Free Download System Design Masterclass Building Financial SystemsPublished 8/2026
MP4 |
Video: h264, 1920x1080 |
Audio: AAC, 44.1 KHz, 2 Ch
Language: English + subtitle |
Duration: 16h 9m |
Size: 17.15 GB
Learn system design through payment systems, distributed systems, scalability, reliability, and the Architect's Mindset
What you'll learnDesign a production-grade payment system using idempotency, concurrency control, ledgers, and failure-handling patterns.
Apply optimistic locking and balance sharding to protect financial data under high concurrency and scale.
Design reliable microservice workflows using Sagas, transactional outbox, event-driven architecture, and dead-letter queues.
Design reconciliation and recovery mechanisms that detect and resolve inconsistencies across financial systems.
Evaluate architecture trade-offs and evolve a payment system from low traffic to 100 million transactions.
Develop an Architect's Mindset focused on failure modes, trade-offs, resilience, correctness, and designing for real-world constraints.
Build an Architect's Vocabulary to communicate system designs, failure modes, patterns, and architectural decisions with precision.
RequirementsBasic understanding of software development and backend systems
Familiarity with APIs, databases, and common software architecture concepts
Some programming experience is recommended
No prior experience designing financial systems is required
No prior FinTech experience is required
An interest in distributed systems, scalability, reliability, and system design is helpful
DescriptionThis course contains the use of artificial intelligence.
System design is not about memorizing boxes, arrows, or technology names.It's about understanding what can go wrong, identifying the constraints, making trade-offs, and designing a system that remains correct when reality gets messy.
This course is for engineers who want to become better system designers.Rather than teaching system design as a collection of disconnected concepts, this masterclass takes you through a series of realistic engineering simulations where the architecture evolves as new problems appear.
And we use
financial systems as the case study that makes the learning rigorous.Why financial systems?Because money is one of the most unforgiving things to manage in software. A duplicate payment, lost transaction, incorrect balance, inconsistent state, or failed distributed workflow can have serious consequences. The constraints of financial systems force us to think carefully about correctness, consistency, concurrency, failures, recovery, and scale.
If you can design a system that handles these problems correctly, you develop skills that transfer far beyond FinTech.
What makes this course different?Many system design resources focus on the final architecture.
This course focuses on
the reasoning that gets you there.You will see the system evolve from a simple payment API into a large-scale financial platform. At every stage, we ask
What breaks next?Why does it break?What are our options?What trade-off are we making?How will the system behave when something fails?Instead of simply presenting a "correct answer," the simulations expose the
Junior Trap-the intuitive solution that looks reasonable at first-and then build toward the
Staff Solution, explaining why a more resilient architecture is necessary.
The course material is deliberately structured around this distinction between memorizing architectures and understanding the process behind architectural decisions.
You will explore topics including
- Designing production-grade payment APIs
- Idempotency and safe retries
- Concurrency control and optimistic locking
- Pessimistic locking and its trade-offs
- Double-entry bookkeeping and financial ledgers
- Balance management and consistency
- CQRS-style separation of financial truth from fast reads
- Distributed transactions
- Saga patterns and compensating transactions
- Transactional Outbox
- Event-driven architectures
- At-least-once delivery and idempotent consumers
- Ordering and message processing
- Failure handling and resilience
- Reconciliation and financial correctness
- Auto-healing and recovery strategies
- Scaling from thousands to millions of transactions
- Sharding and partitioning
- Architectural trade-offs at increasing scale
The course also goes beyond individual technologies and patterns.
Develop an Architect's MindsetThroughout the simulations, you'll repeatedly learn to shift your thinking
From
components → failure modesFrom
best case → worst caseFrom
"How do I make this work?" → "How does this fail?"From
adding technology → understanding constraintsFrom
preventing every failure → designing for recoveryThis mindset is one of the central themes of the course.
Great systems aren't defined by never failing; they're defined by making the right trade-offs, recovering gracefully, and preserving correctness when failures inevitably occur.Build an Architect's VocabularyYou'll also build the vocabulary needed to communicate system designs precisely.
Terms such as
idempotency, optimistic locking, Saga, orchestration, compensating transaction, transactional Outbox, at-least-once delivery, reconciliation, circuit breaker, retry storm, poison message, and head-of-line blocking are not presented simply as definitions.
You'll learn why these concepts exist, what problems they solve, what trade-offs they introduce, and when they become useful.
The goal isn't to memorize terminology.
It's to become comfortable
thinking and communicating like an architect.The goalBy the end of this masterclass, you shouldn't simply have a list of system-design patterns memorized.
You should be able to look at a system and ask better questions.
What happens if this service crashes?What happens if this request is retried?What happens if two requests arrive at the same time?What happens if the network fails?How will we detect that something went wrong?How will the system recover?What trade-off are we making?And most importantly
How do we keep the system correct when reality doesn't behave the way our happy-path diagram assumes?That's the Architect's Mindset.
And that is what this masterclass is designed to develop.
This course contains a promotion.
Who this course is forSoftware engineers preparing for system design interviews, especially senior-level interviews
Backend engineers moving from feature implementation toward production system design
Senior engineers and tech leads strengthening their distributed systems and architecture skills
Engineers preparing for Staff Engineer or Architect-level responsibilities
Engineers interested in payment systems, financial systems, scalability, reliability, and distributed architecture
Developers who prefer learning system design through realistic scenarios, failure modes, trade-offs, and simulations
Not primarily for complete programming beginners looking for an introduction to software development
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