Lead Java Engineer, Payments

Patrianna

Lead Java Developer designing system architecture and overseeing payment solutions for social gaming. Collaborating with teams to implement AI-driven engineering practices.

Posted 7/24/2026full-timeRemote • 🇺🇦 UkraineSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in system architecture design, ensuring scalability, reliability, and performance while leveraging Java and its ecosystem. Proficient in security best practices, database optimization, and effective communication across technical and non-technical stakeholders.

Highest-signal resume keywords

Java DevelopmentSystem Architecture DesignPostgreSQL OptimizationAI Tools UtilizationLeadership and Mentoring

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaJVM InternalsSystem DesignRelational Database PrinciplesQuery OptimizationKafka EcosystemConcurrency ConceptsTroubleshootingCode ReviewSecurity Best Practices

Soft Skills

Communication SkillsTeam CollaborationProblem-SolvingEngagement and Ownership

Tools & Technologies

Payment OrchestratorsGlobal ProcessorsThird-Party GatewaysVaulting ServicesAlternative Payment Methods

Industry Keywords

Payment SystemsWeb DevelopmentBackend DevelopmentProduction Systems

Tech Stack

Tools & technologies

JavaKafkaPostgres

About the role

Key responsibilities & impact

Lead the design of system architecture, ensuring scalability, reliability, and performance for current and future needs
Perform thorough code reviews, ensuring best practices, backward compatibility and maintainability of the solution
Analyze and improve the performance of existing applications, identifying bottlenecks and proposing innovative solutions
Ensure adherence to best security practices in the development and deployment of solutions
Oversee a complex ecosystem of Payment Orchestrators, Global Processors, and Local Payment Methods, ensuring that our players experience zero friction from purchase to withdrawal
Lead the seamless integration of third-party Gateways, Vaulting services, and Alternative Payment Methods across diverse global markets
Own the end-to-end production health of the payment stack. Implement advanced monitoring, automated reconciliation, and rapid-response protocols for transaction failures
Serve as the technical bridge between development, QA, and product teams to ensure alignment on solutions and deliverables
Collaborate with product and project managers to plan iteration scopes and ensure timely delivery
Be a dependable point of contact for critical decision-making and delivery

Requirements

What you’ll need

Solid experience building and maintaining production systems using Java and its ecosystem
Solid Java knowledge with a strong understanding of JVM internals
Excellent system design skills, capable of describing, documenting, and implementing complex architectures for scalable systems
Excellent knowledge of relational database principles, preferably PostgreSQL, with proficiency in query optimization and performance tuning
AI-native mindset with deep, hands-on expertise leveraging AI tools, large language models, and autonomous agents as a default approach to problem-solving, system design, and engineering productivity.
Deep understanding of messaging concepts (preferably with the Kafka ecosystem or similar)
Good understanding of concurrency concepts and principles
Exceptional troubleshooting skills, with the ability to resolve complex production issues effectively
Demonstrated engagement and ownership, taking full responsibility for delivering solutions and driving team success
Proven ability to conduct effective code reviews, ensuring high-quality deliverables and adherence to best practices
Solid understanding of security best practices, particularly in web and backend development contexts
Leadership experience, including mentoring team members, facilitating technical discussions, and fostering a collaborative environment
At least upper-intermediate proficiency in English, with strong communication skills for technical and non-technical stakeholders.

Benefits

Comp & perks

Modern tech stack
Fresh, well-maintained codebase featuring high test coverage
Minimal bureaucracy and fast approval processes
Ability to work with highly skilled, passionate, and supportive teammates
Chance to make a global impact by contributing to projects experiencing exponential user growth