Back End Developer
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• Build the coolest tech for world’s leading brands
• Solve complex problems – and learn new skills
• Experience the power of transforming digital engineering for Fortune 500 clients
• Master your craft with leading training programs and hands-on experience Experience a community of change makers Join a culture of high-performing innovators with endless ideas and a passion for tech. Our culture is the fabric of our company, and it is what makes us unique and diverse. The way we share ideas, learning, experiences, successes, and joy allows everyone to be their best at Ascendion.
About the Role
• Role: Backend / API Engineer
•
Location:
only in Colombia, Medellín (Remote)
• Employment Type: Contract with no benefits
Key Responsibilities
• Design, develop, and maintain backend services and REST APIs.
• Support digital banking functionality and application integrations.
• Develop and maintain services using Java, Spring Boot, and relevant .
NET technologies.
• Build and maintain API documentation using OpenAPI.
• Implement unit testing and support code quality standards.
• Collaborate with front-end, mobile, integration, and QA teams.
• Support secure processing of banking transactions and payment-related services. Required Skills
• 7+ years of software development experience.
• Strong knowledge of Java 17+ and Spring Boot.
• Experience with Maven or Gradle.
• Experience developing REST APIs.
• Familiarity with OpenAPI specifications.
• Experience with JUnit.
• Knowledge of .
NET Core 10 and .
NET Framework 4.8.
• Understanding of enterprise application integration. Nice to Have
• Banking or financial services industry experience.
• Experience integrating with Jack Henry Symitar.
• Knowledge of ACH and payment systems.
• Experience with fraud prevention and security services.
• Exposure to high-volume transaction processing.
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