Express Training - Develop Scalable and Secure APIs

Very demanding course · Expertise required

$6,300

  • 4 days
  • Onsite
  • 10 people max.
Ref: SVT716
10 people max.
$6,300
In-company rate: from $10,710 for the whole teamExpertise rate: $1,575 per day, reflecting the difficulty level
On-site and certification exam on quote
4 days
Onsite

Don't let this gap widen

Why this program matters

  • Without advanced Express expertise, your APIs saturate at 1000 req/s, causing 30% customer churn due to latency frustrations.

  • OWASP security breaches expose 40% of user data, generating GDPR fines up to 4% of revenue.

  • Manual deploys fail 70% of the time, delaying product launches by weeks.

  • Unoptimized performance inflates cloud costs x3, AWS bills explode.

  • Competitors on Next.js/Express scale 10x better, leaving you 25% market share behind.

  • Invest 28h to avoid 50k€ annual losses, transform vulnerabilities into competitive advantages tomorrow.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

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

41,305 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.

Express training objectives

  • Design scalable RESTful and GraphQL API architectures with Express.
  • Implement custom middlewares for authentication and advanced logging.
  • Optimize performance via clustering, Redis caching, and load balancing.
  • Integrate unit and integration tests with Jest and Supertest.
  • Deploy Express applications on Docker and Kubernetes in production.
  • Manage errors and OWASP security with rate limiting and Joi validation.
  • Rapid prototyping of interoperable microservices.

Program

Express curriculum: 4 modules over 4 days

Module 1 : Advanced Routing and Middlewares: Structuring Robust APIs (Express Router, Helmet, CORS)

Dive into refactoring your routing with Express Router for modular APIs, configure custom middlewares for JWT authentication and structured logging with Winston, complete exercises on real e-commerce cases, build a secure user API prototype, test data flows live, gain fluidity and scalability from the first session.

Module 2 : Performance and Optimization: Accelerate Express (Clustering, Redis, Compression)

Master native Node clustering for multi-core usage, integrate Redis for intelligent caching and distributed sessions, apply Gzip compression to heavy APIs, simulate loads with Artillery to identify bottlenecks, optimize concrete analytics dashboard cases, generate before/after performance reports, feel the immediate acceleration of your apps.

Module 3 : Security and Testing: Fortify Your APIs (Rate Limiting, Joi, Jest/Supertest)

Strengthen security with Express-rate-limit rate limiting and strict Joi validation, implement OWASP top 10 protections via dedicated middlewares, write end-to-end tests with Supertest and Jest, challenge SQLi/XSS attack scenarios on vulnerable APIs, produce a test suite with 90% coverage, validate defenses in groups, leave with an impenetrable API.

Module 4 : Deployment and Microservices: Production-Ready (Docker, Kubernetes, PM2)

Containerize your Express apps with multi-stage Docker, orchestrate on Kubernetes for auto-scaling, deploy via PM2 in cluster mode, integrate CI/CD GitHub Actions for microservices, migrate a monolith to decomposed services live, generate production-ready Helm charts and manifests, celebrate zero-downtime deployment, launch your projects with confidence.

How Express skills are assessed

  • Daily interactive quizzes on key concepts.
  • Graded practical exercises with real-time feedback.
  • Final project: Complete API deployed, evaluated on performance and security.

How the Express course is taught

  • 80% hands-on pedagogy via collaborative Zoom workshops.
  • Real cases from Fortune 500 companies adapted to your needs.
  • Resources: private Git repo, unlimited replay videos.

Express training: access and practical arrangements

The Express Training - Develop Scalable and Secure 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.

Equipment required

For the smooth delivery of the Express Training - Develop Scalable and Secure APIs 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 Express Training - Develop Scalable and Secure APIs 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 Express 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

Express: frequently asked questions

Which tools are used in Express Training training?+
Hands-on work runs on express Router, helmet, CORS, clustering, redis and compression. Those tools come from the Express Training program itself, delivered on site over 4 days, so participants practise on the stack they will use at work.
What can participants do after Express Training training?+
They can design scalable RESTful and GraphQL API architectures with Express, implement custom middlewares for authentication and advanced logging and optimize performance via clustering, Redis caching, and load balancing. Those are the stated objectives of the Express Training program at Expert level, checked by the end-of-session assessment.
What does the Express Training program cover, day by day?+
Day 1: Advanced Routing and Middlewares: Structuring Robust APIs (Express Router, Helmet, CORS). Day 2: Performance and Optimization: Accelerate Express (Clustering, Redis, Compression). Day 3: Security and Testing: Fortify Your APIs (Rate Limiting, Joi, Jest/Supertest). Day 4: Deployment and Microservices: Production-Ready (Docker, Kubernetes, PM2). The Express Training program runs over 4 days, delivered on site.
How is Express Training training assessed?+
Assessment relies on daily interactive quizzes on key concepts, graded practical exercises with real-time feedback and final project: Complete API deployed, evaluated on performance and security. Learni issues a completion certificate together with the individual assessment report at the end of the Express Training program, which an L&D team can file as evidence.
How much does Express Training training cost per participant?+
Express Training training costs $6,300 per participant. For an in-company team, the flat rate starts at $10,710 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 Express Training training take?+
4 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 Express Training 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 Express Training training?+
Advanced mastery of Node.js, JavaScript ES6+, intermediate Express, MongoDB/PostgreSQL databases, Git.
Is a certificate issued after Express Training 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 Express Training 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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