Ciklum is looking for a Senior Java Engineer to join our team full-time in Bulgaria. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior Java Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Responsibilities: - Analyze existing Java EE components and document business logic - Design clean, testable Spring Boot services and data access interfaces - Plan and execute MySQL to MongoDB data model transformation - Write unit/integration tests prior to implementation - Execute incremental migration with parallel validation - Ensure performance parity with legacy application Requirements: - Java/Spring Boot - Strong experience building enterprise applications, REST APIs, and data access layers with Spring Data - Jakarta EE/Java EE - Ability to analyze and deconstruct legacy Java EE components (EJBs, JPA, CDI) - MySQL - Deep understanding of relational data models and query optimization - MongoDB - Experience with NoSQL patterns, document modeling, and Spring Data MongoDB - TDD/Unit Testing - Proven track record writing comprehensive test suites before implementation (JUnit, Mockito, Testcontainers) Desirable: - Python - For scripting, automation, and migration tooling - LLM/AI Tools - Experience leveraging AI for code analysis, conversion assistance, and documentation generation - Kafka - Understanding of event-driven architectures for data synchronization - Docker/Kubernetes - Familiarity with containerized deployments What`s in it for you? - Regular salary reviews based on performance - Corporate events: webinars, offline parties, and meetups - Internal Mobility Program - Tailored education path (including full access to Udemy, certifications, etc.) - 25 paid days off: 20 business days of vacation per calendar year + 5 undocumented sick leave days - Additional health insurance - 100% company-covered Multisport card, with discounts available for family members About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. Since expanding to Bulgaria in 2022, we’ve been building a fast-growing team that thrives on learning, collaboration, and innovation. Join us on this exciting journey and help shape the future of our delivery center. Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

Ciklum is looking for a Senior Java Engineer to join our team full-time in Bulgaria. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live. About the role: As a Senior Java Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Responsibilities: - Analyze existing Java EE components and document business logic - Design clean, testable Spring Boot services and data access interfaces - Plan and execute MySQL to MongoDB data model transformation - Write unit/integration tests prior to implementation - Execute incremental migration with parallel validation - Ensure performance parity with legacy application Requirements: - Java/Spring Boot - Strong experience building enterprise applications, REST APIs, and data access layers with Spring Data - Jakarta EE/Java EE - Ability to analyze and deconstruct legacy Java EE components (EJBs, JPA, CDI) - MySQL - Deep understanding of relational data models and query optimization - MongoDB - Experience with NoSQL patterns, document modeling, and Spring Data MongoDB - TDD/Unit Testing - Proven track record writing comprehensive test suites before implementation (JUnit, Mockito, Testcontainers) Desirable: - Python - For scripting, automation, and migration tooling - LLM/AI Tools - Experience leveraging AI for code analysis, conversion assistance, and documentation generation - Kafka - Understanding of event-driven architectures for data synchronization - Docker/Kubernetes - Familiarity with containerized deployments What`s in it for you? - Regular salary reviews based on performance - Corporate events: webinars, offline parties, and meetups - Internal Mobility Program - Tailored education path (including full access to Udemy, certifications, etc.) - 25 paid days off: 20 business days of vacation per calendar year + 5 undocumented sick leave days - Additional health insurance - 100% company-covered Multisport card, with discounts available for family members About us: At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. Since expanding to Bulgaria in 2022, we’ve been building a fast-growing team that thrives on learning, collaboration, and innovation. Join us on this exciting journey and help shape the future of our delivery center. Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn. Explore, empower, engineer with Ciklum! Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

The Company Dexcom Corporation (NASDAQ DXCM) is a pioneer and global leader in continuous glucose monitoring (CGM). Dexcom began as a small company with a big dream: To forever change how diabetes is managed. To unlock information and insights that drive better health outcomes. Here we are 25 years later, having pioneered an industry. And we're just getting started. We are broadening our vision beyond diabetes to empower people to take control of health. That means personalized, actionable insights aimed at solving important health challenges. To continue what we've started: Improving human health. We are driven by thousands of ambitious, passionate people worldwide who are willing to fight like warriors to earn the trust of our customers by listening, serving with integrity, thinking big, and being dependable. We've already changed millions of lives and we're ready to change millions more. Our future ambition is to become a leading consumer health technology company while continuing to develop solutions for serious health conditions. We'll get there by constantly reinventing unique biosensing-technology experiences. Though we've come a long way from our small company days, our dreams are bigger than ever. The opportunity to improve health on a global scale stands before us. Meet the team: The IT Cloud Platform Services teams is a dynamic mix of tech enthusiasts, problem solvers, and creative thinkers, united by our passion for leveraging cutting-edge technology to transform healthcare and empower our customers to take real-time control of their health. Where you come in: As a Staff DevOps Engineer, you will play a critical role in our dynamic team, contributing to the management, operation, and optimization of our GCP, AWS, and Azure cloud infrastructure. Your expertise will help us achieve seamless deployment, automation, and monitoring of our services. You will: - Implement and Manage Infrastructure: Utilize Terraform to define and provision our GCP infrastructure, ensuring it is scalable, reliable, and cost-effective. - Automate Configuration Management: Use Ansible to automate the configuration and management of our systems, improving efficiency and reducing the risk of manual errors. - Monitor and Optimize Performance: Leverage DataDog to monitor system performance and application metrics, identifying and resolving issues before they impact our users. - Collaborate Across Teams: Work closely with software engineers, QA, and operations teams to ensure smooth integration and delivery of our applications. - Innovate and Improve: Continuously explore and implement new tools and practices to enhance our DevOps processes and improve overall system reliability and performance. - Your role will be essential in supporting our mission to deliver high-quality, reliable services to our customers. If you are passionate about cloud technologies, automation, and continuous improvement, we want to hear from you! Your duties typically include: - Leading Implementation of Solutions: You will collaborate with architects and engineers to build robust and scalable architectures on GCP to support the organization's applications and services. This involves understanding business requirements; complex, multi-cloud and facility networking and interconnects; evaluating cloud services across GCP, Azure, and AWS; and designing solutions that meet performance, reliability, and cost requirements. - Infrastructure as Code (IaC): Implementing Infrastructure as Code practices using tools like Terraform, Ansible, or Google Cloud Deployment Manager to automate the provisioning and management of resources across our cloud platforms. - Serverless Technologies: You will leverage serverless technologies to build scalable and cost-effective solutions. This includes implementing serverless architectures using tools like Google Cloud Functions and AWS Lambda, optimizing serverless workflows, and ensuring seamless integration with other cloud services. - Expertise in GKE and Kubernetes: You will demonstrate expertise in Google Kubernetes Engine (GKE) and Kubernetes, helping the team design and implement a containerization strategy, and manage containerized platforms to ensure high availability and scalability. This includes configuring and optimizing GKE clusters, implementing best practices for Kubernetes management, and troubleshooting issues within the Kubernetes environment. - Cloud Networking and Security at the Edge: You will implement secure and efficient cloud networking solutions. This includes configuring virtual networks, managing network security groups, implementing cloud firewalls, and ensuring compliance with security standards. You will also be responsible for monitoring and optimizing network performance, troubleshooting network issues, and collaborating with security teams to ensure robust security measures are in place. - Performance, FinOps, and Cost Optimization: Continuously monitoring and optimizing the performance of cloud systems to ensure optimal resource utilization, scalability, and reliability. Identify and report on bottlenecks, wasted resources, and expenditures; tune configurations; and implement best practices to improve system performance in a financially responsible manner. - Security and Compliance: Implementing security best practices and ensuring compliance with relevant regulations and standards (e.g., HIPAA, GDPR) in cloud environments. This involves configuring identity and access management, network security, encryption, and auditing/logging solutions to protect data and resources. - Collaboration and Documentation: Collaborating with cross-functional teams including developers, operations, and security teams, to ensure alignment on architecture decisions and implementation strategies. Documenting design decisions, configurations, and procedures to facilitate knowledge sharing and future troubleshooting. - Overall, as a Staff DevOps Engineer who specializes in GCP, your role is crucial in maintaining reliable, scalable, and secure cloud-based systems that enable the organization to leverage the full potential of our cloud platforms. What makes you successful: - You have a good understanding of cloud principles and services. Experience in Google Cloud Platform (GCP) and Azure is required. - Your understanding of Terraform allows you to define and manage infrastructure as code (IaC) efficiently. Experience with Terraform Cloud or similar is preferred. - You provide technical leadership and work direction to junior staff, including both project and operational activities - You are familiar with using Ansible or other CM tools for configuration management and automation. - Your experience with DataDog or other observability platforms enables you to effectively monitor and optimize system performance. - You possess a solid foundation in scripting languages such as Python, Bash, or similar. - You bring excellent problem-solving skills and the ability to troubleshoot complex issues. - Your collaborative mindset and effective communication skills allows you to work seamlessly with cross-functional teams. - Your documentation hygiene is impeccable, reflecting your understanding that knowledge is better when shared - You are committed to continuous learning and staying updated with the latest Cloud Platform tools and practices. Nice to have: - Familiarity or experience with FOCUS, GenAI and associated technologies What you’ll get: - A front row seat to life changing CGM technology. Learn about our brave #dexcomwarriors community. - A full and comprehensive benefits program. - Growth opportunities on a global scale. - Access to career development through in-house learning programs and/or qualified tuition reimbursement. - An exciting and innovative, industry-leading organization committed to our employees, customers, and the communities we serve. Travel Required: - 0-5% Experience and Education Requirements: - Typically requires a Bachelor’s degree in a technical discipline, and a minimum of 8-12 years related experience or Master’s degree and 5-7 years equivalent industry experience or a PhD and 2-4 years of experience. Remote Workplace: Your location will be a home office; you are not required to live within commuting distance of your assigned Dexcom site (typically 75 miles/120km). If you reside within commuting distance of a Dexcom site (typically 75 miles/120km) a hybrid working environment may be available. Ask about our Flex workplace option. Please note: The information contained herein is not intended to be an all-inclusive list of the duties and responsibilities of the job, nor are they intended to be an all-inclusive list of the skills and abilities required to do the job. Management may, at its discretion, assign or reassign duties and responsibilities to this job at any time. The duties and responsibilities in this job description may be subject to change at any time due to reasonable accommodation or other reasons. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions. An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, national origin, or protected veteran status and will not be discriminated against on the basis of disability. Dexcom’s AAP may be viewed upon request by contacting Talent Acquisition at talentacquisition@dexcom.com. If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact Dexcom Talent Acquisition at talentacquisition@dexcom.com. Meritain, an Aetna Company, creates and publishes the Machine-Readable Files on behalf of Dexcom. To link to the Machine-Readable Files, please click on the URL provided: https://health1.meritain.com/app/public/#/one/insurerCode=MERITAIN_I&brandCode=MERITAINOVER/machine-readable-transparency-in-coverage?reportingEntityType=TPA_19874&lock=true To all Staffing and Recruiting Agencies: Our Careers Site is only for individuals seeking a job at Dexcom. Only authorized staffing and recruiting agencies may use this site or to submit profiles, applications or resumes on specific requisitions. Dexcom does not accept unsolicited resumes or applications from agencies. Please do not forward resumes to the Talent Acquisition team, Dexcom employees or any other company location. Dexcom is not responsible for any fees related to unsolicited resumes/applications. Salary: $122,500.00 - $204,100.00

• Ensure the availability, performance, monitoring, and incident response of cloud platforms and services • Ensure compliance with requirements for production • Manage failures and resource issues • Use metrics like MTTR and MTTF • Develop technical solutions to complex problems • Document findings and conduct root cause analysis • Collaborate with engineering and development teams • Monitor production equipment diagnostics • Recommend design and process modifications to improve reliability