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My in-house, trademarked application already drafts sprinkler layouts, calculates total square footage, and produces job-ready reports, but several rough edges remain. I need a developer who can jump into the existing codebase and help me take it over the finish line. Scope of work • User Interface – refine the workflow, correct display glitches, and ensure the drawing canvas feels smooth and responsive. • Backend Logic – trace and resolve calculation or state-handling bugs that occasionally skew square-foot totals, then streamline the algorithms for faster runtimes. • Database Management – review the current schema, patch any data-integrity issues, and optimise queries so large projects load instantly. Corrections & enhancements The priorities are fixing known bugs first, then improving overall performance, and finally updating integration points so the program plays nicely with our latest CAD plug-ins and reporting tools. Acceptance criteria The build is considered complete when all existing test scenarios pass without error, square-footage calculations match our manual benchmarks, UI operations remain fluid under a full-size project, and the installer runs on our target Windows environments without additional tweaks. You will receive full source access, our issue tracker, and sample project files to reproduce every known defect. All work must remain confidential and will be delivered back through our private Git repository with clear commit messages.
Project ID: 40550349
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159 freelancers are bidding on average $149 USD for this job

Interesting project, I will dig into your sprinkler design codebase and fix the square-footage calculation bugs first, then move to the UI glitches on the drawing canvas and the query performance issues on large projects. The first thing I will do is reproduce every defect using your sample project files and issue tracker, then verify fixes against your manual benchmarks before touching production. Questions: 1) What is the tech stack (language, framework, database)? 2) Are the CAD plug-in integration points documented, or will I need to reverse-engineer those connections? Send me repo access and I can start this week. Looking forward to potentially working together. Thanks, Kamran
$90 USD in 5 days
8.6
8.6

Hi I have strong experience working with existing Windows desktop applications, drawing/canvas workflows, backend calculation logic, database optimization, reporting systems, CAD-related integrations, and private Git-based development. The main technical challenge is safely improving a trademarked production application without disrupting existing sprinkler layout workflows, square-footage calculations, installer behavior, or reporting outputs. I can start by auditing the current codebase, reproducing known defects from your issue tracker and sample files, then fixing the highest-impact UI, calculation, state-handling, and data-integrity problems. For the drawing canvas, I can improve responsiveness, correct display glitches, and smooth the user workflow around layout creation and editing. On the backend, I can trace calculation discrepancies, compare outputs against manual benchmarks, refactor slow algorithms, and add safeguards so square-foot totals remain consistent. For the database layer, I can review schema design, optimize queries, fix integrity issues, and improve loading performance for large projects. I am comfortable working under confidentiality, using clear Git commits, and integrating carefully with CAD plug-ins and reporting tools. Thanks, Hercules
$140 USD in 7 days
7.5
7.5

Hi, We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on PHP, JavaScript, Mobile App Development, MySQL, Software Development, Backend Development, Database Management, Software Engineering Lets connect in chat so that We discuss further. Thank You
$210 USD in 7 days
7.3
7.3

Hello, I'd be glad to help bring your application to production quality. I have experience debugging and enhancing complex desktop applications, improving UI responsiveness, optimizing backend logic, and refining database performance while preserving existing functionality. My approach is to first reproduce and resolve the reported issues, validate square-footage calculations against your benchmarks, optimize algorithms and database queries for large projects, and ensure compatibility with your latest CAD integrations. All changes will be delivered through your private Git repository with clean commit history and clear documentation. I'm comfortable working under NDA and maintaining complete confidentiality throughout the project. I look forward to reviewing the codebase, issue tracker, and sample files to discuss the best path to a stable, high-performance release.
$250 USD in 7 days
7.7
7.7

Hi there, your trademarked sprinkler layout drafting and total square foot calculation sounds like a precise task that needs accuracy with possibly complex hydraulic calculations hidden beneath the surface. Such complexities demand deep backend control which Smart Sols can handle effectively with our 10+ years in Laravel and Native PHP development ensuring reliable, scalable solutions. How do you currently manage updates to your sprinkler design algorithms to keep up with evolving standards? Let's discuss how we can bring robust precision to your software within your budget.
$250 USD in 7 days
6.9
6.9

Hello! As per your project post, you are looking to complete your existing trademarked sprinkler design software by refining the user experience, resolving backend issues, optimizing database performance, and improving integrations with your latest CAD plugins and reporting tools. The goal is to transform the current application into a stable, high performance, and production ready solution that delivers accurate calculations and a seamless design workflow. My focus will be on delivering a complete enhancement solution featuring UI workflow improvements, drawing canvas optimization, display issue resolution, backend bug fixing, calculation accuracy improvements, state management optimization, database schema review, query optimization, data integrity enhancements, performance tuning for large projects, CAD plugin compatibility updates, reporting tool integration. I specialize in full stack application development, C#, .NET, React, JavaScript, SQL, PostgreSQL, desktop and web applications, performance optimization, CAD integrations, REST APIs, and complex business software development. My focus will be on delivering a reliable, scalable, and high performance application while preserving your existing business logic and improving overall usability. Let’s connect to discuss your existing application, priority improvements, and long term roadmap so we can deliver a stable and high performing sprinkler design solution. Best regards, Nikita Gupta.
$300 USD in 10 days
6.9
6.9

With over a decade of experience in software development, I am confident that I can help you complete your sprinkler design software with the highest level of professionalism and precision. My proficiency in Python, a language upon which your project is built, coupled with my extensive knowledge in web automation and data mining, will enable me to dive into your pre-existing codebase and ensure it reaches its full potential. I understand the specific challenges you're facing with your application on both the frontend and backend - an unresponsive User Interface, calculation errors, and slow runtimes. My expertise in streamlining algorithms for faster performance will help address these concerns effectively. Additionally, my SCIP-based mentality (solve, correct, improve, polish) as testified by previous clients will be invaluable in not just overcoming known hurdles but also making meaningful enhancements to your software. Moreover, you can count on my confidentiality throughout the development process. I am well-versed with private Git repositories and clear commit messages like you require for the delivery of your project. Working together would be a seamless integration of my expert skills into the needs of your existing project for unmatched results. Let's power up your sprinkler design software! Contact me today and let's get started!
$30 USD in 1 day
6.6
6.6

With over a decade's worth of experience in software development and project management, my team and I, lead by me, SUNIL, are well-versed in handling intricate tasks such as yours. We have an extensive background in working with databases, especially MySQL and PostgreSQL. This proficiency will enable us to not only review your current schema but also patch any data-integrity issues, notwithstanding optimizing queries for better performance. Moreover, we are skilled in Web Development and Software Engineering – encompassing fitting technologies like PHP, Laravel, JavaScript, and TypeScript – all relevant to your project's needs. Our experience with Third-party Integrations will prove invaluable when it comes to updating integration points for your program to perform seamlessly with your latest CAD plug-ins and reporting tools.
$30 USD in 7 days
7.1
7.1

Hello! We can jump into your existing application and help take it over the finish line. 1. Which bugs or rough edges should we fix first? 2. Do you want us to focus on UI, backend logic, or database performance first? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$140 USD in 7 days
6.7
6.7

Hi There!!! ★★★★ ( Sprinkler design software optimization, bug fixing & performance enhancement ) ★★★★ Project understanding: You need an experienced developer to improve your existing sprinkler design software by fixing UI issues, resolving calculation and backend bugs, optimizing database performance, and ensuring compatibility with updated CAD plugins and reporting tools. ⚜ UI workflow refinement & display bug fixing ⚜ Backend logic debugging & algorithm optimization ⚜ Accurate square-foot calculation validation ⚜ Database schema review & query optimization ⚜ CAD plugin & reporting tool integration updates ⚜ Windows build testing & installer verification ⚜ Clean Git commits with confidential development workflow I have experiance working on complex software maintenance, backend optimization and database performance tuning. I will first reproduce and fix reported issues, then optimize performance while keeping the code clean, maintainable and fully compatible with your existing architecture. Let’s connect and review the issue tracker and codebase. Warm Regards, Farhin B.
$110 USD in 10 days
6.8
6.8

I am Muhammad Ayyaz, a highly experienced Full Stack Developer well versed in the exact technologies required for your Sprinkler Design Software project. Over the past 6 years, I have consistently built robust web and mobile applications using PHP, Laravel, React JS, and Flutter for several businesses. In terms of databases, I am comfortable handling both MySQL and SQLite. My penchant for creating clean and well-documented code will ensure your existing program gets a much-needed overhaul. One of the standout reasons to choose me is my strong commitment to client satisfaction throughout the entire project lifecycle - from initial ideation to successful execution. I believe in giving regular progress updates and maintaining a quick response time to tackle any emerging issues promptly. After-launch support is also imperative; I don't just walk away after deployment but provide reliable maintenance services to address any post-installation requirements. Choose me and let's transform your rough edges into a polished Sprinkler Design Software solution that meets all your needs!
$30 USD in 1 day
6.1
6.1

I see your sprinkler design software already does quite a bit. It creates layouts, calculates totals, and generates reports. I can help smooth out the user interface, fix any display glitches, and make sure the canvas feels responsive as you want. Also, I will address the backend logic to fix those pesky bugs that affect calculations. Optimizing the code will reduce runtime and improve performance. Database management is key, so I will patch data integrity issues and optimize your MySQL queries. I am eager to help finish this project smoothly, ensuring existing tests pass and everything integrates well with your CAD tools. What challenges do you foresee in the integration with the latest CAD plug-ins? ### What is the timeline you have in mind for these enhancements? ### Are there specific areas you need me to focus on first? ### Will I have access to the previous work and documentation? ### What is your current tech stack for the application?
$30 USD in 12 days
6.0
6.0

I've done exactly this kind of work — jumping into existing PHP/JS/MySQL applications, systematically hunting down bugs using issue trackers and sample project files, and getting a codebase to a reliable, production-ready state. My approach for your sprinkler app: 1. Start with the square-footage calculation bugs — reproduce each defect against your manual benchmarks, trace the logic, and fix with clean, commented code so future changes don't reintroduce the issue. 2. UI/canvas glitches — audit the drawing canvas for rendering/state issues and smooth out the workflow so it holds up under full-size projects. 3. DB schema + query review — identify integrity gaps and slow queries, then optimise so large projects load instantly. 4. CAD plug-in + reporting integration updates — map the current integration points, confirm the expected data exchange format, and update so everything plays nicely with your latest toolchain. I work through private Git with clear commit messages, keep code confidential, and hand back a clean, passing test suite. Happy to sign an NDA if needed. One question: what's the current PHP version and framework (vanilla PHP, Laravel, etc.)? That helps me ramp up faster on day one.
$140 USD in 7 days
6.1
6.1

Greetings, I'm a full stack developer with 10+ years of experience, I'd be glad to help bring your application across the finish line. I have experience debugging and optimizing complex desktop applications, improving UI responsiveness, refining backend logic, and optimizing database performance while maintaining clean, well-documented code. I'll focus on resolving the existing issues first, validating calculation accuracy against your benchmarks, optimizing performance for large projects, and ensuring seamless compatibility with your CAD integrations. I'm comfortable working with private repositories and confidential codebases, and I'll provide clear commit history throughout the project. Why work with me? ★ Proven track record: 75 successful projects with 5-star reviews ★ Expertise in Node.js, Angular, React, Express, Python, Django, Flask, PHP, WordPress, Laravel, Codeigniter and more ★ Responsive, deadline-focused, and committed to results ★ 3 months of free post-launch support Let’s schedule a quick chat to discuss your preferred tech stack, timelines, and launch goals. I’m confident I can bring your vision to life. Best regards, Samar H.
$100 USD in 4 days
6.1
6.1

Hello, I hope this message finds you well. I have carefully reviewed your project requirements for the Complete Sprinkler Design Software. With my expertise in PHP, JavaScript, Mobile App Development, MySQL, and Software Engineering, I am confident that I can assist you in enhancing your existing application to meet your objectives. My approach involves structured requirement confirmation, controlled planning, clean implementation, rigorous testing, and milestone-based transparency to ensure a successful project delivery. I have a proven track record in backend development and database management, which aligns perfectly with the tasks outlined in your project description. I believe my experience and skills make me a strong fit for this project. You can view some of my previous work in my portfolio: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ Before we proceed, could you please clarify your top priority among the listed corrections and enhancements? I look forward to discussing the project further with you in an open chat to finalize the scope smoothly. Best regards, Muhammad Anas Khan
$90 USD in 4 days
5.7
5.7

✋ Hi There!!! ✋ THE GOAL OF THE PROJECT:- TO DEBUG, OPTIMIZE, AND ENHANCE AN EXISTING SPRINKLER DESIGN SOFTWARE WITH FOCUS ON UI IMPROVEMENT, ACCURATE CALCULATIONS, AND DATABASE PERFORMANCE I have carefully reviewed your requirement to refine your existing in house application by fixing calculation bugs, improving UI responsiveness, and ensuring stable performance across large project data. I am best fit because I specialize in debugging complex legacy systems and optimizing backend and database driven applications. 1 UI refinement to improve drawing canvas responsiveness and eliminate display glitches 2 Backend debugging to fix square footage calculation errors and improve processing performance 3 Database optimization for faster load times, improved schema integrity, and stable query execution UI design, database management, testing, full source code delivery at project completion, and structured code optimization included. 9+ years experience as a full stack developer I have completed similar software enhancement projects involving CAD style tools, calculation engines, and performance optimization of large scale systems. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$147 USD in 3 days
5.4
5.4

Hi, We will debug and optimize your sprinkler design application across UI, backend logic, and database layers. For the square-footage calculation bugs, we will trace the state-handling pipeline step by step against your manual benchmarks. Fixing data flow there often resolves display glitches downstream too. A couple of quick things to confirm: 1) What is the current tech stack (language, framework, database)? 2) Which CAD plug-ins need integration updates? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Looking forward to discussing further. Best regards, Faizan
$90 USD in 5 days
5.5
5.5

Hi, this application needs bug fixing with respect for the existing logic, because wrong square-foot totals can break both trust and job output. The drawing canvas, manual benchmark comparisons, Windows installer, private Git workflow, and CAD/reporting integrations show this is a stabilization project, not a rewrite. I will trace the UI glitches, state bugs, calculation errors, database bottlenecks, and integration points against your sample files and issue tracker, then return clean commits with clear notes. The priority order makes sense: known defects first, performance second, integration cleanup last. Which language and framework is the current Windows application built in? Best regards, Muhamad Saad K
$70 USD in 6 days
5.5
5.5

✋ Hi there. I can polish your sprinkler design software by refining the UI, debugging the calculation engine, and optimizing database performance. ✔️ I have experience with CAD-adjacent desktop applications and have worked with similar drawing-based software using C# and SQLite. I will develop this by first reproducing the known UI display glitches and calculation bugs using your issue tracker and sample files, fixing the backend logic that skews square-foot totals by stepping through the algorithm and adding unit tests, then optimizing database queries for large projects with indexing and reviewing the schema for data integrity issues. Please click the 'Chat' button to start our valuable conversation. Looking forward to collaborating with you! Best regards, Mykhaylo
$140 USD in 7 days
5.4
5.4

I have strong experience maintaining and optimizing desktop/web applications, debugging complex business logic, improving UI performance, optimizing databases, and integrating third-party tools, and I can efficiently stabilize your existing codebase while delivering clean, well-documented enhancements through your private Git workflow.
$140 USD in 2 days
5.0
5.0

Summerville, United States
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