Full Stack Software Engineer – Fulfillment Platform

INTERSPORT Deutschland eG

. Develop services and APIs using Java or Kotlin .

Posted 10/25/2026full-timeRemote • GermanyMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing services and APIs using Java or Kotlin, with strong capabilities in frontend development using TypeScript and React/Preact. Proficient in cloud infrastructure management with AWS and experienced in automated testing and CI/CD practices.

Highest-signal resume keywords

Java DevelopmentKotlin DevelopmentTypeScript and React DevelopmentAWS Cloud ServicesApache Kafka Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaKotlinTypeScriptReactPreactApache KafkaAWSSQLNoSQLAutomated Testing

Soft Skills

Self-DirectedPragmaticTeam-Oriented

Tools & Technologies

Infrastructure as CodeCI/CDMonitoringObservabilityPulumiTerraformAWS CDKPlaywrightJestJUnit

Industry Keywords

E-CommerceMarketplaceOrder ManagementLogisticsShipping Processes

Tech Stack

Tools & technologies

ApacheAWSCloudDynamoDBJavaJestJUnitKafkaKotlinNoSQLPythonReactSQLTerraformTypeScript

About the role

Key responsibilities & impact

Develop services and APIs using Java or Kotlin
Implement frontend functionality with TypeScript and React/Preact
Integrate order management, marketplace, carrier, and other third-party systems through robust interfaces
Develop event-driven integrations, including with Apache Kafka
Build applications and data flows for orders, shipping, tracking, returns, and partner performance
Work with AWS and actively contribute to infrastructure and deployments through Infrastructure as Code
Ensure high software quality and platform stability through automated testing, code reviews, monitoring, and observability
Contribute to architecture and technology decisions and help evolve shared engineering standards
Collaborate closely with Product Management, Data, and Business teams
Own solutions from concept through production operation
Use modern AI-assisted development tools and evaluate their results

Requirements

What you’ll need

Several years of experience in full-stack or backend software development
Very strong knowledge of Java or Kotlin and experience with modern backend architectures and APIs
Good knowledge of TypeScript and a modern frontend framework, ideally React or Preact
Experience with Apache Kafka or comparable event-streaming technologies and distributed systems
Experience with AWS or a comparable cloud platform
Knowledge of SQL and/or NoSQL databases
Experience with automated testing and a strong commitment to maintainable, testable code
Understanding of CI/CD, monitoring, and observability
Self-directed, pragmatic, and team-oriented working style
German at least at B2 level and fluent English
Nice to have: Experience with fulfillment, order, logistics, or marketplace systems
Nice to have: Knowledge of carrier, tracking, or shipping processes
Nice to have: Experience with Pulumi, Terraform, or AWS CDK
Nice to have: Knowledge of AWS services such as ECS, Lambda, SQS, API Gateway, or DynamoDB
Nice to have: Experience with micro-frontends or Self-Contained Systems
Nice to have: Knowledge of Playwright, Jest/Vitest, JUnit, or Testcontainers
Nice to have: Experience with Python
Nice to have: Experience in e-commerce, marketplace, or platform environments

Benefits

Comp & perks

Flexible working hours
Remote work options
Professional development opportunities
Employee discounts
Modern technology stack including Java/Kotlin, TypeScript, Kafka, AWS, and Infrastructure as Code
Significant technical ownership in a cross-functional product team