Senior Kotlin Engineer

At Capgemini Engineering, the world leader in engineering services, we bring together a global team of engineers, scientists, and architects to help the world’s most innovative companies unleash their potential. From autonomous cars to life-saving robots, our digital and software technology experts think outside the box as they provide unique R&D and engineering services across all industries. Join us for a career full of opportunities. Where you can make a difference. Where no two days are the same.

Job Description We are looking for a Senior Backend Engineer to join a team responsible for building and operating critical customer-facing communication services. The platform processes large-scale transactional messaging and supports millions of interactions across multiple channels.

You will work on scalable distributed systems, contribute to platform modernization initiatives, and help drive reliability, performance, and engineering excellence across the organization.

Responsibilities

• Own and deliver key engineering objectives and quarterly initiatives.
• Lead technical implementation efforts and drive projects through ambiguity.
• Collaborate closely with Product Managers, Designers, Analysts, and other stakeholders throughout the product lifecycle.
• Identify technical, operational, and process improvements and help drive effective solutions.
• Ensure reliability, scalability, and performance of backend services through monitoring, observability, and operational excellence.
• Contribute to architectural discussions and long-term technical strategy.
• Promote engineering best practices, including code reviews, design reviews, and quality standards.
• Mentor and support other engineers through technical guidance, collaboration, and knowledge sharing.
• Support successful delivery of high-impact features and platform enhancements.

Requirements

• 5+ years of professional experience building backend systems using Kotlin.
• Strong experience designing, developing, and operating large-scale distributed systems.
• Hands-on experience with AWS, cloud-native architectures, and modern infrastructure practices.
• Experience with Kubernetes and containerized workloads.
• Experience working with relational and/or NoSQL databases (e.g., MySQL, DynamoDB).
• Strong understanding of software design principles, scalability, resiliency, and performance optimization.
• Experience delivering complex features from design through production deployment.
• Ability to make significant changes within large codebases while maintaining system stability and code quality.
• Ownership mindset with a proactive approach to problem-solving and continuous improvement.
• Strong verbal and written communication skills, with experience working in distributed international teams.
• Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.

Nice to Have

• Experience with highly available, mission-critical systems.
• Experience with microservices and event-driven architectures.
• Experience with CI/CD pipelines and modern DevOps practices.
• Experience leading technical initiatives and influencing architecture decisions.
• Knowledge of observability, monitoring, and incident management best practices.

Technology Stack

Kotlin, AWS, Kubernetes, MySQL, DynamoDB, Microservices, Distributed Systems, CI/CD Seniority: Senior Software Engineer / Senior Backend Engineer

Location: Remote / Hybrid

English: Upper-Intermediate or higher (B2+)

What You Will Love About Working Here We care about all our employees and want them to feel as comfortable as possible. That's why we offer health insurance from the first days, regardless of the probationary period.The Gift from the Company - Christmas holidays from December 25 to December 31.Cooperation with Superhumans center and Veteran HUB. Capgemini Engineering has supported the launch of psychological rehabilitation department of Superhumans. Our team also donated over UAH 500 000 prosthetics for three Ukrainian defenders. Currently, we support psychological counseling provided by the Veteran Hub, and we have implemented an internal policy making the company friendly to military and veterans with the assistance of the Hub.

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.