{"id":1550529,"url":"https://alion.io/job/strategic-staffing-solutions-full-stack-java-iso-team","title":"Full Stack Java ISO Team","company":{"id":2027987,"name":"Strategic Staffing Solutions","domain":"strategicstaff.com","url":"https://alion.io/company/strategicstaff","size_band":"5000+","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":{"grade":"B","score":81,"open_postings":8,"ghost_share":0,"stale_share":0.75,"repost_share":0,"time_to_fill_p50_days":35,"computed_at":"2026-10-02T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"contractor","work_mode":"hybrid","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":44000,"max_usd":78000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":69},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"Apache Kafka","optional":false},{"name":"CI/CD","optional":false},{"name":"Db2","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitLab CI","optional":false},{"name":"Hibernate","optional":false},{"name":"IBM MQ","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"Maven","optional":false},{"name":"Python","optional":false},{"name":"Spring Boot","optional":false},{"name":"COBOL","optional":true},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-04-22T00:00:00Z","employer_posted_date":"2026-04-22","last_verified_at":"2026-10-02T14:19:29Z","board_verified":true,"closed_at":null,"days_open":164,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":163},"description":"Strategic Staffing Solutions International’s client is a leading global investment bank and financial services firm, known for working with top companies, governments, and institutions. With a strong worldwide presence, they focus on investment banking, markets, asset management, and consumer finance.\nThey are seeking an experienced and independent Software Engineer to join their Engineering teams (Payments / Electronic Trading) on a 6-12 month hybrid contract in Warsaw (4 days office / 1 day remote).\nKey Responsibilities\nResolve production issues in high-performance trading or payments systems\nBuild automation tools and improve operational efficiency\nDevelop and enhance Java/Python-based microservices and APIs\nWork with SWIFT / ISO20022 messaging or trading platforms\nSupport CI/CD, releases, and monitoring improvements\nCollaborate with global engineering, infrastructure, and business teams\nRequirements & Qualifications\nBachelor’s or Master’s degree in Computer Science, Engineering, or related field\n4+ years of software engineering experience\nStrong skills in Java (11/17/21), Spring, Spring Boot, Hibernate, DB2\nExperience with Apache Kafka and event-driven architectures\nKnowledge of MongoDB and data modelling\nExperience with Maven, Docker, and RESTful APIs\nSolid understanding of microservices / distributed systems\nFamiliarity with Git and CI/CD pipelines (GitLab CI preferred)\nLinux and production support experience\nPreferred\nIBM MQ / JMS (queue managers, channels)\nInfrastructure as Code (IaC)\nISO 20022 / SWIFT / CBPR+ / FIN\nPython scripting\nAngular\nExperience in financial services / payments / banking tech\nStrong analytical and problem-solving skills\nAbility to collaborate effectively in global teams\nCommercial mindset with strong focus on code quality\nStrong communication skills, ownership, and proactive attitude\nWhat we offer\nWork in a top-tier global investment banking environment\nHybrid working model (Warsaw)\nExposure to mission-critical financial systems\nContract until 31-Dec-26 contract, with potential extension\nSalary - FTE: up to 24,200PLN gross / B2B: up to 200PLN p/h","description_format":"text","description_chars":2113,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Hybrid work"],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Professional Services","IT Consulting & Digital Transformation","Recruiting & Staffing"],"lifecycle":[{"event":"open","at":"2026-10-01T00:04:03Z"}],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.226,"p_room":0.28,"age_days":163,"expected_fill_days":35,"reasons":["conf:5","agency","urgency","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-02T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/strategic-staffing-solutions-full-stack-java-iso-team","json_url":"https://alion.io/job/strategic-staffing-solutions-full-stack-java-iso-team.json","meta":{"generated_at":"2026-10-03T01:50:52Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1845,"day_limit":5000,"remaining_today":3155,"minute_limit":60,"resets_at":"2026-10-04T00:00:00Z"}}}