Forward Deployed Engineer

# **About Lago** At Lago, we're on a mission to make Monetization simpler for tech companies. As the leading open-source billing platform, we help businesses build flexible pricing models and scale with confidence. We've raised over **$22 million in funding** from top-tier investors including **Y Combinator and FirstMark**. Our platform has garnered around **10K stars on GitHub**, a testament to our active and growing developer community. Companies such as **PayPal, CoreWeave, Synthesia, and [Mistral.ai](http://Mistral.ai)** choose Lago for their billing. And we have barely spent any money on Marketing or Ads so far. We're a team of ambitious, focused individuals who solve hard problems with excellence and accountability. At Lago, we value **reliability and proactivity**. We trust each other to own tasks, drive them to completion, and continuously improve them. While we encourage you to **try fast and “fail fast”**, we also expect you to **learn fast**: make mistakes, but don't make the same one twice. If you're excited by challenges and want to grow alongside a high-performing, supportive team, this is the place for you. # Overview At Lago, Forward-Deployed Engineers (FDEs) are engineers embedded with customers. They build, integrate, and optimize Lago in production environments: ensuring adoption, scalability, and impact. This role blends engineering depth with delivery ownership and customer collaboration. You’ll write code, deploy systems, and translate real-world use cases into product-ready insights. FDEs are not part of the reactive support queue, and they’re not isolated in core product development. They sit at the intersection of engineering and delivery: the engineers who turn product flexibility into customer success. # **What you’ll be doing** * Own technical delivery for Tier 1 customers: from architecture design to deployment. * Build custom integrations, connectors, and workflows using Lago’s Ruby on Rails APIs, React, and TypeScript stack. * Design data ingestion pipelines and automation scripts (PostgreSQL, Redis, Kafka). * Configure and optimize billing, metering, and event processing setups tailored to customer environments. * Collaborate with Support Engineers on reliability handoffs and Core Engineering on product extensions. * Write reusable code, documentation, and best-practice templates for future implementations. * Surface recurring patterns or feature gaps to Product and Engineering for roadmap input. * Mentor customer teams on Lago’s architecture, SDKs, and deployment patterns. ## **Who you are** * A software engineer/technical expert who thrives in hands-on, customer-facing environments. * Enjoys designing integrations, data pipelines, and technical architectures. * Communicates clearly, balancing technical detail with customer empathy. * Resourceful and comfortable navigating ambiguity. * Eager to work across code, delivery, and customer experience. ## **Who you’re not** * You’re not part of reactive support queues: you plan, build, and deliver. * You’re not detached from customers: you embed and advise. * You’re not limited to writing specs: you ship and document your work. * You’re not chasing short-term fixes: you design systems that scale. # **Requirements** * 4+ years of experience working closely with APIs and SDKs (in Ruby/React would be a bonus but can be multiple languages) * Deep understanding of REST APIs, authentication, and integration patterns. * Strong SQL and data modeling skills (PostgreSQL, Redis, Kafka a plus). * Experience designing and deploying production-ready integrations. * Excellent written and verbal communication skills for both technical and non-technical stakeholders. * Proven ability to manage delivery timelines and coordinate across teams. Nice to have * Experience in technical consulting, professional services, or customer engineering. * Familiarity with Terraform, Docker, or CI/CD environments. * Background in billing, payments, or developer platforms. * Prior contribution to open-source or customer-led product delivery. **Growth path** * Technical: Senior → Core Engineering / Product Architecture. * Cross-functional: Product Manager. * Leadership: FDE Lead → Head of Professional Services / Customer Engineering. FDEs form the bridge between engineering and real-world adoption: turning technical capability into customer outcomes. # Why Join Lago? * Work on a product loved by engineers and product teams * Join a lean and ambitious team building foundational infrastructure * Contribute to an open-source project with real-world impact * Competitive compensation and early equity in a fast-growing company Ready to Build with Us? If you’re excited about joining a high-talent team to solve meaningful problems and help businesses thrive, we’d love to hear from you. Apply today and let’s build something remarkable—together. Location type: Remote Primary Location: Remote Europe Team : GTM Work Type: Full Time/Permanent Contract Salary: 70,000-100,000 EUR per year _(Applicants must be based in the location specified for this role. Applications from other locations will not be considered.)_ Visa sponsorship is offered for this role.