Exchange connectivity & market data
REST, WebSocket and FIX across 30+ venues, with snapshot-plus-delta order-book reconstruction — never trusting a single feed.
Development · Trading
Trading infrastructure built to run in production, not just survive a backtest. Execution algos, market-making, arbitrage, signals — engineered for the failure modes that only show up once real capital is moving.
Corum8 builds automated trading infrastructure — execution algorithms, market-making bots, arbitrage engines, signal-driven strategies and retail-facing trading platforms. Work spans exchange integrations across 30+ venues, latency-aware order routing, risk and position management, reconciliation pipelines and the alerting and ops tooling live trading requires.
What's included
REST, WebSocket and FIX across 30+ venues, with snapshot-plus-delta order-book reconstruction — never trusting a single feed.
Deterministic order state with event sourcing — every state change logged and replayable, orphan orders reconciled on every reconnect.
Pre-trade position limits and fat-finger checks, post-trade P&L and VaR, circuit breakers that enforce — not ask.
Rust or C++ when latency dominates, Go for throughput, Python for research-to-production — strategies emit intents, execution handles the rest.
TWAP, VWAP, POV, Iceberg, Pegged — parameterized by market-impact tolerance, time-to-fill and slippage.
Exchange balance, OMS state and on-chain movement reconciled continuously — any drift is a bug, a missed trade, or a security issue.
Structured alerting, one-button halts per-strategy and global, and runbooks for every known failure mode.
Exchange-region endpoints and kernel-bypass networking where microseconds are the strategy's edge.
Is this you?
You don't need all of them. One is usually enough to justify the call.
The strategy worked in backtest, but the first live week showed behavior nobody on the team can debug.
You're running paper trading and the next round depends on moving real capital onto the system.
You operate across three-plus exchanges and integration drifts or breaks every time a venue updates its API.
Your risk controls are 'the trader manually checks balances' and that no longer satisfies your auditor.
You're launching retail automated strategies and reliability is now a product requirement, not an internal nice-to-have.
Your current system works, but every new strategy takes a month of engineering because the infrastructure isn't modular.
Sectors
The strategy differs, the production discipline doesn't.
Cross-venue strategies moving from research notebooks to production execution.
Two-sided quoting with inventory management across spot and perps.
Triangular and cross-asset arb with tight, enforced risk limits.
Grid bots, DCA and copy-trading with sandboxed per-user execution.
Strategies trading against model outputs, sentiment and on-chain metrics.
Execution algos with best-execution reporting for institutional clients.
Private-mempool routing and AMM-curve slippage modeling alongside CEX flow.
Exchange-region deployment and kernel-bypass networking for microsecond tiers.
Process
Two weeks mapping every way the system can break — outages, rate limits, partial fills, clock drift — before strategy work starts.
Order management, risk engine and execution algos engineered against the failure model, in the language the latency tier demands.
Identical code path, real market data, fake fills — run for weeks before a single dollar of real capital moves.
Small capital first, increased against measurable reliability metrics — not a single go-live switch.
Case studies
Quant execution slippage across multiple venues and a FIX-to-crypto bridge for an existing prop trading stack.
A Series B crypto-native quant fund running strategies across seven venues was losing money to execution slippage and missed fills during volatility. Rebuilding the OMS and execution layer in Rust, with the critical path separated from unchanged Python strategy logic, cut cross-venue slippage roughly 40 basis points and handled a significant Q2 volatility event with no missed fills.
An established prop desk wanted crypto market-making added to its traditional-finance operation without rebuilding its FIX-based OMS and risk stack. A protocol-bridge service translating between the FIX OMS and heterogeneous crypto venue APIs let market-making bots deploy on major spot pairs and perps without touching existing risk-and-reporting infrastructure.
Why Corum8
2021 mania, the 2022 crash, 2023-2024 consolidation, and the 2025-2026 institutional arrival.
The instincts we use now come from watching systems fail across every one of those regimes.
Connectivity, OMS, risk, strategy framework, execution and monitoring under one roof and one security lead.
No split between a quant consultancy, a low-latency shop and a separate UX studio.
Broker partnerships, market-maker relationships and exchange business-development alongside the build.
We build the trading system and the commercial relationships that keep it running.
What drives scope
Cost is driven by latency tier, venue coverage, strategy complexity and ops footprint — not strategy logic, which is usually the smallest piece.
Retail DCA tolerates seconds; cross-venue arb needs tens of milliseconds; HFT market-making wants microseconds and colocation.
One exchange is a week of integration. Thirty exchanges with spot, futures, options and DEXs is a year of ongoing engineering.
Spot is lightest. Futures add funding-rate handling; options add greeks and volatility surfaces; cross-margin perps add position netting.
One strategy on the infrastructure is cheap. Ten strategies sharing it need real isolation, per-strategy risk and deployment.
A retail product with user accounts, fund accounting and support load is a fintech product built on top of a trading system.
Trading your own book is lightest; running an operation that serves external clients adds significant engineering.
FAQ
Crypto trading bot development is the engineering of software that automatically places and manages orders in crypto markets based on a strategy. Categories range from retail tools like grid bots and copy-trading to professional systems like execution algos, market-making and arbitrage. Real production systems involve exchange connectivity across multiple venues, deterministic order-state tracking, risk engines that enforce limits, reconciliation against exchange balances, and monitoring that catches failures in seconds.
Cost is driven by latency tier, venue coverage, asset-class breadth, strategy count, user-facing surface and operating scope — not by strategy logic, which is usually the smallest piece. A retail DCA bot is one build. A multi-venue low-latency arbitrage engine with cross-margin perpetuals coverage is an order of magnitude heavier, and HFT market-making with colocation is another order beyond that.
Exchange connectivity across your target venues, redundant market-data feeds, an OMS with deterministic state tracking, a risk engine with pre- and post-trade limits, execution algos, reconciliation, monitoring and runbooks for known failure modes. The strategy alpha itself stays yours — we implement it. Exchange agreements and MM contracts get integrated technically; you sign the commercial deals, and anything legal stays with you and your counsel while we build to what they specify.
It depends on latency tier and team skill. Latency-critical paths like HFT and aggressive market-making benefit from Rust or C++, where microseconds matter. Throughput-heavy infrastructure often lands well in Go. Strategy research and less-latency-sensitive execution runs comfortably in Python with optimized hot paths. Most serious systems mix languages across the stack rather than picking one.
As a first-class infrastructure concern, not a retry loop. Each venue has specific rate limits across order placement, cancellation, market data and account queries. Dedicated rate-limit tracking per venue per endpoint, queued orders as limits approach, and prioritized cancellations over placements mean getting rate-limited during a volatility event is a known risk, not a surprise.
It depends on what you're operating — proprietary trading for your own account differs from running a broker or a retail product. Proprietading your own book is the lightest case. Serving external clients is heavier, and retail-facing automated platforms add consumer-protection requirements. Your counsel works out which apply. We architect the system to match what they tell us.
Yes — DEX execution runs alongside CEX execution in the same system. DEX execution has different characteristics: no rate limits but gas costs, MEV exposure requiring private-mempool solutions, and slippage modeling against AMM curves. We build DEX execution into the same OMS and risk framework as CEX trading — from a strategy's perspective, venue type is configuration, not a different system.
Custom earns its place when the strategy, the latency or the integration is the thing that makes you competitive. Unusual instruments, specific execution behaviour, deep integration with an OMS you already run, or throughput no vendor product will give you — those genuinely need building. Where standard tooling already executes what you run, using it gets you trading sooner and you keep the option to build later. We map your requirements against both honestly, and the answer is usually obvious once the list exists.