WPF Developer – Android to Windows POS Migration
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
C# (.NET 6/8), WPF, XAML, MVVM
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

About ONEPOS RETAIL SOLUTIONS PVT LTD
About
OneHubPOS is your strategic partner in your journey towards success.
Our CEO and Founder Satheesh Kanchi, is a seasoned restauranteur and IT expert. Satheesh knows the restaurant industry inside out, having faced the same challenges you do daily. OneHubPOS was built with a vision to provide comprehensive solution to streamline all your operations.
With Satheesh's extensive industry experience and knack for innovation, we've assembled a dream team of experts. OneHubPOS is your one-stop solution, whether you're running a restaurant or a retail store. OneHubPOS is the definitive solution for both restaurants and retail stores, offering an integrated platform and a seamless workflow for efficient management of your business.Our solution is meticulously constructed using agile methodologies, ensuring adaptability to your specific business needs.
We understand one-size-fits-all approach simply won't cut it. We take pride in crafting custom solutions to suit your needs. If your current system is constraining your business and its potential, it's high time we had a chat!
Connect with the team
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What we Require
We are recruiting technical experts with the following core skills and hands-on experience on
Mandatory skills : Core java, Microservices, AWS/Azure/GCP, Spring, Spring Boot
Hands on experience on : Kafka , Redis ,SQL, Docker, Kubernetes
Expert proficiency in designing both producer and consumer types of Rest services.
Expert proficiency in Unit testing and Code Quality tools.
Expert proficiency in ensuring code coverage.
Expert proficiency in understanding High-Level Design and translating that to Low-Level design
Hands-on experience working with no-SQL databases.
Experience working in an Agile development process - Scrum.
Experience working closely with engineers and software cultures.
Ability to think at a high level about product strategy and customer journeys.
Ability to produce low level design considering the paradigm that journeys will be extensible in the future and translate that into components that can be easily extended and reused.
Excellent communication skills to clearly articulate design decisions.
We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team.
A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Job Description:
• Experience in Core Java, Spring Boot.
• Experience in microservices.
• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
• Good knowledge of multi-threading
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should be able to express their design ideas and thoughts.
About Wissen Technology:
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen hassuccessfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.
Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.
Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.
Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
oin us and be a part of a company that thrives on creativity, technology, and excellence.
CHANCE TO WORK WITH APPS WITH 10LAKH CONCURRENT USERS IN GAMING INDUSTRY
Role Description
- You are a champion at Code reviews and Unit/Mock/integration Tests
- You have a strong sense of ownership of what you design and deploy
- You provide strong technical mentorship to team members
- You are an excellent team player
- You continuously learn and improve
We are seeking a highly motivated and experienced Senior Java Software Engineer to join our team. In this role, you will lead and manage software development projects across diverse domains such as Gaming, Banking, Fintech, Fantasy Sports, IT, E-commerce, Logistics, Healthcare, and On-Demand Services. You will be responsible for ensuring the successful delivery of projects, meeting deadlines, and exceeding client expectations.
Skill Sets
- Excellent Programmer: in Java Intermediate (Collections, Polymorphism, Design Patterns) to Expert level (Annotations, Lambda, Streaming, Concurrency)
- Startup Experience: Proven ability to take extreme ownership of results, with a history of leaving a lasting impact on the business.
- Relevant Experience: At least 6-10 years of experience demonstrated the ability to develop resilient, high-performance, and scalable code tailored to application usage demands.
- Java Framework Expertise: Significant experience in designing and building Java microservices with VERT.X, SPRING BOOT, with proficiency in Java.
- REST API & GraphQL: Hands-on expertise in development API endpoints with RESTful & GraphQL approach, also non-REST frameworks like gRPC over Thrift or Protobuf Nuances of TCP, UDP, HTTP, HTTP2, SSL, Thorough understanding of designing distributed systems without single point of failures
- Cloud Proficiency: Strong understanding and hands-on experience of building applications deployed on the cloud using Google Cloud Platform or Amazon Web Services (AWS), Docker, and Kubernetes, Experience writing batch/cron jobs using Python and Shell scripting.
- Containerization & Orchestration: Experience with containerization technologies like Docker and orchestration tools like Kubernetes.
- Time & Space Complexity: if methods you write are in the traffic request path, you know how to avoid unacceptable time complexity & space complexity.
- Database Knowledge: Strong experience with Data Structures & Algorithms working with MongoDB, PostgreSQL, MySQL, Redis, ElasticSearch, and other similar databases, ability to choose the right data store for the given requirements Relational, Graph, Object, Document, Columnar, Key-Value. Experience with Redis, Memcache, EHCache, Hazelcast, Aerospike
- Messaging Systems: Proficiency in working with RabbitMQ, BullMQ & others
- Agile Practices: At least a few years of experience practicing the SCRUM framework, collaborating with scrum masters, product owners, and other stakeholders.
- Collaboration & Communication: A team player who thrives in a remote, collaborative environment.
- Communication Skills: Strong verbal and written communication skills.
- Solutions-Oriented: Comfortable with the fast pace of startup life and adept at finding solutions to challenges.
Responsibilities
- Scalable Architecture: Lead the design and development of scalable architecture to ensure efficient performance and reliability of web and mobile applications.
- Informed Decisions: Make informed architectural decisions that align with both current and future business needs.
- Security & Privacy: Ensure security and privacy considerations are integrated into the selection of solutions and coding of back-end services and API endpoints.
- Code Quality & High Standards: Uphold high standards of code quality through regular reviews, maintaining best practices in programming.
- Robust Testing: Implement robust testing strategies to ensure code reliability and performance.
- Backend Development: Design, develop, and deploy backend services and APIs using VERT.X, SPRING BOOT Java and AWS technologies.
- NoSQL Expertise: Effective schema design and data modeling for NoSQL databases, ideally MongoDB, including robust indexing strategies.
- Technical Debt Management: Monitor and control technical debt to ensure it does not compromise application scalability or performance.
- Task Planning: Collaborate with the PM and BA to plan and delegate tasks efficiently among backend team members, ensuring clear objectives and timelines.
- User Requirements: Support the PM, BA team in identifying and analyzing user requirements to ensure development aligns with user expectations and project scope.
- Systems Thinking: Apply systems thinking to align with broader business objectives.
- Autonomy: Get things done independently without supervision and without creating future issues.
- Simplicity: Strive for simplicity in solutions and code.
- Proactive Problem Solving: Fix problems, even those outside your immediate responsibility.
- Solution-Oriented: Focus on providing solutions to problems, not just writing code.
Life@Sciflare:
- An exciting & lively workplace gives you the chance to work in an environment where you may unleash your creativity and inventiveness to the best extent possible.
- Work in a collaborative setting where your cooperative team contributes new perspectives to your objectives and forges strong bonds.
- Growth mindset: You are nurtured through each stage of your professional advancement by learning and unlearning new things.
About this roleWe are seeking an experienced MongoDB Developer/DBA who will be
responsible for maintaining MongoDB databases while optimizing performance, security, and
the availability of MongoDB clusters. As a key member of our team, you’ll play a crucial role in
ensuring our data infrastructure runs smoothly.
You'll have the following responsibilities
Maintain and Configure MongoDB Instances - Responsible for build, design, deploy,
maintain, and lead the MongoDB Atlas infrastructure. Keep clear documentation of the
database setup and architecture.
Ownership of governance, defining and enforcing policies in MongoDB Atlas.Provide
consultancy in drawing the design and infrastructure (MongoDB Atlas) for use case.
Service and Governance wrap will be in place to restrict over provisioning for server size,
number of clusters per project and scaling through MongoDB Atlas
Gathering and documenting detailed business requirements applicable to the data
layer.Responsible for designing, configuring and managing MongoDB on Atlas.
Design, develop, test, document, and deploy high-quality technical solutions on the
MongoDB Atlas platform based on industry best practices to solve business needs.
Resolves technical issues raised by the team and/or customer and manages escalations as
required.
Migrate data from on-premise MongoDB and RDBMS to MongoDB AtlasCommunicate
and collaborate with other technical resources and customers in providing timely updates
on status of deliverables, shedding light on technical issues, and obtaining buy-in on
creative solutions.
Write procedures for backup and disaster recovery.
You'll have the following skills & experience
Excellent analytical, diagnostic skills, and problem-solving skills
Should understand the Database concept and develop expertise in designing and
developing NoSQL databases such as MongoDB
MongoDB query operation, import and export operation in database
Experience in ETL methodology for performing Data Migration, Extraction,
Transformation, Data Profiling and Loading
Migrating database by ETL, migrating database by manual process and designing,
development, implementation
General networking skills, especially in the context of a public cloud (e.g. AWS – VPC,
subnets, routing tables, nat / internet gateways, dns, security groups)
Experience using Terraform as an IaC tool for setting up infrastructure on AWS
CloudPerforming database backups and recovery
Competence in at least one of the following languages (in no particular order): Java, C++,
C#, Python, Node.js (JavaScript), Ruby, Perl, Scala, Go
Excellent communication skills, often being able to compromise but draw out risks and
constraints associated with solutions. Be able to work independently and collaborate with
other teams
Proficiency in configuring schema and MongoDB data modeling.
Strong understanding of SQL and NoSQL databases.
Comfortable with MongoDB syntax.
Experience with database security management.
Performance Optimization - Ensure databases achieve maximum performance and
availability. Design effective indexing strategies.
Job Description: Backend Developer – Design Qandy
Who are we?
Design Qandy delivers personalised luxury interior design to India’s discerning homeowners and corporates. Led by highly admired luxury brand builders, internationally trained designers, world-class technology professionals and curated teams of turnkey project execution specailists. We seek perfection in design and are committed to bringing back trust and excitement in the design process.
Know more about us on designqandy.com and https://instagram.com/designqandy?igshid=YmMyMTA2M2Y=
Our work culture?
We are a lean team of high performing go-getters, we take ownership in our roles and lead with knowledge. Debates and discussions are an important part of our culture and we encourage people to bring unique perspectives to their conversations. Most importantly, we love solving problems.
Each day is inspiring and we encourage you to apply for this role and experience it for yourself.
What would you be required to do?
· Write code and tests, build prototypes, solve issues, profile, and analyze bottlenecks
· Design performance gauging, building robust APIs to support mobile and desktop clients
· Manage and optimize scalable distributed systems on the cloud
· Optimization of web applications for performance and scalability
· Develop automated tests to ensure business needs are met and allow for regression testing
· Participate in the entire application lifecycle, focusing on coding and debugging
· Write clean code to develop functional web applications
· Troubleshoot and debug applications
· Perform UI tests to optimize performance
· Manage cutting-edge technologies to improve legacy applications
· Collaborate with Front-end developers to integrate user-facing elements with server-side logic.
· Gather and address technical and design requirements
· Provide training and support to internal teams
· Build reusable code and libraries for future use
What skills we are looking for?
· Good communication skill to communicate with stakeholders, project managers, quality assurance teams, Regularly and other developers regarding progress on the long-term technology roadmap
· Curious and progressive mind to Create and maintain workflows with teams to provide visibility and to ensure workload balance for consistent visual designs
· Good technical knowledge to Produce quality code, raising the bar for the whole team on quality and speed
· Through analytical skills to Recommend system solutions by comparing advantages and disadvantages of custom development and purchase alternatives
Skills Needed:
· PHP Laravel Framework, PHP Design Patterns.
· Proficient in MySQL, PostgreSQL, MongoDB
· APIs, REST API, SOAP API, API Security, Open APIs
· Push Notifications, Laravel Events, Queue, Observers
· Excellent foundation in computer science, algorithms, and web design
· Experience writing highly secure web applications
· Experience with core AWS web-enabling technologies
· Growth mindset, challenging status quo to find new solutions and out-of-the-box ideas
· Experience designing RESTful APIs, specifically for mobile apps
· Computer science degree or equivalent experience
· Experience leading a team
· 3-6 Years’ experience in back-end development.
Who you are:
- You have an overall software development experience of 4 to 10 years
- 3+ years proficiency in Java and Spring boot
- Familiar with distributed computing and frameworks such as gRPC/ protobuf
- Understands JVM metrics, Garbage collection and performance tuning
- Experience in creating high-level design(HLD) and low-level design(LLD)
- You have a good understanding of relational database, NoSQL technologies, and REST
- Good to have experience in HTML, JavaScript, GraphQL, TypeScript, ReactJS and related toolsets
- Exposure to AWS stack/cloud computing
- Self-motivated developer who takes ownership of work
- Bachelor’s degree in Computer Science or Computing related discipline
- Experience in Product Development Environment is a plus.
About OneAssist
OneAssist is founded with a vision to provide a ubiquitous platform for assistance & protection services to customers.
A leader in Assistance and Protection products across Home Appliances, Personal Electronics, Physical and Mobile Wallets, OneAssist is a Technology-led organization. It has created a horizontal Assitance and Protection platform powered by Technology, Analytics and Data Science.
OneAssist wants to provide consumers the convenience of availing assistance and protection products through digital touch points- Mobile App, website, Voice and chat.
Founded in 2011, OneAssist has been well funded by Marquee investors, Sequoia Capital, Lightspeed Venture Partners, Assurant Solutions and Trifecta Capital with total cumulative funding of $33.2 Million. The latest Series C funding of &17.5 Million was raised in 2017.
Some of our significant partnerships are with Airtel, HDFC, HomeCredit, Pinelabs, InstaCash and more.
https://www.linkedin.com/company/oneassist-consumer-solutions/about/">https://www.linkedin.com/company/oneassist-consumer-solutions/about/
https://www.oneassist.in">https://www.oneassist.in
Job Description:
- Write maintainable/scalable/efficient code.
- Design and architect technical solutions for the developer community at OneAssist Work in a cross-functional team, collaborating with peers during the entire SDLC.
- Follow coding standards, code reviews etc. Follow scrum sprint cycles and commitment to deadlines.
Traits we are looking for in you: 3+ years experience developing large scale customer facing internet systems Strong problem-solving skills.
- Hands-on experience in coding capability in desired technology Solid experience in Java/J2EE frameworks such as Spring, Spring Boot, Spring Cloud, Hibernate.
- Strong Experience with Microservices, RESTful Web services, OOPs concepts.
- Nice to have knowledge of Docker, Kubernetes, Jenkins and CI/CD Knowledge
- Strong background in designing or extending existing test frameworks such as Junit Experience with version control systems such as Git. Good understanding of application security (authentication, authorization, web security etc.)









