Building a transparent bidding platform for construction projects
Time saved on contractor outreach and bid coordination
60%Transparency gained in bid visibility and contractor selection
100%Range of projects covered
30+ trade categoriesTHE CHALLENGE
How to streamline contractor bidding and improve transparency in construction projects?
Biderator is a U.S.-based construction technology startup founded in 2017 by Vahid Walker, a construction professional with over 20 years of industry experience. Frustrated by overpriced estimates, vague timelines, and prolonged negotiations, Walker set out to build a transparent digital auction system to streamline how general contractors (GCs) and subcontractors (subs) connect and compete for jobs.
The goal: create a centralized platform that allows project managers to post jobs and receive live bids, while giving contractors full visibility into the bidding process. Walker envisioned a system that simplifies procurement, removes guesswork from pricing, and encourages honest competition.
To bring this idea to life, Biderator partnered with Relevant Software to design and develop the platform from the ground up. The first version had to manage real-time bid flows, support location-based contractor discovery, and handle multiple active projects per user—all within a tight timeline and budget.
Vahid WalkerFounder of BideratorWe needed skilled staff and no downtime, which is what they’ve delivered. Relevant Software’s flexibility, communication, and technical leadership added real value to the project.
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Book a free consultationTHE SOLUTION
A digital auction platform built for speed, accuracy, and full visibility
Project creation & live updates
Our team built functionality that allows managers to create, edit, and manage projects in real time. The system supports live updates, scope adjustments, and document uploads, automatically notifying all participating contractors about changes.
Built-in RFI channels
We integrated a request-for-information (RFI) channel into each project. This feature allows contractors and managers to communicate directly, clarify expectations, and resolve scope issues without switching tools.
Transparent bidding engine
Our specialists designed a custom bidding mechanism that displays the live high/low bid range and total number of submissions. Contractors submit and revise bids alongside this data, creating a competitive yet fair environment.
Location-based contractor listings
Our engineers built a location-based system that shows subcontractors near the project site. This helps general contractors quickly find local teams who understand the area’s building codes, materials, and deadlines.
THE RESULT
60% faster project turnaround
Biderator helped general contractors cut coordination time by centralizing communication, bids, and project updates in one place. With fewer emails and no need for follow-up calls, clients managed auctions and bid reviews faster, often completing selection cycles in half the time.
100% bid visibility for smarter decisions
Each project displayed real-time high/low bid ranges and the total number of offers, allowing contractors to benchmark proposals instantly. This full transparency reduced overbidding, supported fair competition, and helped general contractors make quicker, data-driven hiring decisions.
Better contractor matches across 30+ trades
Subcontractors built trust through profile galleries, trade-specific filters, and verified reviews. General contractors used these tools to evaluate fit before awarding work. As a result, clients reported fewer disputes, stronger work alignment, and more reliable job performance.
THE CLIENT’S REQUEST
- Build a scalable MVP for a construction tendering platform
- Simplify GC-subcontractor coordination
- Provide end users with full bid visibility
- Design for future features: bonuses and internal payment tools
WHAT WE DID
✓ Delivered a live bidding MVP in just 4 weeks
✓ Built project dashboards, real-time messaging, and filtered listings
✓ Enabled real-time high/low bid display and public count of bids per project
✓ Created a scalable backend with support for token systems and referral logic
Vahid WalkerFounder of BideratorWe wanted to build a scalable web platform that simplifies the tendering process. Relevant Software helped us create a solution that supports transparent bidding, feedback, and contractor discovery — all in one place.
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