Experience in a client-facing technical role (e.g., Technical Account Manager, Integration Engineer, FIX Onboarding)
Strong knowledge of FIX protocol and/or API-based integrations
Experience working in financial services or fintech, ideally within capital markets
Understanding of trading systems and front-to-back workflows
Ability to troubleshoot technical issues, including log analysis and connectivity problems
Strong stakeholder management and communication skills
Experience working in cross-functional, global environments
Work Arrangement
This role supports our US clients, and therefore the working hours will align with the US East Coast (New York) time zone.
The position can be either fully remote or hybrid, with a base in Warsaw.
The role is offered primarily on a permanent employment contract (Umowa o Pracę – UoP).
,[Support clients with the integration of APIs (including FIX) for market data, order entry, and STP, Manage end-to-end client onboarding and implementation projects across multiple regions, Partner with Sales during pre- and post-sales engagements to support solution design and delivery, Act as a primary technical contact for clients, building strong working relationships, Troubleshoot and resolve complex technical issues, acting as a point of escalation, Work closely with internal engineering teams to enhance products based on client feedback, Coordinate testing, certification, and rollout of new features and releases, Provide guidance and training to clients on product usage, Document processes and contribute to improving internal knowledge sharing, Use tools such as JIRA and Confluence to track issues and manage deliverables, Contribute to initiatives focused on automating and improving workflows using modern tools and AI, Personal Attributes, Proactive and solution-oriented mindset, Comfortable working in a fast-paced, client-facing environment, Strong problem-solving skills and attention to detail, Ability to manage multiple priorities under pressure, Collaborative team player with a pragmatic approach] Requirements: FIX Protocol, API, APIS, Stakeholder management Additionally: Private healthcare, Sport subscription, Flat structure, Lunch card, Small teams, International projects, Free coffee, Mobile phone, In-house trainings.