{"id":1003938,"url":"https://alion.io/job/nn-group-senior-mobile-frontend-engineer-freelance-2","title":"Senior Mobile Frontend Engineer (Freelance)","company":{"id":40416,"name":"NN Group","domain":"nn-group.com","url":"https://alion.io/company/fabian-rupprecht-to-leave-nn-group","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":90,"open_postings":116,"ghost_share":0.009,"stale_share":0.353,"repost_share":0.069,"time_to_fill_p50_days":31,"computed_at":"2026-10-22T06:10:10Z"}},"role":"Mobile","role_family":"Mobile","seniority":"senior","employment_type":"freelance","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["The Hague, Netherlands"],"countries":["NL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":155000,"period":"year","method":"role_seniority_country_cell","sample_n":8},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"React Native","optional":false},{"name":"TypeScript","optional":false},{"name":"React.js","optional":true}],"status":"closed","first_seen_at":"2026-09-17T14:19:58Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-20T03:56:05Z","board_verified":false,"closed_at":"2026-10-20T03:56:05Z","days_open":32,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":31},"description":"Get ready to help drive digital change at Nationale Nederlanden (NN), one of the Netherlands' biggest financial services companies. As a Senior Mobile Frontend Engineer, you will contribute to our goal of transforming our company to a product oriented tech company. Based in The Hague, you will make a difference in over 500,000 customers' lives every day. Your new job could very well make a big difference in your work-life balance, too. We're famous for it, and you'll enjoy plenty of freedom in your role, with all the perks of hybrid working. The start date is 1st of October, with a duration of six months, with the possibility of extension.\nWhat you are going to do\n As a Senior Mobile Frontend Engineer, you will help us create a more tech-driven culture at NN. In this role, you will:\nWork with modern technologies such as React Native, Typescript, AWS, and GraphQL \nBuild new projects from scratch and contribute to expanding or modernizing existing applications \nTake ownership of services used directly by customers or embedded throughout the organization \nCollaborate with a multidisciplinary team to design, develop, and maintain reliable and scalable solutions \nThe team owns dozens of services that support both our end users and the broader NN organization.\nWhat we offer you\nOur people are the driving force behind our organisation. We value the knowledge and expertise you bring. We believe that your temporary commitment can take our organisation to a higher level. We offer you:\nCompetitive hourly rate depending on your knowledge and experience\nStartdate as soon as possible for +/- 6 months\nHybrid way of working, partly from home and partly from the office\nInternational working environment with loads of knowledge sharing\nWho you are\n An all-round software engineer able to work comfortably on front-end projects, we are looking for someone who can develop high-quality code and have high-be curious, and actively acquires new skills, new methods and processes to make our customers even happier. The ideal candidate has passion for technology and wants to learn continuously and push the team to reach our common goals.\n7+ years of experience building production-grade applications with React Native, React, and TypeScript\nExperience designing and maintaining shared libraries or SDKs, with a strong focus on API design, versioning, and backward compatibility\nStrong understanding of mobile authentication and security, including biometrics, PIN/OTP flows, secure storage, and identity verification\nExperience working across JavaScript and native mobile platforms (iOS/Android), collaborating on React Native bridge integrations\nStrong software engineering practices, including testing, code quality, CI/CD, and delivering reliable, maintainable solutions in Agile teams\nWho you will work with\nYou are going to be part of a team of unique awesome individuals with different backgrounds and cultures, we embrace diversity as an instrument to produce an even richer experience for both colleagues and customers. As all our tech departments are international with English being the main language. Relevant training will be accommodated when needed.\nAny questions?\nDo you have any questions about the job or the procedure? Please contact Amy Brouwer, .\nAre you unsure whether you meet the criteria 100%? We would like to encourage you to apply anyway. We are curious about your unique qualities!","description_format":"text","description_chars":3441,"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":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Hybrid work"],"hiring_locations":[{"name":"Netherlands","iso":"NL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Hotels & Resorts"],"lifecycle":[{"event":"open","at":"2026-09-17T14:19:58Z"},{"event":"close","at":"2026-09-24T13:04:59Z"},{"event":"reopen","at":"2026-09-24T17:00:34Z"},{"event":"reopen","at":"2026-10-12T00:14:49Z"},{"event":"close","at":"2026-10-20T03:56:05Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/nn-group-senior-mobile-frontend-engineer-freelance-2","json_url":"https://alion.io/job/nn-group-senior-mobile-frontend-engineer-freelance-2.json","meta":{"generated_at":"2026-10-22T08:24:09Z","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":4624,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"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":40416},"rest":"https://alion.io/mcp/rest/get_company?id=40416"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnn-group-senior-mobile-frontend-engineer-freelance-2"},{"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%2Fnn-group-senior-mobile-frontend-engineer-freelance-2"},{"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%2Fnn-group-senior-mobile-frontend-engineer-freelance-2"},{"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/nn-group-senior-mobile-frontend-engineer-freelance-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnn-group-senior-mobile-frontend-engineer-freelance-2"}]}