Senior Java Developer - AI Platforms

Team DefineX:

DefineX is a next-generation consulting house and venture builder.

We partner with changemakers to turn bold visions into real-world impact bridging the critical gaps from strategy to design, design to launch, and launch to scale.

In the AI era, we help organizations build future-ready business models and capabilities with the rigor of consulting and the pace of execution.

Our edge is our team: DefineXers.
A multidisciplinary group of consultants, engineers, designers, and strategists united by ownership, delivery excellence, and a shared ambition to build what’s next.

We play Larger Than Life.
Not as a motto. As a standard.

Apply now and #FindYourForward at DefineX.

Your Impact:

• Design and build Java-based, production-grade services and AI systems using proven design patterns (Factory, Strategy, CQRS) for modular, maintainable solutions.
• Decompose legacy and monolithic codebases into independently deployable microservices with clear service and data boundaries.
• Define domain models and data objects that support end-to-end AI workflows, from ingestion to inference.
• Build and maintain enterprise coding agents and AI-assisted developer tooling that scale AI adoption across teams.
• Orchestrate agentic delivery workflows (planning, code generation, review, validation) inside DefineX's delivery harness.
• Treat AI-generated output as untrusted by default: review for architectural integrity, security, and supply-chain risk before it ships.
• Automate test strategies (unit, integration, regression) across model-serving layers, data pipelines, and agent behaviors to make continuous delivery safe.
• Partner with Tech Architects and Enterprise Architects to translate business requirements into sound service- and component-level designs.
• Collaborate with data scientists, ML engineers, and business stakeholders to ship AI solutions via APIs, microservices, and event-driven architectures.

What You Bring to the Table:

• BS or MS in Computer Science, Engineering, Mathematics, or a related field, or equivalent hands-on experience.
• 5+ years of hands-on Java development in enterprise or large-scale production environments.
• Demonstrable expertise in software design patterns and architecture. You have designed systems, not just implemented them.
• A proven track record decomposing applications into modular, testable components without breaking production.
• Strong command of data modeling and object design across the layers of an enterprise system.
• Experience building or integrating coding agents or AI-assisted developer tooling in enterprise contexts.
• End-to-end AI delivery experience, from prototype to production, including at least one senior-level Java + AI project.
• Practical knowledge of LLMs, NLP, or predictive modeling integrated into production services.
• Hands-on fluency with AI coding tools (e.g. Claude Code, GitHub Copilot, Cursor).
• Strong test automation and CI/CD experience. You have moved teams from manual testing to reliable automated coverage.
• Familiarity with microservices, containerization (Docker, Kubernetes/OpenShift), and RESTful API design.
• Working knowledge of Python for AI/ML integration (e.g. consuming model-serving APIs, handling serialized models).
• The judgment to know where AI speed is safe, where it is risky, and where guardrails belong.
• High standards for code quality, documentation, and peer review.
• Fluent English and comfort in client-facing consulting settings.
• Eligibility to work in Türkiye.

Benefits and Perks:

We highly value: A mentally and physically enabling environment where Best People want to be part of; we always respect and invest in talent to foster team success.  
Growth and Development: Be part of a growing global team of professionals with training and support to help you grow. Every DefineXer has a Growth Coach to accelerate their growth through feedback!
Independence and Ownership: Blur in creative and challenging business and technology transformation projects.  
Time Off: 20 vacation days per annum. 
We love to Give Back: You will get certain hours a year to volunteer and organize office volunteer programs with local NGOs. 
Health and Wellness: Competitive private health and life insurance coverage.

Need more convincing that DefineX is a great place to work?

• Follow us on Instagram to take a deep dive into who we really are: IG @teamdefinex!
• Get to know more about our extraordinary minds,
• Also, hear from our tech leaders as they talk about why they love what they do and how the culture at DefineX enables them to take part in exciting projects!

*The fully remote work model is only applicable to candidates living outside of Istanbul and Izmir in Turkey.

At DefineX, we don't just accept difference - we celebrate it, we support it, and we thrive on it for the benefit of TeamDefineX! We are proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or veteran status. TeamDefineX will advocate for, and provide reasonable accommodations to those applicants requiring them, based on the Turkish Disabilities Act, to ensure equal opportunity in the application process.