Thera is building the financial OS for modern SMBs. Payroll, payments, treasury, spend, accounting, and docs in one system that actually works end-to-end.
We’re looking for a hands-on Staff Engineer to own the technical foundation in our highest-leverage areas and help us scale from “great product” to category-defining company.
This is not a sit-back-and-manage role. You’ll be in the code, in the architecture, and in the room making high-stakes decisions daily.
📍 NYC, 5 days/week
Why this role exists
We have:
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a product customers use
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real workflows running through it
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increasing complexity across payments, accounting, and ops
We need someone who can turn that into a durable, scalable system.
What you’ll own
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Architecture and technical direction across payroll, payments, and new products
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Engineering execution on the hardest problems in the stack
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Helping hire and tech-lead a small, high-quality team (starting ~5 engineers)
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Decisions on security, reliability, scalability, and compliance in your areas
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Tight partnership with product and ops to translate real workflows into systems
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Roadmaps, prioritization, and actually shipping
What you’ll build
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Systems powering payroll and money movement
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Products across Spend, Docs, Cash, and Accounting
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Internal tooling that reduces manual work and errors
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Infrastructure that increases velocity without breaking things
Your first 90 days
30 days
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Get deep on the system, data flows, and constraints
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Identify the biggest risks (payments, data integrity, scaling)
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Ship a meaningful improvement on the spend product
60 days
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Start addressing the highest-leverage technical gaps
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Map out future builds across the roadmap
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Begin influencing how we hire and level engineers
90 days
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Set technical direction in your areas
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Improve engineering velocity and reliability
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Help build out our engineering in-person culture
About you
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You’ve built and scaled real systems
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You’re still hands-on and like being close to the code
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Strong systems thinker
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You move fast and take ownership
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Comfortable operating in a regulated environment
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You’ve mentored or tech-led engineers before
Stack today: TypeScript + Java/Kotlin (flexible)
Not a fit if
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You want a pure management role
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You avoid ambiguity or messy real-world systems
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You’re not willing to be in-person in NYC
Why Thera
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You shape the technical foundation in your areas
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You work directly with founders
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Your decisions immediately impact the company’s trajectory
About the company
Backed by YC, 10X Founders, Zillionize, and Amino Capital.