Computer Science
DevOps & CI/CD Challenges
DevOps & CI/CD challenges put you inside the work of shipping software safely and often. You'll develop skills in Version Control with Git, build CI/CD Pipelines, and package services with Docker, then run them through Kubernetes orchestration.
From there you'll handle the harder edges — GitOps, Helm chart authoring, Multi-cluster Kubernetes, Service mesh, and Zero-downtime deploys — working with Ansible / Terraform automation the way platform teams actually do. Each challenge you solve earns a verified credential you can share with recruiters.
Recommended Challenges
· Kubernetes orchestration Clear- DesignIntermediateNew
Design Multi-Tenant Network Policies with Calico Tier Enforcement
Receive the cluster topology (120 customer namespaces + 4 platform namespaces), the application traffic patterns (frontend talks to backend talks to its tenant's database), and …
- Kubernetes Orchestration
- Network Policy
- Calico
Container Orchestration with Kubernetes - CodeIntermediateNew
Migrate Stateful Workloads to StatefulSets with Storage Class Tuning
Receive the current Redis Sentinel topology (3 nodes, ~120GB data), the EBS gp3 baseline performance requirements (3,000 IOPS, 125 MB/s), and the cluster (EKS 1.29 with the EBS …
- Kubernetes Orchestration
- Statefulsets
- Storage Classes
Container Orchestration with Kubernetes - CodeIntermediateNew
Build a Canary Rollout for a Production Recommender
Pick a serving stack (Triton, Seldon Core, KServe, or BentoML). Implement two-model traffic splitting with a configurable percentage (start at 5%). Wire up online metric collect…
- Canary Deployment
- Kubernetes Orchestration
- A/B Testing
ML Engineering and Production ML - AnalysisIntermediateNew
Cost-Optimize a Misshapen Kubernetes Cluster
Receive 30 days of cluster metrics (Prometheus + AWS Cost Explorer exports), Helm releases, and PodDisruptionBudgets per namespace. Profile: identify the top 3 cost drivers (lik…
- Kubernetes Orchestration
- Finops & Cost Optimization
- AWS Or Azure
Cloud Computing Practice your coursework on real scenarios.
Every challenge is shaped from real industry context — not generic exercises. The work mirrors what your degree prepares you for.
Why Ewance
- CodeSeniorNew
Linkerd to Istio Migration for a Multi-Cluster Platform
Phase 1: install Istio alongside Linkerd in PERMISSIVE mode (Istio sidecars injected, Linkerd proxies remain). Phase 2: migrate non-critical namespaces first (4 namespaces) by r…
- Istio
- Linkerd
- Service Mesh
Service Mesh and Microservices Networking - CodeIntermediateNew
Canary Deployments via Mesh Traffic Splitting for a Streaming Platform
Set up Flagger with Istio as the traffic provider. Define a canary policy for the playback-API service: 5 percent → 25 percent → 50 percent → 100 percent with 5-minute bake at e…
- Istio
- Flagger
- Canary Deployment
Service Mesh and Microservices Networking - AnalysisBeginnerNew
Right-Size a Real-Time Recommendation Serving Cluster
You receive 7 days of request-level telemetry (timestamp, latency, error code, pod) plus the existing Horizontal Pod Autoscaler (HPA) and node-group configs. Analyze traffic pat…
- Model Serving
- Kubernetes Orchestration
- Autoscaling
Machine Learning at Scale - CodeBeginnerNew
Tune Autoscaling for a Cost-Sensitive Workload with HPA + KEDA
Receive the service's current Deployment + HorizontalPodAutoscaler config (static 12-20 replicas), 90 days of traffic logs + Kafka-lag metrics, and the SLA (p99 < 250ms, error r…
- Kubernetes Orchestration
- Autoscaling
- Keda
Container Orchestration with Kubernetes - Browse challenges
Explore role
Product Manager
Ship product that solves real user problems. Combine user research, prototyping, and stakeholder alignment to turn ambiguous briefs into measurable wins — the role at the centre of modern software teams.
- DesignIntermediateNew
Build a Multi-Tenant SaaS Foundation on Kubernetes
Design the multi-tenant model: namespace-per-tenant for compute isolation, per-tenant Postgres schemas inside a shared RDS instance for data, per-tenant S3 prefixes with bucket …
- Kubernetes Orchestration
- Multi Tenancy Architecture
- AWS Or Azure
Cloud Computing - CodeIntermediateNew
Build a GitOps Rollout Pipeline with ArgoCD Progressive Delivery
Receive the current CI pipeline (GitHub Actions runs kubectl apply against EKS), one representative service (Go API, 8 replicas, 4ms p99 SLO, 0.1 percent error-rate SLO), and ac…
- Kubernetes Orchestration
- Gitops
- Argocd
Container Orchestration with Kubernetes - CodeIntermediateNew
Build a Self-Service Internal Developer Platform on Backstage
Stand up a Backstage instance (Docker-Compose for local, EKS for prototype hosting). Build 3 software templates: (1) New Go microservice (repo + CI + ECS service + Terraform + b…
- Internal Developer Platform
- Backstage
- Terraform
Cloud Computing - CodeSeniorNew
Cost-Optimize a 24/7 LLM API Cluster
Profile the current usage (24-hour trace, per-team breakdown). Pick a cost-optimization mix from: time-based autoscaling, spot/preemptible instances with graceful drain, smarter…
- LLM Serving
- Autoscaling
- Ray
ML Engineering and Production ML Build a verifiable portfolio.
Submissions become evidence. Reviewers with shipping experience score against a rubric; the result becomes a credential anyone can verify.
Why Ewance
- DesignIntermediateNew
Build a Multi-Region Online Inference Service with SLAs
Design the topology: model artifact storage, regional inference fleets (Triton, vLLM, or BentoML), traffic router, observability stack (Prometheus + Grafana). Pick a rollout str…
- Inference Serving
- Multi Region Deployment
- Kubernetes Orchestration
Machine Learning Systems - CodeIntermediateNew
Build an Internal Developer Portal with Backstage for a FinTech
Deploy Backstage on the fintech's existing Kubernetes platform. Build catalog-info.yaml generators that crawl their GitHub orgs (300+ repos) and Jira (ownership tags) to seed th…
- Backstage
- Platform Engineering
- Service Catalog
Platform Engineering - DesignBeginnerNew
Design a Golden-Path Service Template for a Series-D Scale-Up
Design a golden-path template producing a Go (or Node) microservice with: REST + gRPC scaffolding, structured logging (slog or pino), OpenTelemetry tracing, Prometheus metrics, …
- Platform Engineering
- Golden Paths
- Backstage
Platform Engineering - CodeIntermediateNew
Roll Out mTLS Across 80 Microservices with Istio
Install Istio (current LTS) in ambient mode where possible, sidecar mode where ambient is not yet supported by the service. Phase 1: enable PERMISSIVE mTLS namespace by namespac…
- Istio
- Mtls
- Kubernetes Orchestration
Service Mesh and Microservices Networking - DesignBeginnerNew
Bootstrap ArgoCD on a Multi-Cluster Platform for an EdTech
Design the repo topology: per-environment vs per-tenant kustomize overlays, ApplicationSet generators for service-per-cluster fan-out, a sync-wave strategy for ordered deploys. …
- Argocd
- Kubernetes Orchestration
- Kustomize
GitOps and Continuous Delivery - StrategyIntermediateNew
Migrating a 40-Person SaaS Scale-Up to Cloud-Native Architecture
You are to create a detailed migration plan for TaskFlow. The plan must include breaking the monolith into at least 4 microservices, containerizing them with Docker, orchestrati…
- Microservices Patterns
- Docker
- Kubernetes Orchestration
Big Data and Cloud Technologies - CodeIntermediateNew
Containerized Model Inference on Kubernetes for a Fintech
You receive a pre-trained credit-risk model (a LightGBM model file) and a sample request payload. Containerize a FastAPI inference service, deploy to EKS or GKE (a single-zone c…
- Kubernetes Orchestration
- Containerization
- Autoscaling
Cloud Computing for Data and ML - CodeIntermediateNew
Roll Out OpenTelemetry Tracing Across a Microservices Fintech
Receive an anonymized service map (90 services, payment-critical path of 12), a runtime mix (Node.js, Go, Java), and existing logging/metrics setup. Define: an OTel SDK adoption…
- Distributed Tracing
- Opentelemetry Instrumentation
- Sampling Strategies
Software Observability - CodeIntermediateNew
Design a Multi-Tenant Kubernetes Namespace-Provisioning Self-Service
Design and build a Backstage scaffolder that lets a squad request a namespace (specifying environment, owners, expected scale). The scaffolder generates a pull request to a GitO…
- Platform Engineering
- Kubernetes Orchestration
- Self Service
Platform Engineering - CodeIntermediateNew
Harden a Linux Container Runtime Against Privilege Escalation
Receive the pen-test report (with attack chain), the current cluster config (EKS 1.29, default Amazon Linux 2023 worker nodes), and 3 representative workload classes (web API, a…
- Os Security
- Linux Hardening
- Apparmor
Computer Systems Security
How it works
From brief to credential, in six steps.
Step 01
Browse challenges aligned to your studies.
Step 02
Accept the one that fits your goals.
Step 03
Work through it with AI Copilot guidance.
Step 04
Submit for structured evaluation.
Step 05
Earn a verified credential.
Step 06
Add it to LinkedIn with one click.
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