized Java, AWS, Linux, or Python certifications will be value added
• Min 2 years of work experience in relevant technologies
• Excellent interpersonal and written communication skills