Financial & Insurance

Scaling a B2B Buy Now Pay Later Ecosystem

Our Client’s Backstory

Our client is a German fintech startup dedicated to transforming the B2B payment landscape. Recognizing the friction in traditional corporate procurement, they set out to bring the "Buy Now, Pay Later" (BNPL) convenience of B2C commerce to the e-commerce B2B space. Their platform enables business customers to purchase goods instantly while offering flexible installment plans, driving higher conversion rates for suppliers and wholesalers. Since its launch in 2021, the company has evolved into a significant player in the $100 billion BNPL industry.


The Challenges

Building a disruptive fintech platform from the ground up required navigating the volatility of a fast-scaling startup. Key challenges included:

  • Rapid International Expansion: Adapting the platform to support entry into five different international markets within a single year.

  • Architectural Agility: Redesigning team structures and technical processes to keep pace with explosive user growth and shifting priorities.

  • Real-Time Risk Mitigation: Engineering a secure system capable of performing instant KYC verification and background checks against credit agencies and banks.

  • Stakeholder Orchestration: Harmonizing the needs of diverse users, including B2B buyers, merchants, wholesalers, and internal administrative teams.


Solutions

Klika joined the startup’s core engineering team at the foundational stage, providing both technical expertise and delivery management. Our solution included:

  • Automated Credit Engine: Developed a specialized "Buyer Application" that integrates with credit rating agencies and banks to run real-time background checks and automated fund approvals.

  • Merchant Intelligence Portal: Architected a portal for wholesalers and merchants, featuring an integrated order management system and automated dunning/collection workflows.

  • Consumer-Grade B2B Checkout: Engineered a high-conversion checkout widget that can be seamlessly integrated into any third-party e-commerce platform.

  • High-Security Identity Framework: Built a reliable KYC and user validation system to handle sensitive financial data while ensuring full regulatory compliance.

  • Internal Administrative Suite: Developed a centralized admin portal to streamline cross-departmental collaboration and provide visibility into global transactions.

  • Strategic Agile Leadership: Implemented an elastic agile methodology to shorten time-to-market and ensure development quality during rapid scaling phases.


The Results

The technical foundation engineered by Klika has empowered the startup to achieve market milestones and an impressive valuation.

  • €230 Million Valuation: The platform’s stability and scalability were instrumental in the company reaching a market valuation of €230 million.

  • Five-Country Global Footprint: Successfully launched and scaled the BNPL service across five international markets, serving thousands of B2B customers.

  • Zero-Friction B2B Liquidity: Enabled thousands of businesses to access larger funds instantly with transparent installment options and zero hidden fees.

  • Ongoing Strategic Partnership: Klika remains an integral part of the core engineering team, leading continuous feature innovation, Kafka-driven data streaming, and advanced visualization models.


Technology Stack

TypeScript, React, Ruby, PostgreSQL, Amazon Web Services (AWS), Kafka, Docker, Datadog, Metabase, Sentry

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Subscribe to our newsletter to keep up with the latest news from the world of technology and AI.

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Techtonic Newsletter

Subscribe to our newsletter to keep up with the latest news from the world of technology and AI.

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Techtonic Newsletter

Subscribe to our newsletter to keep up with the latest news from the world of technology and AI.

Certifications & Awards

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Stay in Touch

Follow us on social media to catch a glimpse of our KLIKA adventures.

© 2026 Klika LLC