{"id":1300631,"url":"https://alion.io/job/line-man-wongnai-line-pay-backend-software-engineer-java-korea-based","title":"[LINE Pay] Backend Software Engineer (Java) - Korea Based","company":{"id":49577,"name":"LINE MAN Wongnai","domain":"lmwn.com","url":"https://alion.io/company/line-man-wongnai","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Breezy","truth_index":{"grade":"B","score":75,"open_postings":12,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":35,"computed_at":"2026-10-03T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Seoul, South Korea"],"countries":["KR"],"hiring_countries":["KR"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ElasticSearch","optional":false},{"name":"HBase","optional":false},{"name":"Java","optional":false},{"name":"Redis","optional":false},{"name":"Spring Framework","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-01T09:11:14Z","employer_posted_date":"2026-09-01","last_verified_at":"2026-10-04T02:22:52Z","board_verified":true,"closed_at":null,"days_open":32,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":32},"description":"About LINE Pay\nLINE Pay is more than just a payment system; it's a fintech platform transforming the world. Just as LINE Messenger connected the daily lives of hundreds of millions of people, LINE Pay is opening up new possibilities in finance beyond those connections.\nLINE Pay provides secure and convenient payments through its digital wallet, offering quick purchase, money transfer, and top-up services. From using public transportation to purchasing products from partner companies and paying various utility bills, LINE Pay can be used conveniently in all aspects of daily life.\nLINE Pay is an integrated online and offline payment platform under LINE MAN Wongnai and LINE Thailand, following the acquisition in August 2023 and it is growing into a key player in the rapidly expanding digital payment market in Thailand.\nWhat you’ll Do:\nThe LINE Pay (Thailand) Korea office is in its initial stages, offering a rare opportunity to experience the excitement of building something from the ground up and witness firsthand the rapid growth of an early-stage team. We're committed to establishing a stable and innovative system through our professional expertise on this journey. You'll have the chance to reshape Thailand's financial ecosystem with technology and realize your vision.\nAs a Software Engineer joining the LINE Pay (Thailand) Korea office, you will be responsible for the core development of LINE Pay for the Thai market.\nDesign and optimize the LINE Pay core, using Java, Spring, and various distributed systems, to support fast and secure transactions.\nDevelop payment features tailored to the needs of Thai users and businesses.\nDesign technical solutions to provide innovative services while complying with Thai financial regulations.\nEstablish a foundation for stable processing of large transaction volumes through clean code and thorough testing.\nHave at least 4 years of experience as a server developer.\nBelieve in the innovative potential of fintech and are self-motivated by resonating with LINE Pay's vision.\nAre passionate about software development and find fulfillment in creating value through code.\nValue teamwork and can contribute to building a better system with colleagues.\nHave excellent adaptability and learning skills in a rapidly changing environment.\nPossess proactive leadership and strong problem-solving skills.\nHave no restrictions for overseas travel.\nProficient in the Java ecosystem (Java 8 or higher, Spring Framework) and have experience effectively solving complex problems using it.\nPossess deep design knowledge and experience with relational databases and SQL.\nHave a strong understanding of CS fundamentals (data structures, algorithms, operating systems, networking).\nHave experience designing and implementing RESTful APIs.\nAre familiar with writing unit tests and integration tests.\nYou will play a leading role in solving the problems of the Thai fintech market and realizing the vision of LINE Pay. Here, your code will change the financial future of Thailand.\nWhat you’ll Need:\nHave at least 4 years of experience as a server developer.\nBelieve in the innovative potential of fintech and are self-motivated by resonating with LINE Pay's vision.\nAre passionate about software development and find fulfilment in creating value through code. \nValue teamwork and can contribute to building a better system with colleague\nHave excellent adaptability and learning skills in a rapidly changing environment. \nPossess proactive leadership and strong problem-solving skills.\nHave no restrictions for overseas travel.\nTechnical requirements\nProficient in the Java ecosystem (Java 8 or higher, Spring Framework) and have experience effectively solving complex problems using it.\nPossess deep design knowledge and experience with relational databases and SQL.\nHave a strong understanding of CS fundamentals (data structures, algorithms, operating systems, networking).\nHave experience designing and implementing RESTful APIs.\nAre familiar with writing unit tests and integration tests.\nEven if you don't perfectly meet all the technical requirements above, we encourage you to apply if you believe you can contribute with your abilities and passion.\nIt'd be Great if you have:\nExperience in the finance/fintech domain or experience in developing payment/settlement systems and knowledge of security.\nEnglish communication skills (oral and written).\nExperience in developing and operating high-traffic service systems.\nExperience with NoSQL databases (Redis, MongoDB, HBase, Elasticsearch, etc.).\nSkill Set:\n#Java #DB #MicroServices #SQL","description_format":"text","description_chars":4588,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"South Korea","iso":"KR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["POS Systems","Delivery","Marketplaces","Ride Hailing"],"lifecycle":[{"event":"open","at":"2026-09-26T11:41:04Z"}],"visa":[],"liveness":{"score":43,"band":"fade","label":"Fading","p_open":1,"p_active":0.578,"p_room":0.75,"age_days":31,"expected_fill_days":35,"reasons":["conf:7","stale_co","velocity","win:late"],"computed_at":"2026-10-03T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/line-man-wongnai-line-pay-backend-software-engineer-java-korea-based","json_url":"https://alion.io/job/line-man-wongnai-line-pay-backend-software-engineer-java-korea-based.json","meta":{"generated_at":"2026-10-04T02:52:32Z","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":4356,"day_limit":5000,"remaining_today":644,"minute_limit":60,"resets_at":"2026-10-05T00:00:00Z"}}}