Solutions Engineer

Overview

Job Description

Responsibilities

• - Run technical discovery calls to understand prospects' pricing models, billing infrastructure, and integration requirements
• - Lead and own product demos — building bespoke demo environments tailored to each prospect's use cases, not off-the-shelf scripts
• - Manage technical evaluations and cloud trials end-to-end: configure demo data, set up trial environments, run technical workshops, and stay close to the prospect throughout
• - Write clear, honest deal debriefs that capture what landed, what's at risk, and what actions are needed — shared with the AE and founder team
• - Surface and work through product gaps creatively: propose API-level workarounds, validate feasibility with engineering, and frame limitations transparently without losing deals
• - Produce competitive technical analysis and maintain battle cards as Lago's market position evolves
• - Partner with AEs on commercial strategy: know when to push for a close, when to escalate to a founder, and how to sequence the conversation
• - Lead onboarding for new customers — both their engineering teams (API integration, event schema, webhooks) and their finance and ops teams (plan configuration, invoice flows, reporting)
• - Serve as the primary technical point of contact through the implementation phase, owning the customer relationship until they go live
• - Conduct proactive check-ins and syncs throughout implementation to unblock customers and prevent issues before they escalate
• - Identify expansion and optimisation opportunities within existing accounts as usage matures
• - Partner with Customer Success and Support to ensure a clean handoff after go-live
• - Feed recurring implementation pain points back to Product and Engineering to inform roadmap prioritisation

Required Skills

• - A strong technical generalist who can read API documentation, write a curl command, debug a webhook, and explain the result to a VP of Finance in the same afternoon
• - A natural deal-shaper — you understand commercial dynamics and help AEs close by removing technical blockers, not by just answering questions
• - Someone who writes thorough, clear post-call debriefs without being asked: every prospect interaction generates signal for the team
• - Comfortable with ambiguity: you don't have a perfect answer for every gap, but you're good at finding one that keeps the deal alive and serves the customer well
• - Genuinely curious about how billing and pricing systems work — the nuances of metering, aggregation, invoice generation, and revenue recognition interest you
• - Proactive about internal tooling and process: if you can script or automate something that saves the team time, you do it

Benefits

• - Work with top-tier talent: Join a team that values excellence, ambition, and accountability
• - Shape the future of fintech: Be part of a fast-growing company building the best open-source billing platform
• - Remote-first in Europe: Work from anywhere in Europe
• - Competitive package: Competitive salary and stock options
• - Make an impact: Your work will directly influence deals and customers at companies like PayPal, CoreWeave, Synthesia, and Mistral.ai