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Mollie is a European payments and money management platform serving 250,000+ businesses across 14+ locations. This Sales Engineer I role is based in Warsaw and supports Mollie's Poland and Central/Eastern Europe commercial team.
You will sit at the intersection of technology and business, serving as the technical voice for the Poland sales team during the pre-sales phase. Your responsibilities include:
- Building custom technical demos and solution pitches tailored to specific customer problems using tools like Postman and AI, showcasing Mollie's API capabilities in compelling, relevant ways
- Conducting deep technical discovery across complex customer cases from initial qualification through contract signature, ensuring deals are grounded in thorough understanding of customer environments
- Developing scalable solutions architecture for mid-to-upmarket customers, focusing on custom API integrations rather than standard implementations
- Collaborating with the CSM team on upsell and revenue initiatives, contributing technical expertise to identify growth opportunities in existing accounts
- Delivering knowledge-sharing sessions and internal training on Mollie products and the payments market to raise the technical bar across sales and commercial teams
- Executing structured handovers to post-sales implementation teams at contract signature, ensuring clean transitions that set customers up for success
You will own the full customer lifecycle from initial discovery through deal closure, going deep on complex integrations rather than off-the-shelf implementations. This role sits within a newly formed professional services structure with real autonomy, dedicated leadership focused on craft and efficiency, and direct access to product teams. You are joining at a pivotal moment as Mollie moves upmarket into more complex deal cycles and builds out Sales Engineering as a centre of excellence.
REQUIREMENTS:
- 2 to 3 years of experience in sales engineering, solutions engineering, or pre-sales technical roles, ideally with an engineering background (mechanical, software, or similar)
- Solid understanding of APIs and REST APIs with hands-on experience using Postman to build and demonstrate integrations
- Fluency in Polish and English with strong communication and presentation skills to translate complex technical concepts for both technical and non-technical stakeholders
- Proven ability to bridge business and technology perspectives, turning difficult technical problems into clear product solutions and pitching confidently to customers
- Strong stakeholder management skills to work effectively across internal teams and with customers at varying seniority levels, including experience using AI in demos or pitches
- Experience in SaaS, e-commerce, or fintech environments with exposure to external customers and merchant interactions (strongly desired)
