{"id":544890,"url":"https://alion.io/job/primer-senior-engineer-fullstack-growth","title":"Senior Engineer, Fullstack - Growth","company":{"id":172390,"name":"Primer","domain":"primer.io","url":"https://alion.io/company/primer-3","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":95,"open_postings":5,"ghost_share":0,"stale_share":0.2,"repost_share":0,"time_to_fill_p50_days":50,"computed_at":"2026-11-02T06:13:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["HU","PL","RO","ZA"],"hiring_countries_total":4,"salary":null,"salary_estimate":{"min_usd":59000,"max_usd":95000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":233},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-09-08T10:13:03Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-11-02T10:14:26Z","board_verified":true,"closed_at":null,"days_open":55,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":55},"description":"An Introduction to Primer\nPrimer is the unified infrastructure for global payments. We give finance and payments teams the visibility and control to reduce complexity, improve performance, and capture more revenue - all from a single platform.\nBacked by Sofina, Peak XV Partners, ICONIQ, Tencent, Accel, and Balderton, we're building the payments layer the world's best companies rely on.\nWatch our showcase >\nRead up on our $100m Series C\nLearn more about our culture >\nWhich team will you be joining?\nYou'll be joining the Growth team, which owns merchant onboarding and activation: everything between a new account and a first live payment. It's a newly formed team taking on a new product area for Primer, so there's a lot of scope to shape both what we build and how.\nPrimer is remote-first and globally distributed - always will be.\nWhat will you be doing?\nLead frontend architecture and technical direction for the self-serve onboarding and platform experience, with real ownership over how it's built, not just what gets shipped\n\nYou’ll spend roughly 80% of your hands-on codebase time on frontend and 20% on backend. That split is a guide, not a rule, and it will shift in either direction depending on what we're focused on at the time.\n\nPartner closely with Design to take onboarding and platform experience from concept to production, shaping the details that decide whether a merchant's first steps with Primer feels effortless or frustrating\n\nMentor and raise the bar for the engineers who join the team, you're the person newer engineers learn frontend craft from\n\nSet frontend conventions and quality standards for a team that's still being built - architecture reviews, code quality, testing approach, all early enough that your calls stick\n\nContribute to the Python backend where it's needed to unblock frontend work or ship a feature end to end, without needing deep backend expertise going in\n\nWhat we're looking for\nStrong, proven frontend expertise - production experience architecting and building complex frontend applications, not just consuming a design system\n\nComfortable being the most senior frontend voice in the room, including pushing back on design or product where the frontend reality demands it\n\nSome backend experience and a genuine willingness to work in a Python codebase - depth isn't required, but you shouldn't be reluctant to touch it\n\nExperience mentoring other engineers, ideally including people earlier in their career than you\n\nNice to have, not required:\nExperience building or integrating payment products\n\nExperience in a growth, onboarding, or activation-focused product surface\n\nWhat you should be aware of:\nThe team is still forming, so you're inheriting mentoring responsibility for people who haven't been hired yet - the \"who\" of who you're mentoring is still unknown\n\nRemote-first, high autonomy, no hand-holding - you're expected to set your own standards, not follow someone else's playbook\n\nEarly-stage team means some ambiguity on process and tooling that a more established team would already have solved\n\nA typical interview process\nAn initial intro call with a Talent Partner\n\nAn interview with the Hiring Manager\n\nChallenge Stage - Contextualised to the role\n\nA final, values-alignment interview\n\nWhat's the culture like at Primer?\nWe're building a culture where people can do their best work and be proud of the impact they have. You'll be working with people who are mission-driven, smart, and reflective, and who are genuinely invested in building exceptional products and delivering success for our merchants.\nWe work remotely, and have done since day one. We believe that building a successful, profitable company goes beyond proximity. We invest in our relationships through great remote working practices and thoughtfully designed face-to-face time, including workations, our annual company retreat, and access to co-working spaces across most major cities.\nThe work is challenging. Scaleups are a challenge, and building category-defining products is a challenge. But there's a meaningful difference between a challenge and a struggle. At Primer, the right challenge comes with the right support: strong onboarding, a collaborative environment, and a team that is genuinely invested in your success. It's never something you face alone.\nOur benefits\nWe are fully remote and globally distributed; and have been since day one\nCompetitive share options\nFlexible holiday, with 25 days minimum to be taken\nCo-working space access across major cities\nWorkations & Company Retreat\nThe best equipment for your role\n£500 towards your home office setup\nGenerous learning budget\nPrivate Medical Insurance\nA broad set of additional perks and benefits (depending on location)\nDon’t meet every single requirement?\nAt Primer, we're dedicated to building a diverse, inclusive, and authentic workplace. If you're excited about this role but your experience doesn't align perfectly with every qualification listed, we encourage you to apply. You may be the right candidate for this or other roles.\nPrimer is committed to the equal treatment of all current and prospective employees and adopts a zero-tolerance approach to discrimination, regardless of age, disability, sex, sexual orientation, pregnancy and maternity, race or ethnicity, religion or belief, gender identity, marriage and civil partnership, or any other background or belief.","description_format":"text","description_chars":5398,"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":["Health insurance","Home office","Stock options"],"hiring_locations":[{"name":"Hungary","iso":"HU","kind":"country"},{"name":"Poland","iso":"PL","kind":"country"},{"name":"Romania","iso":"RO","kind":"country"},{"name":"South Africa","iso":"ZA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Payment Processing & Gateways"],"lifecycle":[{"event":"open","at":"2026-09-08T11:35:04Z"}],"visa":[],"liveness":{"score":25,"band":"fade","label":"Fading","p_open":1,"p_active":0.454,"p_room":0.55,"age_days":54,"expected_fill_days":50,"reasons":["conf:0","velocity","win:tail"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/primer-senior-engineer-fullstack-growth","json_url":"https://alion.io/job/primer-senior-engineer-fullstack-growth.json","meta":{"generated_at":"2026-11-02T10:50:48Z","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":15076,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":172390},"rest":"https://alion.io/mcp/rest/get_company?id=172390"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fprimer-senior-engineer-fullstack-growth"},{"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%2Fprimer-senior-engineer-fullstack-growth"},{"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%2Fprimer-senior-engineer-fullstack-growth"},{"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/primer-senior-engineer-fullstack-growth\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fprimer-senior-engineer-fullstack-growth"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":544890}},{"tool":"search_jobs","arguments":{"company":"primer.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":544890},"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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