--- title: 'Security Software Engineer at HIFI' canonical: 'https://feeny.ai/job/security-software-engineer-hifi-new-york-8ne7qb4605x4' type: 'job' last_seen: '2026-11-07' --- # Security Software Engineer at HIFI - **Company:** HIFI - **Location:** New York, NY - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-11-04 - **Last confirmed live:** 2026-11-07 - **Apply:** https://jobs.ashbyhq.com/hifi/b87454db-52cb-44a2-931b-cfbd49c80d03 ## Job description ## About HIFI HIFI is a stablecoin infrastructure company building technology for the next-generation of financial products. We build tools for payments and tokenized money products across money movement, cards, and capital markets. Institutions and enterprises already use our platform and APIs to move billions of dollars in production environments around the world, and we are still early. Founded in 2022, our organization is flat and our team is talent dense. We work in person at our office in Flatiron and are intentional about who we work with. We've raised $37 million from world-class investors, including a Series A led by Left Lane Capital. ## About the Team HIFI's engineering team builds the payments infrastructure that fintechs and financial institutions use to move money on stablecoin rails. The team owns the APIs, ledger, and on-chain systems behind every payment HIFI processes, and works closely with product and compliance to make sure that infrastructure is reliable, secure, and ready for regulated use. As HIFI's volume grows and more institutions build on our platform, this team will decide how stablecoin payments hold up at the scale and standard that traditional financial infrastructure is held to. As a Security Engineer at HIFI you will help own the security of our company and the infrastructure behind our payments products day to day. You'll build HIFI's security program from the ground up, including identity and access management, endpoint security, and the cloud and network controls that protect our systems and data. This is a hands-on role with real ownership: you'll set the security roadmap based on risk, put core capabilities like monitoring, incident response, and secrets management in place, and write the policies that govern how HIFI handles access and information. You'll also be the person the team relies on to keep HIFI ready for audits and partner security reviews as we expand into more regulated markets. ## What you will build - Design and implement the HIFI security roadmap from first principles to production, prioritizing by risk. - Lead threat modeling and hardening for our money movement systems. - Build core security capabilities, including monitoring and detection, incident response, secrets management, API security, and CI/CD hardening. - Own cloud and network security architecture, including segmentation, encryption, and least-privilege access. - Own endpoint and identity security across our devices and SaaS tools. - Reinforce engineering best practices around secure development and infrastructure. - Write and maintain information security policies and procedures. - Ensure HIFI meets information security compliance and audit expectations as we scale to more regulated markets. - Collaborate with engineering, product, compliance, and leadership to move fast without compromising safety. You might be a fit if - 6+ years of experience in security engineering. - Deep, hands-on AWS and network security experience, with infrastructure managed in Terraform. - Experience owning security controls in a regulated environment, such as payments or financial services. - Strong web application and API security skills, including modern authentication and authorization. - Experience writing audit-ready policies and procedures. - Experience building security practices from the ground up in a fast-paced startup. - Comfort writing and debugging backend code, ideally JavaScript/TypeScript. - Hands-on experience with SIEM, MDM, and database security, especially Postgres. - A builder's mindset: you ship practical fixes quickly and know when good enough is safe enough. - Interest in stablecoins and their potential to change how money moves around the world. ## Why This Role Matters HIFI moves billions of dollars for banks and fintechs, and keeping that money safe depends on the security of everything behind it, from our cloud infrastructure to the laptops our team works on. This is a chance to build HIFI's security program from its foundation and make safety a default part of how the company operates as it grows. Additional Requirement Must be within a commutable distance from our office and able to work in person most days of the week. ## Equal Opportunity Statement HIFI is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other legally protected status. We also provide reasonable accommodations during the hiring process. Featured benefits Medical insurance, Vision insurance, Dental insurance ## About HIFI ## Company Overview - **One-liner**: HIFI builds composable API infrastructure for programmable money, enabling developers to move, convert, route, and orchestrate value across stablecoins and bank rails. - **Entity Type**: Private (Seed stage; total funding $8.2M) - **Headquarters**: New York City, United States - **Founded**: 2022 (per LinkedIn) / 2023 (per Built In) - **Founders**: Zach Walsh (CEO & Co-Founder); Jake Walsh (Head of Partnerships) ## Core Business - **Primary industry**: Financial services / Payments infrastructure (stablecoin and programmable money) - **Target customers**: B2B – developers, fintechs, enterprises (from two-person startups to Fortune 100s) who need to move money programmatically across blockchains and traditional bank rails. - **Mission statement**: “Rethink what a dollar can be” – turn money into software with embedded rules, behaviors, and logic. ## Products & Services - **HIFI API Platform**: A set of composable API endpoints that handle deposits (bank, card, wallet), payment routing to any destination, programmable capital controls (approvals, limits, restrictions), and issuance/management of real-world assets as on-chain tokens. - **Stablecoin Infrastructure**: Multi-chain settlement engines, private transactions, cross-border payouts, automated treasury management, and conversion between stablecoins and fiat. - **Compliance & Security Layer**: Built-in KYC/KYB, sanctions screening, SOC 2 Type II compliance, hardened key custody, isolated wallets, role-based access, and encrypted transaction telemetry. - **Bank Partnerships**: Registered MSB with principal-agent bank partnerships for settlement and custody in a regulated environment. ## Market Standing - **Valuation/Market Cap**: Not disclosed (private company) - **Key Metric**: Total raised = **$8.2M** (Seed + Pre-seed rounds); billions of dollars in payment volume already processed. - **Notable Investors**: Antler (led pre-seed round); 10 investors in the 2024 Seed round; other unnamed participants. - **Growth Signals**: - Headcount grew **+171% YoY** (LinkedIn) to ~19–25 employees. - Billions of dollars moved through the platform. - Active in multiple regions (US, Middle East, Japan) with global operations. - Recent job postings (Software Engineer, Payments Program Manager) signal scaling. ## Competitive Advantages - **Programmable money at the asset level** – Not just a payment rail; money itself becomes code (rules, logic, behaviors embedded in the token). - **Dual infrastructure** – Bridges stablecoin rails (multi-chain) and traditional bank rails in a single API, with MSB licensing and bank partnerships for regulatory compliance. - **Security-first design** – SOC 2 Type II, audited key custody, deterministic settlement across chains and banks. - **Experienced team** – Founders and engineers from Uber Payments, Mastercard, Visa, Block, Google, and Stanford Blockchain Research. ## Strategic Focus - Scale global payout and treasury automation for enterprises and fintechs. - Deepen multi-chain support and enable “agentic commerce” (software that can hold, decide, and move money autonomously). - Expand regulatory coverage (already in US, Middle East, Japan) and bank partnerships. - Continue to hire engineering talent to build complex transaction logic and infrastructure. ## Why Work Here - **Culture & Values**: “Think like an owner,” “Progress over perfection,” “Trust is built into the stack,” and “Default to written thinking.” Emphasis on long-term value, shipping and learning in production, and designing for systemic impact. - **Work Environment**: Hybrid model (employees engage in a combination of remote and on-site work); primary office in New York City. In-office presence expected at NYC headquarters. - **Team & Growth**: Small but fast-growing team (~19–25 people) with a technical majority (8 out of ~14 identified as technical). High ownership and direct impact on global financial infrastructure. - **Perks & Stack**: Tech stack includes Node.js, AWS, SQL, JavaScript, Figma, Slack; interest in people who care about quality and impact. Career page highlights solving hard problems in payments and stablecoins alongside a mission-driven team. ## Sources 1. [hifi.com/company](https://www.hifi.com/company) 2. [hifi.com](https://www.hifi.com/) 3. [builtin.com/company/hifi-1](https://builtin.com/company/hifi-1) 4. [linkedin.com/company/hifibridge](https://www.linkedin.com/company/hifibridge) 5. [hifi.com/careers](https://www.hifi.com/careers) ## Other roles at HIFI - [Compliance Officer](https://feeny.ai/job/compliance-officer-hifi-new-york-19ksyryka45s) — New York, NY - [Recruiter](https://feeny.ai/job/recruiter-hifi-new-york-567s0ygbrfkj) — New York, NY - [Software Engineer, Blockchain](https://feeny.ai/job/software-engineer-blockchain-hifi-new-york-sygb0dq5h9d7) — New York, NY - [Marketing Lead](https://feeny.ai/job/marketing-lead-hifi-new-york-mbfkh0gzctp1) — New York, NY - [Account Executive, Stablecoins](https://feeny.ai/job/account-executive-stablecoins-hifi-new-york-1gad2sqd2fyk) — New York, NY - [Security Software Engineer](https://feeny.ai/job/security-software-engineer-motive-canada-8ve2s45wecp1) — Canada - [Security Software Engineer](https://feeny.ai/job/security-software-engineer-runsybil-united-states-1pj8gsxey1nz) — United States - [Security Software Engineer](https://feeny.ai/job/security-software-engineer-canonical-worldwide-1t7pwj1b1q1t) — Worldwide