Staff Backend Engineer

BackEnd Engineer | Compliance Team (Remote)

Senior Backend Engineer - TypeScript/Node.js & Production Support

Investigate and resolve production bugs within the TypeScript/Node.js backend while communicating directly with customers to confirm fixes. Improve system reliability by developing internal tools and enhancing existing code to automate problem detection.

Senior Back-end Engineer - PHP, commerce pillar (6-month contract, remote) 11 applicants

You will build, optimize, and maintain robust back-end systems to support financial operations such as tax calculations, VAT processing, and invoicing. Additionally, you will collaborate with product managers and stakeholders to drive technical initiatives and ensure high-quality, scalable code delivery.

Senior Backend Engineer

Design and build highly scalable, resilient, and secure microservices and APIs while integrating business databases with advanced AI engines. Optimize backend service performance for real-time AI model hosting and collaborate with AI engineers to deploy solutions within Docker environments.

Backend Engineer - Fully Remote

You will own the inference and orchestration layer for AI-native applications, building scalable systems that power intelligent features. This includes designing high-performance pipelines, ensuring system observability, and optimizing for latency and cost efficiency.

Senior Back-end Engineer - PHP, Node.js (remote within EMEA) 19 applicants

You will build and maintain reliable, scalable commerce solutions while collaborating closely with product managers to solve complex problems. Your role involves active participation in code reviews, testing, and driving technical initiatives with a strong sense of ownership.

Staff Backend Engineer

You will shape technical direction across teams by solving high-consequence backend problems and establishing architectural standards. You will also mentor senior engineers and partner with leadership to drive long-term technical investments.

Senior Software Engineer, Backend

Design and implement high-performance Elixir/Phoenix-based systems and manage the declarative infrastructure using Kubernetes and Terraform. You will operate the managed cloud platform, focusing on cluster lifecycles, GitOps workflows, and system reliability.

Lead Backend Engineer (Ruby On Rails) - Fully Remote

Lead and mentor a team of 4-5 backend engineers while owning the technical vision and architecture for high-traffic mobile apps. Translate business goals into technical roadmaps and maintain a high-performance Ruby on Rails platform on AWS.

Senior Backend Engineer (Adobe Commerce / Magento) 12 applicants

Lead the design and development of Magento 2 modules, extensions, and integrations for enterprise clients. Collaborate with cross-functional teams to ensure system coherence while setting best practices for quality and scalability.

Staff Software Engineer, Backend (Cluj)

Design, implement, and maintain backend services and APIs to support applications. Collaborate with cross-functional teams to deliver end-to-end solutions.

Staff Software Engineer (AI Backend Services)

The Staff Software Engineer will define the technical strategy and architecture for Python-based AI backend platforms supporting LLM integrations and generative AI pipelines. They will lead cross-functional initiatives to ensure the scalability, security, and operational excellence of large-scale AI applications.

Software Engineer II - Backend - Payments

Design and implement robust services and libraries for payments integration across Kraken's products. Collaborate with cross-functional teams to ensure seamless integration of new features within a large-scale distributed systems architecture.

Software Engineer III, Backend - Protection

You will own end-to-end features for dispute automation and build components for the native rules and signals engine. Additionally, you will contribute to fraud vendor integrations and improve how merchants manage threats at scale.

Senior Software Engineer - Rust - Backend - Pro

Design and implement robust Rust services and libraries to power trading, payments, and crypto experiences. Collaborate on large-scale distributed systems architecture to ensure reliability, performance, and security.

Staff Backend Software Engineer, Insights (Iasi)

Design, implement, and maintain backend services and APIs to support applications while collaborating with cross-functional teams. Monitor and troubleshoot performance issues in distributed systems and databases.

Senior Python Backend Developer / Platform Engineer- remote

Design and develop scalable, secure microservices and cloud-based platform components to support high-performance AI applications. Collaborate with AI engineers to integrate systems, optimize backend performance, and ensure reliable deployment in containerized environments.