C# Software Engineers (Mid, Senior & Staff), Fully Remote, US East Coast hours – FinTech
Sponsorship is NOT available – you must be based in the US with full rights to work
Salary Ranges (base salaries – benefits and bonus on top- some flex where required):
Mid-Level: between $120,000 and $140,000 + Equity
Senior Level: between $145,000 and $175,000 + Equity
Staff Level: between $175,000 and $220,000 + Equity
Overview:
My client is a high-growth fintech building a next-generation accounting platform for private markets. It helps fund administrators and asset managers automate complexity, build trust and scale faster. Getting those numbers right at scale is the engineering challenge their team takes on every day.
They are growing growing the engineering team and have several openings at mid-level, senior and staff level. These are full-stack roles that lean backend: roughly 75% server-side C# / .NET, and 25% frontend across a WPF desktop app and a React web app.
Responsibilities:
- Taking on real problems rather than ready-made solutions, and coming back with a plan the team can get behind
- Designing how systems fit together, and planning migrations that are safe to run on live client data
- Building in the checks that prove your design works
- Bringing technical options to product early, and explaining what they mean for dates, cost and clients
- Helping the engineers around you grow
- Using AI safely where it matters most, including calculations and migrations
Scope and leadership grow with the level. Staff engineers set direction across components and teams.
Required Skills:
- Experience building production software where correctness, scale or reliability really matter
- Depth in a modern, typed server-side stack, with C# / .NET strongly preferred
- Experience with data models, versioned APIs and migrations on live data
- Clear communication with engineers, product and client-facing teams
- For senior and staff roles: a track record of planning work across components and teams, and of raising the level of the engineers around you
Desired Skills:
- Fund administration, private markets or partnership accounting
- Kubernetes or other cloud-native operations
- Modernising a live platform without stopping it
- WPF or React on the frontend
- Building guardrails for AI-assisted development, or agentic workflows that real users rely on
- Time at an early-stage or high-growth company
Why join?
- Hard problems, real influence and room to lead, with a clear path toward Staff
- Fully remote, with team on sites up to four times a year
- Medical, dental and vision coverage
- 401(k) with employer contributions
- Paid time off, plus generous parental and family leave
- A light on-call rotation