Job VC
Senior Software Engineer (.NET)
Technologies
Description
We’re looking for a Senior Backend Engineer to own the development of high-performance, data-dense trading and analytics experiences for a multi-tenant B2C SaaS platform in the prop futures space. You will collaborate on building and optimizing a high-performance, low-latency trading infrastructure that serves thousands of active traders.
Domain: FinTech / Proprietary Trading (US market).
Product: A cutting-edge platform connecting traders with funding opportunities.
Tech Vibe: High-load, low-latency, and data-intensive environment processing millions of events in real time.
Requirements:
5+ years of robust backend development using C# and the modern .NET
ecosystem or full‑stack development.
Strong expertise in .Net
; ability to design scalable backend services.
Strong hands-on experience with real-time data streams
(WebSockets, gRPC) and messaging brokers (Kafka or NATS).
Solid understanding of relational databases, especially
PostgreSQL
.
Practical experience with trading or good understanding with trading terminology
(tick, bid, ask, buy, sell).
Experience with payment systems and integrations (e.g., Worldpay or similar).
Understanding of Kubernetes deployments
for development/testing environments.
Strong testing discipline
including unit/integration coverage aligned with DoD.
Ability to perform basic development tasks using React and Next.js.
At least English Upper-Intermediate level and strong autonomous communication skills.
Responsibilities:
Lead backend feature development using .Net/C# for trading simulation workflows.
Design, document, and maintain API endpoints used by frontend applications.
Collaborate with frontend engineers to ensure consistent data structures and integration logic.
Implement scalable backend logic for trading, risk, and account‑related operations.
Support and occasionally implement minor UI features or bug fixes in React/Next.js.
Integrate third‑party services such as payment providers.
Write comprehensive automated tests for backend components.
Deploy and validate services in Kubernetes development environments.
Participate in technical design discussions and mentor team members.
Troubleshoot production and pre‑production issues to ensure platform stability.
What we offer:
Annual paid vacation of 18 working days.
Extra vacation days for long-lasting cooperation.
Annual paid sick leave of 10 days.
Maternity/Paternity leave.
The opportunity for sabbatical leave.
Marriage and Parenthood Package.
Compensation for sports activities or health insurance covering (up to 250$ per year) — after the trial period.
Career development plan.
English and Spanish classes.
Paying taxes and managing PE (Private Entrepreneur).
Technical equipment.
Internal Referral program.
Opportunity to take part in company volunteering activities.
Sombra is a “Friendly to Veterans” award-holder.
If you believe you are a suitable candidate for this position, please attach your updated resume using the provided link.
Our recruitment team will review your profile, and if it aligns with our current job openings, we will contact you shortly. If you don’t receive a reply from us within 5 business days, it means we have decided to move forward with other candidates.
Thank you for understanding!
Domain: FinTech / Proprietary Trading (US market).
Product: A cutting-edge platform connecting traders with funding opportunities.
Tech Vibe: High-load, low-latency, and data-intensive environment processing millions of events in real time.
Requirements:
5+ years of robust backend development using C# and the modern .NET
ecosystem or full‑stack development.
Strong expertise in .Net
; ability to design scalable backend services.
Strong hands-on experience with real-time data streams
(WebSockets, gRPC) and messaging brokers (Kafka or NATS).
Solid understanding of relational databases, especially
PostgreSQL
.
Practical experience with trading or good understanding with trading terminology
(tick, bid, ask, buy, sell).
Experience with payment systems and integrations (e.g., Worldpay or similar).
Understanding of Kubernetes deployments
for development/testing environments.
Strong testing discipline
including unit/integration coverage aligned with DoD.
Ability to perform basic development tasks using React and Next.js.
At least English Upper-Intermediate level and strong autonomous communication skills.
Responsibilities:
Lead backend feature development using .Net/C# for trading simulation workflows.
Design, document, and maintain API endpoints used by frontend applications.
Collaborate with frontend engineers to ensure consistent data structures and integration logic.
Implement scalable backend logic for trading, risk, and account‑related operations.
Support and occasionally implement minor UI features or bug fixes in React/Next.js.
Integrate third‑party services such as payment providers.
Write comprehensive automated tests for backend components.
Deploy and validate services in Kubernetes development environments.
Participate in technical design discussions and mentor team members.
Troubleshoot production and pre‑production issues to ensure platform stability.
What we offer:
Annual paid vacation of 18 working days.
Extra vacation days for long-lasting cooperation.
Annual paid sick leave of 10 days.
Maternity/Paternity leave.
The opportunity for sabbatical leave.
Marriage and Parenthood Package.
Compensation for sports activities or health insurance covering (up to 250$ per year) — after the trial period.
Career development plan.
English and Spanish classes.
Paying taxes and managing PE (Private Entrepreneur).
Technical equipment.
Internal Referral program.
Opportunity to take part in company volunteering activities.
Sombra is a “Friendly to Veterans” award-holder.
If you believe you are a suitable candidate for this position, please attach your updated resume using the provided link.
Our recruitment team will review your profile, and if it aligns with our current job openings, we will contact you shortly. If you don’t receive a reply from us within 5 business days, it means we have decided to move forward with other candidates.
Thank you for understanding!