Full stack QA Engineer (Java, TCP socket-based integrations)

Spotware Systems; United States; Hybrid; USD 51,000 - 84,000; Full time

Benefits offered by this job

Private medical insurance

Relocation support

Relocation bonus

Office perks (fruit days, snacks)

Job summary

Spotware Systems in Limassol (or remote) seeks a Senior QA Engineer (Full Stack) to join a dynamic product team. You will perform manual and automated testing across backend services, ensure robust test coverage, and drive quality improvements in collaboration with product managers and developers.

The role emphasizes Java-based test automation, microservices, and TCP socket integrations, with strong English and Russian communication, and AI-augmented approaches to testing.

Qualifications

• 5+ years in Quality Assurance, backend projects.
• 2+ years troubleshooting Java applications.
• Proficiency in Java for test automation.
• Knowledge of testing methodologies and test design techniques.
• Experience in Allure TestOps with traceability to requirements.
• Hands-on with microservices and event-driven architectures.
• Experience testing TCP socket-based integrations (WebSocket, gRPC).
• Strong analytical skills and ability to create traceability matrices.
• SQL knowledge for backend data validation.
• Linux CLI for environment maintenance.
• Excellent English (B1+) and Russian.
• AI-augmented work approach.

Responsibilities

• Conduct requirements analysis with cross-functional teams.
• Perform manual and automated functional/non-functional testing.
• Identify, track, and report bugs with root-cause analysis.
• Maintain test environments for stable test execution.
• Contribute to test strategies for high-availability systems.
• Collaborate in code reviews to improve test and production code quality.

Skills

Quality Assurance

Backend testing

Java testing

SQL

Linux CLI

English proficiency

Russian language

AI augmentation

Tools

Allure TestOps

PG

ClickHouse

Job description

Spotware Systems is seeking an experienced **Senior QA Engineer (Full stack)**to join our dynamic and highly professional product team in our Limassol office (or remote). This role involves working closely with product managers and developers to ensure our products are robust, scalable, and meet high-quality standards. You will be involved in functional testing, customer scenario testing, stress testing, performance testing, sanity testing, enhancing the automation processes, and the overall QA improvement process.

Key Responsibilities:

• Conduct thorough requirements analysis and collaborate with cross-functional teams to understand technical specifications.
• Perform manual/automate functional/non-functional testing.
• Identify, track, and report bugs, ensuring they are resolved promptly with clear root cause analysis.
• Monitor and maintain test environments to ensure stability and efficiency in test execution.
• Contribute to and execute test strategies for complex systems with high availability and reliability requirements.
• Collaborate in code reviews to maintain high quality across automated tests and production code.

Requirements:

• 5+ years of experience in Quality Assurance, specifically in backend projects.
• 2+ years of experience in troubleshooting Java applications.
• Proficiency in Java programming for test automation development.
• Solid knowledge of testing methodologies and test design techniques (e.g., boundary value analysis, equivalence partitioning, state transition testing).
• Experience in designing and maintaining test cases in Allure TestOps, including traceability to requirements and test reporting.
• Hands-on experience with microservices architecture and event-driven architecture, including understanding of inter-service communication, message brokers, and asynchronous processing.
• Proven experience testing TCP socket-based integrations (e.g., WebSocket, gRPC).
• Strong analytical skills with the ability to perform impact analysis, create traceability matrices, and work with both functional and non-functional requirements.
• Experience in identifying root causes and understanding issue consequences within complex backend environments.
• Good working knowledge of SQL for validating backend data and queries.
• Linux systems knowledge (CLI) for troubleshooting and test environment maintenance.
• Excellent communication skills with a strong command of English (B1 or above) and Russian.
• You use AI not just occasionally, but as a core part of how you think, work, and deliver results. Being AI-augmented is part of what makes you a top performer.

Preferred Qualifications:

• Familiarity with binary protocols (e.g., FIX).
• Hands-on experience with Databases like PG, Clickhouse
• Hands-on experience with messaging and caching systems like Kafka, Redis
• Experience in the Forex industry or trading platform knowledge.

Conditions:

• Competitive salary.
• Private medical insurance.
• Relocation support (if applicable), including an entry permit, relocation bonus, flight tickets, and airport pickup.
• Support with settling into life in Cyprus, including basic guidance on everyday matters, accommodation, banking, and healthcare.
• A comfortable office environment with fresh fruits every day, treats or pizza on Wednesdays, and snack day on Fridays.
• Fair remuneration based on your experience, skills, and level of responsibility.
• Welcome Baby Bonus and Baby Box to celebrate the arrival of a child.
• Birthday voucher.
• Partial compensation for sports activities and wellness initiatives.
• Greek language classes.