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VB.NET / MS SQL Developer Needed – Uganda EFRIS Integration I am looking for an experienced VB.NET and MS SQL Server developer to integrate Uganda’s Electronic Fiscal Receipting and Invoicing System (EFRIS) API into an existing VB.NET POS system. The ideal freelancer must have prior experience with tax or statutory compliance integrations, such as: Uganda – EFRIS, Kenya – KRA / TIMS, UAE – FTA, India – GSTN, Angola – SAF-T (or similar government e-invoicing systems) Scope of Work Integrate URA EFRIS API into a VB.NET POS Implement e-invoicing, fiscal receipts, QR code handling, and invoice validation Handle API authentication, error handling, and response reconciliation Ensure full Uganda URA EFRIS compliance Requirements Strong VB.NET & MS SQL Server experience Proven work on EFRIS or similar e-invoicing systems Experience working with government APIs Ability to provide samples or proof of similar completed work Only freelancers with relevant fiscal/tax system experience should apply.
Project ID: 40171345
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18 freelancers are bidding on average $60 USD for this job

I am an experienced VB.NET and MS SQL developer with a proven track record in integrating tax and statutory compliance systems. I have successfully worked on projects similar to Uganda's EFRIS API integration, handling e-invoicing, fiscal receipts, QR code handling, and invoice validation. My expertise includes working with government APIs and ensuring full compliance with regulatory requirements. I am confident in my ability to deliver high-quality results for this project.
$55 USD in 7 days
5.8
5.8

Hello. I read your requirement i will do that. Please come on chat we will discuss more about this. I will waiting your reply
$100 USD in 1 day
5.8
5.8

Greetings, I see you're looking to integrate Uganda's EFRIS API into your existing VB.NET POS system. This involves implementing features like e-invoicing, fiscal receipts, and QR code handling while ensuring compliance with URA regulations. My approach would involve a thorough understanding of the API documentation and leveraging my experience with similar tax compliance systems to ensure seamless integration. Having worked with VB.NET and MS SQL Server extensively, I have successfully tackled similar projects that required handling government APIs, which means I can effectively manage authentication, error handling, and response reconciliation for EFRIS. My focus will be on delivering a robust solution that meets all compliance requirements while enhancing the functionality of your POS system. Best regards, Saba Ehsan
$55 USD in 30 days
5.1
5.1

As a highly experienced and versatile Full Stack Software Engineer with over 12 years of experience, I believe my skills align perfectly with your requirements for the VB.NET EFRIS integration project. My proficiency in VB.NET, MS SQL, and vast experience in working with government APIs make me an ideal candidate for this project. I have significant exposure to fiscal/tax system integrations across multiple countries like UAE, Kenya, India, and Angola. My ability to ensure complete compliance with statutory and tax regulations has been proven through my work in similar projects. Being familiar with e-invoicing systems like EFRIS, KRA/TIMS, FTA, and GSTN adds value to my work by facilitating smoother system integration. Additionally, my expertise in handling API authentication, error management, and response reconciliation guarantees a seamless integration process for Uganda's URA EFRIS API. Having previously worked for large organizations on complex web and mobile app projects has honed my skills to meet strict deadlines while delivering top-notch quality. Communication is key to any successful partnership. With me, you can expect effective communication and collaboration throughout the project lifecycle. It would be an honor to utilize my vast knowledge and experience to help make your existing VB.NET POS fully compliant with Uganda's EFRIS system. Let's create a great product together!
$50 USD in 3 days
4.7
4.7

I read your project description carefully and have a great interest in your project. I'm very familiar with Asp.net core, React.js, Node.js, C# & VB.NET, MS SQL , My SQL, MS Access I have a deep understanding and 20 years experience in C# ,VB and ASP.NET, and previously have developed a lot of programs. So, I can implement your request successfully in time. If you hire me, I'll do my best for you. I can start right now, please ping me.
$55 USD in 7 days
4.4
4.4

Hello, I hope you are doing well. I’m a VB.NET and MS SQL specialist with hands-on experience building and upgrading POS systems and integrating tax/compliance APIs. My focus is clean architecture, secure data handling, and reliable SQL reporting. I have worked on Uganda URA EFRIS-like integrations and other government e-invoicing systems, implementing API auth, error handling, invoice validation, QR code processing, and reconciliation using VB.NET, REST, JSON/XML, and SQL Server. I can take this from design through deployment, ensuring URA EFRIS compliance, robust logging, retries, and test coverage. I will deliver a solid, production-ready integration tailored to your POS. Please feel free to contact me so we can discuss more details. Best regards, Billy Bryan
$65 USD in 1 day
4.1
4.1

Hey , I just went through your job description and noticed you need someone skilled in SQL, Crystal Reports, VB.NET, Software Architecture and Microsoft SQL Server. That’s right up my alley. You can check my profile — I’ve handled several projects using these exact tools and technologies. Before we proceed, I’d like to clarify a few things: Are these all the project requirements or is there more to it? Do you already have any work done, or will this start from scratch? What’s your preferred deadline for completion? Why Work With Me? Over 180 successful projects completed. Long-term track record of happy clients and repeat work. I prioritize quality, deadlines, and clear communication. Availability: 9am – 9pm Eastern Time (Full-time freelancer) I can share recent examples of similar projects in chat. Let’s connect and discuss your vision in detail. Kind Regards, Zain Arshad
$170 USD in 5 days
3.6
3.6

I have hands-on experience integrating Uganda's EFRIS API into VB.NET POS systems, including commodity code mapping, tax category handling, and the full e-invoice lifecycle from initialization through credit note management. My approach involves building a dedicated EFRIS service layer within your existing application that handles API authentication via the URA-provided keys, constructs compliant JSON payloads for invoice uploads, processes fiscal receipts with embedded QR codes, and implements robust error handling with automatic retry logic for failed submissions. I work extensively with MS SQL Server for transaction reconciliation and Crystal Reports for compliant invoice printing. I can start immediately and would be happy to share samples from similar EFRIS and KRA integrations I've completed.
$10 USD in 1 day
2.6
2.6

Hello, I've reviewed your requirements of VB/ MS SQL and have worked on similar projects before. With my experience and skills, I can complete your project to your satisfaction. Please contact me via chat to discuss the details. Thank you, Pietro.
$50 USD in 12 days
2.0
2.0

Hello, As an experienced IT professional, I have had the opportunity to work with a range of programming languages and systems, including VB.NET and MS SQL Server - the very ones that this project requires. The fact that I have hands-on experience with government APIs and expertise in process automation and troubleshooting further fortify my candidacy for this position. Even more significant is my track record of working with e-invoicing systems, with Uganda's EFRIS (Electronic Fiscal Receipting and Invoicing System) feature included. I understand the importance of ensuring full compliance with the URA EFRIS and appreciate the gravity of any mishaps or errors that could arise from such integrations; therefore, you can trust me to be meticulous in handling API authentication, error handling, and response reconciliation. Having met stringent compliance standards with e-invoicing systems in various countries such as Kenya, UAE, India, and Angola- including tax or statutory restrictions- working on Uganda's system will be seamless for me. In summary, what sets me apart from other candidates is not just my technical proficiency but also my ability to deliver solutions that streamline processes while upholding security protocols. I am confident in my skill set to not only integrate Uganda's EFRIS API into your VB.NET POS system seamlessly but ensure extensive functionality as well as 100% compliance. Let us create a solid foundation for your business! Thanks!
$10 USD in 6 days
0.0
0.0

As someone experienced in software architecture with a particular focus on EFRIS-style implementations, I can assure you that your project will be in extremely capable hands. Over the past four years, I've been consistently delivering scalable, secure, and high-performing digital solutions worldwide - from efficient inventory management and invoice validation systems to AI-driven chatbots, all with a comprehensive understanding of tax or statutory compliance. When it comes to the Uganda EFRIS integration specifically, my skill set is tailor-made for the task at hand. My strong VB.NET & MS SQL Server experienced combined with an in-depth knowledge of fiscal/tax systems give me an edge and save you time. But competence isn't my only virtue; throughout my career, clear communication and regular updates have been key in maintaining client satisfaction. In conclusion, hiring me means not only benefiting from my proven proficiency but also gaining a partner who can convert ideas into powerful revenue-generating digital products. I'm quite excited to discuss your project further and look forward to us creating an automated, compliant, and efficient VB.NET POS system together. So go ahead and hit that message button; let's bring this impactful project to life!
$40 USD in 1 day
0.0
0.0

Hi there! I see you need Uganda’s EFRIS API integrated into your VB.NET POS system for full tax compliance. I have strong experience with VB.NET, MS SQL Server, and e-invoicing integrations, including fiscal receipts, QR codes, and government APIs. I can handle authentication, error handling, and response reconciliation to ensure your system fully meets URA EFRIS standards. Do you have the API documentation and credentials ready for integration? I’m ready to start this integration immediately. Open chat now.
$55 USD in 3 days
0.0
0.0

I need a fully automated bot that connects to the Deriv platform and hunts short-term arbitrage opportunities on the Volatility Indices. The core idea is simple: spot price discrepancies between synthetic markets, enter and exit fast, and repeat without human intervention. Here is what I expect: • A working script or application (Python, Node.js, or another language you are comfortable with) that logs in through the Deriv API, scans multiple Volatility markets in real time, and places trades the moment an arbitrage gap appears. • Adjustable parameters for stake size, maximum spread, trade frequency, and optional risk controls such as daily loss limits. • Clean, well-commented code plus a quick README so I can tweak settings and redeploy on my own server. • A short screen-share or video walkthrough proving the bot in action on a demo account. When you reply, please include links or repos that show similar trading automation you have built before; past work is my main filter. If you have clever ideas for latency control, smart order routing, or post-trade analytics, feel free to outline them as well—anything that tightens execution speed will be valued. I’m ready to move quickly once I see evidence that you have delivered high-frequency or arbitrage bots in the past.
$10 USD in 7 days
0.0
0.0

hi I have done many applications and systems on vb.net and ready to show you some examples lets discuss Thanks
$55 USD in 7 days
0.0
0.0

Hello, I’ve reviewed your requirements and this project aligns well with my experience in VB.NET, MS SQL Server, and statutory e-invoicing integrations. I’m confident I can integrate Uganda URA EFRIS into your existing VB.NET POS system with full compliance. I’m new on the Freelancer platform, but I have 7+ years of experience working on tax and government API integrations, including systems similar to EFRIS, KRA/TIMS, VAT and e-invoicing platforms. I’ve handled API authentication, fiscal receipt generation, QR code handling, validation workflows, error reconciliation, and reporting in production POS environments. I’m comfortable working with government APIs, strict compliance rules, and legacy VB.NET systems backed by MS SQL Server, and I can provide relevant examples of similar completed work. Two quick questions: Is your POS currently using EFRIS-ready invoice structures, or will mapping be required? Do you need both online (real-time) and offline fallback handling for EFRIS submissions? Let’s jump into chat and get started right away. Best, Jibran
$55 USD in 7 days
0.0
0.0

Hello THere, I can integrate Uganda URA EFRIS cleanly into your existing VB.NET + MS SQL POS without disrupting live billing. I’ve worked on statutory and tax-system integrations including India GSTN e-invoicing, Kenya KRA/TIMS-style APIs, and other government compliance platforms where accuracy, retries, and audit trails were critical. I’m comfortable handling EFRIS-style flows: secure authentication, payload signing, invoice submission, validation responses, QR code generation, and reconciliation back into the POS database. On the SQL side, I design reliable logging, status tracking, and retry mechanisms so invoices are never lost even when URA endpoints are slow or unavailable. The integration will follow URA specifications strictly, with clear error handling, response mapping, and compliance checks. I document endpoints, field mappings, and edge cases so future audits or upgrades are painless. Quick Questions EFRIS API version currently mandated by URA? POS is desktop or client–server? Offline invoicing with later sync required? Volume of invoices per day? Need sandbox + production rollout support? If you want someone who understands fiscal compliance systems, not just APIs, I’m ready to start. Let's get in touch Thanks
$55 USD in 7 days
0.0
0.0

Kampala Uganda, Uganda
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Member since Jun 18, 2018
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