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Nimvola

Works

Casestudies.

From visa automation to a travel marketplace, an AI mobile app to fintech infrastructure — each project shared as a case study with its problem, solution and outcome. Some projects are under NDA.

SaaS · Visa Tech

VisaGate

Problem

VFS appointment slots for visa applications from Türkiye fill within hours; applicants kept missing them through manual tracking.

Solution

We built a 4-service SaaS platform — landing, member panel, admin panel and backend — that watches VFS slots 24/7 with smart slot tracking and sends instant alerts the moment one opens.

Result

Slot alerts in seconds · Smart slot tracking · 4-service architecture

FastAPIPostgreSQLNext.js 16React 19Stripe
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Marketplace · Travel

Hajum.net

Problem

Travel agencies managed hotel and tour-package listings across scattered channels; publishing and moderation were uncontrolled.

Solution

We built an end-to-end travel listings marketplace with an agency panel, credit-based publishing and an admin approval/moderation flow.

Result

Full listing lifecycle · Credit-based publishing · Admin moderation

Next.jsReact 19TypeScriptTailwind
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Mobile · AI Social

Ten Message AI

Problem

An AI-assisted messaging experience needed a scalable mobile API with profiles, verification and notification infrastructure.

Solution

We shipped a production API with profiles, blue-tick verification, Google/Apple sign-in, an AI token system and Firebase push notifications.

Result

Live in production · Google/Apple sign-in · Firebase push

FastAPISQLModelPostgreSQLRedisFirebase
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Fintech · TradingNDA

Existing platform losing the race with 800ms+ order latency and weekly deploys.

Solution

New Go-based order engine, event-sourcing with Kafka, hourly deploys via GitOps.

Result

Order latency: 42ms · Deploy frequency: 22×

GoKafkaPostgreSQLGKEArgoCD
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