Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
1 seat held for the next session
Request a call back and an advisor reaches you within 24 business hours, Monday to Saturday.

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.
Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.
Don't let this gap widen
Without mastering ServiceStack, 75% of .NET REST APIs become bottlenecks, doubling development time and generating recurring downtime.
Companies lose an average of 40 000 € per project in error and refactoring costs, with scalability incidents impacting 20% of monthly revenue.
Your team burns out on constant debugging, exposing your career to project failures and your company to fatal loss of competitiveness.
Every month without expertise equals thousands of euros wasted and increased vulnerability to agile competitors.
General presentation of ServiceStack and its advantages; Installation and configuration of a ServiceStack project; Architecture of a ServiceStack service (DTO, services, hosts); Getting started with the API and creating your first endpoints; Handling requests/responses (supported formats, JSON, XML, etc.)
Connection to a database with OrmLite; Performing CRUD operations with ServiceStack; Managing middlewares and processing pipelines; Setting up authentication (JWT, OAuth, API Key) and authorization; Validation strategies and error handling; Unit and integration tests on services
Performance optimization (caching, compression, batching); API versioning and migration management; Automated documentation with OpenAPI/Swagger; Secure exposure of your APIs on the Internet (best practices, rate limits, attacker protections); Integration with other tools and microservices; Deployment and monitoring (tools, logs, monitoring, adaptation to cloud or on-premise infrastructure)
The Training: Mastering ServiceStack: .NET Framework for High-Performance REST APIs program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
For the smooth delivery of the Training: Mastering ServiceStack: .NET Framework for High-Performance REST APIs program, the following equipment is required:
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
Assessment of skills acquired during the Training: Mastering ServiceStack: .NET Framework for High-Performance REST APIs program is performed through:
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
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30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.