Make the experience simple for both sides
Workers needed to discover and apply for suitable shifts quickly. Employers needed to post roles, manage applicants, and confirm staffing without dealing with complex admin screens.
Project Opus
A flexible-work platform for matching workers, managing shifts, and reducing staffing coordination.
Scellus designed and developed a workforce operations platform for shift discovery, worker matching, scheduling, appraisals, payments, notifications, and reporting.
Opus · Malaysia and Singapore · 3 months
2 weeksPrototype deliveredA working prototype was delivered for early validation.
3 monthsProject durationThe full platform was delivered over a 3-month engagement.
37%Reported conversion liftReported increase in conversion rate after launch.
85%Reported matching success rateReported success rate for matching workers to suitable shifts.
200%User growth supportedCloud infrastructure supported user growth within the first 6 months.
Project Snapshot
A workforce operations platform for flexible staffing.
Opus needed a platform that could support flexible staffing across Malaysia and Singapore: shift discovery, worker matching, scheduling, appraisals, payments, notifications, and reporting. Scellus designed and developed the product over 3 months, with a working prototype delivered within 2 weeks.
The Problem
Flexible staffing breaks when the workflow lives in spreadsheets and chat threads.
For workers, flexible work only works when opportunities are easy to find, clearly described, and simple to apply for.
For employers, flexibility creates a different problem. They need reliable workers, with the right skills, available at the right time, for the right shift.
Without a proper system, the workflow quickly becomes messy. Shift requirements are posted manually. Workers are screened through scattered messages. Availability is hard to confirm. Updates are missed. Worker quality is difficult to track. Employers have limited visibility into shift fulfilment and performance.
Opus needed a platform that could make flexible staffing easier to manage on both sides of the marketplace.
- Shift requirements were handled manually
- Workers were screened through scattered messages
- Availability was difficult to confirm
- Updates and reminders were easily missed
- Worker quality was hard to track consistently
- Employers lacked visibility into shift fulfilment and performance
The Challenge
Building Opus meant solving the full staffing workflow, not just the front-end experience.
Improve matching quality
The system needed to match workers to shifts based on practical criteria such as skills, experience, location, availability, and past appraisal data.
Reduce manual coordination
Shift work involves reminders, updates, confirmations, changes, and follow-ups. These workflows had to be handled inside the platform instead of being pushed into WhatsApp threads or spreadsheets.
Build trust into the platform
Both workers and employers needed enough context before committing. Profiles, ratings, and appraisals became important parts of the trust layer.
Prepare the platform for growth
Opus needed a cloud-based architecture that could support more users, more listings, more activity, and more operational data over time.
What We Built
A staffing workflow system, not just a job board.
Scellus designed and developed the core platform for Opus, covering the full workflow from discovery to matching, scheduling, appraisal, payment, and reporting. The result was a product that helped workers find better-fit opportunities and helped employers manage flexible staffing with less manual coordination.
Platform Features
The product connected every major step in the staffing workflow.
- 01
Worker and company profiles
Workers could maintain profiles showing their skills, experience, ratings, and past appraisals. Employers could review candidates with more context before assigning or approving them for shifts. Company profiles also gave workers more visibility into who they were working with and what kind of roles were available.
- 02
Shift discovery and matching logic
The platform helped workers find suitable opportunities using matching logic based on skills, experience, location, availability, and appraisal data. For employers, this reduced the time spent filtering irrelevant applicants and improved the chances of finding better-fit workers.
- 03
Automated scheduling and alerts
The scheduling layer supported shift assignments, confirmations, reminders, and real-time notifications. This reduced the admin burden between 'we need someone' and 'the shift is confirmed.'
- 04
Appraisal and rating system
After each shift, employers could rate and review workers. This created a feedback loop that helped surface reliable performers and improve future matching. Workers also benefited from a clearer reputation system, allowing them to build trust over time.
- 05
Payment integration
The platform supported payment flows so employers could pay workers through the app. This helped make Opus a more complete staffing workflow, rather than just a listing and application tool.
- 06
Reporting and analytics
Employers could review activity, workforce performance, shift fulfilment, and operational trends. This gave companies more visibility into staffing performance and helped turn flexible hiring into something measurable.
- 07
Secure, scalable infrastructure
The platform was built with secure authentication, data protection, API integrations, and scalable cloud infrastructure. The goal was to support growth without compromising platform stability or user trust.
Our Approach
Start with the workflow, then build the product.
Scellus approached Opus as an operations platform, not just a marketplace.
The work started with the core flow: how a worker finds a shift, how an employer posts a requirement, how matching happens, how both sides are notified, how a shift is confirmed, and how performance is tracked after the work is done.
From there, we moved quickly into product design and development.
A working prototype was delivered within 2 weeks, allowing the team to validate the core experience early before expanding into the full application build.
- 01
Product experience
Designing the worker and employer flows so users could search, apply, post, review, and manage shifts with minimal friction.
- 02
Matching and workflow logic
Structuring how worker data, shift requirements, ratings, location, availability, and appraisal history could be used to improve matching quality.
- 03
Operational automation
Building notifications, scheduling, confirmations, reminders, payments, and appraisals into the product workflow.
- 04
Platform foundation
Designing the architecture, APIs, authentication, data handling, and cloud infrastructure needed to support production usage.
In their words
Before using Opus, our HR team had to coordinate guard assignments manually across phone calls, WhatsApp messages, and spreadsheets. It was easy to miss updates, especially when shifts changed at the last minute. The platform gave us a clearer way to match available guards to the right assignments, track performance after each shift, and reduce the amount of back-and-forth needed to confirm manpower.
The Outcome
From job platform to staffing workflow system.
Opus launched with the foundation of a flexible-work platform that could support both sides of the marketplace. Workers gained a simpler way to discover relevant opportunities, apply for shifts, and build a track record through ratings and appraisals. Employers gained a more structured way to post shifts, evaluate workers, manage scheduling, track performance, and reduce manual coordination.
- 01
Prototype delivered within 2 weeks
The early working prototype gave the team a way to validate the core experience before expanding into the full build.
- 02
Full project delivered over 3 months
The engagement covered product design, platform architecture, workflow logic, development, and production readiness.
- 03
37% increase in conversion rate
Opus reported a conversion lift after launch as the platform reduced friction across worker and employer flows.
- 04
85% matching success rate
Matching logic based on skills, experience, location, availability, and appraisal data helped improve staffing fit.
- 05
200% user growth supported
Cloud infrastructure supported user growth within the first 6 months while keeping the platform ready for more listings, users, and activity.
- 06
No reported data breaches since launch
The platform foundation included secure authentication, data protection, API integrations, and careful infrastructure design.
Why This Matters
The real work was not building an app.
The value of Opus was in turning a messy staffing process into a structured operational system.
The platform connected multiple moving parts: workers, employers, shift listings, matching logic, scheduling, notifications, appraisals, payments, reporting, security, and scalable infrastructure.
That is the kind of product work Scellus focuses on: systems that sit inside real business operations, reduce manual coordination, and make daily workflows easier to run.
- Workers
- Employers
- Shift listings
- Matching logic
- Scheduling
- Notifications
- Appraisals
- Payments
- Reporting
- Security
- Scalable infrastructure
Opus was not just a job board. It was the operational layer behind flexible staffing: matching, scheduling, notifications, trust, payments, and reporting.
Building a platform around a messy workflow?
Scellus helps teams turn manual processes into production-ready software systems.