Our Company

Arch is a Series B financial technology company that automates the management of private investments improving access understanding and the human experience of investing across asset classes.

Private investments such as venture capital hedge funds and private equity make up roughly 25% of the investment universe. Traditionally investors advisors banks families and managers track hundreds of investments in complicated spreadsheets file folders and busy inboxes. Not only is this tedious and time-consuming but it is rife with opportunity for manual data entry errors inconsistent reporting and lost information. Enter Arch.

Arch delivers standardized data documents and insights in a single platform avoiding the need to chase information across dozens or hundreds of portals. Our purpose is to save investors time while empowering them to make more informed investment decisions leading to better financial outcomes.

We are a fast-growing dynamic team of 200 serving over 400 clients including several of Americas largest banks families and financial institutions. Weve over doubled the size of the company every year since inception and we are looking to hire in all departments as we scale.

The Role

As a Staff Software Engineer youll serve as a technical leader and force multiplier across our engineering organization. This is a senior individual contributor role with outsized scope. Youll own complex high-impact systems set technical direction and elevate the engineers around you. Your work will shape the foundation of our platform and help Arch scale to meet the demands of a rapidly growing client base.

Key responsibilities:

• Architect and drive complex cross-functional technical initiatives from conception to production with a focus on scalability and long-term maintainability.

• Set technical direction for core platform systems making informed trade-offs to ensure performance security and reliability at scale.

• Partner with product design and data teams to define and deliver high-impact features end to end influencing roadmap decisions with technical insight.

• Mentor and level up engineers across the team through code reviews design discussions and hands-on technical guidance.

• Identify and resolve systemic engineering challenges including technical debt infrastructure gaps and cross-team bottlenecks that impact velocity.

Reach out to us if you have:

• 8 years of experience building and scaling web-based software products.

• A track record of owning and delivering complex technical projects with measurable cross-team impact.

• Deep expertise in full-stack development distributed systems or large-scale backend architecture.

• Experience influencing technical direction and driving alignment across teams without formal authority.

• Excellent communication skills you can articulate complex technical concepts clearly to both engineers and non-technical stakeholders.

Bonus Points if you have:

• Experience in the fintech space or building on investment platforms.

• Prior experience as a founding or early-stage engineer at a fast-growing startup.

• Background in building developer tooling internal platforms or infrastructure to improve engineering efficiency at scale.

A Note about us:

All of our full-time roles are based onsite at our New York City office where our team thrives on in-person collaboration and dynamic teamwork. Being onsite daily enables us to build strong connections collaborate effectively to solve challenges and foster an engaging environment focused on shipping product and delivering exceptional service to our clients.

We encourage applicants currently located in or willing to relocate to the NYC area to join us in this exciting hands-on workspace.

Some perks of working for Arch include:

• Strong Team - Youll be backed by a strong team that consistently exceeds client expectations and ships new products quickly.

• Your work is high impact - Being part of a small team means you have real responsibility and impact from day one. Youll be involved in discussions that drive the growth and direction of our platform from the very beginning.

• Product Market Fit - We have strong product market fit exceptionally low churn and have grown mostly organically through word of mouth.

• Team community and camaraderie - We have enormous trust in each other and always do what we can do to support one another. Were always ready to step in to help.

• Great office - weve invested in a great space for the Arch team to come together at 18th and Park in Manhattan (the old Buzzfeed / NYT headquarters).

• Lunch is on Us - Grab lunch on us while youre in the office and take a break to laugh brainstorm or just hang out with your teammates over a meal.

Required Experience:

Staff IC