Lead Java Full Stack Engineer w Warszawa, Polska

We are seeking a Lead Java Full Stack Engineer to accelerate modernization work across credit risk workflows, model integration, and DB2-exit-adjacent data modernization. This role sits within the risk management function, where credit officers review counterparties through business workflows relying on model-generated ratings. Many of these models remain partly legacy and require modernization, with funding already allocated for data modernization initiatives, including DB2 exit work. Responsibilities Drive modernization efforts across credit risk workflows and model integration processesSupport the transition of legacy models to modernized architecturesIntegrate model runs initiated from business workflows with the analytics platform to return accurate ratingsContribute to data modernization initiatives, including DB2 exit workCollaborate with credit officers and risk management stakeholders to align technical solutions with business needsPlug directly into existing workflow modernization work with minimal ramp-up timeLeverage AI-assisted development tools to accelerate the software development lifecyclePartner with model risk and front-office risk teams to ensure alignment across the broader risk functionDeliver full-stack solutions that support an under-resourced function seeking to move faster Requirements 8+ years of experience in full-stack software engineering with a Java-first profileProficiency in Python for model and analytics integrationFamiliarity with GitHub Copilot as a primary AI development tool, with the Claude app as secondaryUnderstanding of credit risk workflows, model integration, and business rating systemsBackground in data modernization initiatives, including legacy database exit strategies such as DB2Capability to work within an AI-driven SDLC environment and integrate quickly into existing modernization effortsEnglish proficiency at B2 level or higher We offer We gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.