Job Interview Checklist

Goals

• full remote
• USA/Europe
• interesting companies
• плюшки
• опыт прохождения собеседований - relocation

Python

General

• naming conventions
• PIP8 - code style
• type annotations

Tools

• poetry
• pipenv
• Celery
• mypy - type checker https://mypy.readthedocs.io/en/stable/
• pylint
• flake8
• tox
• ddt
• minio as local s3
• noses
• py-spy
• dozer
• pyrasite
• gcore - core dump of running app
• gdb
• memory_analyzer
• filprofiler

Search Engines

• Text, vectors, similarity search, Q&A https://vespa.ai/
• Vector databsse https://milvus.io/

Load Tesing

• https://locust.io/
• https://github.com/tsenart/vegeta

Parsers

• https://github.com/pyparsing/pyparsing
• https://github.com/lark-parser/lark

Libraries

• FastAPI
• Flask
• SQLAlchemy
• boto3
• Python Eve
• joblib
• pytest
• unittest
• DRF
• SQLAlchemy vs DjangoORM

Core

Collections

• iterator protocol - iter and next, iterator, iterable, generator
• sequences, iterators and iterable
• reduce and map
• set/dict/list comprehension
• generator and iterator - method based and class based (generator is iterator)
  • https://stackoverflow.com/questions/2776829/difference-between-pythons-generators-and-iterators
  • https://stackoverflow.com/questions/231767/what-does-the-yield-keyword-do
  • send method https://stackoverflow.com/questions/19302530/whats-the-purpose-of-send-function-on-python-generators

Concurrency

• concurrency
• concurrent package
• async
• ThreadLocal
• pipe
• queue
• pool
• Value
• Array
• condition objects - wait/notify
• ContextVar
• How to Choose the Right Python Concurrency API, https://news.ycombinator.com/item?id=32408577
• producer-consumer pattern

Core types

• enums
• dataclasses
• list/dicts/sets
• iterators
• strings
• raw strings, byte strings, unicode strings
• tuples

Core classes, functions, packages

• stdlib
• ABC and @abstractmethod
• ContextManager - contextlib annotation and class-based
• decorators - function based, class based (class with __call__ method), @wrap from functools
• @property decorator (setter, getter, deleter)
• NamedTuple
• Path
• OrderedDict

Other

• slots
• yeld
• memory management - garbage collector and reference counter
• pattern matching
• inheritance
• __init__ and __new__
• magic methods
• singletone - module based, classic, Borg - https://www.geeksforgeeks.org/singleton-pattern-in-python-a-complete-guide/, metaclass
• __call__ method (callable)
• metaclasses
  • https://stackoverflow.com/questions/100003/what-are-metaclasses-in-python
• descriptors
• type annotations
• __hash__ and __eq__
• yield and generators
• @staticmethod and @classmethod (factory methods - cls as arg)
• @property (setter and getter)
• global and nonlocal
• signals
• __init__.py file - regular and namespace package https://stackoverflow.com/questions/37139786/is-init-py-not-required-for-packages-in-python-3-3
• single and double underscore https://stackoverflow.com/questions/1301346/what-is-the-meaning-of-single-and-double-underscore-before-an-object-name, https://stackoverflow.com/questions/8689964/why-do-some-functions-have-underscores-before-and-after-the-function-name/8689983#8689983
• docstring https://peps.python.org/pep-0257/

AWS

• design patterns
• design examples
• request-response tracing
• logs
• deployment
• Security Groups
• best practices

Articles

• https://aws.amazon.com/blogs/mt/monitoring-aws-lambda-errors-using-amazon-cloudwatch/

Services

• SQS
• DirectConnect
• Batch
• EventBridge
• SNS
• CloudWatch
  • task scheduling
• Step Functions
• Lambda
  • deployment
  • layers
  • docker image
  • limitations
  • SAM
  • scheduling via EventBridge
  • X-Ray tracking & monitoring
• Kinesis
• DynamoDB
• Redshift
• RDS
• ElasticCache
• CloudFront
• KMS
• Textract
• EFS
• IAM
• Redis
• VPC
• Fargate
• Lambda Insights monitoring
• ECR
  • vulnerabilities scanner
• EC2
• ECS and Fargate
  • scheduled tasks
• Aurora
• Backup
• Transfer Family
• Elastic Load Balancing https://aws.amazon.com/elasticloadbalancing/features/?nc1=h_ls
  • Application Load Balancer
  • Gateway Load Balancer
  • Network Load Balancer
  • Classic Load Balancer
• S3
  • signed url
  • TTL
  • lifecircle
  • cross account access
  • storage classes
  • policies
  • access points
  • batch operations
  • object locks
  • storage lens
  • inventory
  • storage class analysis
  • data querying - S3 Select, Athena, Redshift Spectrum
  • replication
  • Object Lambda for GET requests
  • S3 Trigger for Lambda
  • S3 and notifications

Small Notes

• AWS Migration Hub: AWS Migration Hub is a central repository that can be used
to keep track of a migration project
• AWS Application Discovery Service: AWS Application Discovery Service
automates the discovery and inventory tracking of different infrastructure
resources, such as servers, and any dependencies among them.
• AWS Migration Pattern Library: This is a collection of migration templates
and design patterns that can assist in the comparison of migration options and
alternatives
• CloudEndure Migration: CloudEndure Migration is a product offered by AWS that
simplifies cloud migration by automating many of the steps necessary to migrate to
the cloud.
• AWS Data Migration Service: This service can facilitate the migration of data from
your on-premises databases to the cloud, for example, into Amazon RDS	

Tools

• Docker
• GitLab CI (pipeline)
• helm
• dvc
• git
  • merge, merge fast-forward, rebase, interactive rebase
• Postgres
• mySQL
• Terraform
• Redis
• PostgREST
• Postman + Newman (cli to run tests)
• Snowflake
• Memcached vs Redis
• Kubernetes - objects and concepts
• dive
• dry
• sen
• lazydocker
• ctop/boi/cen

Logs

Databases

• normal forms
• sql vs nosql
• vertical vs horizontal scaling
• sharding
• transactions
• indexes
• secondary indexes
• JOINs
• SQL
• SELECT FOR UPDATE
• db locks
• database migrations - alembic, django, liquibase

Other

• REST
• deploy to production - flow, approaches etc
• JWT - access token, refresh token, flow
• system design
• HTTP/2
• SQL
• SOLID in depth
• Agile/SCRUM/Kanban
• design patterns - порождающие, структурные, поведенческие
• Алгоритмы и структуры данных
• Architectural, Enterprise and Design Patterns
• system design
• OSI levels
• clean code
• clean code discussion https://github.com/unclebob/cmuratori-discussion/blob/main/cleancodeqa.md
• LeetCode
• Postman
• Graphene
• horizontal and vertical scaling
• database normal forms
• seq diagrams
• Graphql
  • SQL to GraphQL https://hasura.io/
  • SQL to GraphQL https://graphjin.com/
• RPC - gRPC, REST, HATEOS, JSON-RPC, XML-RPC, SOAP
  • https://stackoverflow.com/questions/46145417/rest-vs-rpc-actual-purpose-differences
  • https://stackoverflow.com/questions/15056878/rest-vs-json-rpc
  • REST? Возьмите тупой JSON-RPC
  • https://ru.wikipedia.org/wiki/XML-RPC

Design Patterns

Creational Patterns

• factory method
• abstract factory
• builder
• prototype
• singleton

Structural Patterns

• adapter
• bridge
• composite
• decorator
• facade
• flyweight
• proxy

Behavioral Patterns

• chain of responsibility
• command
• iterator
• mediator
• memento
• observer
• state
• strategy
• template method
• visitor

Links

• https://refactoring.guru/design-patterns
• https://refactoring.guru/design-patterns/python

Project Management

• Agile
• Scrum
• Kanban
• soft skills
• conflict resolution
• PMBOK

Other-other

• write code without IDE

Books

• Clean Code
• AWS WebServices in Action
• AWS for Solution Architects
• PMBOK