Thera is seeking a hands-on Staff Engineer to own the technical foundation and scale their financial OS for SMBs. This role involves architecture, engineering execution on complex problems, and tech-leading a small team.
100k – 250k
On-siteFullstack Engineering
About the role
What you'll own
Architecture and technical direction across payroll, payments, and new products
Engineering execution on the hardest problems in the stack
Helping hire and tech-lead a small, high-quality team (starting ~5 engineers)
Decisions on security, reliability, scalability, and compliance in your areas
Tight partnership with product and ops to translate real workflows into systems
Roadmaps, prioritization, and actually shipping
What you'll build
Systems powering payroll and money movement
Products across Spend, Docs, Cash, and Accounting
Internal tooling that reduces manual work and errors
Infrastructure that increases velocity without breaking things
Your first 90 days
30 days
Get deep on the system, data flows, and constraints
Identify the biggest risks (payments, data integrity, scaling)
Ship a meaningful improvement on the spend product
60 days
Start addressing the highest-leverage technical gaps
Map out future builds across the roadmap
Begin influencing how we hire and level engineers
90 days
Set technical direction in your areas
Improve engineering velocity and reliability
Help build out our engineering in-person culture
About you
You've built and scaled real systems
You're still hands-on and like being close to the code
Strong systems thinker
You move fast and take ownership
Comfortable operating in a regulated environment
You've mentored or tech-led engineers before
Stack today: TypeScript + Java/Kotlin (flexible)
Why Thera
You shape the technical foundation in your areas
You work directly with founders
Your decisions immediately impact the company's trajectory
Backed by YC, 10X Founders, Zillionize, and Amino Capital.
Builds end-to-end customer-facing experiences for AI agents, from Python/FastAPI backends and workflows to React/TypeScript UIs. Architects product platform, prototypes AI interactions, ensures scalability; requires 5+ years full-stack experience with AI products.
120k – 180k
Hybrid5+ YOEFullstack Engineering
Software Engineer, Full Stack (Senior, Staff+)
KustomerNew York, NY
Senior full stack engineer builds end-to-end features in small pods using Node.js, React, Golang, and AWS, integrates AI capabilities, optimizes performance, and mentors juniors. Requires 7+ years experience, strong systems knowledge, and AI tool proficiency.
130k – 215k
Hybrid7+ YOEFullstack Engineering
Member of Technical Staff
HarperSan Francisco, CA
Builds full-stack AI agents, workflow orchestration, and voice AI systems that automate insurance business operations like lead qualification, customer service, and underwriting at scale. Requires 1-4 years experience shipping production AI with Python/TypeScript proficiency.
140k – 200k
On-siteFullstack Engineering
Member of Technical Staff II - Full Stack
IllumioSunnyvale, CA
Full-stack engineer building network segmentation products for cybersecurity, focusing on UI/UX optimization, architecture enhancements, and cross-team API improvements. Requires 2+ years in React, Node.js, and modern web development.
141k – 162k
On-siteFullstack Engineering
Staff Software Engineer
FluidstackSan Francsisco, CA +3
Staff Software Engineer building core infrastructure primitives, domain models, and AI agent platforms for high-speed AI data center development and delivery at Fluidstack. Requires strong abstraction taste, rapid learning in new domains, experience structuring unstructured data, and fluency with AI coding tools.