> Markdown version of [/jobs/ext/1412497-fix-connectivity-engineer](https://www.wearedevelopers.com/jobs/ext/1412497-fix-connectivity-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # FIX Connectivity Engineer - **Company:** Susquehanna International Group, LLP - **Location:** United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Computer Networks, Linux, Financial Information EXchange, Software Engineering, SQL Databases, Scripting, Tools for Reporting - **Published:** July 23, 2026 - **Apply:** https://www.dice.com/job-detail/1e108df9-e981-4c1d-8eaa-2ed6c8a080af ## About the Role * 3+ years of experience supporting or implementing FIX connectivity in a brokerage, trading firm, exchange, fintech, OMS/EMS vendor, or financial technology environment. * Strong understanding of the FIX protocol, including session-level and application-level messages. * Familiarity with electronic trading concepts, order lifecycle, routing, executions, allocations, and trade capture. * Hands-on experience troubleshooting FIX sessions using logs, message viewers, network tools, or trading support platforms. * Experience working in production support environments with change management, incident management, and release controls. * Strong analytical, communication, and documentation skills. * Ability to work directly with clients, vendors, traders, developers, and operations teams. Preferred Qualifications: * Experience with SQL, scripting, or reporting tools. * Familiarity with OMS/EMS platforms such as Bloomberg EMSX, Fidessa, FlexTrade, Charles River, Eze, Portware, or similar systems. * Knowledge of exchange or market center connectivity, including order routing and drop copy. * Experience participating in client-facing technical onboarding or production readiness reviews. * Experience dealing with order routing in a global, multi-system environment. * Experience working in a Linux environment. Ideal Candidate Will Have: * Strong problem-solving under time-sensitive market conditions. * Detail-oriented approach to protocol specifications, message flows, and production controls. * Clear communication with both technical and non-technical stakeholders. * Ownership mindset for production stability and client experience. * Ability to manage multiple onboarding, certification, and support priorities simultaneously, where priorities may shift dynamically due to business need ## Description Susquehanna International Group is seeking a FIX Connectivity Engineer to support, enhance, and expand electronic trading connectivity for our global client facing brokerage trading business. This role will focus on onboarding and maintaining FIX-based client, broker, venue, OMS/EMS, and market connectivity across equities, options, FX, or other asset classes. The ideal candidate has strong hands-on experience with the FIX protocol, trading workflows, order management systems, certification testing, and production support in a brokerage / electronic trading environment. This person will work closely with trading desks, clients, exchanges, vendors, product teams, infrastructure, compliance, and application development teams to deliver reliable and well-controlled connectivity solutions. In this role, you will: * Implement, configure, test, and support FIX connectivity for clients, counterparties, exchanges, ATSs, ECNs, brokers, OMS/EMS platforms, and trading vendors. * Manage full connectivity onboarding lifecycle, including requirements gathering, session setup, message specification review, certification, production rollout, and post-go-live support. * Analyze FIX messages across order entry, cancel/replace, execution reports, drop copy, allocations, and administrative workflows. * Troubleshoot production issues involving order flow, rejects, sequence gaps, session disconnects, latency, routing behavior, and trade reporting discrepancies. * Maintain and enhance FIX session configurations, routing rules, symbol handling, account mappings, entitlement controls, and message transformations. * Partner with developers and infrastructure teams to improve connectivity platforms, monitoring, alerting, resiliency, and operational tooling. * Work with business stakeholders to understand trading workflows and translate requirements into technical connectivity specifications. * Participate in exchange, broker, and vendor certification testing. * Support incident response, root-cause analysis, and remediation for connectivity-related issues. * Provide occasional off-hours support for production releases, venue testing, market events, or critical incidents. ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [JavaScript? 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