Senior Java/Golang Engineer

• Salary based on B2B contract (via Devire)
• 100% remote or hybrid from Cracow
• Benefits package (medical healthcare, sports membership, etc.)
• Possibility to cooperate with an international company with a stable market position
• Long-term cooperation

• Bachelor's degree in Computer Science, Engineering, or related field.
• 7+ years of experience as a Backend Developer (including 2+ years as Java Developer). 
• Proficiency in Database and SQL knowledge, including the ability to write and optimize queries for performance.
• Solid understanding of RESTful API design principles and microservices architecture.
• Engineering experience running high-load and high-uptime services in production.
• Familiarity with containerization and orchestration tools such as Docker, Kubernetes, and cloud-native technologies.
• Excellent problem-solving skills, attention to detail, and ability to work effectively in a fast-paced, collaborative environment.
• Strong communication skills with the ability to articulate technical concepts and collaborate with cross-functional teams.
• Knowledge of current trends and best practices in software development, including performance, accessibility, security, and usability.
• Understanding of software development lifecycles (SDLC) with a focus on Agile methodologies (preferably SCRUM).
• Experience with building CI/CD pipelines.
• Past experience with the QA processes in software development.
• Adaptability and willingness to learn new technologies and processes.

Preferred Qualifications:

• Experience with other programming languages such as Golang and Python - or at least willing to learn them and work with them in the mid/long term.
• Knowledge of message brokers and event-driven architectures (e.g., Pub/Sub, Kafka).
• Understanding of security best practices and common vulnerabilities in API integrations.
• Experience with Cloud platforms (GCP/AWS).
• Familiarity with Infrastructure as Code (Terraform).
• API monitoring tools (e.g. NewRelic, DataDog).

Responsibilities

• Design, develop, and maintain new product features for the Order Management System using Java (e.g. order create, order change, cancellation, payment service, etc.).
• Design and optimize database structures, write efficient queries, and manage data integrity using Postgres/Google Spanner.
• Design, develop, and maintain new product features for the Order Management System using Golang (mid/long term, if not yet experienced with it).
• Collaborate with other teams to gather requirements and define service specifications for the Order Management System.
• Ensure high availability, reliability, and performance of the system through effective design and implementation practices.
• Implement monitoring, logging, and analytics solutions to track service usage, performance metrics, and service health.
• Collaborate with DevOps teams to automate deployment processes, set up CI/CD pipelines, and manage infrastructure as code.
• Stay updated on emerging trends, best practices, and technologies in microservices architecture, and cloud-native development.
• Provide technical expertise in product design, development, and delivery.
• Provide troubleshooting and support for production issues.
• Maintain comprehensive documentation for the developed systems.
• Make accurate estimates for upcoming work, communicate technical solutions effectively, and share knowledge.
• Work in a product-focused scrum team to deliver against a roadmap driven by a dedicated product owner.