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I'm looking for a desktop application to streamline our bidding process for drill and blast projects. The primary focus of this software model should be on bidding calculations. Essential features should include: - Automatic bid generation - Historical data analysis - Scenario comparison Ideal skills and experience: - Strong background in software development, particularly for desktop applications - Experience with bidding processes in construction or mining industries - Proficiency in data analysis and integration of historical datasets Additional requirements: - The freelancer will need to sign a Non-Disclosure Agreement (NDA) before commencing work. - I already have a working Excel comprehensive tender model that is copyrighted, which will serve as a reference. Please provide a portfolio showcasing similar projects.
Project ID: 40746084
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209 freelancers are bidding on average $52 AUD/hour for this job

A Warm Hello! We are readily available to start working on this project ! We are an experienced software development agency with strong expertise in building custom business applications, data-driven tools, and calculation-based systems. We will provide you desktop application to streamline the bidding process for drill and blast projects. The application will focus primarily on accurate and efficient bidding calculations, with key capabilities including: * Automatic Bid Generation * Historical Data Analysis * Scenario Comparison * Excel Model Integration * Data Management * Reporting/Export * User-Friendly Desktop Interface Looking forward to discussing this opportunity with you. Best Regards, Ana
$50 AUD in 40 days
9.5
9.5

Hi — Elias here from Miami. I understand you're looking for a desktop application to streamline your bidding process for drill and blast projects. The goal is clear: improve efficiency and accuracy while managing complex workflows. What usually matters most here is ensuring the application can handle multiple user roles and permissions effectively. A common issue in systems like this is workflow complexity, especially when integrating various data sources and automating processes. The tricky part is usually maintaining performance as you scale up project volume. My approach would be to design a modular system that emphasizes maintainability and stability. I’d focus on using Java and Python for the backend, with SQL for robust database management. This structure will facilitate future expansion without major overhauls. I've worked on similar applications that required precise data handling and user management, so I understand the nuances involved. A few questions to better understand the scope: Q1 – What specific user roles do you foresee needing access to the system? Q2 – Are there existing tools or software you currently use that this application needs to integrate with? Q3 – What are your expectations regarding the application's scalability and future feature additions? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$50 AUD in 15 days
8.2
8.2

Hello, Recently, I built a B2B tendering platform with bid management, an auction engine, configurable evaluation/scoring logic, automated workflows, and historical audit data. Your Drill & Blast bidding system is a strong fit for this experience. I’d approach your Excel model as the calculation engine first, mapping inputs, formulas, assumptions, and outputs before converting them into a robust desktop workflow. Beyond simply replicating Excel, we can structure the application to support automated bid generation, historical benchmarking, what-if scenarios, side-by-side bid comparisons, and reusable project assumptions. I’m comfortable signing an NDA before reviewing your copyrighted model and would be glad to discuss the architecture and workflow. Best, Niral
$50 AUD in 40 days
8.0
8.0

Hi — Puru here from ErgoSphere. You're essentially building a desktop application to streamline bidding for drill and blast projects, focusing on bid calculations, automatic generation, historical analysis, and scenario comparison. What usually matters most here is the reliability of the bid generation logic and the accuracy of historical data integration, both critical for informed decision-making. I'd recommend using a robust stack like Java or C# for the desktop application due to their strong support for desktop environments. For data handling, Python could be integrated for its powerful data analysis libraries, ensuring seamless historical data integration. A SQL-based database would be optimal for managing historical datasets efficiently, while ensuring data integrity and security, especially given the NDA requirement. I've worked on intelligent systems, data mining, and scalable applications, aligning well with your needs. A few questions to better understand the scope: Q1 – How should the existing Excel model be integrated or referenced in the new application? Q2 – Are there specific third-party systems or databases the solution must integrate with? Q3 – What are the key performance metrics for bid comparison scenarios? A working prototype could reasonably be targeted within 6–8 weeks, followed by a polished release in roughly 12 weeks depending on data integration complexities. Looking forward to hearing from you.
$60 AUD in 40 days
8.0
8.0

⭐⭐⭐⭐⭐ Desktop App for Fast Bidding Calculations in Drill & Blast ❇️ Hi My Friend, I hope you are doing well. I checked all of your project requirements and I can see you are looking for a desktop bidding application. You have no need to look any further as Zohaib is here to help you! My team is already doing 50+ similar projects for construction and mining software. I will build a clean Windows app that reads your Excel model, creates automatic bids, runs historical data analysis and compares scenarios. I will also add a simple export feature at no extra cost. ➡️ Why Me? I can easily do your bidding tool as I have 5 years of experience in C#, .NET, WPF, data analysis, mining software. Not only this, I have a strong grip on Excel integration, SQL databases and UI design. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing with you in chat. ➡️ Skills & Experience: ✅ C# ✅ .NET ✅ WPF ✅ WinForms ✅ Excel Interop ✅ Data Analysis ✅ SQL Server ✅ UI Design ✅ Mining Software ✅ Construction Bidding ✅ NDA Compliance ✅ Project Integration Waiting for your response! Best Regards, Zohaib
$50 AUD in 40 days
8.0
8.0

Hi, I understand you need a desktop application that makes drill and blast project bidding faster and more consistent. I would build the main calculation model for automatic bid generation, organize historical project data for useful comparisons, and add scenario testing so you can review different costs, quantities, and pricing options before sending a bid. I can use Python, Java, or C# Programming based on your preferred desktop platform and data setup. The application can include clear input forms, saved project records, calculation rules, scenario results, and exportable bid summaries. I would first confirm your current bidding steps and calculation formulas, then create the core model before connecting the historical data and user interface. Please share a sample bid sheet or a few anonymized historical projects so I can understand the required calculations and data fields. Which bidding formulas, cost inputs, and output format should the application use, and do you prefer Windows desktop development in C# or another platform? I can also provide relevant examples of software development work and explain how the calculation logic will be tested for accuracy.
$50 AUD in 34 days
7.4
7.4

Hi there, I can turn your existing copyrighted Excel tender model into a purpose-built desktop application that automates drill and blast bid calculations while preserving the estimating logic your team already relies on. I understand the priority is not simply building a desktop interface, but making bid generation faster, historical data more useful, and scenario decisions easier without compromising your proprietary methodology. My approach is to first review the Excel model under your NDA, mapping its formulas, inputs, cost components, production assumptions and outputs into a structured calculation engine. Then, I’ll build the desktop application around those rules so estimators can enter project data and generate consistent bids with transparent calculations and validation. Historical tender data will be structured for analysis, while scenario modelling will allow key assumptions to be changed and compared side by side before a bid is finalized. Finally, I’ll validate the application against known Excel outputs and edge cases to ensure the software reproduces the established tender logic reliably. You’ll receive a desktop bidding application, automated tender calculations, historical-data analysis, scenario comparison, structured database and documentation. Can you share the Excel tender model after the NDA so I can map its calculation structure and determine the most suitable desktop architecture? Warm Regards, Aneesa.
$50 AUD in 40 days
6.9
6.9

Hello, Drill & Blast Bidding Software {{{ I HAVE CREATED SIMILAR ESTIMATION, BIDDING AND DATA-ANALYSIS SYSTEMS BEFORE AND I CAN SHOW YOU }}} I have 11+ years of software development experience and can build a desktop application focused on fast and reliable drill & blast bid calculations. The system can include: • Automatic bid generation from project inputs and cost rules. • Historical project database and analysis. • Scenario comparison for quantities, costs, margins and assumptions. • Reusable calculation models so bidding logic can be updated easily. • Exportable bid summaries and reports. I will keep the application modular so additional estimation rules, datasets and reporting features can be added later. I can also share relevant examples of estimation/data-driven applications. Thanks, Christina
$50 AUD in 40 days
6.8
6.8

Hi , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Database Management, Data Analysis, C# Programming, Python, Software Development, Java, Desktop Application and SQL. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. For more details Chat with us
$50 AUD in 19 days
6.6
6.6

Hi there, I am excited to submit my proposal for developing a Drill and Blast Bidding Software. With extensive experience in creating custom desktop applications, I am confident in delivering a solution that meets your needs. Understanding the importance of accurate bidding calculations, my approach will focus on integrating automatic bid generation, historical data analysis, and scenario comparison to streamline your process. My background in software development, particularly in the construction and mining sectors, equips me with the necessary skills to create effective bidding solutions. With proficiency in Java, Python, C#, and SQL, I can ensure seamless integration of historical datasets and robust data analysis capabilities. The application will not only automate bid generation but also provide insights through historical data analysis, enabling informed decision-making. By comparing different scenarios, you can optimize your bidding strategy to remain competitive. I have successfully completed similar projects and am eager to showcase my portfolio to demonstrate my capabilities. Let's work together to enhance your bidding process with a tailored desktop application. Best Regards, Efanntyo
$50 AUD in 2 days
6.7
6.7

Hello!, This is James from Hollywood... Your real pain point here is not just “making a desktop app” but removing the slow, error-prone bidding process for drill and blast jobs so quotes are faster, more consistent, and easier to trust. That’s exactly where I can help. I’d approach this in 3 practical phases: 1) Map your current bid workflow, inputs, formulas, and approval steps 2) Build a clean desktop app with a structured database for materials, labour, equipment, haulage, drill patterns, and margin rules 3) Add reporting/export so every bid is reproducible, auditable, and quick to update I work best on systems like this because they need both solid data handling and a simple UI people will actually use. I can build it in Java, Python, C#, or a hybrid stack depending on your environment and what will be easiest to maintain long term. A few quick questions: 1) What are the key variables you want the software to calculate automatically? 2) Do you already have pricing tables/templates, or should I design those from scratch? 3) Should the app support PDF/Excel export and saved bid history for later reuse? Relevant work I’ve done: - internal estimating tool for a construction supplier - desktop inventory and pricing app for a materials business - job costing dashboard for a field services company - quote automation system for a small engineering team If you want, I can help you turn this into a practical bidding tool, not just a basic app.
$70 AUD in 25 days
6.7
6.7

Hi there, I can confidently convert your existing copyrighted Excel tender model into a purpose-built desktop bidding system while preserving the underlying calculation logic, protecting your IP, and making the workflow faster and easier to operate. I’ll first map the Excel model’s formulas, inputs, dependencies, and outputs, then rebuild the calculation engine in Python with SQL-backed historical data and a focused desktop interface. The application will generate bids automatically, analyse previous tender performance, and provide side-by-side scenario comparison for quantities, costs, production assumptions, overheads, margins, and other tender variables. I’ll validate the application against your existing Excel model to ensure the calculated results remain consistent before expanding the functionality. I’ll also include input validation, calculation checks, structured data storage, exportable bid outputs, and documentation so the system remains maintainable as your tender process evolves. I’m comfortable signing your NDA before reviewing the copyrighted model and will treat the supplied material as confidential project information. Could you share the Excel model after the NDA so I can map its calculation structure accurately? Regards, Imran A.
$50 AUD in 40 days
6.0
6.0

Hello, The hidden challenge in drill-and-blast bidding is not generating a number, it is making every assumption, historical benchmark, and scenario change traceable enough to support confident decisions. I can help shape a desktop application that centralizes bidding calculations, automatically generates bids, analyzes historical project data, and compares alternative scenarios clearly. Using Software Development with Python, Java, and SQL, I can design a maintainable calculation engine, structured dataset model, import workflow, and reporting interface tailored to your estimating process. We can also define validation rules and audit-friendly outputs so your team can understand how each bid was produced and refine the model over time. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. The next step is to review your current bidding worksheets, calculation rules, and historical data structure, then map the first version together. Should scenario comparisons retain a full audit trail of changed assumptions and show their impact on quantities, costs, margins, and final bid values? Sincerely, Asad A few useful inputs would be your preferred desktop platform, sample bid inputs/outputs, and the scenario variables estimators need to compare. Looking forward to your reply so we can finalize the exact plan.
$50 AUD in 27 days
6.2
6.2

Hi there, We can develop a desktop-based Drill & Blast Tender Management System, using your existing Excel tender model as the functional and calculation reference. Our approach would be to: Bidding Engine: Convert Excel formulas, pricing logic, cost structures, and business rules into a modular calculation engine for automated bid generation. Historical Data Analysis: Build structured data storage to analyse previous tenders, actual costs, productivity, and project performance. Scenario Comparison: Enable configurable cost assumptions, sensitivity analysis, margin adjustments, and side-by-side bid comparisons. Desktop Application: Develop a user-friendly interface with Python and PySide6/.NET, backed by SQLite or PostgreSQL, with Excel import/export and PDF tender reporting. Validation: Implement calculation-level testing against your existing Excel model to ensure accuracy and consistency. We can begin with a technical assessment of the Excel model, followed by architecture, prototyping, and phased development. We are comfortable signing an NDA before accessing your copyrighted model. Best, Raman | Founder
$50 AUD in 40 days
6.3
6.3

Hi - Nikita here. I understand you need a desktop application focused primarily on streamlining drill and blast tender calculations, with your existing Excel tender model serving as the reference for the software logic. The goal would be to turn the current bidding process into a structured application that can generate bids faster while making scenario comparison and historical analysis easier. I can develop a desktop application that translates the relevant calculation workflows from your Excel model into a maintainable software system. The application can support project and tender inputs, automatic bid generation, historical project data, configurable assumptions, and side-by-side scenario comparison so different pricing or operational assumptions can be evaluated before submitting a bid. I would treat your existing Excel model as the source of truth during the requirements and validation phase, documenting the calculation rules and mapping them into the application's calculation engine rather than simply reproducing the spreadsheet interface. Historical datasets can then be structured so the application can use previous tenders for analysis and comparison. The application will be designed for a straightforward workflow from tender setup through calculation, scenario review, and final bid output. I am also comfortable working under an NDA and treating your copyrighted Excel model and associated business logic as confidential project material.
$50 AUD in 40 days
6.1
6.1

Hi, I can turn the existing Excel tender model into a dedicated desktop application focused on drill-and-blast bidding calculations, keeping the existing calculation logic as the reference while making the workflow faster and easier to manage. I’d structure the application around automated bid generation, historical tender/data analysis and side-by-side scenario comparison, with the calculation engine separated from the UI so the model can evolve without rewriting the core logic. The historical data layer would also be structured for future reporting and analysis. Question 1: Can you provide the existing Excel tender model and confirm whether its formulas and calculation logic should be reproduced exactly in the first version? Question 2: What format is the historical tender data currently stored in, and should users be able to import new historical records directly into the application? Regards, Houssame.
$50 AUD in 39 days
6.6
6.6

Drill-and-blast bids need traceable cost assumptions so scenario comparisons show why a price changes. I'd use C#/.NET for the desktop app, SQL for historical jobs, and a calculation engine separating drilling, explosives, labour and equipment costs. My relevant work includes a C# desktop automation app and a financial valuation platform, though no mining bidding project. Do you have an estimating spreadsheet and past bids to use as the calculation baseline?
$50 AUD in 40 days
5.8
5.8

Hi, I am a desktop application developer with 5+ years of experience building estimating and tendering tools for construction and mining operations. I can develop your drill and blast bidding desktop application with automatic bid generation, historical data analysis, scenario comparison, and integration against your existing Excel tender model logic, happy to sign an NDA before reviewing any of your proprietary materials. I can start as soon as the NDA is in place and deliver a clean, documented application your team can maintain and extend. Looking forward to work with you
$50 AUD in 40 days
6.0
6.0

Your drill-and-blast bidding process deserves fewer spreadsheets, fewer calculation surprises, and considerably less “which version is correct?” detective work. I can develop a desktop application centered on reliable bid calculations, including: • Automatic bid generation from configurable project inputs • Historical dataset import, analysis, and reusable benchmarks • Side-by-side scenario comparison for pricing, production, and cost assumptions • Clear audit trails so every figure is explainable • A practical interface designed for estimators rather than software engineers I’ll structure the application so formulas, assumptions, and pricing rules can evolve as your bidding process grows. The historical analysis can also highlight trends and support more confident decisions on future drill-and-blast opportunities. I’m comfortable translating industry workflows into maintainable desktop software and would focus on accuracy, usability, and a smooth path from project data to finished bid. Portfolio examples of relevant data-driven applications and calculation systems can be provided. Let’s build a tool that makes bidding faster, and gives spreadsheets a well-earned vacation. Best regards
$50 AUD in 19 days
5.5
5.5

I’m a Software / Data Engineering specialist with 13+ years of experience developing calculation-driven desktop applications, data-analysis tools, automation systems and decision-support software. I can build a practical bidding application focused specifically on drill-and-blast project calculations, with a clear workflow from project inputs through cost calculation, scenario analysis and final bid generation. The application can include: • Automated bid calculation and generation • Historical project database and analysis • Scenario comparison for different assumptions • Drilling, blasting, labour, equipment and material cost inputs • Mobilisation, overhead, contingency and margin calculations • Editable calculation rules and assumptions • Project/quote history and reusable templates • Exportable professional bid reports • Validation checks to reduce calculation errors • A simple desktop interface designed for fast estimator use I’ll structure the calculation engine separately from the interface so your bidding rules can be maintained and expanded without rebuilding the entire application. Historical data can also be used to compare previous projects, identify cost patterns and support future estimates. Before development, I’d map your existing bidding workflow and historical dataset so the software reflects your actual estimating methodology rather than a generic construction calculator.
$50 AUD in 150 days
5.3
5.3

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