Lago
SaaS
SolutionsEngineer
Neural analysis suggests this role is
optimal for Mid+ candidates.
“Solutions Engineer at Lago. Skills: Pre-sales, Post-sales, Billing systems, Pricing models. Run technical discovery calls. Understand pricing models”
What You'll Achieve.
Ensure customers get to production; Ensure customers see value; Keep deal alive; Serve customer well
Industry & Context.
Solve hard problems; Find answers; Troubleshoot
Based in Europe
What They're Looking For.
Must Have
Technical generalist, Read API documentation, Write curl command, Debug webhook, Explain results to VP Finance, Write clear post-call debriefs, Comfortable with ambiguity, Curious about billing systems, Proactive about internal tooling
Nice to Have
Experience with billing, Usage-based pricing experience, Fintech experience, Revenue infrastructure experience, Scripting experience, Python scripting, Bash scripting, JS scripting, Demo environment setup, Automation scripting, Post-sales implementation background, Customer success engineering background, Open-source products exposure, Developer communities exposure, Presenting to engineering audiences, Presenting to finance audiences, Presenting to executive audiences, French language fluency
What You'll Do.
Run technical discovery calls
Understand pricing models
Understand billing infrastructure
Understand integration requirements
Build bespoke demo environments
Manage technical evaluations
Set up trial environments
Run technical workshops
Stay close to prospect
Capture what's at risk
Capture needed actions
Surface product gaps creatively
Propose API workarounds
Validate feasibility with engineering
Frame limitations transparently
Produce competitive technical analysis
Maintain battle cards
Partner with AEs on commercial strategy
Know when to push for close
Know when to escalate
Sequence the conversation
Lead onboarding for new customers
Integrate customer APIs
Configure customer plans
Configure customer invoice flows
Configure customer reporting
Serve as technical point of contact
Own customer relationship until go-live
Conduct proactive check-ins
Conduct syncs throughout implementation
Prevent issues escalation
Identify expansion opportunities
Identify optimisation opportunities
Partner with Customer Success
Ensure clean handoff after go-live
Feed pain points back to Product
Feed pain points back to Engineering
How You'll Work.
Team & Collaboration
Work with AE team; Work with co-founders; Work with product; Collaborate with AEs; Collaborate with founders; Work with engineering; Work with Customer Success; Work with Support
Communication Scope
Written communication; Verbal communication; Fluent English; Technical documentation; Executive presentations
Process & Methodology
Manage deals, Manage implementations
Full Job Description
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 We're hiring a Solutions Engineer in Europe to be the technical backbone of our GTM motion — from first demo to successful go-live and beyond. This is a dual-focus role: pre-sales first, where you help prospects evaluate and understand Lago deeply, and post-sales second, where you ensure the customers who sign with us get to production and see value. You will work directly with our AE team, co-founders, and product to shape deals and guide implementations. This isn't a classic SE role where you polish the same demo script for every prospect. Every billing architecture is different, every contract is custom, and every customer has gaps you'll need to bridge creatively. You'll need to go deep — technically and commercially — to help prospects understand what's possible in Lago and translate that into real, working configurations. You'll be joining a small, high-ownership team a
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