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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Integration Engineer - **Company:** Playson - **Location:** Spain - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Bash Shell, Software as a Service, Domain Name System (DNS), Monitoring of Systems, Hypertext Transfer Protocols (HTTP), JSON, Python (Programming Language), Networking Basics, OAuth, TCP/IP, Scripting, Grafana, Software Security, Enterprise Integration, Kibana, Restful APIs, Webhooks, Programming Languages - **Published:** October 24, 2026 - **Apply:** https://www.jobleads.com/es/job/senior-integration-engineer--spain--e3a870034ca1d63a41f532fb74439f22d ## About the Role * 3+ years of experience in: + Integration Management + Technical Account Management + Solutions Engineering * Strong understanding of: + REST APIs, JSON, HTTP + Webhooks, idempotency, error handling * Solid understanding of networking fundamentals: + TCP/IP, DNS * Experience with API security: + API keys, OAuth, JWT + Request signing (HMAC), replay protection * Hands-on experience with: + Logs and monitoring tools (ELK, Kibana, Grafana, or similar) * Ability to review, understand, and create technical documentation, including API documentation * Strong analytical thinking with the ability to identify root causes in complex systems * Excellent communication skills - comfortable working with both technical and business stakeholders * Ownership mindset - proactive, accountable, and delivery-driven Nice to Have * Experience in iGaming, fintech, or SaaS environments * Experience working with aggregators or platform integrations * Exposure to high-scale environments with multiple concurrent integrations * Experience handling partner negotiations or technical discussions at a senior level * Experience writing scripts or working with a programming language (e.g. Python, JavaScript, Bash) * Leadership potential (opportunity to grow into a lead role) ## Description About the Role We're looking for a Senior Integration Engineer to take full ownership of partner integrations - from initial onboarding through to go-live and beyond. This is a delivery-focused, highly technical role where you'll act as the key bridge between partners, commercial teams, and engineering. You won't just coordinate - you'll drive integrations forward, solve complex issues, and ensure partners are successfully launched. Key Responsibilities * Own end-to-end partner integrations: kickoff, implementation, testing, and go-live * Drive multiple integrations in parallel, ensuring timely and high-quality delivery * Act as the main technical point of contact for partners (from engineers to C-level stakeholders) * Lead technical discussions and solution design, ensuring alignment between partner requirements and our platform * Work closely with internal teams to ensure smooth integrations and resolve technical challenges along the way * Translate partner needs into clear technical requirements and push back when needed * Collaborate closely with Commercial, Onboarding, and Engineering teams to support business goals * Ensure successful delivery and provide technical sign-off before go-live * Contribute to improving integration processes, documentation, and scalability Requirements * 3+ years of experience in: + Integration Management + Technical Account Management + Solutions Engineering * Strong understanding of: + REST APIs, JSON, HTTP + Webhooks, idempotency, error handling * Solid understanding of networking fundamentals: + TCP/IP, DNS * Experience with API security: + API keys, OAuth, JWT + Request signing (HMAC), replay protection * Hands-on experience with: + Logs and monitoring tools (ELK, Kibana, Grafana, or similar) * Ability to review, understand, and create technical documentation, including API documentation * Strong analytical thinking with the ability to identify root causes in complex systems * Excellent communication skills - comfortable working with both technical and business stakeholders * Ownership mindset - proactive, accountable, and delivery-driven Nice to Have * Experience in iGaming, fintech, or SaaS environments * Experience working with aggregators or platform integrations * Exposure to high-scale environments with multiple concurrent integrations * Experience handling partner negotiations or technical discussions at a senior level * Experience writing scripts or working with a programming language (e.g. Python, JavaScript, Bash) * Leadership potential (opportunity to grow into a lead role) What We Offer * Competitive Salary * Quarterly Bonuses * Unlimited Paid Time Off * Unlimited Paid Sick Leave * Remote & Flexible Working * Private Medical Insurance * Financial Support for Life Events * Professional Development Budget * International Exposure * Regular Company Events *Benefits may vary depending on location and contractual agreement