Custom Atlassian
apps - built with Forge
We build fully customized Jira & Confluence Cloud apps using Forge – Atlassian’s most modern, secure, and trusted framework.
- Atlassian Platinum Solution Partner & Gold Marketplace Partner
- Forge apps run solely on Atlassian infrastructure
- Compliant with strict security and data handling standards
Customers who trust Seibert Group
Filling the Gaps in Jira & Confluence
We offer services to help you extend, modernize, and simplify your Atlassian Cloud setup.
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🧩 Build What’s Missing
We implement features that Jira and Confluence don’t provide out of the box – fully integrated and tailored to your workflow.
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💸 Replace Costly Scripts
Scripting apps can be expensive and hard to maintain. We replace them with lightweight, secure Forge apps that reduce complexity and cost.
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🔄 Migrate Legacy Systems
Move away from outdated wiki or task tools. We support full migrations into Jira and Confluence Cloud – structured, secure, and with minimal disruption.
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👩💻 Developer Training for Forge
Want to build your own apps? We offer hands-on Forge workshops for developers – so your team can learn how to create secure Atlassian apps in-house.
Why Forge-Based Apps Are Better for You
Forge is Atlassian’s cloud development platform – designed to power apps that run entirely within the Atlassian infrastructure.
Built-In Security
Forge apps run entirely on Atlassian’s infrastructure. No third-party servers, no risky integrations – your data stays protected within the Atlassian ecosystem.
High Availability & Strong Performance
Since Forge apps run where Jira and Confluence run, they benefit from the same reliability and performance – no extra hosting or downtime risks.
Full Control Over Data Access
Forge apps must explicitly declare the permissions they need. This makes it easier for administrators to understand what data the app will access – giving you peace of mind and control.
Runs on Atlassian
Forge apps that don’t connect to external services (no “egress”) may qualify for the Runs on Atlassian badge – even more data control and security.
No Hosting or Maintenance Needed
No servers, no infrastructure overhead, no manual updates. Forge-based apps are fully managed in the Atlassian cloud – you get the benefits without the burden.
Future-Proof by Design
Forge is Atlassian’s go-to platform for cloud development – aligned with their long-term roadmap. Your custom solution stays supported and secure over time.
How Custom Projects Typically Run
From idea to launch in 3 steps
Discovery Call - Get to Know Each Other
Free of chargeStart with a free discovery call to share your vision. It’s a chance for us to get to know each other, talk about your project ideas, and explore how we can help.
Together, we’ll discuss your goals, budget, timelines, and anything else that’s important to your success. No commitment – just an open conversation to see how we can turn your ideas into reality.
Schedule free call
Requirements Workshop - Turn Your Vision Into a Clear Plan
2.000 € per day (excl. traveling costs if on-site)The Requirements Workshop lays the groundwork for development.
We work with you to understand your current setup, identify real needs, and define clear goals. The result: a focused, actionable plan that sets the direction for building your custom solution – with everything aligned before development begins. Small projects may not require a workshop upfront.
Contact us
Custom Solution - From idea to reality
Starting at 5.000 €With a solid plan in place, we turn your ideas into working solutions.
From features and workflows to custom integrations – we build what your team needs, with a collaborative process that keeps you involved at every step.
With 25+ years of experience, we’ve delivered everything from full-scale solutions like Linchpin and Agile Hive to small, high-impact custom features. Whatever the scope, we bring the expertise to make it work for you.
Contact usTrusted Atlassian Custom Dev Partner
Helping teams with smarter, more secure Atlassian solutions.
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25+ Years of Hands-On Experience
We’ve been building custom solutions for a long time – and we’re still just as excited about it. Our 500+ team members at Seibert Group help businesses tackle real-world challenges every day.
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Experienced Atlassian & Google Partner
We’re not just familiar with the tools – we’re certified experts. As an Atlassian Platinum Partner, Gold Marketplace Partner, and Google Premier Partner, we know the ins and outs of both ecosystems.
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Free Discovery Call
Let’s talk – no pressure. In a free, 1-hour Discovery Call, we’ll listen to your ideas, understand your goals, and see if we’re a good fit.
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Security Comes Standard
We take your data seriously. Our ISO 27001 certification means your information is protected to the highest standards – by design.
Seibert Group in Numbers
Employees in 4 companies
Locations worldwide
Mio. USD revenues in 2024
Interested in starting a project?
