{"id":1759393,"url":"https://alion.io/job/n-ix-senior-leader-kotlin-engineer","title":"Senior Leader Kotlin Engineer","company":{"id":13248,"name":"N-iX","domain":"n-ix.com","url":"https://alion.io/company/n-ix","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":82,"open_postings":11,"ghost_share":0,"stale_share":0.727,"repost_share":0,"time_to_fill_p50_days":42,"computed_at":"2026-10-19T05:45:15Z"}},"role":"Mobile","role_family":"Mobile","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Ukraine","Poland"],"countries":["UA","PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":57000,"max_usd":102000,"period":"year","method":"role_seniority_country_cell","sample_n":10},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Kotlin","optional":false},{"name":"Kubernetes","optional":false},{"name":"MySQL","optional":false}],"status":"live","first_seen_at":"2026-09-29T06:40:22Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-19T13:32:12Z","board_verified":true,"closed_at":null,"days_open":20,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":20},"description":"N-iX is looking for a Senior Lead Kotlin Engineer to join our team.\nOur customer is a fintech company that provides flexible buy-now-pay-later solutions, enabling consumers to split purchases into transparent, interest-free, or interest-based payments. The customer's Platform team is responsible for managing critical services that are essential to the success and sustainability of the organisation. In simple terms, the team handles transactional communication send-outs to customers via email, SMS, and push notifications. These services demand attention to detail, proactive maintenance, and swift response times to ensure seamless operations. The recent high-priority initiatives include re-architecture/platform modernisation, high availability, and internationalisation efforts; these are vital for our organisation's growth and competitiveness in the market. These initiatives require dedicated expertise and resources to execute efficiently and effectively.\nMain Responsibilities:\nYou will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. \nYou will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs. \nYou will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them. \nYou will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on-call efforts. \nYou will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks. \nYou will help develop talent on your team by providing feedback and guidance, and leading by example. \nOn-Call Rotation - There would be an on-call rotation for this role as a requirement.\nRole Requirements:\nYou have 5+ years of experience designing, developing and launching backend systems at scale using Kotlin. \nYou have a track record of developing highly available distributed systems using technologies like AWS, MySQL/Dynamo and Kubernetes. \nYou have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. 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