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We are looking for a Node.js Developer to join our team and help build and maintain scalable backend services. You will be responsible for designing, developing, and optimizing backend solutions using Node.js, TypeScript, and frameworks like Express and NestJS. The ideal candidate has strong technical expertise in building REST APIs, managing asynchronous processes, and ensuring security and performance best practices. The ideal candidate will be a strategic thinker, a data-driven developer, and an expert in frontend technologies within the payments sector. We value professionals with strong Test-Driven Development (TDD) skills and the ability to mentor and collaborate effectively with other developers.Macropay is a fintech leader in payment orchestration, providing businesses with seamless access to global payment solutions for over four years. Specializing in revenue optimization, we offer card processing and alternative payment methods enhanced by smart routing, fraud prevention, and an intuitive dashboard. Backed by a team of payment and fraud experts, our all-in-one platform is designed to maximize revenue, reduce costs, and improve the payment experience—all through a single API integration.Responsibilities: Develop and maintain backend services using Node.js and TypeScript. Design and implement RESTful APIs that are efficient, scalable, and maintainable. Work with asynchronous programming paradigms and apply best practices to avoid pitfalls. Actively participate in the design and development of the payment system, addressing edge cases such as failures, retries, concurrency issues, and ensuring a consistent and seamless user experience. Ensure security compliance, authentication, and authorization between multiple systems and environments. Design database schemas that effectively support business processes. Collaborate with frontend developers to integrate user-facing elements with backend logic. RequirementsBring proven experience in the payments, banking, or FinTech industry, with a solid understanding of industry-specific challenges and requirements. Have 5+ years of experience in frontend development. Strong proficiency in JavaScript and TypeScript. Hands-on experience with Node.js frameworks such as Express and NestJS. Experience building and consuming REST APIs. Knowledge of asynchronous programming, event-driven architecture, and microservices. Experience with authentication & authorization mechanisms (JWT, OAuth, session management). Strong understanding of scalability principles for distributed applications. Experience in database integration (SQL and NoSQL) and designing efficient schemas. Knowledge of security best practices, including data protection, encryption, and compliance. Demonstrate exceptional problem-solving skills, with a focus on scalability, performance, and security. Hands-on experience with automated testing frameworks (Jest, Mocha, etc.). Familiarity with Git for version control and collaborative development. (Nice to have) Experience with AWS. BenefitsCompetitive salary and comprehensive benefits package. Opportunity to shape HR strategy for a global, innovative fintech company. Professional development opportunities and resources. A collaborative, inclusive, and dynamic work culture. Full Remote Work. Join us in an environment where you're free to innovate, learn, and grow alongside passionate professionals. At Macropay, you'll tackle exciting challenges and be part of a vibrant team dedicated to delivering exceptional user experiences.Equal Employment Opportunity EmployerMacropay is an Equal Employment Opportunity (EEO) Employer, which means we encourage applications from people with different backgrounds, interests, and personal circumstances. Our team welcomes applicants regardless of their race, gender, age, religion, nationality, sexual orientation, and/or disabilities. All we need is your high energy, skills, and willingness to be part of a great project!The personal data you provide will be used to manage and process your candidacy for the corporate selection processes that fit your profile. If you wish you can exercise your rights of access, rectification or cancellation by sending a letter to Carrer de la Diputació 211, bajos, 08011, Barcelona (Spain), or emailing us at protecciondedatos@macropay.com , including a document that validates your identity.
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Analyze threat actor behavior and abuse patterns.
Research, prototype, and implement abuse detection techniques.
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Develop AI model serving infrastructure
Collaborate for successful deployment
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Design, build, and maintain distributed backend systems
Work closely with product and engineering peers
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Translate ideas into engineering solutions
Own end-to-end project delivery
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Lead the implementation of new features and enhancements
Design, develop, and maintain front-end apps
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Design and maintain cloud infrastructure with AWS/Azure/GCP
Automate provisioning using Terraform
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Drive architectural vision for login flow and Auth0 management.
Lead major technical projects across teams.
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Act as a customer's technical advocate and extend their team.
Implement Fastly products post-sales and document configurations.
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Own and evolve the compute platform to support all workloads.
Hire exceptional engineers and invest in their growth.
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Design and architect Accounting Platform systems
Mentor engineers and ensure quality standards
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Design and develop data pipelines using Python, Spark, Databricks, SQL, and SSIS.
Implement ETL/ELT workflows with Apache Airflow and SSIS.
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Define infrastructure architecture and address technical challenges.
Lead complex initiatives across multiple teams.
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Analyze threat actor behavior and abuse patterns
Research, prototype, and implement abuse detection techniques
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Design, build, and maintain scalable distributed backend systems
Work closely with product and engineering peers to shape product decisions
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Develop state-of-the-art voice cloning techniques
Implement low latency and cost-effective text-to-speech solutions
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Design and build scalable backend systems and APIs
Enable audience creation, segmentation, and activation on Twilio's data platform
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Design, develop, and maintain Ruby on Rails web apps.
Translate product requirements into scalable technical solutions.
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Provide technical leadership on automation-first customer problems
Bridge customer operations, AI, and platform teams for scalable solutions
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Deliver DoD software using Agile methodology
Build applications with Python, FastAPI, and React
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Lead database solution direction
Implement scalable database solutions
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Analyze threat actor behavior and abuse patterns for detection.
Implement state-of-the-art LLM-driven techniques for abuse prevention.
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Developing and maintaining AI model serving infrastructure
Implementing high availability applications on Kubernetes
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Design, build, and maintain scalable distributed backend systems
Own backend services end-to-end
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Analyze customer datasets for insights
Explain model performance and risk policies
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Own critical infrastructure supporting engineering teams
Design, deploy, and operate Kubernetes platforms
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Develop and deploy AI models efficiently
Prioritize tasks based on urgency and impact
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Analyze threat actor behavior and abuse patterns.
Implement abuse detection techniques.
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Act as technical advisor to enterprise customers
Design and implement modern data architectures
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Design, build, and maintain scalable distributed backend systems
Own backend services end-to-end
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Drive backend engineering
Lead design and implementation of new features
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Evolve and maintain foundational Enterprise systems
Collaborate with cross-functional teams
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Lead data science and ML initiatives
Build and lead a team for predictive modeling and experimentation
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Build a cloud-native network stack for Airbnb services
Collaborate with open-source communities like CNCF and Istio
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Design, implement, and maintain cloud infrastructure using IaC
Improve reliability, security, and scalability of the platform
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Lead design and delivery of Java projects
Analyze and optimize engine performance
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Design and optimize APIs and data pipelines for real-time analytics at scale.
Build and enhance distributed systems for large-scale indexing, search, and data processing.
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Hiring a remote Partner Sales Manager for AWS.
Full-time position in North America.
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Provide senior technical advisory for enterprise customers
Design and implement modern data architectures
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Revolutionizing AI model serving with voice cloning and text-to-speech
Developing low latency and cost-effective text-to-speech solutions
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Analyze threat actor behavior and abuse tactics
Design and develop production-ready systems
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Design, build, and maintain scalable distributed backend systems
Shape product decisions and contribute to technical discussions
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Senior Fullstack Engineer-Enterprise role for building multi-tenant management features and developing frontend with React and TypeScript.
Create admin consoles, backend APIs, and permission management interfaces for enterprise functionality.
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Monitor and improve reliability of production AI systems
Identify, diagnose, and fix issues across apps, integrations, and cloud
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Build and manage AI tooling stack and system infra for Field Engineering
Set standards for AI-driven development and scale capabilities
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Act as a senior technical advisor to enterprise customers
Design and implement modern data architectures
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Design scalable distributed backend systems
Collaborate with product and engineering peers
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Develop and implement voice cloning and text to speech solutions.
Prioritize tasks for efficient implementations.
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Analyze threat actor behavior & evolving abuse patterns
Implement advanced techniques for abuse detection & prevention
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Design, build, and maintain APIs, services, and core systems
Develop core product surfaces: cost intelligence, analytics, auth
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Provide senior escalation point for high-priority incidents
Lead investigations and monitoring strategies
