{"id":3534725,"url":"https://alion.io/job/lumen-solutions-group-senior-native-ios-developerengineer-swift-aws","title":"Senior Native iOS Developer/Engineer (Swift + AWS)","company":{"id":4442287,"name":"Lumen Solutions Group","domain":"lumensolutions.com","url":"https://alion.io/company/lumen-solutions-group","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_company_offices","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":68000,"max_usd":201000,"period":"year","method":"global_role_seniority_cell","sample_n":514},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon ECS","optional":false},{"name":"API Gateway","optional":false},{"name":"AWS","optional":false},{"name":"AWS Fargate","optional":false},{"name":"AWS Lambda","optional":false},{"name":"Core Data","optional":false},{"name":"iOS SDK","optional":false},{"name":"Objective-C","optional":false},{"name":"Offline-First","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"Swift","optional":false},{"name":"Agile","optional":true},{"name":"Dynatrace","optional":true},{"name":"Java","optional":true}],"status":"live","first_seen_at":"2026-10-30T15:42:22Z","employer_posted_date":null,"last_verified_at":"2026-10-30T15:42:22Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Company Description \nLumen Solutions Group Inc. is a technology consulting Services company based in Florida. We provide a wide array of experienced business and IT professionals supporting clients from solution design to implementation and support. We specialize in professional IT consulting services, IT Staffing, Business/IT Strategy, Business Process Blueprints, Enterprise Architecture, Enterprise Transformation. \n\nJob Title: Senior Native iOS Developer/Engineer (Swift + AWS)\nJob Location: Washington, DC (Remote Quarterly Travel for PI meeting)\nJob Type: Contract\n\nJob Summary\nRequired Technical SkillsStrong hands-on experience in native iOS application development using Swift.\nExperience maintaining and supporting existing Objective-C components.\nStrong experience with iOS SDK, Xcode, and iPhone/iPad applications.\nExperience with offline-first mobile application architecture.\nHands-on experience with Core Data and local data persistence.\nExperience implementing transaction queues, conflict resolution, and data synchronization.\nExperience integrating mobile applications with REST APIs.\nWorking knowledge of AWS services, including API Gateway, Lambda, ECS Fargate, and Cognito.\nExperience with OAuth 2.0 and OpenID Connect (OIDC).\nExperience integrating with Spring Boot or comparable backend services.\nKnowledge of peer-to-peer synchronization technologies such as Ditto or similar solutions.\n\nPreferred QualificationsExperience with Dynatrace Mobile RUM and application performance monitoring.\nExperience integrating barcode scanners and Bluetooth peripherals.\nExperience with enterprise MDM deployments.\nKnowledge of iOS accessibility and VoiceOver.\nExperience with SAFe Agile methodology.\nBackground in transportation, passenger rail, ticketing, retail POS, logistics, or transaction-intensive mobile applications.\nExperience developing high-availability applications for frontline operational users.\n\nKey Responsibilities\n1. Native iOS Application DevelopmentDesign, develop, enhance, and maintain native iOS applications using Swift and Objective-C.\nBuild mobile features supporting ticket scanning, passenger manifests, ticket searches, and check-in workflows.\nDevelop reusable mobile components, forms, and user interfaces.\nImplement reliable transaction processing and application workflows.\nOptimize applications for supported iPhone and iPad devices.\n2. Offline-First Architecture & Data SynchronizationDevelop applications that function reliably with limited or no network connectivity.\nImplement offline data storage, local transaction queues, and synchronization processes.\nHandle transaction conflicts, reconnection, and replay of queued operations.\nImplement peer-to-peer synchronization using technologies such as Ditto or similar solutions.\nMaintain data consistency between mobile devices and backend systems.\nPrevent duplicate transactions and data inconsistencies during synchronization.\n3. AWS Cloud Services & Backend IntegrationIntegrate native iOS applications with AWS-hosted backend services and REST APIs.\nWork with AWS API Gateway, Lambda, ECS Fargate, and Cognito.\nIntegrate mobile applications with Spring Boot REST APIs.\nImplement secure authentication and authorization using OAuth 2.0 and OpenID Connect (OIDC).\nSupport secure token management, API communication, and error handling.\nCollaborate with backend teams on API contracts, data models, and transaction processing.\n4. Mobile Device Integration & Enterprise DeploymentIntegrate mobile applications with barcode scanners and Bluetooth peripherals.\nSupport enterprise Mobile Device Management (MDM) deployment environments.\nEnsure application stability across supported iPhone and iPad devices.\nAddress device lifecycle, threading, memory management, and performance issues.\nImplement accessibility requirements, including VoiceOver.\n5. Performance Monitoring & Production SupportMonitor mobile application performance using Dynatrace Real User Monitoring (RUM).\nTroubleshoot application crashes, performance issues, and synchronization failures.\nImprove application responsiveness, reliability, and usability.\nSupport production troubleshooting and end-to-end mobile/backend integration.\n6. Agile Delivery & CollaborationParticipate in Agile and SAFe delivery practices.\nCollaborate with backend engineers, architects, QA teams, and business stakeholders.\nParticipate in application design, development, testing, and production support.\nContribute to technical design decisions and reusable development practices.\n\nLumen Solutions Group Inc is an equal opportunity employer. All qualified applicants will be considered for employment without regard to any legally protected status.","description_format":"text","description_chars":4691,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Professional Services"],"lifecycle":[{"event":"open","at":"2026-10-30T16:52:35Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":29,"reasons":["seen:1","win:early"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/lumen-solutions-group-senior-native-ios-developerengineer-swift-aws","json_url":"https://alion.io/job/lumen-solutions-group-senior-native-ios-developerengineer-swift-aws.json","meta":{"generated_at":"2026-11-01T07:57:10Z","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":12274,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":4442287},"rest":"https://alion.io/mcp/rest/get_company?id=4442287"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flumen-solutions-group-senior-native-ios-developerengineer-swift-aws"},{"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%2Flumen-solutions-group-senior-native-ios-developerengineer-swift-aws"},{"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%2Flumen-solutions-group-senior-native-ios-developerengineer-swift-aws"},{"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/lumen-solutions-group-senior-native-ios-developerengineer-swift-aws\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flumen-solutions-group-senior-native-ios-developerengineer-swift-aws"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3534725}},{"tool":"search_jobs","arguments":{"company":"lumensolutions.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3534725},"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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