{"id":2505104,"url":"https://alion.io/job/sofi-staff-backend-engineer-custody-core-crypto-security","title":"Staff Backend Engineer, Custody Core (Crypto Security)","company":{"id":12297,"name":"SoFi","domain":"sofi.com","url":"https://alion.io/company/sofi","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":80,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":13,"computed_at":"2026-10-15T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["San Francisco, United States","Seattle, United States","New York, United States","Frisco, United States","Jacksonville, United States"],"countries":["US"],"hiring_countries":["US","PR"],"hiring_countries_total":2,"salary":null,"salary_estimate":{"min_usd":197000,"max_usd":327000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":452},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Platform Engineering","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Staking","optional":false},{"name":"Zero Trust","optional":false}],"status":"live","first_seen_at":"2026-07-31T17:25:18Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-15T10:28:45Z","board_verified":true,"closed_at":null,"days_open":75,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":75},"description":"Employee Applicant Privacy Notice\nWho we are:\nShape a brighter financial future with us.\nTogether with our members, we’re changing the way people think about and interact with personal finance.\nWe’re a next-generation financial services company and national bank using innovative, mobile-first technology to help our millions of members reach their goals. The industry is going through an unprecedented transformation, and we’re at the forefront. We’re proud to come to work every day knowing that what we do has a direct impact on people’s lives, with our core values guiding us every step of the way. Join us to invest in yourself, your career, and the financial world.\nThe role\nWe are looking for a Staff Backend Engineer to help build the next generation of SoFi's digital asset custody platform. This engineer will design and develop the core services that power secure custody, blockchain transaction processing, wallet infrastructure, and institutional digital asset products.\nThis role sits at the center of crypto infrastructure, working closely with Security, Platform Engineering, Product, Treasury, and Operations to build highly available systems responsible for protecting customer assets.\nThe ideal candidate enjoys solving distributed systems problems, designing resilient APIs, and building financial infrastructure where security and reliability are first-class requirements.\nWhat you’ll do:\nDesign and build backend services supporting SoFi's digital asset custody platform\nDevelop secure transaction orchestration services for deposits, withdrawals, transfers, staking, and treasury operations\nBuild integrations with custody providers, blockchain infrastructure, and institutional settlement networks\nDesign APIs supporting retail and institutional crypto products\nDevelop services supporting wallet lifecycle management and blockchain interactions\nImprove platform resiliency through redundancy, disaster recovery, observability, and automated recovery mechanisms\nOptimize transaction throughput while maintaining strict security controls\nBuild scalable event-driven architectures supporting blockchain state changes and transaction processing\nPartner closely with Security Engineering to implement cryptographic controls and authorization workflows\nCollaborate with Product and Infrastructure teams to deliver new digital asset capabilities\nWhat you’ll need:\n7+ years of backend software engineering experience\nStrong experience with applied cryptography, key management architectures (HSMs, KMS), or Multi-Party Computation (MPC) protocols.\nProven experience building high-stakes financial transaction systems (e.g., trading engines, payment rails, digital asset wallets) with a zero-trust, security-first mindset.\nStrong understanding of blockchain fundamentals, transaction signing lifecycles, and wallet architecture.\nStrong experience with distributed systems and cloud-native architectures\nExperience building highly available production services\nStrong understanding of REST APIs, asynchronous messaging, and event-driven systems\nExperience with AWS or comparable cloud platforms\nExperience with PostgreSQL, Redis, Kafka, or similar technologies\nStrong understanding of CI/CD and modern software development practices\nExcellent debugging and production incident response skills\nNice to have:\nExperience working with digital assets or blockchain infrastructure\nExperience integrating with custody platforms such as Fireblocks, BitGo, or Anchorage\nExperience building financial services infrastructure\nFamiliarity with blockchain transaction lifecycle and wallet architecture\nExperience designing secure approval workflows\nUnderstanding of distributed consensus and cryptographic systems\nExperience supporting institutional financial platforms\nCompensation and Benefits\nThe base pay range for this role is listed below. Final base pay offer will be determined based on individual factors such as the candidate’s experience, skills, and location. \nTo view all of our comprehensive and competitive benefits, visit our Benefits at SoFi page!\nSoFi provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion (including religious dress and grooming practices), sex (including pregnancy, childbirth and related medical conditions, breastfeeding, and conditions related to breastfeeding), gender, gender identity, gender expression, national origin, ancestry, age (40 or over), physical or medical disability, medical condition, marital status, registered domestic partner status, sexual orientation, genetic information, military and/or veteran status, or any other basis prohibited by applicable state or federal law.\nThe Company hires the best qualified candidate for the job, without regard to protected characteristics.\nPursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.\nNew York applicants: Notice of Employee Rights\nSoFi is committed to an inclusive culture. As part of this commitment, SoFi offers reasonable accommodations to candidates with physical or mental disabilities. If you need accommodations to participate in the job application or interview process, please let your recruiter know or email .\nWe are unable to accommodate remote work from Hawaii, Alaska or Puerto Rico at this time.\nInternal Employees\nIf you are a current employee, do not apply here - please navigate to our Internal Job Board in Greenhouse to apply to our open roles.","description_format":"text","description_chars":5564,"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":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"},{"name":"Puerto Rico","iso":"PR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto","Blockchain Infrastructure","Consumer Loans & Pawnshops","Investing Apps & Robo-Advisors"],"lifecycle":[{"event":"open","at":"2026-10-14T07:12:12Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.284,"p_room":0.28,"age_days":75,"expected_fill_days":13,"reasons":["conf:3","velocity","win:tail","crowd:"],"computed_at":"2026-10-15T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/sofi-staff-backend-engineer-custody-core-crypto-security","json_url":"https://alion.io/job/sofi-staff-backend-engineer-custody-core-crypto-security.json","meta":{"generated_at":"2026-10-15T12:44:01Z","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":19688,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-16T00:00:00Z"}},"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":12297},"rest":"https://alion.io/mcp/rest/get_company?id=12297"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsofi-staff-backend-engineer-custody-core-crypto-security"},{"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%2Fsofi-staff-backend-engineer-custody-core-crypto-security"},{"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%2Fsofi-staff-backend-engineer-custody-core-crypto-security"},{"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/sofi-staff-backend-engineer-custody-core-crypto-security\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsofi-staff-backend-engineer-custody-core-crypto-security"}]}