How Sattva EngiTech Built a Custom HR Software with Fuzen (Case Study)

When your business bills clients by the manhour, timesheets aren't an HR formality , they're your revenue pipeline. Every missed entry, every delayed approval, every manual consolidation error is money left on the table.

That's exactly the problem Sattva EngiTech, an engineering services company in Navi Mumbai, faced. Their engineers work on client projects across the oil & gas and process industry , design engineering, flow assurance, piping, safety studies and every hour is billed. Their HR team needed a system where timesheet submissions flowed directly into project billing. Not a generic attendance tracker. Not a one-size-fits-all HRMS. A system that matched how they actually worked.

They evaluated Keka HR, greytHR, Zoho People, and other popular HRMS platforms in India. None of them offered the flexibility Sattva needed and also not without expensive customization or enterprise plans that didn't make sense for a growing SME.

So they built their own on Fuzen.

Watch: Sattva EngiTech's HR Manager on Why They Chose Fuzen

Pooja Pagare, HR Manager at Sattva EngiTech, shares how Fuzen transformed their HR and timesheet processes.

"Before Fuzen, we struggled to find a system that was flexible yet easy to manage." - Pooja Pagare, HR Manager, Sattva EngiTech

The Problem: When Timesheets Are Your Billing Source of Truth

Sattva EngiTech provides comprehensive technical services to the process industry. Their team of engineers is deployed across client projects , from LNG terminal process engineering to simulations and transient analysis. Billing is straightforward: clients pay for manhours. The complexity is in tracking those manhours accurately.

Here's what the workflow looked like before Fuzen:

• Engineers filled timesheets in Excel spreadsheets , logging hours per project, per client, per day

• Timesheet approvals happened over email , managers would review attached Excel files and reply with corrections or approvals

• Leave requests were handled verbally or over email , no central record, no audit trail

• At billing time, someone had to manually consolidate all the Excel sheets, cross-check against project assignments, and prepare invoicing data

• Errors were common , wrong project codes, missed entries, version conflicts when multiple people edited the same file

The real cost wasn't just administrative time. It was revenue leakage. When your billing depends on accurate timesheet data and that data lives in scattered Excel files with no structured approval workflow, errors are inevitable , and every error either underbills a client or delays an invoice.

Why Keka HR, greytHR, and Zoho People Didn't Work

Sattva didn't jump straight to building custom software. They did what most businesses do first , they evaluated the market leaders.

Keka HR, greytHR, and Zoho People are among the most popular HRMS platforms in India, and for good reason. They handle attendance, leave management, payroll, and employee records well. But Sattva's requirements weren't standard.

Here's where the off-the-shelf options fell short:

1. Fixed timesheet formats

Most HRMS platforms treat timesheets as an attendance feature , clock in, clock out. Sattva needed timesheets that captured hours per project, per client, with custom fields for billing codes, project phases, and task categories. The standard timesheet modules couldn't accommodate this without heavy workarounds.

2. No direct mapping to billing

In Sattva's workflow, a submitted and approved timesheet entry is a billable line item. They needed the system to understand that 8 hours logged on Project X for Client Y at Rate Z equals a specific billable amount. Generic HRMS tools don't think in billing terms , they think in HR terms.

3. Rigid approval workflows

Sattva had a specific approval chain: engineer submits → project manager reviews → HR processes → finance gets visibility for invoicing. The standard HRMS approval flows (employee → manager → done) didn't match their multi-step process.

4. Per-user pricing that punishes growth

Most HRMS platforms charge per employee per month. For a growing engineering company adding team members with each new project, these costs compound quickly. And every new user needs full access to submit timesheets , you can't cut corners on who gets a seat.

5. Customization costs more than the software

The platforms that could offer the flexibility Sattva needed required enterprise-tier plans or professional services engagements for customization , quoting costs that didn't make sense for an SME.

The core gap: HRMS vendors optimize for generic HR workflows. Sattva needed an HR system that was also a billing instrument. That's a fundamentally different product, and no amount of configuration in a fixed-feature tool was going to bridge that gap.

Built Exactly to Specification

The decision to build came on a strong recommendation from Sattva's CEO, Mr. Vishal Mundhe, who had prior working experience with the Fuzen team and knew the platform could deliver.

Fuzen's approach was different from a traditional software development project. Instead of months of requirements gathering, wireframing, and development cycles, the Fuzen team worked with Sattva to map their existing workflows and then built the application to match , not the other way around.

Here's what was built:

Timesheet Module

• Engineers submit daily hours against specific projects and clients

• Each entry includes project code, client name, task category, and hours worked

• Submissions are structured , no more free-form Excel entries with inconsistent formatting

Approval Workflows , Online, Not Over Email

• Timesheet submissions trigger a structured approval chain: project manager → HR → finance visibility

• Leave requests go through a formal online process , no more verbal requests or email threads

• Every approval has a timestamp, approver name, and audit trail

Project-Client Billing Integration

• Approved timesheet hours are automatically mapped to billable manhours per project and client

• Reports can be generated by project, client, time period, or engineer

• No more manual consolidation from multiple Excel files

Standard HRMS Features

• Employee self-service: profiles, leave balances, payslip access

• Leave and attendance management , centralized and policy-compliant

• Document management for HR records

What About Cost?

This is where the story gets compelling for any SME evaluating HR software:

• One-time build cost , a small fraction of what the HRMS vendors quoted for equivalent customization

• Yearly hosting fee , predictable, flat, no surprises

• No license fees , no per-user charges, no per-module add-ons, no feature paywalls

• No vendor lock-in , the system is theirs, built for their workflow

Compare that to a typical HRMS subscription: per-employee monthly fees × headcount × 12 months × every year, forever , plus implementation fees, plus charges for any customization outside the standard feature set.

"Fuzen has significantly improved our HRMS module and internal processes. I highly recommend them to any business looking for a cost-effective, powerful, and user-friendly custom software solution." , Pooja Pagare, HR Manager, Sattva EngiTech

Before and After: What Changed

The Impact

Since moving to Fuzen, Sattva EngiTech's HR and billing operations have fundamentally changed:

• Timesheet accuracy improved significantly , structured digital submissions replaced error-prone Excel files, reducing billing disputes and underbilling

• Approval cycles shortened , what used to take days of email back-and-forth now moves through a defined workflow with clear accountability

• HR team freed from data wrangling , instead of spending days consolidating spreadsheets for billing, the team can focus on people management

• Invoicing got faster , project-wise billing reports are generated directly from approved timesheets, cutting the time from timesheet submission to client invoice

• New projects don't create new overhead , adding a new client or project doesn't mean creating new Excel templates or retraining the team on a new format

• Complete audit trail , every submission, approval, and modification is logged, which matters for both internal governance and client-facing billing transparency

The Fuzen team , particularly Girish, Anjali, and Mayur , were hands-on throughout the process, resolving queries promptly and ensuring the system matched Sattva's requirements at every step.

Does This Sound Like Your Business?

Sattva EngiTech's story isn't unique to engineering services. Any business that bills by time , consulting firms, staffing agencies, IT services companies, architecture firms, legal practices, field service providers , faces the same fundamental problem: the gap between how off-the-shelf HR software handles timesheets and how your billing actually works.

If you've found yourself in any of these situations, the pattern should feel familiar:

• Your HRMS handles leave and attendance fine, but timesheets don't connect to billing

• You've looked at Keka, greytHR, Zoho People, or similar tools and found they're close but not quite right

• The customization you need would cost more than the software itself

• You're still using Excel for the workflows that matter most because no tool fits

• Per-user pricing makes you think twice about giving every team member access

The lesson from Sattva's experience is straightforward: when off-the-shelf software can't match your workflow, you don't have to compromise. You can build exactly what you need , without developers, without enterprise budgets, and without the 6-month implementation timelines that traditional custom software demands.

Fuzen is an AI-powered platform that builds full-stack business applications from a description of your workflow. You describe how your business works , your approval chains, your data structures, your reporting needs ,and Fuzen generates the application. No code. No developers. And at a cost that makes sense for small and mid-size businesses.

Frequently Asked Questions

Can Fuzen build a custom HRMS for my business?

Yes. Fuzen builds full-stack applications from a description of your workflow. Whether you need a basic HR system with leave and attendance or a complex HRMS with timesheet billing, project tracking, and multi-level approvals, Fuzen can build it to your exact specification.

How is Fuzen different from Keka HR or greytHR?

Keka and greytHR are fixed-feature HRMS products , you use the features they've built, configured within the options they provide. Fuzen is a platform that builds your HR software. You get exactly the modules, workflows, and data structures your business needs, with no feature paywalls or per-user pricing.

How long does it take to build an HRMS with Fuzen?

Most HRMS applications are up and running within weeks, not months. The AI generates your application structure, database, pages, workflows, and the Fuzen team works with you to refine it until it matches your process exactly.

Can I connect timesheets to project billing in Fuzen?

Absolutely. This is exactly what Sattva EngiTech built. Timesheet entries can be linked to projects, clients, and billing rates, with approved hours automatically flowing into billable manhour reports. The system can be structured to match however your billing works.

Is Fuzen suitable for small businesses with 10–50 employees?

Yes, and that's the sweet spot. Enterprise HRMS tools are overkill and overpriced for businesses this size. Fuzen gives you enterprise-grade functionality (custom workflows, role-based access, approval chains, reporting) at a cost structure designed for SMEs: a small one-time build cost plus yearly hosting, with no per-user license fees.

How much does it cost to build an HRMS with Fuzen?

Pricing depends on complexity, but the model is fundamentally different from SaaS: you pay a one-time build cost and a yearly hosting fee. There are no per-user charges, no per-module add-ons, and no annual subscription that increases with headcount. For most small businesses, the total cost over 3 years is a fraction of what a comparable HRMS subscription would cost.