Training Dapper - Ultra-High-Performance Backends for Startups

Specialist course · Minimum level required

$3,465

  • 3 days
  • Onsite
  • 10 people max.
Ref: JJD149
10 people max.
$3,465
In-company rate: from $6,290 for the whole team
On-site and certification exam on quote
3 days
Onsite

Don't let this gap widen

Why this program matters

  • Without advanced Dapper mastery, your .NET applications risk critical latencies exceeding 3 seconds, causing 53% user abandonment according to Google benchmarks and inflating cloud costs by 40% through forced scaling.

  • For a startup, this means losing 70% of initial leads to agile competitors, with failure rates doubled according to Startup Genome.

  • Freelancers see their contracts evaporate because clients demand ultra-high-performance backends to survive in a saturated market.

  • Your career stagnates without these certifying skills, blocking promotions or viable business launches.

  • Invest now to avoid these costly traps and propel your business.

Naël GUERIN, Learni trainer · Cybersecurity & project management
Naël GUERIN

Learni trainer · Cybersecurity & project management

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

Trusted by — schools, companies and industrial groups

41,114 programs · 25 countries

  • Aptar
  • ArcelorMittal
  • Equans
  • EDF
  • Ubisoft
  • Microsoft
  • Atos

Every program built with a dedicated engineer

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Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft, Microsoft and Atos.

Dapper training objectives

  • Master multi-table queries and stored procedures with Dapper for high-performance entrepreneurial applications
  • Develop advanced skills in dynamic mapping and batching in a certified professional training
  • Optimize .NET backend performance for startups and freelancers using expert Dapper techniques
  • Implement complex transactions and caching for immediate enterprise scalability
  • Design resilient architectures with Dapper, integrating microservices for agile business creation
  • Deploy secure data-intensive solutions to boost professional competitiveness

Program

Dapper curriculum: 3 modules over 3 days

Module 1 : Advanced Dapper Queries: Multi-Table Optimization and Performance (C#, SQL, Stored Procedures)

Discover expert techniques for executing complex joins and parameterized queries with Dapper through practical exercises on real startup datasets. Analyze SQL execution plans to identify bottlenecks, refactor Entity Framework code to pure Dapper for 5x faster APIs, with live debugging and integrated profiling tools, delivering scalable backends from day one.

Module 2 : Dapper Mapping and Batching: High-Volume Management for Freelancers (Async Tools, Multi-Mapping)

Dive into advanced dynamic mapping, batched operations, and async/await with Dapper, applied to real freelancer cases handling massive data flows. Build processing pipelines for e-commerce startups, test resilience under load with tools like BenchmarkDotNet, generate quantified performance reports, and integrate patterns like ResultSet Splitting for optimized, immediately deployable deliverables.

Module 3 : Dapper Transactions and Scalability: Enterprise Architectures (Microservices, Redis Caching)

Master distributed transactions, unit of work, and caching integration with Dapper for scalable microservices architectures. Through a capstone project simulating a fast-growing startup, implement advanced sharding and connection pooling, secure data with native encryption, evaluate fault-tolerance under stress tests, and produce a complete blueprint with source code, documentation, and cloud deployment plan for your business.

How Dapper skills are assessed

  • Daily interactive quizzes on advanced Dapper concepts with immediate feedback
  • Final practical project evaluated by experts on performance and scalability criteria
  • Qualiopi-certified attestation validating entrepreneurial backend skills

How the Dapper course is taught

  • 100% hands-on with real-world exercises inspired by startups and freelancers
  • Concrete case studies of businesses boosted by high-performance Dapper
  • Live coding sessions in remote format with screen sharing and collaborative debugging
  • Lifetime resources: source code, video replays, exclusive alumni community

Dapper training: access and practical arrangements

The Training Dapper - Ultra-High-Performance Backends for Startups 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.

Equipment required

For the smooth delivery of the Training Dapper - Ultra-High-Performance Backends for Startups program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

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.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training Dapper - Ultra-High-Performance Backends for Startups program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

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.

Enrollment terms and lead times

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.

The Learni story

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.

Our method

How Learni guarantees the quality of your Dapper training

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.

Step 1

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.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training booked

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.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you
Enroll and offer a kit
FAQ

Dapper: frequently asked questions

Which tools are used in Dapper training?+
Hands-on work runs on c#, SQL, stored Procedures, async Tools, multi-Mapping and microservices. Those tools come from the Dapper program itself, delivered on site over 3 days, so participants practise on the stack they will use at work.
What can participants do after Dapper training?+
They can master multi-table queries and stored procedures with Dapper for high-performance entrepreneurial applications, develop advanced skills in dynamic mapping and batching in a certified professional training and optimize .NET backend performance for startups and freelancers using expert Dapper techniques. Those are the stated objectives of the Dapper program at Advanced level, checked by the end-of-session assessment.
What does the Dapper program cover, day by day?+
Day 1: Advanced Dapper Queries: Multi-Table Optimization and Performance (C#, SQL, Stored Procedures). Day 2: Dapper Mapping and Batching: High-Volume Management for Freelancers (Async Tools, Multi-Mapping). Day 3: Dapper Transactions and Scalability: Enterprise Architectures (Microservices, Redis Caching). The Dapper program runs over 3 days, delivered on site.
How is Dapper training assessed?+
Assessment relies on daily interactive quizzes on advanced Dapper concepts with immediate feedback, final practical project evaluated by experts on performance and scalability criteria and qualiopi-certified attestation validating entrepreneurial backend skills. Learni issues a completion certificate together with the individual assessment report at the end of the Dapper program, which an L&D team can file as evidence.
How much does Dapper training cost per participant?+
Dapper training costs $3,465 per participant. For an in-company team, the flat rate starts at $6,290 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.
How long does Dapper training take?+
3 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for Dapper training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before Dapper training?+
Advanced mastery of C#, SQL Server or PostgreSQL, basic usage of Dapper and Entity Framework, professional .NET development experience.
Is a certificate issued after Dapper training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
Does Learni provide the equipment for Dapper training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
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