• Develop robust, scalable backend systems using Java (11–17+), focusing on Vert.x and reactive programming • Design and manage APIs using OpenAPI (YAML), SOAP, REST, and GraphQL • Integrate seamlessly with front-end technologies such as ReactJS, VueJS, Angular, and TypeScript • Implement event-driven and microservices-based architectures, including serverless functions when appropriate • Drive CI/CD pipeline implementation, performance tuning, and system monitoring using industry-standard tools • Champion clean code practices and Agile methodologies across development teams

• Collaborate with cross-functional, distributed teams to deliver high-quality software solutions. • Design and develop high performing healthcare systems critical to patient care. • Lead technical initiatives with scalability, reliability, and maintainability. • Mentor team members and provide constructive feedback through code reviews and pull requests. • Support occasional client-related issues and gain deep expertise in their application.

• Develop robust, scalable backend systems using Java (11–17+), with a strong focus on Vert.x • Design and manage APIs using OpenAPI (YAML), SOAP, REST, and GraphQL • Integrate seamlessly with front-end technologies such as ReactJS, VueJS, Angular, and TypeScript • Implement event-driven and microservices-based architectures, including serverless functions where appropriate • Build scalable data solutions using JPA, Hibernate, MongoDB, NoSQL, and RDBMS (AWS/Azure) • Drive CI/CD pipeline implementation, performance tuning, and system monitoring using industry-standard tools • Champion clean code practices and Agile methodologies across development teams

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description We’re looking for a high-agency backend engineer who thrives in a greenfield environment and likes building simple solutions for complex problems. As a Senior Backend Engineer at Decisionly, you’ll work directly with the CTO to shape the product and refine our technical vision. You’ll be an early hire at a fast-growing fintech startup, working across the stack and taking ownership of key projects as we scale our product and acquire customers. What You’ll Do - Research and develop new features for our backend infrastructure - Build and maintain secure, scalable APIs for our service - Incorporate compliance and security considerations into our Techstack - Design and deploy infrastructure using Terraform and modern DevOps practices - Integrate with third-party APIs to expand product footprint - Act as a technical point of contact for customers Qualifications - 3+ years of backend development experience within the payment industry - Experience working with clients - Experience with Node and/or Typescript - Experience with PostgreSQL or equivalent database - Able to tackle legacy systems or dense technical documentation with persistence and a sense of humor - Experience deploying LLMs to production environments - Familiarity with AWS, and preferably Terraform - A fast learner who thrives in a dynamic, unstructured environment - Experience in high-growth startups, fintech, enterprise SaaS, or regulated industries is a plus Requirements - Competitive compensation and equity package - Candidates must be authorized to work in the U.S. without sponsorship - We are a remote-first team, but candidates must be based in the U.S.