#Engineering
#Financial Services
#Payments
#Go
#.NET
#Rust
#Node.Js
#Python
#React
#APIs
#Google Cloud
#AWS
#Kubernetes
We're Stronghold, a Forbes Fintech 50 company building open APIs that power modern payments and financial services. Our engineering team is expanding, and we're looking for a senior fullstack engineer who wants to shape the future of decentralized finance and payments infrastructure.
Responsibilities
- Architect, develop, and maintain our payments API platform and cryptocurrency products using Go, .NET, Rust, Node.js, and Python.
- Design new platform features and corresponding APIs for external developers.
- Handle the full development lifecycle for platform projects, from initial vision through final implementation.
- Respond to and prioritize technical issues reported by our enterprise and business customers.
- Collaborate on code reviews, contribute to engineering best practices, and work closely with product and customer-facing teams.
- Drive growth and innovation across decentralized finance and payments products through scalable backend development and performance optimization.
Must-haves
- 6+ years of professional software development experience on a team.
- Proficiency in at least one of Go, .NET, Rust, Node.js, or Python.
- Experience building and maintaining APIs for external developers.
- Experience creating frontend user interfaces or architecting large single-page applications with React.
- Bachelor's or Master's degree in Computer Science, or equivalent practical experience.
- Strong communication skills with the ability to lead technical discussions during design and code review.
- Experience working in financial services or payments, including Visa/MC, US ACH and wires, CA Interac, or cross-border payments.
- Fluency in English.
Nice-to-haves
- Familiarity with Google Cloud Platform, AWS, Kubernetes, Docker, Cloudflare, Terraform, Redis, Postgres, Git, or GitLab/GitHub.
- Experience with blockchain or distributed ledger technologies such as Ethereum, Ripple, Stellar, or Solana.
- Enthusiasm for working on a small, growing team with significant autonomy.
- Track record of building new frameworks when existing open-source solutions are insufficient.
Benefits
- Fully remote work environment.



