Isolated Sandboxed Code Execution Engine
A high-throughput, containerized code execution environment running candidate submissions securely across TypeScript, Python, Go, Java, and C++ against real-world test suites in milliseconds.
sandbox-worker-us-east-1a • Python 3.12 Runtime
● All 8 Test Cases Passed# Candidate Solution: LRU Cache with O(1) eviction
class LRUCache:
def __init__(self, capacity: int):
self.capacity = capacity
self.cache = OrderedDict()
✓ Test Suite: [Case 1: Insert, Case 2: Evict, Case 3: Concurrency, Case 4: Scale (100k items)]
Execution Time: 142ms • Memory: 18.4MB • Network: Disabled (Isolated)
Engine Specs
Containerized isolation & performance metrics.
Ephemeral MicroVMs
Every code submission executes in an ephemeral, firewalled container with restricted syscalls (seccomp-bpf) and zero host network access.
Sub-200ms Execution Spool
Pre-warmed runtime pools provide instant compilation and test execution without sluggish container boot delays.
Multi-Language Support
Full standard library and runtime support for TypeScript / JavaScript (Node 22), Python 3.12, Go 1.23, Java 21, and C++20.
Sandbox FAQ
Frequently Asked Questions
Evaluate engineering candidates on real code execution.
Configure coding challenges and watch candidate solutions run in our secure sandbox engine.