{"id":2388662,"url":"https://alion.io/job/sdsolutions-fintech-client-4-senior-java-developer","title":"FinTech Client #4 | Senior Java Developer","company":{"id":4418535,"name":"SD Solutions","domain":"sdsolutions.tech","url":"https://alion.io/company/sdsolutions-3","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Breezy","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":59000,"max_usd":97000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":312},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Datadog","optional":false},{"name":"Gradle","optional":false},{"name":"Hibernate","optional":false},{"name":"JavaScript","optional":false},{"name":"Kotlin","optional":false},{"name":"OpenSearch","optional":false},{"name":"React.js","optional":false},{"name":"Selenium","optional":false},{"name":"SQL","optional":false},{"name":"Java","optional":true}],"status":"live","first_seen_at":"2026-10-06T13:35:24Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-13T10:19:37Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":6},"description":"On behalf ofFinTechClient #4, SD Solutions is looking for a talented Senior Java Developer\nSD Solutions is a staffing company operating globally. Contact us to get more details about the benefits we offer.\nResponsibilities:\nWork as a Senior Java Engineer for an online card payment system that processes millions of transactions a day for 1000+ merchants in 160 currencies, with 99,995% uptime\nWork with technologies such as: Java, Kotlin, Spring, Hibernate, SQL, Selenium, Gradle, AWS\nBuilding new features and automated tests with thehighest attention to code quality and Continuous Delivery rules \nFinding and improving solutions for both technical and business issues \nWorking with highly skilled specialists with the most efficient technologies and tools \n\nRequirements:\n\nAt least 5 years of hands-on Java development experience - not only coding but also problem-solving with a medium to high level of autonomy in projects \nHigh level of expertise in Java and a solid knowledge of the listed technologies/tools \nAcademic degree in IT/programming field \nProven track record of delivering high-quality code with attention to scalabilityand reliability. \n\nStrong analytical skills and a predisposition for innovative thinking \nDecision-making approach and a goal-oriented attitude \nFluency inEnglish \nAn open-minded and easygoing personality is a must - we like to like each other!\nAdvantages:\n\nTechnologies: JavaScript (ES7+), React \nExperience in Datadog, OpenSearch, Sentry \nExperience in the payments/fintech industry \nProduct-based IT company experience \nFluency in Polish\nAbout the company:\nA global fintech company providing unified payment infrastructure and financial services for merchants and consumers worldwide. The platform integrates multiple payment channels into a single solution, combining in-house technology development and product innovation to streamline transactions at scale.\nBy applying for this position, you agree to the terms outlined in our Privacy Policy. Please take a moment to review our Privacy Policy https://sd-solutions.breezy.hr/privacy-notice, and make sure you understand its contents. 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