Full Stack Engineer (55C5CF3)

Referment; Philadelphia (Philadelphia County); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Healthcare

Unlimited PTO

401(k) retirement plan

Annual book budget

Software budget

Job summary

Referment is seeking a Full Stack Engineer to join its early-stage fintech team in Philadelphia. You’ll work directly with founders on core product, infrastructure and risk systems, taking ideas from concept to production.

You’ll own features end-to-end across frontend and backend, shape architecture and product decisions, and help scale a novel financial product in the prediction markets space.

Qualifications

• Strong backend experience in high-scale environments.
• Experience designing, testing and implementing UI/UX.
• Interest in quantitative systems and DeFi.

Responsibilities

• Design, build and iterate on the frontend product and backend architecture.
• Develop and improve the risk engine powering margin and lending systems.
• Own infrastructure, deployments and system reliability end-to-end.
• Take ownership of features and products from idea through to shipped code.
• Work closely with the founders to help shape product and technical decisions.
• Continuously improve performance, scalability and the overall user experience.

Skills

Backend systems

UI/UX design

Quantitative systems

DeFi / trading

Learn quickly

Tools

Solidity

Vyper

C++

Rust

AWS

GCP

Job description

Full Stack Engineer

Prediction Markets/DeFi/FinTech/Early-Stage Startup

We’re working with an ambitious, early-stage fintech company building the infrastructure behind the next generation of prediction markets. Looking for a Full Stack Engineer to join the engineering team at a pivotal stage of the company’s growth - this is a high-impact role for someone who wants to work close to the founders, take genuine ownership and help build a novel financial product from the ground up.

If you’re the kind of engineer who would rather ship, learn and iterate than spend months planning, this could be a very interesting opportunity.

The Role

You’ll play a key role in building the company’s core product, infrastructure and risk systems. Working directly with the founders and other senior engineers, you’ll have significant autonomy and responsibility - taking ideas from initial concept through to production. You’ll be involved across the stack, with the opportunity to influence both the technical architecture and the product itself.

What You’ll Be Doing

• Design, build and iterate on the frontend product and backend architecture
• Develop and improve the risk engine powering margin and lending systems
• Own infrastructure, deployments and system reliability end-to-end
• Take ownership of features and products from idea through to shipped code
• Work closely with the founders to help shape product and technical decisions
• Continuously improve performance, scalability and the overall user experience

What We’re Looking For

We’re looking for an ambitious engineer who combines strong technical ability with curiosity, initiative and a bias towards action.

You’ll Ideally Have

• Strong experience building backend systems, ideally in a high-scale environment
• Experience designing, testing and implementing UI/UX
• An interest in or experience with quantitative systems, risk, trading infrastructure or DeFi protocols
• A preference for shipping and iterating rather than over-planningA genuine interest in, or understanding of, prediction markets
• Experience matters, but the team places significant emphasis on drive, adaptability and the ability to learn quickly.

It would be a major plus if you have experience with:

• DevOps and cloud infrastructure, particularly AWS and/or GCP
• Statistics, data and feature engineering
• MLOps
• Blockchain technology and smart contract development, particularly Solidity or Vyper
• Low-level languages used in production systems, particularly C++ or Rust

The team is based in Philadelphia, so candidates already in the area - or those open to relocating - will be particularly attractive.

Why join?

This is an opportunity to get involved early in a company attempting to build something genuinely new within financial markets.

You’ll Have

• Direct exposure to the founders
• Significant ownership and autonomy
• The opportunity to influence both the product and engineering direction
• A chance to work on challenging problems spanning fintech, DeFi, risk and trading
• A highly ambitious, technically minded team
• Plenty of opportunity to learn and grow as the company develops

Benefits

• Healthcare
• Unlimited PTO
• 401(k) retirement plan
• Annual book budget
• Software budget

If you’re an ambitious Full Stack Engineer looking for a role where you can have a genuine impact - rather than simply owning one small part of a much larger machine - we’d love to hear from you.

#Referment