Hybrid Senior Software Engineer – Knowledge Base

at Azul

• Job title: Senior Software Engineer – Knowledge Base
• Job type: Full Time
• Experience level: Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: AWS, Cloud, Distributed Systems, ETL, Java, Kafka, Kotlin, NoSQL
• Location requirements: Hybrid, Prague, Czech

About the role

• Senior Software Engineer developing backend services for Azul's Intelligence Cloud. Collaborating across teams to enhance software architecture and system reliability in server-side applications.

Responsibilities

• Develop high-quality features and improvements in Java/Kotlin, with a strong focus on maintainability and readability.
• Participate in design discussions and contribute to technical decisions, without needing to drive long-term architecture alone.
• Help translate requirements into clear, practical designs and implementation steps.
• Contribute to small-scale proofs-of-concept and prototypes to validate ideas and explore alternatives.
• Evaluate trade-offs between solutions while keeping simplicity, cost, stability, and performance in mind.
• Collaborate closely with the team to break down work, estimate tasks, and deliver incrementally.
• Collaborate with other engineering teams, product managers, and data teams to ensure smooth integration of features and shared services.
• Recommend improvements to monitoring, metrics, performance, and reliability of cloud services (AWS preferred).
• Engage actively in code reviews, sharing feedback and ensuring high-quality standards across the team.
• Build scalable, resilient backend services within our cloud environment and data pipeline ecosystem.
• Maintain and extend internal components powering data ingestion, transformation, and delivery flows.
• Work cross-functionally to ensure smooth integration with other teams and systems.
• Keep up with industry trends and suggest practical improvements that fit our context.

Requirements

• 7+ years of hands-on development experience with Java (Kotlin or strong interest in Kotlin is a plus).
• Experience building backend services and working with modern JVM-based systems.
• Familiarity with AWS cloud services and cloud-native application development.
• Experience with relational databases, NoSQL stores, and messaging systems (Kafka, SNS/SQS, etc.).
• Exposure to data pipelines, data ingestion, ETL/ELT, or data delivery systems is highly valued.
• Understanding of distributed systems fundamentals, service reliability, and performance considerations.
• Familiarity with AI/LLM-based systems and how backend services interact with them (e.g., prompt orchestration, model APIs, embedding pipelines) is a plus.
• Comfortable participating in design discussions without needing to own architecture.
• Strong debugging and problem-solving skills; comfortable reading and improving existing codebases.
• Good communication skills and a collaborative mindset.
• Bachelor’s/Master’s degree in Computer Science or equivalent experience.

Benefits

• Equity Program - be part of the company success.
• Annual bonus based on company performance.
• Referral Program - bring your colleague we would all love to work with.
• IT Equipment - MacBook Pro or any other HW according to your preferences.
• Work-life balance - 5 weeks of holidays, 5 sick days, flexible working hours, 100% work from home also possible.
• Offices in Prague City Centre - if you prefer.
• Most importantly you will work with top experts worldwide who contribute to the Java ecosystem