Hadrius Verified
FinTech, Artificial Intelligence, Regulatory Technology (RegTech), Software
Senior Software Engineer
New York, New York, United StatesOnsiteFull TimeSenior$200,000–$250,000 /yrPosted 2 months agoHidden Gem · YC Startup
Role summary
Seeking a Senior Software Engineer to join a fast-growing FinTech startup in New York City. This full-time, onsite role involves designing and building the future of the financial system using a tech stack of Django/Python, React/Next/TypeScript, and AWS. The ideal candidate will be a hands-on leader, comfortable with autonomy and a broad scope of responsibility, with at least 3 years of professional software engineering experience. Responsibilities include implementing key features, contributing to product discussions, and eventually owning product domains. Experience in a startup environment and with mature codebases is preferred.
**This is a full-time role to be a Senior Software Engineer, located onsite in New York, NY.**
### About you
1. You’re [hard working, ambitious](https://github.com/calderwoodra/blog/blob/master/images/gh_activity_photo.png?raw=true) and you prefer to “lead from the front”. As a leader on the team, folks will be looking to you as an example of success and you value being a role model and force multiplier for others on the team.
2. You’re looking for a fast growing startup. Here’s [our revenue growth](https://github.com/calderwoodra/blog/blob/master/images/rev_growth_7_30.png?raw=true?raw=true) and [head count growth](https://github.com/calderwoodra/blog/blob/master/images/Screenshot%202025-04-18%20at%207.08.02%E2%80%AFAM.png?raw=true).
3. You’re looking for [teammates](https://github.com/calderwoodra/blog/blob/master/images/bowling_photo.jpeg?raw=true), [not coworkers](https://github.com/calderwoodra/blog/blob/master/images/finra_photo.jpeg?raw=true) - folks you’ll be able to count on to in a pinch and make your team’s goals possible. Here’s a [bonus picture](https://github.com/calderwoodra/blog/blob/master/images/felix_photo.jpeg?raw=true) of our CTO’s son closing his first sale.
### About the role
You will work directly with the founding team to design and build the future of the financial system from the ground floor. We pride ourselves on our “hands off culture” by having very few meetings and giving engineers and creators a broad scope of responsibility and autonomy. You’ll be working in-person 5 days/week in our lower-manhattan NYC office, building side-by-side with the rest of the team. Our tech stack is django/python, react/next/typescript, hosted on AWS.
### Responsibilities
**First week:**
* Day 1: push your first PR to production
* Understand the core problems Hadrius solves, our ICP, our value proposition, the Hadrius platform, pricing structure, and roadmap
* Learn the Hadrius way: how we work and build for high growth
* Get up to speed on the codebase
* Contribute to product discussions in weekly all hands
**First month:**
* Implement a big feature that directly leads to new revenue for the business
* You’re already standing out on the team and “leading from the front”.
* Helping others through code-review and technical design reviews
**First 3 months & beyond:**
* Becoming the defacto owner of your domain within the product
* PMs, CSMs, Sales and Founders all know "you” are the go-to person for your work
* Training and hiring new team members as you scale your impact across the team
### Qualifications
* 3+ years of professional experience as a software engineer
* Organized and clear communicator with a penchant for solving problems
* Bachelor's or Master's degree in Computer Science or a related field
### Nice to haves
* Previous experience in a fast-paced startup environment
* Experience working in a mature React codebase in production
* Experience working in a mature Django/Python codebase in production
### Benefits
* 401k (100% match up to 6%)
* Healthcare, dental, vision, etc.
* Housing stipend if you live in FiDi
### About you
1. You’re [hard working, ambitious](https://github.com/calderwoodra/blog/blob/master/images/gh_activity_photo.png?raw=true) and you prefer to “lead from the front”. As a leader on the team, folks will be looking to you as an example of success and you value being a role model and force multiplier for others on the team.
2. You’re looking for a fast growing startup. Here’s [our revenue growth](https://github.com/calderwoodra/blog/blob/master/images/rev_growth_7_30.png?raw=true?raw=true) and [head count growth](https://github.com/calderwoodra/blog/blob/master/images/Screenshot%202025-04-18%20at%207.08.02%E2%80%AFAM.png?raw=true).
3. You’re looking for [teammates](https://github.com/calderwoodra/blog/blob/master/images/bowling_photo.jpeg?raw=true), [not coworkers](https://github.com/calderwoodra/blog/blob/master/images/finra_photo.jpeg?raw=true) - folks you’ll be able to count on to in a pinch and make your team’s goals possible. Here’s a [bonus picture](https://github.com/calderwoodra/blog/blob/master/images/felix_photo.jpeg?raw=true) of our CTO’s son closing his first sale.
### About the role
You will work directly with the founding team to design and build the future of the financial system from the ground floor. We pride ourselves on our “hands off culture” by having very few meetings and giving engineers and creators a broad scope of responsibility and autonomy. You’ll be working in-person 5 days/week in our lower-manhattan NYC office, building side-by-side with the rest of the team. Our tech stack is django/python, react/next/typescript, hosted on AWS.
### Responsibilities
**First week:**
* Day 1: push your first PR to production
* Understand the core problems Hadrius solves, our ICP, our value proposition, the Hadrius platform, pricing structure, and roadmap
* Learn the Hadrius way: how we work and build for high growth
* Get up to speed on the codebase
* Contribute to product discussions in weekly all hands
**First month:**
* Implement a big feature that directly leads to new revenue for the business
* You’re already standing out on the team and “leading from the front”.
* Helping others through code-review and technical design reviews
**First 3 months & beyond:**
* Becoming the defacto owner of your domain within the product
* PMs, CSMs, Sales and Founders all know "you” are the go-to person for your work
* Training and hiring new team members as you scale your impact across the team
### Qualifications
* 3+ years of professional experience as a software engineer
* Organized and clear communicator with a penchant for solving problems
* Bachelor's or Master's degree in Computer Science or a related field
### Nice to haves
* Previous experience in a fast-paced startup environment
* Experience working in a mature React codebase in production
* Experience working in a mature Django/Python codebase in production
### Benefits
* 401k (100% match up to 6%)
* Healthcare, dental, vision, etc.
* Housing stipend if you live in FiDi
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