Senior Back End Software Engineer (Java, PHP)

Exadel Inc (Website)Remote · Posted 6 days ago

Full-timeRemoteEst. 120,000 PLN

Description

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.
What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

An international transportation technology company focused on building scalable digital solutions for modern rail operations. The organization develops internal platforms and automation tools that improve operational efficiency, support business growth, and streamline complex processes in a fast-paced environment.

Project Tech Stack

Java, JVM, Micronaut, Spring Boot, PHP, Symfony, Kubernetes, AWS, MySQL, Kafka, OpenSearch / Elasticsearch, Redis, Terraform, GitLab CI/CD, Unit Testing, Integration Testing, Distributed Systems.

What You'll Do

Design, develop, and maintain scalable, reliable, and high-performance backend services
Build and evolve the Search platform handling millions of search requests per day across 40+ countries
Design components and integrations with a strong focus on scalability, maintainability, reliability, and performance
Work on complex distributed systems problems, including graph-based search, caching, memory optimization, and high-throughput processing
Contribute to the migration of Search services from PHP to Java, improving performance, throughput, parallelism, and caching
Drive technical improvements and contribute to architecture and technology decisions
Ensure backend services are observable and design effective monitoring strategies for new components
Identify, prioritize, and reduce technical debt together with the team
Support and improve CI/CD processes and ensure high-quality, reliable releases
Write SOLID, maintainable, flexible, testable, and scalable code
Collaborate closely with Product, Frontend, Data, UX, and other Engineering teams
Participate in code reviews, technical discussions, mentoring, and knowledge sharing
Lead the adoption of better engineering practices and improve team development workflows
Take ownership of backend solutions from concept and design through implementation and production

What You Bring

Solid professional backend development experience
Strong expertise in Java and JVM-based frameworks such as Micronaut or Spring Boot
Professional experience with PHP and willingness to work in a mixed Java/PHP environment
Experience with Kubernetes, AWS, MySQL, and distributed messaging systems such as Kafka
Strong understanding of distributed systems, scalability, reliability, and software architecture
Experience building scalable systems handling high volumes of requests and data
Experience with unit and integration testing
Strong problem-solving, communication, and collaboration skills
Experience working in Agile, cross-functional teams

Nice to Have

Experience with OpenSearch / Elasticsearch
Knowledge of Redis and Terraform
Experience with Symfony
Familiarity with GitLab CI/CD
Experience with observability and monitoring
Knowledge of graph theory or search optimization

English level

Upper-Intermediate

Legal & Hiring Information

Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more.
Reasonable accommodations are available to enable individuals with disabilities to perform essential functions.
Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs.
Compensation details are shared with candidates at the early stage of the recruitment process.
The offer is not binding until a signed contract is in place.

Your Benefits at Exadel

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

International projects
In-office, hybrid, or remote flexibility
Medical healthcare
Recognition program
Ongoing learning & reimbursement
Well-being program
Team events & local benefits
Sports compensation
Referral bonuses
Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Exadel Inc (Website)Poland

Est. 120,000 PLN

Join Exadel as a Senior Full-Stack Software Engineer and power global systems that matter. Mentor top talent, own the roadmap, and help build what’s next—together. Why Join Exadel We’re an AI-first global tech company wi…

Full-time