Engineering & Medical Student Projects
5000 projects · Page 1 of 209
Thread-Safe Rate Limiter Library (Token Bucket + Sliding Window)
Already built and tested (13 passing tests incl. 200-thread concurrency). You will learn token-bucket and sliding-window algorithms, decorator APIs and thread-safety patterns.…
In-Process Event Bus with Retry, Backoff and Dead-Letter Queue
Already built and tested (11 passing tests). You will learn pub/sub design, exponential backoff, wildcard topics and dead-letter handling used in real microservices.…
Streaming Log Anomaly Detector CLI
Already built and tested (11 passing tests). You will learn streaming log parsing, rolling z-score anomaly detection and command-line tool design.…
Cron Expression Parser and Job Scheduler Engine
Already built and tested (18 passing tests incl. leap-year edge cases). You will learn 5-field cron parsing, next-run computation and scheduler engine design.…
Streaming CSV Schema Validator with Row Quarantine
Already built and tested (12 passing tests). You will learn streaming validation of large files, typed column schemas, quarantine outputs and JSON error reporting.…
Mini Kafka: In-Memory Message Broker with Consumer Groups
Already built, mvn verify green (9 tests). You will learn how Kafka works inside - topics, partitions, consumer groups, offsets and replay - by building a working broker.…
Concurrent LRU/LFU Cache with Eviction Policies and Stats
Already built, mvn verify green (8 tests incl. multi-threaded). You will learn cache eviction policy design, thread safety and hit/miss instrumentation.…
Resilience Library: Circuit Breaker, Retry and Bulkhead
Already built, mvn verify green (8 tests). You will learn fault-tolerance patterns used in production microservices - circuit breaker states, capped backoff retries and semaphore bulkheads.…
Zero-Dependency JSON Parser and Serializer from Scratch
Already built, mvn verify green (9 tests). You will learn recursive-descent parsing, grammar design and robust error handling by writing a complete JSON engine.…
Priority Thread-Pool Executor with Real Futures
Already built, mvn verify green (6 tests). You will learn custom executor design, priority queues with FIFO fairness and Future-based result handling.…
Append-Only Inventory Ledger with Trigger-Maintained Balances
Already built (6 lint-passed SQL files). You will learn ledger-style schema design, balance-maintaining triggers that block tampering, and valuation reporting views.…
Appointment Booking System with Double-Booking Prevention
Already built (6 lint-passed SQL files). You will learn overlap detection with FOR UPDATE locking, BEFORE INSERT triggers and utilisation reporting.…
Billing Engine: Invoices, Tax Rules and Payment Ageing
Already built (5 lint-passed SQL files). You will learn invoice/line-item modelling, tax and discount recalculation procedures, payment allocation and ageing reports.…
Temporal Audit Trail with Point-in-Time Reconstruction
Already built (6 lint-passed SQL files). You will learn history-table design, JSON change snapshots and procedures that rebuild any record as of a past timestamp.…
E-Commerce Cohort, Funnel and RFM Analytics Pack
Already built (5 lint-passed SQL files). You will learn advanced SQL analytics - cohort retention, funnel conversion and RFM customer segmentation with window functions.…
Python Data Pipeline Toolkit (ETL with Validation and Lineage)
Already built as a resume-grade project. You will learn ETL pipeline architecture, schema validation, incremental loads and data-lineage tracking.…
MySQL Analytics Schema: Star Design for Business Reporting
Already built as a resume-grade project. You will learn star-schema design, fact/dimension modelling and analytics query patterns.…
Airflow ETL Orchestration: DAGs, Sensors and Backfills
Already built as a resume-grade project. You will learn production DAG design, sensors, retries, backfill strategy and pipeline monitoring.…
BigQuery Warehouse Analytics: Partitioned ELT at Scale
Already built as a resume-grade project. You will learn partitioned/clustered table design, ELT modelling and cost-aware query optimisation on BigQuery.…
SingleStore Real-Time Analytics: Streaming Ingest + Live Dashboards
Already built as a resume-grade project. You will learn HTAP concepts, streaming ingest pipelines and low-latency analytical queries.…
Supabase Notes API: Auth, Row-Level Security and Realtime
Already built as a resume-grade project. You will learn Postgres row-level security, Supabase auth flows and realtime subscriptions.…
Cloud Run CI/CD: Spring Boot Service with Terraform IaC
Already built, 15 tests passing, CI green. You will learn containerised deployment, infrastructure as code and a full test-build-deploy pipeline on GCP.…
Dataflow Streaming Pipeline with Dead-Letter Handling
Already built, 17 tests passing plus an end-to-end local run. You will learn event-time windowing, validation contracts and dead-letter patterns for streaming data.…
Vertex AI ML Pipeline with Metric-Gated Model Registration
Already built, 11 tests passing and the pipeline compiles locally. You will learn production ML pipelines - ingest, train, evaluate, quality gate and conditional model registration.…