• Lago is on a mission to simplify Monetization for tech companies.
• It is the leading open-source billing platform helping businesses build flexible pricing models and scale confidently.
• Lago has raised over $22 million in funding from investors including Y Combinator and FirstMark.
• The platform has around 10K stars on GitHub, indicating an active developer community.
• Customers include PayPal, CoreWeave, Synthesia, and Mistral.ai.
• The team values reliability, proactivity, ownership, and continuous improvement.
• The company encourages trying fast, failing fast, and learning fast.

Role Overview:

• Hiring a Solutions Engineer in Europe as the technical backbone of GTM motion from demo to go-live and beyond.
• Dual-focus role: primarily pre-sales (help prospects evaluate Lago) and secondarily post-sales (ensure customers reach production and see value).
• Work closely with AE team, co-founders, and product to shape deals and guide implementations.
• Role requires deep technical and commercial understanding to customize demos and configurations for each customer.

Key responsibilities include: Pre-sales:

• Technical discovery calls on pricing models, billing infrastructure, integration needs.
• Lead bespoke product demos tailored to prospect use cases.
• Manage technical evaluations and cloud trials end-to-end.
• Write deal debriefs capturing risks and next steps.
• Address product gaps creatively with engineering collaboration.
• Produce competitive technical analysis and maintain battle cards.
• Partner with AEs on commercial strategy.

Post-sales:

• Lead onboarding for engineering teams (API integration) and finance/ops teams (plan configuration).
• Primary technical contact through implementation until go-live.
• Proactive check-ins to unblock customers and prevent issues.
• Identify expansion/optimization opportunities in accounts.
• Partner with Customer Success/Support for smooth handoff after go-live.
• Provide feedback to Product/Engineering on implementation pain points.

Candidate profile:

• Strong technical generalist comfortable with APIs, debugging webhooks, explaining technical details to finance executives.
• Natural deal-shaper who removes technical blockers to close deals.
• Writes thorough post-call debriefs proactively.
• Comfortable with ambiguity; finds solutions that keep deals alive.
• Curious about billing/pricing system nuances like metering, aggregation, invoicing, revenue recognition.
• Proactive about tooling/process improvements via scripting or automation.

Requirements:

• 5+ years in Solutions Engineering or similar roles in developer tools/API-first/infrastructure SaaS companies.
• Strong foundation in REST APIs, JSON, SQL; experience with complex evaluations/POCs for enterprise or mid-market clients.
• Excellent English communication; French is a plus for European accounts.
• Experience collaborating closely with AEs/founders in fast sales environments.
• Ability to manage multiple deals/implementations simultaneously.

Nice to have:

• Experience with billing, usage-based pricing, fintech or revenue infrastructure
• Scripting skills (Python, bash, JS)
• Post-sales implementation or customer success engineering background
• Exposure to open-source products or developer communities
• Experience presenting to engineering and finance/executive audiences

Work culture:

• Written async-friendly culture
• Direct access to Product/Engineering teams
• Transparent user-driven roadmap
• Autonomy and ownership from Day 1

Why join Lago?

• Work with top-tier international talent across 12+ nationalities
• Shape future of monetization & fintech amid AI-driven changes
• Fully remote work from anywhere in Europe
• Competitive salary (60k–90k EUR/year) plus stock options
• Make direct impact on customers like Mistral, Groq, Synthesia