---
title: 'Staff Software Engineer at Arch'
canonical: 'https://feeny.ai/job/staff-software-engineer-arch-new-york-4ckwp1p9ckm3'
type: 'job'
last_seen: '2026-09-05'
---

# Staff Software Engineer at Arch 

- **Company:** Arch 
- **Location:** New York, NY
- **Compensation:** $200k–$280k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-04-24
- **Last confirmed live:** 2026-09-05
- **Apply:** https://jobs.ashbyhq.com/arch.co/e4dc64bb-1cd2-460b-9cf3-6957e5e56490/application

**Skills:** Full-stack development, Distributed systems, Large-scale backend architecture, Web-based software development, Fintech experience, Investment platforms, Developer tooling, Internal platforms, Infrastructure

> Serve as a technical leader and force multiplier across the engineering organization, owning complex, high-impact systems and setting technical direction. The role involves architecting scalable solutions, mentoring engineers, and partnering with cross-functional teams to deliver high-impact features.

## Job description

## 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 America’s largest banks, families, and financial institutions. We’ve 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, you'll serve as a technical leader and force multiplier across our engineering organization. This is a senior individual contributor role with outsized scope — you'll 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.

## YOUR RESPONSIBILITIES WILL INCLUDE:

- 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 working 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:

Most 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, move quickly, and deliver exceptional service to our clients.

For select roles, we are also open to candidates based in Boston. If a role is open to Boston, it will be listed explicitly in the job location.

We encourage applicants who are located in or open to relocating to the listed location to apply and join us in this hands-on, collaborative environment

SOME PERKS OF WORKING FOR ARCH INCLUDE:

- Strong Team - You’ll 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. You'll 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. We're always ready to step in to help.
- Great office: Our new home at 199 Water Street gives us a beautiful, energizing space to come together as a team, collaborate more easily, and keep building the next chapter of Arch.
- Lunch is on Us - We’ll keep the team fueled with lunch in the office, whether you’re catching up with teammates, talking through an idea, or just taking a well-earned break.

## About Arch 

## Company Overview
- **One-liner**: Arch provides a unified alternatives management platform that automates and digitizes the administration of private investments for allocators, advisors, and their partners.
- **Entity Type**: Private (Series B)
- **Headquarters**: New York City, New York, USA
- **Founded**: 2018
- **Founders**: Ryan Eisenman (CEO), Joel Stein (CTO), Jason Trigg (CPO & COO)

## Core Business
- Primary industry/industries: Financial Services, Fintech, Investment Operations
- Target customers: B2B; targeting institutions, RIAs, multi-family offices, single-family offices, fund administrators, accounting firms, banks, and other allocators and service providers in the alternative investment space.
- Mission or purpose statement: "Our mission is to revolutionize the alternative investment industry by connecting all stakeholders through one unified platform, where cutting-edge technology meets unparalleled collaboration, data-driven insights, and exceptional service. Said differently: Arch is the way to unlock the full value of your alts business." [arch.co](https://arch.co/)

## Products & Services
- **Arch Platform (SaaS)**: A comprehensive, digital operating system for managing the lifecycle of alternative investments. It aggregates data, documents, and communications from across a portfolio (PE, VC, hedge funds, real estate), provides automated insights including AI summaries, streamlines workflows with task management, and facilitates secure collaboration among all stakeholders. Key modules include Aggregation, Insights, Workflows, and Collaboration. [arch.co](https://arch.co/)

## Market Standing
- **Valuation**: Not publicly disclosed.
- **Key Metric**: Total funding of **$77.5M** (across Seed, Series A, and Series B rounds). LinkedIn reports annual revenue of **$2.1M**, but for a private, VC-backed fintech in a growth phase, total funding is the more prominent metric. [linkedin.com](https://www.linkedin.com/company/archsoftware)
- **Notable Investors/Partners**: Lead investors include **Oak HC/FT** (Series B lead) and **Menlo Ventures** (Series A lead). The company supports over 450 allocators, including 150 single-family offices, 100 RIAs, and 4 of the top 20 global banks. [builtin.com](https://builtin.com/company/arch-0) [linkedin.com](https://www.linkedin.com/company/archsoftware)
- **Growth Signals**:
  - Secured a **$52M Series B** in October 2025, indicating strong investor confidence. [linkedin.com](https://www.linkedin.com/company/archsoftware)
  - Manages over **$250 billion in private assets**. [builtin.com](https://builtin.com/company/arch-0)
  - Rapid **headcount growth of +57.3% year-over-year**, now with over 227 employees (Aug 2026 data). [linkedin.com](https://www.linkedin.com/company/archsoftware)
  - Active job postings have grown **+107.1% year-over-year**, with 29 open roles. [linkedin.com](https://www.linkedin.com/company/archsoftware)
  - LinkedIn follower base grew **+78.2% year-over-year**. [linkedin.com](https://www.linkedin.com/company/archsoftware)

## Competitive Advantages
- **Unified Platform**: Combines data aggregation, document management, workflow automation, and collaboration into a single platform, replacing fragmented manual processes for an industry known for its heavy reliance on PDFs, spreadsheets, and email.
- **AI-Powered Insights**: Integrates AI to summarize complex documents like investor letters, saving clients significant time and providing a modern edge over legacy methods.
- **Strong Network Effects**: As more investors, fund managers, and service providers use the platform, it becomes more valuable for all parties, creating a powerful ecosystem lock-in.
- **Focus on a High-Value Niche**: The alternative investment administration market is large, complex, and underserved by modern technology. Arch’s deep specialization provides a defensible position.

## Strategic Focus
- **Product Expansion**: Likely focused on expanding the depth and breadth of its platform modules (e.g., Insights, Workflows) and integrations with other key financial systems.
- **Scaling Client Base**: Broadening its reach from single-family offices and RIAs to larger institutions and global banks, as evidenced by its Series B raise and enterprise client wins.
- **Talent Acquisition**: Aggressively hiring to scale its engineering, product, sales, and operations teams to meet growing demand. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/arch.co) [linkedin.com](https://www.linkedin.com/company/archsoftware)

## Why Work Here
- **Culture & Team**: Describes itself as a "tight-knit New York City team" with a culture of "caring" for clients, product excellence, and team well-being. They seek "dynamic and driven teammates with a strong bias for action." [arch.co](https://arch.co/team.html)
- **Work Policy**: Operates on an **In-Office** model from their New York City headquarters. [builtin.com](https://builtin.com/company/arch-0)
- **Growth Stage**: As a well-funded Series B company with rapid revenue and headcount growth, employees have opportunities to work on complex, impactful problems and grow their careers alongside the company.
- **Notable Perks**: Employee benefits include **healthcare, dental, and vision insurance; equity/stock options; generous parental leave; daily free meals and snacks; commuter benefits; and a focus on promotion from within.** [builtin.com](https://builtin.com/company/arch-0) [arch.co](https://arch.co/team.html)

## Sources
1. [arch.co](https://arch.co/)
2. [builtin.com](https://builtin.com/company/arch-0)
3. [arch.co/team.html](https://arch.co/team.html)
4. [linkedin.com](https://www.linkedin.com/company/archsoftware)
5. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/arch.co)

## Other roles at Arch 

- [Software Engineer | Early Careers, 2027 Start](https://feeny.ai/job/software-engineer-early-careers-2027-start-arch-new-york-pyxkvyf9smxs) — New York, NY
- [Business Development Representative | Early Careers, Summer 2027 Start](https://feeny.ai/job/business-development-representative-early-careers-summer-2027-start-arch-new-bcamr8jsarj3) — New York, NY
- [Operations Engineer | Early Careers, 2027 Start](https://feeny.ai/job/operations-engineer-early-careers-2027-start-arch-new-york-1yzydy49jej4) — New York, NY
- [Operations Associate | Early Careers, Summer 2027 Start](https://feeny.ai/job/operations-associate-early-careers-summer-2027-start-arch-new-york-2aah9p870m2v) — New York, NY
- [Business Development Representative](https://feeny.ai/job/business-development-representative-arch-new-york-v5xsw6mbc3gp) — New York, NY
- [Data Processing Analyst (12 Month Fixed Term Contract)](https://feeny.ai/job/data-processing-analyst-12-month-fixed-term-contract-arch-new-york-z3j8zh10zczq) — New York, NY
- [Growth Marketing Director](https://feeny.ai/job/growth-marketing-director-arch-new-york-anx5k3037ny7) — New York, NY
- [IT Support Engineer](https://feeny.ai/job/it-support-engineer-arch-new-york-0rc93md9w4h0) — New York, NY
- [Security Operations Engineer](https://feeny.ai/job/security-operations-engineer-arch-new-york-vzf8h7a6w498) — New York, NY
- [Senior Recruiter](https://feeny.ai/job/senior-recruiter-arch-new-york-80epf64x8m1g) — New York, NY