Senior Software Engineer (Typescript + Go/Rust/C++)

• Salary: $160K - $220K/ year
• Location: US (remote-first, office optional)

Description

We’re hiring a Lead Mobile Engineer to drive the user-facing side of our platform. This role is all about mobile: you’ll design and build iOS and Android apps, refine cross-platform frameworks, and craft interfaces that feel fast, intuitive, and trustworthy. You’ll also shape the SDKs and developer tools that make our mobile app better. We’re looking for deep mobile expertise (React Native), native iOS/Android knowledge, and strong UX instincts. You’ve shipped real products in fintech or blockchain, know how to balance speed with rigor, and care about clean architecture, security, and reliability. In this role, you’ll own projects end to end, turning complex requirements into simple, trustworthy workflows for admins and their end-users.

Responsibilities

• Design, build, and maintain secure, scalable backend services and APIs (REST).
• Architect databases and microservices for performance, reliability, and growth.
• Own projects end to end: from requests, implementation to production and iteration.
• Troubleshoot complex issues, resolve performance bottlenecks, ensure resilience.
• Contribute to CI/CD pipelines, observability, and overall engineering excellence.
• Collaborate with product, security, and leadership on roadmap and technical direction.
• Document systems, share knowledge, and support client-facing discussions.

Requirements

• 8+ years of backend software engineering experience in fintech or blockchain.
• Strong in TypeScript, plus ideally at least one low-level language (Rust, Go, C++).
• Proven track record building scalable APIs, infrastructure, and developer tools.
• Expertise with databases (PostgreSQL, DynamoDB, NoSQL) and AWS services.
• Skilled in microservices, CI/CD pipelines, observability, and SSLDC practices.
• Familiar with applied cryptography, PKI, and backend security fundamentals.
• Strong problem-solving, clear communication, and ability to deliver under pressure.

Compensation & Package

• Salary: $160,000-220,000 per year (full-time).
• Equity: 100-200 stock options vested over 4 years.
• Benefits: Healthcare, 401K, and travel expenses.
• Equipment: MacBook Pro + essentials.

Interview Process

• Hiring Manager Interview: Intro call with Co-CEO (30 min).
• Behavioural Interview: Personality and cognitive tests (45 min)
• Take Home Test: Coding test in a language of your choice.
• Behavioural Interview: Focus interviews with the hiring panel (180 min).
• Final Interview: Final interview with management (30 min)