Mintra’s OCS HR is a crew management platform used by shipping and energy companies to plan and manage their workforce across ships and installations worldwide. The full system was redesigned — used daily by planners scheduling crew, ship masters managing their vessels, and individual crew members checking their own records.
What changed because of the work.
workflow efficiency
audit findings, year on year
workers use Trainingportal
The things I designed and shipped on this project.
The problem, what I designed, and the result.
Planners, ship masters and crew use OCS HR every day across ships and installations worldwide. In safety-critical industries, staffing errors have real operational and safety consequences.
Redesigned the full system — shift planner, absence management, crew search, certificate tracking, and compliance monitoring.
Built for 2.2 million seafarers and energy workers: planners can find a qualified replacement quickly, ship masters can see at a glance that their roster is compliant, and crew know when a certificate renewal is coming.

Three distinct user types interact with OCS HR, each with fundamentally different needs:
The existing system served none of them well. It was dense, hard to read, and slow to act on. Finding a replacement for someone who called in sick required navigating multiple screens with no clear structure. Certificate tracking was buried. The graphical planner — the screen planners lived in — was the most-complained-about part of the product.
The graphical planner is the heart of OCS HR: a visualisation of who is assigned to which vessel, in which role, and when. Getting this right was the highest-priority design problem.
The fundamental issue: planners need to see different things depending on their planning horizon. What’s useful when planning for the next three days is completely different from what’s useful when planning quarterly rotations.
Four time views were designed — each calibrated to show the right level of detail for that planning context:
Each view shows different data density and uses different visual encoding — the 3-day view emphasises individuals and positions; the 12-month view emphasises trends and gaps at fleet level.
When a crew member can’t make their rotation, the planner needs a replacement quickly. In the old system, this was an unstructured process with too many places to get lost.
It was redesigned as a clear four-step sequence:
Each step is distinct, the user always knows where they are in the process, and there’s no ambiguity about what to do next.
Maritime employment is heavily regulated — crew members need current certificates for specific roles, and vessels need compliant rosters. The old certificate tracking interface made it hard to see what was missing or expired without drilling into individual records.
The certificate view was redesigned to show compliance status at a glance: which crew members have current certificates for their assigned roles, which have expiring certificates requiring action, and which have gaps that need to be resolved before their next rotation. Colour-coded indicators and clear timelines replaced the dense table that required reading across multiple columns to understand any individual’s status.

Finding the right replacement requires filtering by multiple criteria simultaneously — qualification type, availability window, contract type, home location, and sometimes vessel familiarity. Crew search was redesigned with a proper filtering interface that surfaced these dimensions clearly, so planners could narrow down a long crew pool to a relevant shortlist without running multiple separate searches.

For a platform used by 2.2 million seafarers and energy workers in safety-critical industries, usability isn’t just about efficiency — it’s about reducing the risk of staffing errors with real operational and safety consequences. A planner who finds a qualified replacement quickly, a ship master who sees at a glance that their roster is compliant, a crew member who knows their certificate renewal is coming — these are the outcomes the redesign was built to produce.










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