Responsibilities

- We are looking for a Senior Backend Engineer (GoLang) with deep Go expertise to join the Gateways team.
- This is a hands‑on individual contributor role with expectations to own subsystems end‑to‑end and drive technical direction in your area of ownership.
- The Gateways team owns Workato’s API management, gateway, and routing infrastructure — the layer that sits between external consumers and the platform’s core services.
- Our scope includes the classic API Management (APIM) product, an AI Gateway for LLM traffic management, and an MCP Gateway for Model Context Protocol integration. We operate at high scale, low latency, and with strict availability requirements.
- Design, build, and operate high‑performance gateway and routing components in Go.
- Own technical direction for your area: author design documents, lead architectural reviews, evaluate trade‑offs, and drive decisions to conclusion.
- Build and evolve infrastructure for authentication, caching, rate limiting, request queuing, and traffic shaping.
- Collaborate with SRE, Infrastructure, and Platform teams to meet availability, scalability, and observability requirements.
- Stay current with relevant technologies, protocols, and industry patterns; present findings and proposals for architectural review.
- Deliver features end‑to‑end: from design through production rollout and ongoing maintenance.

Benefits

- Versátil Working Arrangements: We maintain a hybrid remote work model and provide everyone with best‑of‑breed technology tools that enable them to work anywhere, anytime.
- Great Employee Benefits: Such as an Employee Assistance Programme (EAP), Health Insurance, Referral Bonuses, and Workato Stock Options,



tailored to the countries that our employees are based in.
- Professional Development Opportunities: We support individual career ambitions, and set aside training programs and budgets they can tap on to upgrade both soft and hard skills.
- Recreation Time: From virtual game nights to fitness sessions, there’s always time for a little fun on the calendars.
- Dedicated Wellness: We make it a point to dedicate time to pause, recharge and get to know each other better.

Qualifications

- Experience authoring system/architecture design documents and leading technical reviews.
- Ability to identify bottlenecks at both the code level and the system level, and propose pragmatic solutions.
- Solid understanding of large‑scale web infrastructure: load balancers, reverse proxies, application servers, databases, message brokers, caching layers, and observability stacks.
- 5+ years of hands‑on backend development in Go, with strong command of concurrency patterns, performance profiling, and idiomatic design.
- Deep understanding of Go internals: scheduler, garbage collector, memory model, and runtime behavior under load.
- Strong systems programming foundation: understanding of how things work below the application layer.
- BS/MS in Computer Science, Engineering, or equivalent demonstrated experience.




- Proven track record of designing and scaling distributed, highly available systems.
- Deep network knowledge: TCP connection lifecycle, TLS/mTLS handshake and termination, HTTP/1.1, HTTP/2, HTTP/3 (QUIC), WebSocket, SSE.
- Working knowledge of Kubernetes concepts and deployment patterns.
- Applied cryptography: symmetric/asymmetric encryption, certificate chains of trust, key management, signing and verification.
- 10+ years of professional software engineering experience.
- Experience with Docker, container orchestration, and cloud infrastructure (AWS, Azure, or GCP).
- Experience with Redis‑based caching and pub/sub patterns.
- Contributions to open‑source projects.
- Familiarity with AI/LLM serving infrastructure: model proxying, token metering, streaming protocols.
- Integration with third‑party REST/gRPC APIs at scale (throttling, retries, circuit breaking, batch processing).
- Exposure to API gateway or service mesh internals (e.g., Envoy, Kong, custom proxies).
- Reading‑level familiarity with Ruby (on Rails) — the Workato platform core is Ruby‑based and owned by other teams, but integration points require the ability to navigate and understand existing code.
- Comfortable working in a globally distributed team across multiple timezones (the team spans Singapore, Europe, and the US).
- Strong written and spoken English — sufficient for design discussions, code reviews, and cross‑team collaboration.
- Open to experimentation; pragmatic about adopting new technologies.
- Full‑cycle product delivery mindset: from problem framing through production and maintenance.

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📌 Senior Backend Engineer (GO, API Getaways) (Madrid)
🏢 Workato
📍 Madrid