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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 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 and working alongside people who already set the standard for what great looks like in this function at Lago.

What you'll be doing

Pre-sales (primary focus)

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

Post-sales (secondary focus)

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

Who you are

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

Who you're not

You're not someone who reads from a slide deck and escalates anything technical to engineering
You're not indifferent to whether a deal closes or a customer goes live — you feel ownership over both outcomes
You're not a siloed individual contributor — you share context freely, write things down, and loop in the right people early
You're not passive in post-sales: a customer who's stuck is a customer who churns, and you move quickly to prevent that

Requirements

5+ years in a Solutions Engineering, Sales Engineering, or technical pre-sales role — ideally in a developer tools, API-first, or infrastructure SaaS company
Strong technical foundation: comfortable with REST APIs, JSON, SQL, and working through integration architectures
Demonstrated experience running complex evaluations and POCs with enterprise or mid-market prospects
Excellent written and verbal communication skills; fluent in English (French is a significant plus for European accounts)
Track record of collaborating closely with AEs and founders in a fast-moving sales environment
Ability to manage multiple active deals and customer implementations simultaneously without dropping the ball

Nice to have

Experience with billing, usage-based pricing, fintech, or revenue infrastructure
Familiarity with scripting (Python, bash, JS) for demo environment setup or automation
Background in post-sales implementation or customer success engineering
Exposure to open-source products or developer communities
Experience presenting to both engineering and finance/executive audiences

How we work

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

Why Join Lago?

Work with top-tier international talent: Join a team that values excellence, slope over intercept, and accountability. We have convinced top-tier investors and companies to trust us with mission-critical systems like billing. We have 12+ nationalities on the team and are building a global company with a global culture.
Shape the future of monetization and fintech: The world is changing. Monetization systems are shifting with AI, and you will be at the forefront of this revolution.
Fully remote: Work from anywhere in Europe
Competitive package: Competitive salary and stock options
Make an impact: Your work will directly shape how customers like Mistral, Groq, Synthesia, and established enterprises monetize and grow.

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 Europe. Applications from other locations will not be considered.)

1a:T2648,

About Lago

At Lago, we're on a mission to make Monetization simpler for tech companies.

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 an Engineering Squad Lead to take full ownership of one of the focused domains here at Lago: shipping features, keeping production healthy, and coordinating the team around you.

This is a role that blends hands-on technical contribution with operational leadership. You'll stay close to the code while also being the person who keeps the squad moving: scoping work with Product, unblocking engineers, owning production incidents, and making sure the team is building with quality and velocity.

You won't be handed a fully-formed system to maintain. Lago is a fast-moving product in a complex domain, billing infrastructure where precision and reliability genuinely matter. You'll need to make sound architectural decisions quickly, communicate trade-offs clearly, and hold a high bar without slowing the team down.

What you'll be doing

Technology

Share technical authority with the Staff Engineer for your squad's domain: evaluate trade-offs together and drive architecture decisions
Stay hands-on: code review, prototyping, contributing to critical paths
Maintain code quality and review standards within the squad
Own the code health of your domain

Delivery

Own the squad's roadmap execution for the quarter
Run sprint planning, keep work moving, and unblock engineers day-to-day
Ensure the squad is prepared for biweekly product demos and decide who presents
Act as the primary engineering point of contact for Product: scope features, communicate trade-offs, and align on priorities

Production

Own production health for your squad's domain: monitor dashboards (Grafana, Sentry), respond to alerts, and resolve incidents
Triage and resolve customer-reported issues within SLA targets, working in coordination with Customer Success
Monitor and address CVEs and security vulnerabilities within your domain

People

Coordinate a squad of up to 10 engineers
Run operational 1:1s, give day-to-day feedback, and flag performance signals to the Head of Engineering
Coordinate the onboarding of new team members into the squad

Process

Define and adjust the squad's ways of working: balancing agility and discipline as the team and product evolve
Drive engineering excellence: track DORA metrics, reduce cycle time, raise the quality bar
Continuously improve how the squad works based on team feedback and results

Who you are

A credible technical leader who can collaborate closely with engineers because you're still in the work
A clear communicator who can scope a feature with a PM, explain a production incident to a non-technical stakeholder, and give direct feedback to an engineer — all in the same week
Operationally strong: you keep the trains running without needing a system to tell you what needs attention
Someone who cares about team health as much as delivery — you notice when an engineer is stuck or disengaged and do something about it
Comfortable holding a high quality bar in a fast-moving environment: you know when to move quickly and when to slow down and do it right

Who you're not

You're not someone who manages from a distance, you stay close to the work and the people doing it
You're not a blocker — decisions get made, trade-offs get communicated, and the team keeps moving
You're not indifferent to production — a customer incident or a flaky dashboard bothers you until it's resolved
You're not a siloed thinker — you collaborate across squads, with Product, and with CS without needing to be asked

Requirements

8+ years of software engineering experience (ideally 2/3+ in a Squad or Tech Lead position), with a strong command of backend systems and production environments
Track record of shipping reliable, high-quality software in a fast-moving product company
Comfortable working in a complex technical domain: distributed systems, APIs, data integrity, or similar
Strong communication skills — written and verbal, with the ability to bridge engineering and product effectively
Experience owning production: incident response, monitoring, on-call, SLA ownership
Recent experience working with a Ruby on Rails codebase

Nice to have

Experience in billing, fintech, or usage-based pricing infrastructure
Familiarity with DORA metrics and engineering effectiveness frameworks
Background working in or contributing to open-source projects
Exposure to developer tooling or API-first product companies

Why Join Lago?

Work with top-tier international talent: Join a team that values excellence, slope over intercept, and accountability. We have convinced top-tier investors and companies to trust us with mission-critical systems like billing. We have 12+ nationalities on the team and are building a global company with a global culture.
Shape the future of monetization and fintech: The world is changing. Monetization systems are shifting with AI, and you will be at the forefront of this revolution.
Fully remote: Work from anywhere in Europe
Competitive package: Competitive salary and stock options
Make an impact: Your work will directly shape how customers like Mistral, Groq, Synthesia, and established enterprises monetize and grow.

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: Product Engineering

Work Type: Full Time/Permanent Contract

(Applicants must be based in Europe. Applications from other locations will not be considered.)

1b:T2099,

About Lago

At Lago, we're on a mission to make Monetization simpler for tech companies.

If you're excited by challenges and want to grow alongside a high-performing, supportive team, this is the place for you.

The Role

As a Technical Account Executive, you’ll play a crucial role in connecting our platform to our customers’ needs. You don’t need an engineering degree or years of coding experience, but you do need curiosity, the ability to learn quickly, and a drive to become an expert in Lago’s product.

You’ll guide customers through their journey—from the first contact to onboarding—helping them unlock the full potential of our platform. Your role will involve simplifying technical concepts, solving problems creatively, and championing Lago’s open-source ethos.

What You’ll Be Doing

Build and own your pipeline: Prospect, qualify, and progress opportunities from first touch through signed contract — this is a quota-carrying role, and your pipeline is yours to build.
Run the full sales cycle: Lead negotiations, manage multiple stakeholders (technical and financial buyers), and close deals.
Become a product expert: Dive into our documentation, learn how Lago works, and use that knowledge to help customers succeed.
Help customers win: Lead demos, guide proof-of-concepts, and ensure customers see the value of Lago.
Simplify technical concepts: Break down APIs, integrations, and billing workflows into clear, actionable steps for customers.
Forecast with accuracy: Keep an honest, current view of your pipeline so the team can plan around it.
Collaborate with excellence: Work closely with our engineering, product, and marketing teams to ensure a seamless customer experience.
Represent open source: Show customers why Lago's open-source approach gives them control, transparency, and a better way to scale their business.

Who You Are

A closer: You know how to build urgency, handle objections, and drive a deal to signature without losing the relationship.
Eager to learn: You don't need to be a technical expert on day one, but you're excited to pick up new skills and dive into our product.
A clear communicator: You can explain complex ideas in simple, relatable ways for both technical and non-technical audiences.
Ambitious and accountable: You aim for excellence while owning your work and driving it to completion.
Reliable and proactive: You take initiative, solve problems creatively, and thrive in a dynamic environment. You won't expect to bring other people in each meeting (unless absolutely necessary) and take great pride in being able to say things such as "I got it, I've anticipated it and here's what I've already prepped."

What We Value

Talent density: We prioritize hiring exceptional people who raise the bar for everyone around them.
Velocity of execution: We move fast and value individuals who can make things happen without sacrificing quality.
Learn fast: We encourage you to fail fast but expect you to learn fast—embracing mistakes as part of growth but ensuring they aren’t repeated.
Doing what you say (you’ll do) and telling what you do: Accountability and proactive communication are key to succeeding in our geographically distributed, flexible processes.
Open-source ethos: Transparency and collaboration aren’t just values; they’re how we operate.

Who You’re Not

Afraid of learning technical concepts: You don’t need to code, but understanding the basics of APIs and integrations is key (and we’ll support you).
Looking for a laid-back environment: We value focus, ambition, and high standards—this is a place for growth, not routine.
Reliant on rigid playbooks: This role is about creativity and adapting to the customer, not following a script.

Why Join Lago?

Work with top-tier international talent: Join a team that values excellence, slope over intercept, and accountability. We have convinced top-tier investors and companies to trust us with mission-critical systems like billing. We have 12+ nationalities on the team and are building a global company with a global culture.
Shape the future of monetization and fintech: The world is changing. Monetization systems are shifting with AI, and you will be at the forefront of this revolution.
Fully remote: Work from anywhere in Europe
Competitive package: Competitive salary and stock options
Make an impact: Your work will directly shape how customers like Mistral, Groq, Synthesia, and established enterprises monetize and grow.

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: 120k-150k EUR per year (OTE)(Flex is possible for the right candidate)

1c:T2324,

About Lago

At Lago, we're on a mission to make Monetization simpler for tech companies.

If you're excited by challenges and want to grow alongside a high-performing, supportive team, this is the place for you.

The Role

As a Senior Account Executive, you'll own the full commercial relationship with the companies that need Lago most: engineering-led, technically complex organisations navigating a fundamental change to how they bill their customers.

This is not a role for someone who thrives on repetition. Every deal at Lago is different. You'll be navigating multi-stakeholder buying decisions that span engineering leads, product managers, CFOs, and C-suite — often simultaneously — while building genuine trust as a credible expert, not just a vendor.

We're looking for someone who has spent years orchestrating complexity in a consulting environment and is now ready to own a commercial outcome. You understand how to map an organisation, align stakeholders, and bring structure to ambiguity. What you'll be building here is the instinct to close — and the satisfaction of owning a number.

You'll be based in Paris, but still working closely with our CEO and GTM team in the USA, resulting in meaningful exposure to our US customer base.

What You'll Be Doing

Own the pipeline end-to-end: Qualify, progress, and close opportunities from initial contact through commercial negotiation and signed contract. You won't be cold calling or building the pipe, you will be expected to chase, follow up, and drive deals to a decision.
Become a genuine product expert: Understand Lago's product architecture, open source positioning and pricing model well enough to hold a credible conversation with an engineering lead. You don't need to code, but you do need to care about the product deeply.
Navigate complex buying environments: Map stakeholder landscapes across engineering, product, finance, and executive teams. Build the relationships and create the internal alignment that gets deals done. Complex sale requires strong project management skills.
Run structured discovery: Go deep into a prospect's current billing infrastructure, understand their pain, and connect it clearly to what Lago solves. This is consultative selling — the quality of your diagnosis matters as much as your pitch.
Lead demos and proof-of-concepts: Present Lago's value in a way that lands for both technical and business audiences. Adapt your approach to the room.
Feed the feedback loop: Work closely with Product and Engineering to surface what you're hearing from prospects. At Lago's stage, what you learn in deals shapes what we build.
Represent Lago externally: You'll be one of the faces of Lago for prospective customers. How you show up — prepared, sharp, curious — reflects directly on the company.

Who You Are

You've spent 5–10 years at an IT or digital transformation consultancy, working on complex implementation projects for large organisations — not pure strategy. You've built deliverables, managed client relationships, navigated internal politics, and produced work that had to be right.
You've had commercial exposure: You've been involved in pricing proposals, account expansion conversations, or bid teams. You know what it feels like to have something at stake in a client relationship.
Your English is near-native: Most of our customers are based in the US or are English-speaking. You're as comfortable in a written async thread as you are on a video call, and your written communication is precise and polished.
You're technically curious: You don't need an engineering background, but you need to genuinely want to understand how Lago works — APIs, billing infrastructure, pricing logic. If you're the kind of person who reads the docs before asking a question, you'll fit in.
You bring structure to ambiguity: Lago's sales process isn't a rigid playbook. You'll need to build your own map in each deal and know when to move fast and when to slow down.
You want to own something commercially: This might be your first sales role, or close to it. That's fine — what matters is that you're actively choosing to move toward ownership and commercial accountability, not drifting into it.

Who You're Not

From a tier-1 strategy consultancy where the brand did the selling: We're not looking for someone who's pitched McKinsey decks to pre-warmed boardrooms. We need someone who's had to earn credibility from scratch.
Uncomfortable with the idea of following up: Closing requires chasing. If the idea of sending a third follow-up email makes you uncomfortable, this role will be a stretch.
Looking for a scripted, repeatable process: Every deal at Lago is different. If you need a rigid playbook to feel confident, this isn't the right environment.
Uninterested in the product: Lago sells to technical buyers. If you can't get excited about billing infrastructure and open-source software, that gap will show up in every conversation.

Why Join Lago?

A genuinely differentiated product: Lago is the leading open-source billing platform on the market. Our customers choose us because we're architecturally different, not just cheaper. That's an easier and more interesting thing to sell.
Real ownership from day one: You'll work directly with our CEO. What you do will have immediate impact — there's no layer of management between you and the decisions that matter.
US exposure as a French hire: Our prospective customers are predominantly US-based. You'll be operating across time zones and building relationships with some of the fastest-growing technology companies in the world — from France.
Competitive package: Base salary + variable (OTE) + equity. We'll talk specifics with the right candidate.

📍 Location: France

🏢 Team: GTM

📄 Contract: Full-Time / Permanent

(Candidates must be based in France to apply for this role. Any applications received from outside of the location will be automatically rejected)

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Role	Company	Location	Season	Posted
Solutions Engineer	Lago	EuropeRemote	—	14 days ago
Engineering Squad Lead	Lago	EuropeRemote	—	3 months ago
Technical Account Executive	Lago	EuropeRemote	—	3 months ago
Senior Account Executive (with Consulting Background)	Lago	FranceHybrid	—	3 months ago