Senior Software Engineer - ASYSTEM : Job Details

About the role

Arch is looking for a Senior Software Engineer to join our small, ambitious team and help build the future of financial infrastructure. As an early engineer, youll play a foundational role in designing, developing, and scaling new products from Zero to One.

This is a high-impact role that involves everything from collaborating with users to deeply understand their workflows, to architecting backend systems, integrating with vendors, and building resilient, observable software. Your technical decisions will shape our platform, development practices, and long-term scalability.

We especially value experience in fintech whether building lending platforms, financial data infrastructure, payments, or anything where trust, accuracy, and reliability are paramount.

What you will do:

• Define and scope new products alongside engineers, designers, and business stakeholders
• Architect scalable services, APIs, and frontend applications
• Own end-to-end execution of features from idea to deployment and iteration
• Collaborate closely with design to create clean, intuitive user experiences
• Evaluate and adopt the best-fit tools, frameworks, and vendors
• Develop internal tooling that accelerates our pace and increases reliability

Qualifications

• 5+ years of software development experience at a top tech company or fast-moving startup
• Strong proficiency in TypeScript, React, and Next.js (or similar frontend frameworks)
• Demonstrated ability to independently drive complex projects to completion
• Strong systems thinking and an ability to break down complex product problems
• Excellent communicator, comfortable working across disciplines and with external partners
• Passion for building in the open: rapid prototyping, iteration, and user feedback
• Ownership mindset: you thrive in ambiguous environments and dont wait to be told what to do
• Strongly preferred: Experience building fintech products lending, payments, trading, or financial data systems

Location Policy

Arch is excited to bring on the right candidate, no matter where they are in the world, although we would prefer a candidate in NYC, in our beautiful office in the bustling neighborhood of Soho. A stipend is provided to make sure that all needs are met, wherever the candidate is.