PROS

Senior Software Engineer (Java)

BGR Sofia Hybrid

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hirly's read of this role

Role family: Engineering
Seniority: Senior
Country: BG
Work mode: On-site / unstated
First seen by hirly: 1 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

A Day in the Life of the Senior Software Engineer (Java) - About the role:

Design and develop reusable software components using Java 21 for our cloud-native microservices-based software platform with an emphasis on scalability and performance
Design and develop high-volume, low-latency applications and deliver high-availability and performance
Autonomous and being able to take design/development decisions
Collaborate with a talented international team of technical and product experts to design system functionality
Join forces with tech leads and architects to incorporate industry best practices and company standards
Leverage AI-powered tools and emerging technologies to improve efficiency, enhance decision-making, and drive innovation within day-to-day responsibilities
Participate in code reviews, pair programming, and knowledge exchange with colleagues
Conduct research to solve problems and drive continuous technical improvements
Contribute to technical documentation
Create unit and integration tests and assist the QA team in validation testing
Efficiently utilize DevOps tools and practices to build and deploy software
Support the DevOps/Cloud Services team in case of deployment or production issues

Required Qualifications - About you:

5+ years of experience developing large-scale complex Java applications
Experience in the travel industry with Airline IT knowledge
Proficiency in server-side REST API development
Experience in advanced topics like multi-threading, streaming, messaging, performance optimization, and horizontal scalability
Experience working with SQL and NoSQL technologies
Understanding of OOP, design patterns, SOLID principles, and modern microservices architecture
Awareness of algorithmic complexity principles and knowledge of java classical data structures time and space complexity
Outstanding analytical, problem-solving, verbal & written communication skills
Willingness to learn new technologies in depth
Curious and willing to learn strong functional domain

Highly Preferred:

University degree in Computer Science or related field
Familiarity with MS Azure or another cloud platform
Experience with AI tools and usage of it
Experience with an Agile development process (Scrum, Kanban)
Experience with Behavior and/or Test-Driven Development (BDD/TDD)
Familiarity with Jenkins or other CI/CD products
Working knowledge of Git, Jira, and Confluence
Knowledge of Docker and Kubernetes

AI Fluency & Growth Mindset- We welcome candidates who:

Understand core AI concepts and apply them ethically to enhance productivity, insights, and decision-making.
Craft effective prompts to optimize the quality and relevance of AI-generated outputs.
Explore and apply agentic AI systems , using or managing autonomous agents to streamline workflows and automate tasks.
Leverage AI tools to boost efficiency, creativity, and innovation in their daily work.
Stay curious and adaptable , continuously experimenting with AI-driven solutions to elevate team performance and customer impact.

Why Join PROS?

PROS culture and its extraordinary people are at the core of our success. We are passionate about what we do and relentless in delivering on our promises.

Our commitment to customer success inspires us to think smarter and dream bigger, empowering airlines to achieve more than they ever imagined through intelligent offer and revenue optimization.

At PROS, we foster a culture of care, where people feel supported to grow, innovate, and bring their best selves to work—every day. From flexible ways of working to continuous learning, we empower our teams to thrive both personally and professionally.

Join PROS, a dedicated travel technology company with nearly 40 years of proven airline expertise and a long runway for future growth, now powering the future of AI-driven airline retailing. If you want to be part of something exceptional, help us shape how airlines compete, innovate, and win.

PROS Core Values

We are Owners

We look for every opportunity to create a better PROS and a better experience for our customers – and we hold ourselves accountable.

We are Innovators

We think creatively to find new paths to success – for our people, our customers and our business.

We Care

We are centered on caring for the people, businesses, and communities we serve.

Original posting on PROS's site ↗

Listed on hirly, a job board. hirly is not the employer: PROS is hiring for this role.

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