{"id":1299804,"url":"https://alion.io/job/opn-senior-backend-engineer-ai-project","title":"Senior Backend Engineer (AI Project)","company":{"id":49561,"name":"Opn","domain":"omise.co","url":"https://alion.io/company/opn","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":{"grade":"D","score":53,"open_postings":19,"ghost_share":0.789,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-19T05:45:15Z"}},"role":"AI/ML","role_family":"AI/ML","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":["Bangkok, Thailand"],"countries":["TH"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":17500,"max_usd":45000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2102},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"GCP","optional":false},{"name":"Go","optional":false},{"name":"gRPC","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"Rest API","optional":false}],"status":"live","first_seen_at":"2026-04-30T00:00:00Z","employer_posted_date":"2026-04-30","last_verified_at":"2026-10-19T23:39:21Z","board_verified":true,"closed_at":null,"days_open":172,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":172},"description":"At Omise, we believe the digitalization of the economy has opened up the world and offers endless opportunities to grow and make meaningful connections with one another. Omise is powered by its payment infrastructure sister company, Omise Payment Holdings, which provides one-stop online payment solutions.\nOmise connects people, businesses and society in innovative ways to provide fair and open access to a growing economic ecosystem under its vision of enabling access to the digital economy for everyone. We are on a mission to make digital finance seamless and borderless for people and businesses. Our solutions are used by thousands of companies worldwide including Toyota, ByteDance, ICBC, SCB, True, Allianz Ayudhya, McDonald’s, BMW, King Power and Pomelo.\nWe are obsessed with solving financial coordination problems and developing new business models and technology that enable businesses to grow. We focus on addressing financial complexities and chokepoints by offering seamless and borderless solutions for our customers because we want them to focus on their core business and value proposition.\nAs a value-driven organization, we are dedicated to selecting and retaining the sharpest minds across all functions. Help us make digital finance seamless and borderless for people and businesses.\nRole Overview\nWe are building a production-grade GenAI platform focused on privacy, security, and\nenterprise use cases.\nAs a Senior Backend Engineer, you will design and build high-performance backend systems\nthat power LLM inference, retrieval-augmented generation (RAG), and agent-based workflows all with strong guarantees around data protection and compliance.\nThis role sits at the intersection of backend engineering, distributed systems, and applied\nAI infrastructure.\nWhat you will be working on\nA next-generation AI platform used in real-world enterprise scenarios.\nSystems that balance performance, safety, and privacy.\nA fast-moving environment where research meets production engineering.\nResponsibilities\nDesign and build scalable backend services and APIs (REST/gRPC) for AI-powered applications.\nDevelop systems for LLM inference orchestration, including:Query processing pipelines\nContext enrichment (e.g., retrieval, memory, tools)\nImplement runtime safety and validation layers:\nInput/output filtering\nPolicy enforcement\n•Abuse and injection detection\n\nBuild and optimize model serving integrations for high-throughput, low-latency inference.\nDevelop data pipelines and storage systems for logs, metadata, and auditability.\nWork closely with ML engineers to productionize research into reliable services.\nContribute to system reliability, observability, and performance optimization\nYou\nCore Engineering\n5-10+ years of experience in backend or distributed systems engineering.\nStrong proficiency in Python, Go, or similar backend languages.\nExperience designing scalable APIs and microservices.\nSystems & Infrastructure\nExperience with cloud platforms (AWS/GCP/Azure).\nFamiliarity with Kubernetes and containerized workloads.\nStrong understanding of system design, reliability, and performance trade-offs.\nAI / Data Systems (Preferred) Experience working with:\nLLM-based systems\nRAG pipelines or search systems\nHigh-throughput inference services\nSecurity & Reliability\nExperience designing secure systems (auth, access control, data protection).\nUnderstanding of multi-tenant systems and isolation.\nNice to Have\nExperience with LLM serving frameworks.\nFamiliarity with real-time or event-driven architectures.\nExposure to privacy-preserving or compliance-driven systems.\nExperience building developer platforms or APIs.\nHow to apply\nIf you liked what you read and believe to be up for the challenge, we'd be pleased to welcome you to the recruitment process for this position. Simply click on apply and submit your contact info. Afterward, this will happen next:\nThe hiring team will review your application\n2-3 Interviews with the hiring team, People Operations team and all stakeholders involved in the process\nWhy you’ll love it here\nWork with other talented, ambitious international colleagues who love their craft\nA modern and well-equipped work environment\nFlexible working hours\nA medical healthcare plan and annual health check-up\nA friendly bunch of colleagues\nWhat we believe in\nWe cultivate teamwork and a trust-based working culture\nWe celebrate diversity and continuous improvement\nGiving our employees the opportunity and create for their own success\nAbout Omise\nFounded in 2013, 500 people\nHeadquartered in Japan, with operational headquarters in Bangkok and offices in Singapore, Indonesia, and Malaysia.\nRaised over $236M of funding to date from institutional investors including SCB10X, SPARX Group Co. Ltd., Toyota Financial Services Corporation, JIC Venture Growth Investments, MUFG Bank, Mars Growth Capital, Ascend Venture Group, and more\nWon Digital Startup of the Year at Digital Thailand Big Bang 2017\nWon Forbes Japan Startup of the Year 2018\nWon 3 awards from International Business Magazine Award 2020Most Innovative Electronic Payment Platform for Singapore\nMost Innovative Seamless Transactions Provider for Singapore\nBest Payment Solutions Provider in Singapore\n\nWon Mizuho Innovation Award 2022 (Q2)\nLife at Omise\nNearly 500 employees work from our six office locations as well as remotely from home or co-working spaces. While we are a global company, a lot of our thinking goes into how to solve payment problems at the hyper-local level to help businesses scale and reach their customers.\nOur core values - simple, real, and beautiful serve as our North Star and are integrated into how we work and the results of our work.\nAt Omise, we empower people to embrace project-ownership and take initiative. We love to see our employees act as the owner of the outcome and confidently provide solutions to each challenge, taking a collaborative teamwork approach. Our fellow employees are encouraged to discuss and share ideas, and are given the freedom to explore all areas of their work, in order to achieve the expected results.\nPeople at Omise are from different backgrounds and together, we contribute to creating an inclusive, friendly, and safe working environment. As a company, we embrace diversity and value open discussions, a learning mindset, professionalism, and respect. “Growing with us” means to celebrate the challenges and to always look for opportunities to learn, develop your skills, and move one step forward each day. If this is the work environment you are looking for, then get in touch with us.\nWe look forward to hearing from you. Omise embraces diversity and nourishes an open and inclusive work environment. We are home to over 35 nationalities and all decisions to hire, promote or discharge are based on merit, competence, performance, and business needs.\nWe do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other applicable legally protected characteristics.\n* Discover how Omise prioritizes and protects your privacy and data by clicking HERE to explore our Human Resources privacy policy before you embark on your journey with us.","description_format":"text","description_chars":7281,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Payment Processing & Gateways"],"lifecycle":[{"event":"open","at":"2026-09-26T11:09:53Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":1,"p_active":0.191,"p_room":0.28,"age_days":172,"expected_fill_days":26,"reasons":["conf:0","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-10-19T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/opn-senior-backend-engineer-ai-project","json_url":"https://alion.io/job/opn-senior-backend-engineer-ai-project.json","meta":{"generated_at":"2026-10-19T23:46:33Z","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":2532,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-20T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"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":49561},"rest":"https://alion.io/mcp/rest/get_company?id=49561"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fopn-senior-backend-engineer-ai-project"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"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%2Fopn-senior-backend-engineer-ai-project"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"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%2Fopn-senior-backend-engineer-ai-project"},{"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/opn-senior-backend-engineer-ai-project\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fopn-senior-backend-engineer-ai-project"}]}