{"id":4337752,"url":"https://alion.io/job/payoneer-senior-fullstack-engineer-ai-fluent","title":"Senior Fullstack Engineer (AI Fluent)","company":{"id":58732,"name":"Payoneer","domain":"payoneer.com","url":"https://alion.io/company/payoneer-com","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":86,"open_postings":21,"ghost_share":0.048,"stale_share":0.429,"repost_share":0.048,"time_to_fill_p50_days":55,"computed_at":"2026-11-15T07:52:55Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Herzliya, Israel","Ramat HaSharon, Israel"],"countries":["IL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"AI Agents","optional":false},{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"C#","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Node JS","optional":false},{"name":"RabbitMQ","optional":false},{"name":"React.js","optional":false},{"name":"SQL","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-11-15T11:17:38Z","employer_posted_date":"2026-11-15","last_verified_at":"2026-11-15T16:12:39Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About Payoneer\nFounded in 2005, Payoneer is the global financial platform that removes friction from doing business across borders, with a mission to connect the world’s underserved businesses to a rising global economy. We’re a community with over 2,500 colleagues all over the world, working to serve customers, and partners in over 190 countries and territories.\nBy taking the complexity out of the financial workflows-including everything from global payments and compliance to multi-currency and workforce management, to providing working capital and business intelligence-we give businesses the tools they need to work efficiently worldwide and grow with confidence.\nGlilot\nHybrid\nFull-time\nAs a Senior Fullstack Engineer on Payoneer’s Customer Security team, you will play a key role in building and securing the experiences that protect millions of customers worldwide. You will work across both backend and frontend, developing scalable microservices and modern, secure user interfaces that power authentication, login, multi-factor authentication (MFA), and account protection.\nThis is an opportunity to take end-to-end ownership of complex, high-impact features, from backend architecture and APIs to frontend implementation and production. You will contribute to our cloud transformation and help shape how we build software using AI-powered development tools and agents.\nWhat you'll do: \nDesign, develop, and maintain end-to-end fullstack features, working across scalable backend services and customer-facing frontend applications.\nBuild and enhance secure, responsive, and intuitive user interfaces using React, with a focus on login, authentication, MFA, and account protection experiences.\nDevelop reusable frontend components and integrate them with backend APIs and microservices.\nDesign and implement scalable, secure, and reliable backend services supporting millions of customers worldwide.\nOwn complex features end to end, from requirements and system design through development, deployment, monitoring, and production support.\nDevelop and maintain distributed, microservices-based systems, ensuring high availability, performance, and scalability.\nTake an active role in modernizing our systems and transitioning from on-premises infrastructure to cloud-native architectures.\nCollaborate closely with Product, UX/UI, Architecture, Security, and other engineering teams to deliver seamless and secure customer experiences.\nLeverage AI-powered development tools and agents to accelerate development, improve code quality, and optimize engineering workflows.\nContribute to technical decisions, architectural discussions, and continuous improvements across the engineering organization.\nWho you are: \nExperience \n7+ years of hands-on software development experience, with a strong backend foundation and experience building fullstack applications.\nStrong proficiency in C#/.NET, Java, Node.js, or similar backend technologies.\nHands-on experience with modern frontend frameworks, preferably React.\nExperience developing customer-facing web applications, building reusable UI components, and integrating frontend applications with backend APIs.\nProven experience designing, developing, and maintaining microservices-based architectures.\nStrong experience with complex, production-scale distributed systems.\nSolid understanding of software architecture, system design, and engineering best practices.\nExperience working with SQL and NoSQL databases.\nExperience with messaging and event-driven systems such as Kafka, RabbitMQ, or AWS SQS.\nFamiliarity with cloud environments and container orchestration technologies such as Kubernetes.\nHands-on experience integrating AI-powered tools into daily development workflows, beyond basic code assistance.\nStrong ownership mindset, with the ability to independently drive solutions from initial requirements to production.\nExcellent problem-solving skills, adaptability, and the ability to thrive in a dynamic engineering environment.\nWhat could set you apart\nStrong hands-on experience with React and modern frontend development practices.\nPrevious experience developing end-to-end fullstack applications in complex, large-scale environments.\nExperience with authentication, authorization, identity management, MFA, or account security.\nExperience with C#/.NET and MongoDB.\nFamiliarity with AI Agents, MCP, model selection, AI workflows, and orchestration.\nExperience implementing AI-powered capabilities or agents in production environments.\nExperience migrating applications from on-premises infrastructure to cloud environments.\nThe Payoneer Ways of Working \nAct as our customer’s partner on the inside\nLearning what they need and creating what will help them go further. \nDo it. Own it.\nBeing fearlessly accountable in everything we do. \nContinuously improve\nAlways striving for a higher standard than our last. \nBuild each other up \nHelping each other grow, as professionals and people. \nIf this sounds like a business, a community, and a mission you want to be part of, apply today.\nWe are committed to providing a diverse and inclusive workplace. Payoneer is an equal opportunity employer, and all qualified applicants will receive consideration for employment no matter your race, color, ancestry, religion, sex, sexual orientation, gender identity, national origin, age, disability status, protected veteran status, or any other characteristic protected by law. If you require reasonable accommodation at any stage of the hiring process, please speak to the recruiter managing the role for any adjustments. Decisions about requests for reasonable accommodation are made on a case-by-case basis.","description_format":"text","description_chars":5664,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Payment Processing & Gateways","Currency Exchange & FX Payments"],"lifecycle":[{"event":"open","at":"2026-11-15T16:12:39Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":55,"reasons":["conf:1","win:early"],"computed_at":"2026-11-15T17:20:00Z"},"pay":null,"html_url":"https://alion.io/job/payoneer-senior-fullstack-engineer-ai-fluent","json_url":"https://alion.io/job/payoneer-senior-fullstack-engineer-ai-fluent.json","meta":{"generated_at":"2026-11-15T17:20:00Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":9330,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-16T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":58732},"rest":"https://alion.io/mcp/rest/get_company?id=58732"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpayoneer-senior-fullstack-engineer-ai-fluent"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"free","price":{"credits":0,"usd":0},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fpayoneer-senior-fullstack-engineer-ai-fluent"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fpayoneer-senior-fullstack-engineer-ai-fluent"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/payoneer-senior-fullstack-engineer-ai-fluent\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpayoneer-senior-fullstack-engineer-ai-fluent"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4337752}},{"tool":"search_jobs","arguments":{"company":"payoneer.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4337752},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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