Curated for this specific career level.
Level path
SRE Foundations
Junior SRE
Build reliable foundations and enough context to contribute safely with guidance.
Concepts explicitly listed in this level.
Concepts span multiple tracks and layers.
Job description signals Typical responsibilities ↓
- Define and improve reliability, latency, capacity, observability, incident response, and operational readiness.
- Automate toil, harden production systems, and create feedback loops through SLOs and postmortems.
- Partner with engineering teams to design systems that fail safely and recover predictably.
- Implement well-scoped tasks with guidance from more senior engineers.
- Write readable code, tests, and documentation for small features or fixes.
- Participate in code reviews, debugging sessions, and team ceremonies.
- Learn the team codebase, delivery workflow, and production support expectations.
Cumulative view includes
Dev / Junior DevSE / Junior SEInfrastructure Engineering / Junior Infrastructure Engineer
Track / layer mastery Concept coverage by layer ↓
Operations
11 concepts
Software
2 concepts
Data
1 concepts
Software
70 concepts
Operations
32 concepts
Management
14 concepts
Product
12 concepts
Data
3 concepts
Theory
3 concepts
Learning scope Concepts by learning area ↓
Specific to this level
Concepts introduced by this level
01
Level concepts
Reliability Foundations
Understand the core vocabulary of resilient systems.
02
Level concepts
Production Signals
Observe and diagnose production systems using telemetry.
03
Level concepts
Distributed Operations
Operate distributed systems under traffic, failure, and consistency constraints.
04
Level concepts
Deployment & Recovery
Ship changes safely and recover when systems fail.
Cumulative level expectation
All concepts expected at this level
01
Inherited path
Coding Foundations
Developers begin by learning to translate requirements into working, readable code.
GPL Software · Programming Languages working Source Code Software · Programming Languages awareness Function Software · Programming awareness Control Flow Software · Programming Array Software · Algorithms & Data Structures Hash Table Software · Algorithms & Data Structures Synchronous Programming Software · Programming Asynchronous Programming Software · Programming Variable Software · Programming State Software · Programming Recursion Software · Programming Stack Software · Algorithms & Data Structures Queue Software · Algorithms & Data Structures Linked List Software · Algorithms & Data Structures Binary Search Software · Algorithms & Data Structures Sorting Software · Algorithms & Data Structures Imperative Programming Software · Programming Declarative Programming Software · Programming Procedural Programming Software · Programming Static Typing Software · Programming Languages Dynamic Typing Software · Programming Languages Type System Software · Programming Languages
02
Inherited path
Developer Tooling
Daily development depends on version control, language tooling, static checks, and repeatable local workflows.
Git Product · Developer Tools awareness Compiler Software · Programming Languages awareness Interpreter Software · Programming Languages Package Manager Operations · Build & Packaging Linting Operations · Build & Packaging Code Editor Product · Developer Tools CLI Software · Operating Systems Version Control Product · Developer Tools Dependency Operations · Build & Packaging Artifact Operations · Build & Packaging Development Environment Operations · Local Development Software Ecosystem Software · Programming Repository Product · Developer Tools awareness Commit Product · Developer Tools awareness Branch Product · Developer Tools awareness Pull Request Product · Developer Tools awareness
03
Inherited path
Testing & Debugging
A developer owns not only writing code, but proving that it behaves as intended.
04
Inherited path
Software Systems Basics
Even implementation-focused developers need a working vocabulary for clients, servers, interfaces, web requests, and the lifecycle surrounding a change.
Client Product · Web Applications awareness Server Operations · Runtime Infrastructure awareness Client-Server Architecture Product · Web Applications awareness Request-Response Product · API Products awareness API Product · API Products awareness HTTP Software · Computer Networks awareness Requirements Engineering Management · Requirements & Planning awareness Functional Requirement Software · System Design awareness NFR Software · System Design awareness Acceptance Criteria Management · Requirements & Planning awareness SDLC Management · Delivery Methodologies awareness
05
Inherited path
Employment Basics
Technical candidates benefit from understanding who employs them, how they are paid, and which terms govern the working relationship.
Employee Management · business-foundations awareness Contractor Management · business-foundations awareness EOR Management · business-foundations Offer Letter Management · business-foundations Employment Contract Management · business-foundations Compensation Management · business-foundations Employee Benefits Management · business-foundations Equity Compensation Management · business-foundations Payroll Management · business-foundations Statement of Work Management · business-foundations
06
Inherited path
Programming Foundations
Learn the basic building blocks used to express behavior in code.
Graph Data Structure Software · Algorithms & Data Structures awareness Big O Notation Theory · Algorithmic Analysis awareness Time Complexity Theory · Algorithmic Analysis Space Complexity Theory · Algorithmic Analysis Tree Software · Algorithms & Data Structures Heap Software · Algorithms & Data Structures Breadth-First Search Software · Algorithms & Data Structures Depth-First Search Software · Algorithms & Data Structures
07
Inherited path
Software Design
Structure code so it remains readable, testable, and maintainable as it grows.
Object-Oriented Programming Software · Programming awareness Interface Software · Software Design awareness Composition Software · Software Design Coupling Software · Software Design Cohesion Software · Software Design Design Pattern Software · Software Design Refactoring Software · Software Design Abstraction Software · Software Design Encapsulation Software · Software Design Modularity Software · Software Architecture
08
Inherited path
Data & Persistence
Understand how applications store, retrieve, and protect durable state.
09
Inherited path
Architecture & Systems
Design systems that handle growth, latency, failure, and multiple communicating components.
10
Inherited path
Production Awareness
Know how software is built, deployed, observed, and recovered in production.
11
Inherited path
Systems Foundations
Understand the operating-system and compute foundations beneath production software.
Infrastructure Engineering Operations · Runtime Infrastructure Linux Operations · Runtime Infrastructure Kernel Software · Operating Systems Process Software · Operating Systems Shell Software · Operating Systems File System Software · Operating Systems Block Storage Operations · Runtime Infrastructure Object Storage Operations · Cloud Infrastructure
12
Inherited path
Network & Access
Operate basic connectivity and access controls for infrastructure.
13
Inherited path
Operations Basics
Observe, maintain, and recover infrastructure safely.
14
Path concepts
Reliability Foundations
Understand the core vocabulary of resilient systems.
15
Path concepts
Production Signals
Observe and diagnose production systems using telemetry.
16
Path concepts
Distributed Operations
Operate distributed systems under traffic, failure, and consistency constraints.
17
Path concepts
Deployment & Recovery
Ship changes safely and recover when systems fail.