Senior Node Backend developer (LLM, Kubernetes, AWS)

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#node #llm #remote

Senior Node Backend developer (LLM, Kubernetes, AWS)

Salary is up to 6500 USD gross (can be 7000 usd gross for candidates with Teach Lead experience)

FULL-TIME, REMOTE, b2b contract, location of the candidate and legal entity, bank account of the candidate – outside of Russia, Belarus and Turkey

https://www.chargeflow.io/

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.

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 – (5+ years with 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

B2 English

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