---
title: 'Senior Back End Software Engineer (Java, PHP) at Exadel Inc (Website)'
canonical: 'https://feeny.ai/job/senior-back-end-software-engineer-java-php-exadel-inc-website-poland-vz1atzsft02p'
type: 'job'
last_seen: '2026-09-21'
---

# Senior Back End Software Engineer (Java, PHP) at Exadel Inc (Website)

- **Company:** Exadel Inc (Website)
- **Location:** Poland
- **Posted:** 2026-08-21
- **Last confirmed live:** 2026-09-21
- **Apply:** https://job-boards.greenhouse.io/exadelinc/jobs/6149762004

## Job 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.

## About Exadel Inc (Website)

## Company Overview
- **One-liner**: Exadel is a data and AI advisory and engineering company that helps enterprises design, build, and scale the systems at the heart of their business.
- **Entity Type**: Private (bootstrapped – no external funding rounds publicly disclosed)
- **Headquarters**: Silicon Valley, California, USA
- **Founded**: 1998
- **Founders**: Not publicly available

## Core Business
- **Primary industry/industries**: Enterprise AI engineering, data engineering, digital experience design, program delivery and modernization.
- **Target customers**: Large enterprises in complex, regulated industries (B2B, enterprise).
- **Mission or purpose statement**: “We fuse engineering precision, data intelligence, and AI innovation to help our clients move with purpose and lead with certainty.”

## Products & Services
For each major offering:
- **[AI Engineering]**: From model design to MLOps and integration, Exadel brings responsible AI into production – built for trust and scale.
- **[Data Engineering & Analytics]**: Transforms fragmented data into clean, governed, and AI‑ready ecosystems that power insight and automation.
- **[AI-Enabled Product Engineering]**: Embeds AI into the development process to deliver software that evolves with the client’s business.
- **[Digital Experiences]**: Engineers digital experiences (mobile, enterprise) that move users and drive business outcomes.
- **[Program Delivery and Modernization Leadership]**: Leads complex transformations from discovery to rollout with measurable outcomes at every stage.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: 2,000+ engineers across 30 countries; 100+ enterprise clients; 9/10 client satisfaction rating.
- **Notable Investors/Partners**: Not publicly listed; the company is self‑funded.
- **Growth Signals**: Expanding into the GenAI era with dedicated AI strategy services; 25+ years of delivery in regulated industries; headcount has grown from 1,000+ engineers (earlier phase) to 2,000+ today.

## Competitive Advantages
- **Engineering heritage**: Founded in 1998 in Silicon Valley, with deep roots in software engineering that evolved into data and AI.
- **Outcome ownership**: “We’re not consultants who code, or coders who consult. We’re engineers who own outcomes.” – transparent, accountable delivery.
- **Global scale with local presence**: 2,000+ engineers in 30 countries, enabling flexible, cost‑efficient team composition.
- **Proven track record in regulated industries**: Decades of experience in complex, compliance‑heavy environments build trust and precision.

## Strategic Focus
- Accelerating enterprise adoption of generative AI – moving clients “from experimentation to adoption, and from pilots to platforms.”
- Deepening data intelligence capabilities to feed AI and automation.
- Modernizing legacy systems at market speed while embedding AI into the product development lifecycle.

## Why Work Here
- **Culture**: Outcome‑focused, not hours‑tracked. “Own your time” – trust and autonomy are core.
- **Remote/hybrid/office**: “Work Where It Makes Sense For You” – home, local office, or anywhere in between.
- **Learning & development**: Certifications, courses, conferences covered. “If it levels you up, we’ll cover it.”
- **Benefits**: Localized medical insurance, sports memberships, vouchers, and reimbursements.
- **People**: “Great people every day” – smart, supportive teammates; open dialogue and diverse viewpoints encouraged.
- **Interview process**: 5‑step, transparent, human‑driven (AI helps but doesn’t decide hiring).
- **Global projects**: Work on international, high‑impact AI and engineering projects for Fortune‑scale clients.

## Sources
1. [Exadel About page](https://exadel.com/about/)
2. [Exadel Homepage](https://exadel.com/)
3. [Careers – Life at Exadel](https://exadel.com/careers/life-at-exadel)
4. [Careers – Interview Process](https://exadel.com/careers/careers)
5. [Job Board (Greenhouse)](https://job-boards.greenhouse.io/exadelinc)

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- [Instructional Designer](https://feeny.ai/job/instructional-designer-exadel-inc-website-bulgaria-poland-romania-2r1z8pphcr4g) — Bulgaria / Poland / Romania
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