1745 posts · page 20 of 37
A grounded guide to what changes from L3 to L6+ in the typical engineering ladder, including scope, autonomy, impact, and how promotions actually work.
Demystify the modern tech interview loop. Learn what each stage tests, how to prepare for it, and the signals interviewers actually look for.
Why speaking at meetups and conferences pays back tenfold, how to pick a topic, build a talk, and turn a single CFP submission into compounding career leverage.
A senior-engineer checklist for system design interviews: how to drive the discussion, allocate time, surface trade-offs, and avoid common traps.
A senior engineer's guide to writing design docs: structure, audience, trade-offs, and the review patterns that lead to fast approval.
Compare blue-green and canary deployment strategies, including how they handle rollback, traffic shifting, and observability, with concrete Kubernetes and AWS examples.
Learn how to ship canary releases on Kubernetes using Flagger. Covers the control loop, metric analysis, traffic shifting, and how to roll back automatically when a release misbehaves.
Learn how to design CI/CD pipelines for monorepos using affected detection, build graphs, and caching to keep builds fast as the repo grows.
Compare rolling, blue/green, canary, shadow, and feature flag deployments. Learn when to pick each strategy and the trade-offs in risk and cost.
Speed up CI builds with dependency caches, layer caches, remote build caches, and content-addressed storage. Learn what to cache and what to skip.
An overview of rollback strategies in modern CI/CD: redeploy previous, blue-green flip, canary reverse, database-safe rollbacks, and the trade-offs between speed and safety.
Keep API keys, tokens, and database credentials safe in CI/CD with rotation, scoping, secret managers, and OIDC-based authentication.
A practical guide to running your own CI/CD runners. Learn when self-hosting beats cloud runners, how to set them up safely, and how to keep them healthy in production.
Stop copy-pasting CI YAML across repos. Learn how to build reusable GitHub Actions workflows with inputs, secrets, outputs, and per-environment overrides.
How S3 bucket policies, IAM policies, and ACLs interact, how to write least-privilege bucket policies, and patterns for cross-account access without footguns.
How to run a blameless postmortem that actually improves your systems. Covers the philosophy, the meeting structure, a template you can copy, and the traps that turn a good process bad.
How to design a CI/CD pipeline that stays fast, reliable, and reversible: stages, caching, parallelism, environments, and rollback strategies that scale with the team.
An introduction to chaos engineering: hypothesis-driven failure injection that finds weaknesses before customers do.
Feature flags decouple deploy from release. Learn flag types, rollout strategies, and how to keep your codebase from drowning in stale toggles.
A practical playbook for running production incidents: roles, comms, mitigation order, and the postmortem that turns pain into improvement.
A practical tour of monitoring services with Prometheus for metrics collection and Grafana for dashboards, alerts, and SLO tracking.
A tour of the modern observability stack: metrics, logs, traces, and events. Learn how the pillars fit together and how to choose tooling without drowning in dashboards.
How to write runbooks that on-call engineers actually use at 3am. Covers structure, tone, automation hand-offs, and how to keep runbooks alive instead of letting them rot.
Service Level Indicators, Objectives, and error budgets demystified: how to pick the right metric, set a target, and use the budget as a decision tool.
How Docker multi-stage builds work, why they shrink images dramatically, and patterns for Python, Node, and Go services that need a clean runtime layer.
How Pods, ReplicaSets, and Deployments relate, why you almost never create Pods directly, and how rolling updates and rollbacks actually happen.
Why Terraform state exists, how it maps configuration to real infrastructure, and how to set up remote backends, locking, and workspaces without losing your mind.
Go beyond the default Django admin: customize ModelAdmin classes, list views, search, filters, inline editing, and admin actions to build a usable backoffice your team will actually enjoy.
Compare per-view, template fragment, low-level, and per-site caching in Django and learn when each pays off.
A practical guide to wiring Celery into Django for background work, scheduled jobs, and reliable task processing.
Add real-time features to Django with Channels. Build a WebSocket chat consumer, set up the ASGI server, and broadcast events with channel layers.
Understand Django's class-based views by building from View up to ListView and UpdateView. Learn the MRO, mixins, and when CBVs beat function-based views in real projects.
Understand how a Django request flows through middleware, URL routing, and views, and learn to write custom middleware for cross-cutting concerns.
Model real-world relationships in Django with ForeignKey, OneToOneField, and ManyToManyField, including reverse lookups, on_delete, and through tables.
Move beyond is_authenticated. Learn how to model groups, object-level permissions, and DRF permission classes cleanly.
Understand how DRF serializers validate, transform, and persist data, and learn how to compose them for complex API payloads.
A practical comparison of DRF and FastAPI: performance, ORM, validation, async, and how to choose for a new Python service.
Learn how Django signals decouple side effects from your models, when to use them, and the common pitfalls that make signals hard to debug.
Master the Django template language: contexts, inheritance, includes, custom tags and filters, autoescaping, and performance tips for building maintainable server-rendered UIs.
Why your Docker builds are slow and your images are bloated, and how to fix both with a tight build context and a thoughtful .dockerignore.
Build container images that run on both x86 and ARM with Docker Buildx, QEMU, and registry manifests, without doubling your CI complexity.
Network aliases let containers reach each other under multiple names. Learn how aliases work in Compose, when to use them, and the gotchas to avoid.
Use Docker Compose profiles to start only the services you need. Learn the syntax, common patterns, and pitfalls when mixing profiles with depends_on.
A pragmatic comparison of Docker Compose and Kubernetes covering scope, operational cost, and the signals that tell you it is time to graduate.
Healthchecks tell Docker if a container is alive. Restart policies tell it what to do when it is not. Together they keep your services running.
Disk full from Docker? Learn what fills up, which prune commands are safe, and how to automate cleanup so /var/lib/docker stops eating your machine.
Learn how Docker's layer cache really works and the ordering tricks that turn a 5-minute build into a 20-second one without sacrificing correctness.
A clear guide to Docker's three most common network drivers, when to pick each one, and how packets actually flow between containers in real deployments.