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Senior Python Engineer (AI)

Capital · Warsaw, Mazowieckie, Poland

Posted 2026-06-01 · Verified live 2026-09-23

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About this role

<p>We are looking for an experienced Senior Software Engineer - Python / AI Engineer to join the Internal Development Team.</p>

<p>In this role, you will design, develop, and maintain internal tools, APIs, AI-driven automation workflows, and system integrations that improve operational efficiency across Capital.com. The role is strongly focused on building practical AI solutions, including AI agents, agent workflows, automated decision-support flows, and integrations with internal and external systems.</p>

<p>You will collaborate closely with Engineering, Security, Operations, Compliance, Finance, and other business teams to deliver secure, reliable high-quality software that supports internal workflows, data integration, and emerging AI-driven initiatives.</p>

Key Responsibilities:

<li>Develop and maintain internal services, tools, APIs, automation scripts, and AI-enabled workflows.</li>

<li>Design and implement AI agents, multi-step agent flows, and automation pipelines to support internal business processes.</li>

<li>Build integrations with internal and third-party systems, including financial platforms, payment providers, reporting tools, Jira, Confluence, Okta, Slack, AWS, and other enterprise systems.</li>

<li>Develop AI-powered features such as intelligent data processing, document analysis, classification, anomaly detection, workflow automation, and decision-support tools.</li>

<li>Integrate LLMs and AI services into internal applications using APIs, orchestration frameworks, vector databases, and retrieval-augmented generation where appropriate.</li>

<li>Create and maintain automation flows connecting AI agents, APIs, databases, notifications, and approval workflows, local and remote MCP servers.</li>

<li>Investigate, troubleshoot, and resolve issues related to financial integrations, API failures, data inconsistencies, automation errors.</li>

<li>Write clean, efficient, secure, and well-documented code following software engineering best practices.</li>

<li>Implement CI/CD pipelines and automated testing frameworks. Optimize system performance and ensure reliability and security. Contribute to architectural decisions and participate in code reviews.</li>

<li>Optimize performance, reliability, observability, and security of internal tools and integrations.</li>

<li>Support architectural decisions, participate in code reviews, and contribute to engineering standards.</li>

<li>Continuously identify opportunities to improve manual processes through automation, AI, and better system integrations.</li>

<p>&nbsp;</p>

Requirements:

<li>3–5+ years of professional experience as a Python Developer, AI Engineer</li>

<li>Strong proficiency in Python 3.x, including asynchronous programming, REST API development</li>

<li>Experience with frameworks such as FastAPI, FastMCP, Flask, or Django.</li>

<li>Practical experience building or integrating AI-powered solutions in production or near-production environments.</li>

<li>Experience working with LLM APIs and AI platforms, such as OpenAI, Anthropic, AWS Bedrock, Google Vertex AI, or similar.</li>

<li>Experience designing AI agent workflows, tool-calling flows, prompt-driven automation, or multi-step AI orchestration.</li>

<li>Understanding of AI engineering concepts such as prompt design, retrieval-augmented generation, embeddings, vector databases, structured outputs, evaluation, and guardrails.</li>

<li>Ability to integrate AI capabilities into existing services, internal tools, and automation workflows.</li>

<li>Strong experience with API integrations, including authentication, OAuth2, webhooks, error handling, retries, rate limits, and secure data exchange.</li>

<li>Solid understanding of SQL and relational databases such as PostgreSQL or MySQL.</li>

<li>Experience troubleshooting API integrations, data synchronization issues, automation failures, and production defects.</li>

<li>Basic proficiency in HTML, CSS, and JavaScript to support lightweight frontend interfaces or internal admin dashboards.</li>

<li>Experience with Docker and Kubernetes.</li>

<li>Familiarity with GitLab CI/CD or similar CI/CD pipelines.</li>

<li>Experience with financial data processing, reconciliation, reporting automation, or transaction monitoring.</li>

<li>Understanding of risk, compliance, and operational controls in financial environments.</li>

<li>Understanding of secure coding practices, secrets management, access control, and secure data handling.</li>

<li>Strong analytical, debugging, and problem-solving skills.</li>

<li>Excellent communication skills and ability to work with both technical and non-technical stakeholders.</li>

Preferred:

<li>Experience working with AWS services.</li>

<li>Experience with Kubernetes deployments and management.</li>

<li>Experience integrating with enterprise tools (Jira API, Okta API, Slack API).</li>

<li>Familiarity with infrastructure as code and DevOps practices.</li>

<li>Exposure to logging and monitoring stacks (ELK, Prometheus, Grafana).</li>

<li>Understanding of secure coding practices and compliance requirements in fintech or regulated environments.</li>

<li>General understanding of the math and algorithms behind AI and related technologies.</li>

What you will get in return:

<li><strong>Competitive Salary:</strong>&nbsp;We believe great work deserves great pay! Your skills and talents will be rewarded with a salary that makes you feel valued and motivated.</li>

<li><strong>Work-Life Harmony:</strong>&nbsp;Join a company that genuinely cares about you - because your life outside of work matters just as much as your time on the clock. #LI-Hybrid</li>

<li>&nbsp;<strong>Annual Performance Bonus:</strong>&nbsp;Your hard work doesn’t go unnoticed! Celebrate your achievements with a well-deserved annual bonus tied to your performance.</li>

<li><strong>Generous Time Off:</strong>&nbsp;Need a breather? Our annual leave policy lets you recharge and enjoy life outside of work without a worry.</li>

<li><strong>Employee Referral Program:</strong>&nbsp;Love working here? Share the love! Bring your talented friends on board and get rewarded for growing our awesome team.</li>

<li><strong>Comprehensive Health &amp; Pension Benefits:</strong>&nbsp;From medical insurance to pension plans, we’ve got your back. Plus, location-specific benefits and perks!</li>

<li><strong>Workation Wonderland:</strong>&nbsp;Live your digital nomad dreams with 30 extra days to work remotely from anywhere in the world (some restrictions apply). Adventure awaits!</li>

<li><strong>Volunteer Days:</strong>&nbsp;Make a difference! Take two additional paid days each year to support causes you care about and give back to the community.</li>

Be a key player at the forefront of the digital assets movement, propelling your career to new heights!&nbsp;Join a dynamic and rapidly expanding company that values and rewards talent, initiative, and creativity.&nbsp;Work alongside one of the most brilliant teams in the industry.

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