{"id":2519469,"url":"https://alion.io/job/aci-worldwide-sr-software-engineer-16","title":"Sr Software Engineer","company":{"id":20985,"name":"ACI Worldwide","domain":"aciworldwide.com","url":"https://alion.io/company/aci-worldwide","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"A","score":92,"open_postings":12,"ghost_share":0,"stale_share":0.333,"repost_share":0,"time_to_fill_p50_days":56,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Timișoara, Romania"],"countries":["RO"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":32000,"max_usd":67000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":14},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon EKS","optional":false},{"name":"Anthropic","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Azure AKS","optional":false},{"name":"Claude Code","optional":false},{"name":"Copilot","optional":false},{"name":"Cursor","optional":false},{"name":"Google GKE","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"OpenAI","optional":false},{"name":"OpenShift","optional":false},{"name":"RAG","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"Threat Modeling","optional":false},{"name":"Angular","optional":true},{"name":"GCP","optional":true},{"name":"GDPR","optional":true},{"name":"Java","optional":true},{"name":"JavaScript","optional":true},{"name":"PCI DSS","optional":true},{"name":"SOC 2","optional":true},{"name":"Spring Boot","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-14T09:25:22Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-16T03:22:17Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Senior Software Engineer - Support Lead\nAbout the team\nThe Connetic Account-to-Account organization owns high-value payment processing, instant payment processing and batch payment processing end to end. We move billions of transactions across ACI's network, and this department is directly accountable for the reliability, speed, and quality of that experience. As Senior Software Engineer - Support Lead you will be actively participating in and leading Level 3 Support activities on a cloud-native infrastructure, with AI-assisted engineering practices.\nWhat You'll Own\nDeep troubleshooting and root cause analysis for complex issues, such as intermittent failures, performance degradation, data corruption and integration faults\nConfirm whether an issue is a defect, a configuration problem or a usage problem. Provide or implement fixes, scripts and data corrections where applicable\nTriage, fix and backport security vulnerabilities (including third-party dependency upgrades) within agreed remediation SLAs\nJoin Priority1/2 (P1/P2) triage incidents, drive the technical diagnosis, and help restore service\nProvide clear technical updates to customers, account managers and leadership during incidents, and take part in post-incident reviews\nFeed real-world issues back into the roadmap, and push for fixes that reduce ticket volume\nManage the issues backlog, team capacity, support schedule and on-call rotation\nUse AI-assisted engineering tools daily - troubleshooting, code generation, review, test authoring, and incident triage\nMentor mid-level and junior engineers, and share what you learn through documentation, demos, or informal coaching\nExplain complex technical trade-offs clearly to engineers and non-technical stakeholders alike, and influence decisions with data and rationale\nOur Tech Stack\nDeep expertise in this exact stack isn’t a hard requirement - strong engineers from adjacent stacks are welcome to apply.\nJava - expert-level proficiency: JVM internals, concurrency, performance tuning, Spring Boot / Spring ecosystem, and modern Java (17+) features \nAngular - expert-level proficiency: modern Angular (17+) including micro-frontends, performance tuning and secure front-end practices (dependency vulnerability remediation, version upgrades)\nGen AI / LLM tooling - hands-on experience with LLM APIs (OpenAI, Anthropic, or equivalent), prompt/workflow design, RAG patterns, and AI coding assistants (Copilot, Cursor, Claude Code, or equivalent) as part of daily development\nLow-latency systems - demonstrated experience designing and optimizing transaction processing, payments, or equivalent high-throughput distributed systems \nMicroservices & APIs - RESTful and event-driven service design; experience with API versioning, backward compatibility, and contract testing \nContainers & Kubernetes - familiarity with containerizing applications and running them on Kubernetes (AKS, EKS, GKE, or OpenShift) \nCloud platforms - Azure; working familiarity AWS a strong plus \nand/or\nWhat You Bring\nYou don't need to check every box below to apply - if most of this resonates, we want to hear from you.\n5+ years of professional software engineering experience, with a track record of owning complex features or systems from design through production\nHands-on experience in production support, ideally at Level 3 - troubleshooting live incidents, performing root cause analysis, delivering code fixes (including security vulnerability remediation), and working under SLA and on-call pressure\nExperience diagnosing production issues using logs, metrics and tracing tools, and working with ticketing/incident systems\nStrong critical thinking - you frame decisions clearly, weigh explicit trade-offs rather than defaulting to the familiar option, and adjust your thinking as new information comes in, especially under pressure or ambiguity\nStrong systems thinking - you reason about how components interact and where failure or complexity will emerge upstream and downstream, not just within the piece you're touching\nSolid grounding in SaaS and cloud-native fundamentals - the underlying principles, not just familiarity with the tools, even where our own infrastructure is still catching up to them\nGenuine curiosity - you ask why, you're not satisfied with 'it works,' and you bring creative approaches to problems that don't have an obvious answer yet\nWorking knowledge of secure coding practices, threat modeling, and access-control design\nComfortable using AI-assisted development tools as a daily practice\nSolid grounding in distributed systems, event-driven architecture, and microservices at meaningful scale\nStrong technical communication - able to mentor other engineers and influence direction without needing formal authority\nBonus Points\nExperience in payments, fintech, banking, or another regulated industry\nExperience with real-time, low-latency, or high-availability systems\nExperience embedding AI/ML models directly into customer-facing product features (prompt/workflow design, RAG, evaluation pipelines)\nExposure to internal platform or infrastructure engineering work\nA track record of technical writing, conference talks, or open-source contribution\nExperience conducting technical interviews or contributing to hiring\nWhat We Offer\nTechnically challenging work on a platform processing mission-critical payment transactions for financial institutions worldwide\nBe part of a truly global product development organization - real centers of engineering excellence spread across multiple regions, organized around product families and technical capabilities rather than geography for its own sake, with engineers everywhere shaping our core products and technical direction\nA cloud-native, automation-first engineering culture that treats quality, security, and developer experience as competitive advantages, not compliance checkboxes\nReal career growth - ACI actively develops engineers into senior technical leaders and engineering managers; your trajectory here is yours to define\nAn AI-native team that embraces modern tooling and gives engineers real latitude to experiment, improve, and lead\nCompetitive compensation and benefits\nHybrid model - typically 2-3 days in-office across ACI's global hub locations\nL3 production support rotation, shared across the team - the escalation path for incidents that couldn’t be resolved by earlier support tiers\nSome domestic and international travel (5-10%) as needed for customer or cross-team engagements\nEqual Opportunity & Compliance\nACI Worldwide is an Equal Opportunity Employer; all qualified applicants are considered without regard to race, color, religion, gender, gender identity, sexual orientation, national origin, genetics, disability, age, or veteran status. This role requires adherence to ACI's Code of Business Conduct and Ethics, and - given access to sensitive payment data - compliance with applicable security and data-protection standards (PCI-DSS, SOC 2, GDPR, CCPA). Comprehensive background screening is required. 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