Senior Backend Developer – Kotlin

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🔥 12 minutes ago

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Zup Innovation

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

We are a tech company with +12 years of experience, specialized in building secure and scalable systems using distributed architectures and cloud-native solutions for applications with an average of 30M users. We help large, relevant market players reduce their time-to-market for new products and services, delivering up to 80% faster with 50% less code.

📋 Description

• Develop, evolve, and maintain backend services using Kotlin, ensuring high performance, scalability, and security for core banking systems in a mission-critical environment. • Work on the architecture and implementation of cloud-native solutions on AWS, using EKS/Fargate for container orchestration, SQS for messaging, DynamoDB for persistence, and applying AWS Well-Architected Framework practices to ensure robustness, cost efficiency, and compliance. • Implement messaging and streaming integrations with Kafka and SQS, ensuring resilience, monitoring, and reliable event processing in distributed systems. • Develop and automate unit, integration, and performance tests, build robust CI/CD pipelines, and contribute to the continuous improvement of code quality. • Build, maintain, and evolve Docker containers, implementing orchestration via Kubernetes (EKS) to ensure secure, scalable, and highly available deployments. • Actively participate in technical discussions, code reviews, definition of architectural standards, and design decisions; challenge approaches, propose improvements, and share knowledge with the team. • Apply security-by-default practices, such as IAM least-privilege, encryption at rest/in transit, and secure secret management, anticipating risks and ensuring solution compliance. • Explore and validate the use of AI tools to support development, critically reviewing AI-generated outputs and promoting responsible innovation in day-to-day work. • Collaborate with multidisciplinary teams (Product, QA, SRE, Security), participating in agile ceremonies, technical alignments, and continuous improvement initiatives.

🎯 Requirements

• Strong experience in backend development with Kotlin • Hands-on experience in AWS environments, especially with EKS/Fargate, SQS, and DynamoDB • Practical knowledge of the AWS Well-Architected Framework • Messaging & Streaming: Kafka and SQS • Testing: Experience with unit, integration, and performance testing • Containers: Docker and orchestration with Kubernetes (EKS)

🏖️ Benefits

• Freedom to work from anywhere • Flexible working hours • Education allowance • Company career development platform • Internal guilds and study/interest groups • Health insurance • Dental plan • Telemedicine available 24/7 • Free online therapy • Wellhub • Extended maternity leave • Extended paternity leave • CAZ – Zuppers Support Center • Meal and food vouchers • Life insurance • Transportation allowance • Home office allowance • Childcare allowance • Phone plan allowance • Profit and Results Sharing