Fast growing product development company
Lead Java Engineer, Payments
Location
Ukraine
Posted
86 days ago
Salary
0
Seniority
Senior
Job Description
Lead Java Engineer, Payments
Patrianna
• 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 • You will 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
Job Requirements
- 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
- 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
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L R SLRS Consulting Services has been delivering the highest quality consultants to our clients since 1979. We've built a solid reputation for dealing with our clients and our consultants with honesty, integrity, and respect. We work hard every day to maintain that reputation. LRS is an equal opportunity employer. Applicants for employment will receive consideration without unlawful discrimination based on: Race Color Religion Creed National origin Sex Age Disability Marital status Gender identity Domestic partner status Sexual orientation Genetic information Citizenship Status or protected veteran status In some cases, LRS Consulting uses generative artificial intelligence (“AI”) in support of our hiring processes. LRS takes steps to ensure the use of AI does not result in discrimination based on protected class(es). AI may be used in the hiring process solely in support of the assessment of candidate qualifications. All decisions in the hiring process are made by LRS employees. If AI will be used in the hiring process for the position for which you are applying, you will be notified and will have the opportunity to opt out. If you have any questions, please contact us by clicking here.
This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description Codeworks, an LRS company, is seeking an API Developer for a contract opportunity. This position offers an exciting chance to apply your technical expertise while contributing to impactful initiatives for one of our trusted client partners. We are seeking an API Developer who brings a broad and well‑rounded technical skill set to support the design and delivery of modern, scalable software solutions. In this role, you will work with: - API orchestration - Event‑driven architecture - Industry‑standard development tools You will build and maintain high‑scale applications across the full engineering stack. The ideal candidate: - writes clean, maintainable, and well‑tested code - follows object‑oriented best practices - applies modern development approaches such as serverless computing, microservices, CI/CD, and infrastructure‑as‑code to create reliable and efficient systems Qualifications - 5+ years of hands‑on experience developing APIs - Experience with Java 17+, Spring 5+, Spring Boot 3+, and RESTful API design - Strong understanding of microservices architecture, distributed systems, and inter‑service communication - Practical experience with caching solutions such as Redis - Experience implementing and managing CI/CD pipelines for automated build, test, and deployment - Proficiency with relational databases (e.g., PostgreSQL) and NoSQL systems (e.g., MongoDB or Cassandra) - Experience designing, implementing, and supporting cloud‑native applications on platforms such as Google Cloud or AWS - Proficiency in RESTful API design and development - Familiarity with API security best practices such as OAuth2 and JWT - Experience using API documentation tools like Swagger or Postman - Experience writing unit and integration tests in Java and JUnit, ideally using TDD Requirements - Experience with cloud platforms (GCP, AWS, or Azure) - Experience with GraphQL - Experience designing and developing cloud‑native solutions - Experience refactoring or applying design patterns - Experience practicing continuous integration and trunk‑based development - Experience implementing test‑driven development - Experience applying object‑oriented design principles such as SOLID and GRASP - Experience with advanced cloud services such as BigQuery, Bigtable, Pub/Sub, SQS, Event Bridge, GKE/EKS Benefits - The base range for this contract position is $70.00 - $85.00 per hour, depending on experience - The range displayed reflects the minimum and maximum target for new hires of this position across all U.S. locations - Individual pay is determined by work location and additional job-related factors



