Senior Backend Engineer

Welcome to Chargeflow

Chargeflow is at the forefront of fintech + AI innovation, backed by leading venture capital firms. Our mission is to build a fraud-free global commerce ecosystem by leveraging the newest technology, freeing online businesses to focus on their core ideas and growth. We are building the future, and we need you to help shape it.

Who We're Looking For - The Dream Maker

We're in search of an exceptional Senior Backend Engineer, someone with a wealth of hands-on software engineering expertise. As part of our core product team, you'll be at the forefront of crafting a groundbreaking solution that leverages cutting-edge technology to combat fraud. Our ultimate goal is to equip our clients with resilient safeguards against chargebacks, empowering them to safeguard their revenue and optimize their profitability. Join us on this thrilling mission to redefine the battle against fraud.

Your Arena

• Take a senior role in the team of talented engineers, share your experience and demonstrate your expertise building our market-leading product
• Design and implement the infrastructure of the system including the ingestion, algorithms, performance optimizations, and interactive applications
• Build a highly scalable data platform for diversified and complex data flows
• Have end-to-end ownership: Design, build, ship, measure, and maintain our backend services. You build it - you own it
• Work closely with our fantastic Product team that created an industry-leading SaaS Product-Led-Growth offering
• Join us in building a professional, fun company and engineering culture with the highest standard.

What It Takes:

• 7+ years of experience building production-grade backend systems, with deep expertise in TypeScript and Node.js - Must
• Strong track record designing and evolving distributed, event-driven architectures (microservices, asynchronous systems, serverless where appropriate) - Must
• Experience building cloud-native systems on AWS, with a strong understanding of tradeoffs in scalability, reliability, and cost - Must
• Hands-on experience using Kafka in real production environments, with strong understanding of internals (partitioning, ordering, consumer groups, delivery semantics, scaling, failure modes) - Must
• Practical experience with Docker-based workflows and modern containerized development practices - Must
• Familiarity with Kubernetes (including EKS) and/or ECS, and understanding how services behave when deployed and scaled in container orchestration environments - Must
• Strong experience working with both NoSQL (MongoDB) and relational databases (Postgres), with clear understanding of data modeling and tradeoffs - Must
• B.Sc. in Computer Science or equivalent experience

(AI-driven engineering practices)

• Experience using AI-assisted development tools (ChatGPT, Claude, GitHub Copilot, Cursor, etc.) as part of daily engineering workflows - Must
• Experience leveraging LLMs to improve productivity in coding, design exploration, technical writing, and analysis - Must
• Familiarity with LLM APIs (OpenAI, Anthropic, etc.) and having built small tools or integrations using them
• Ability to critically assess AI-generated output and apply strong engineering judgment
• Interest in emerging AI tooling and how it can enhance, not replace, strong software engineering practices

Our Story

Chargeflow is a leading force in fintech innovation, tackling the pervasive issue of chargeback fraud that undermines online businesses. Born from a deep passion for technology and a commitment to excel in eCommerce and fintech, we've developed an AI-driven solution aimed at combating the frustrations of credit card disputes. Our diverse expertise in fintech, eCommerce, and technology positions us as a beacon for merchants facing unjust chargebacks, supported by a unique success-based approach.

Backed by $49M led by Viola Growth, OpenView, Sequoia Capital and other top tier global investors, Chargeflow has embarked on a product-led growth journey. Today, we represent a tight-knit community of passionate individuals and entrepreneurs, united in our mission to revolutionize eCommerce and fight against chargeback fraud, marking us as pioneers in protecting online business revenues.