Trading Systems Integration Engineer

Capco
Warsaw
Workplace: HybridContractFunction: Capital Markets, Trading & QuantSkills: ["Troubleshooting","Distributed-systems thinking","Secure development practices"]

Design and develop resilient middleware and workflow-orchestration components connecting capital markets platforms, blockchain/DLT infrastructure, and market infrastructure. Build REST/API integrations and transaction workflow state management for pre-trade validation, transaction orchestration, settlement processing, and downstream system integration. Implement FIX 4.4 message flows and routing for tokenized order flows, with robust idempotency, retries, async/event-driven processing, audit logging, monitoring, and operational recovery. Collaborate on testing, CI/CD, and production readiness.

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FursaFursa
Capco
Capco
6 days ago

Trading Systems Integration Engineer

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Last checked: 1 hour agoStatus: Live

Job Summary

Design and develop resilient middleware and workflow-orchestration components connecting capital markets platforms, blockchain/DLT infrastructure, and market infrastructure. Build REST/API integrations and transaction workflow state management for pre-trade validation, transaction orchestration, settlement processing, and downstream system integration. Implement FIX 4.4 message flows and routing for tokenized order flows, with robust idempotency, retries, async/event-driven processing, audit logging, monitoring, and operational recovery. Collaborate on testing, CI/CD, and production readiness.
Location: Warsaw
Workplace: Hybrid
Employment Type: Contract · Permanent
Job Function: Capital Markets, Trading & Quant
Seniority: Mid level

Key Responsibilities

  • •Design and develop custom middleware and workflow-orchestration services for connecting capital markets, blockchain infrastructure, and market infrastructure.
  • •Build REST/API-based integrations and implement transaction/workflow state management across multi-step processing systems.
  • •Develop orchestration and validation/routing/reservation/earmark logic for pre-trade gateway, DvP/settlement, and downstream integration flows.
  • •Implement resilient transaction-processing patterns including idempotency, retry, queueing, replay, recovery, and asynchronous/event-driven processing.
  • •Develop FIX 4.4 message flows and routing logic for tokenized order flows, including mapping, validation, acknowledgements, execution reports, rejects, and operational monitoring/logging.

Key Requirements

  • •Hands-on experience building enterprise integration/middleware applications.
  • •Strong hands-on FIX 4.4 experience, including message structures, tags, session management, routing, and execution reporting.
  • •Experience integrating FIX 4.4-based exchange order flows with REST/API/middleware downstream systems, including DLT or similar market infrastructure.
  • •Strong development experience in Java/Spring Boot, .NET/C#, Node.js/TypeScript or comparable enterprise stacks.
  • •Experience with workflow/orchestration or transaction-processing systems using asynchronous/event-driven patterns (e.g., Kafka/MQ) and distributed-system reliability patterns.
Experience:Financial servicesCapital marketsPaymentsTradingSettlementCapital markets messagingBlockchain/DLTDigital assets
Skills:TroubleshootingDistributed-systems thinkingSecure development practices
Languages:English
Tech Stack:FIX 4.4REST APIJavaSpring Boot.NETC#Node.jsTypeScriptKafkaMQGitCI/CDFIX messaging

Company Brief

Capco
Global management and technology consultancy specializing in financial services. Capco advises banks, insurers, and capital markets firms on digital transformation, risk and compliance, technology implementation, and operational improvement, combining industry expertise with advisory and engineering capabilities.
Industry: Management Consulting
Company Size: Enterprise (1,001+ employees)
Growth: Established Company
Headquarters: London, United Kingdom
Founded: 1998
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