Senior Software Engineer – Full-Stack

Jobtailor; Redwood City (CA); On-site; USD 160,000 - 210,000; Full time

Job summary

Jobtailor is seeking a senior software engineer to own production systems spanning Unity/C# client and robust backend services. You will deliver end-to-end features for real-time multiplayer experiences, optimize performance, and drive reliability in a regulated real-money gaming context.

You will collaborate on fairness and anti-cheat initiatives, ship low-latency architectures, and contribute to testing, observability, and incident response.

Qualifications

• 5+ years building and shipping production software; senior-level ownership of non-trivial systems.
• Real full-stack range: strong in a client stack and in backend services (you don't need both to be Unity/C#, but you must be able to go deep on the client and the server).
• Hands-on with C# and/or Unity, or a track record that makes picking them up fast credible (strong C++/game-client, graphics, or real-time systems background).
• Experience with real-time / low-latency or high-concurrency systems (multiplayer netcode, streaming, matchmaking, trading, or similar).
• Comfort operating what you build: testing, observability, incident response.

Responsibilities

• Ship end-to-end features spanning the Unity/C# client and backend game services — from table UX and mini-games to the APIs and real-time state behind them.
• Improve client performance and stability for multi-tabling on desktop and mobile (memory, frame budget, thermals, reconnect/resync).
• Design and evolve real-time, low-latency services for gameplay: table state, matchmaking, tournament flows, wallet/ledger, and event streaming.
• Partner on fairness, integrity, and anti-cheat — RNG correctness, hand-history accuracy, and the analytics pipeline that watches for anomalies.
• Build for a regulated, real-money context: work cleanly alongside payments, KYC, and geo-compliance systems without letting that complexity leak into gameplay.
• Raise the engineering bar: reviews, testing, observability, and on-call for the surfaces you own.

Skills

Unity/C# Development

Real-Time Systems

Full-Stack Engineering

Incident Response

Performance Optimization

Tools

Game Engines

Analytics Pipeline

KYC Systems

Geo-Compliance Systems

Job description

• Ship end-to-end features spanning the Unity/C# client and backend game services — from table UX and mini-games to the APIs and real-time state behind them.
• Improve client performance and stability for multi-tabling on desktop and mobile (memory, frame budget, thermals, reconnect/resync).
• Design and evolve real-time, low-latency services for gameplay: table state, matchmaking, tournament flows, wallet/ledger, and event streaming.
• Partner on fairness, integrity, and anti-cheat — RNG correctness, hand-history accuracy, and the analytics pipeline that watches for anomalies.
• Build for a regulated, real-money context: work cleanly alongside payments, KYC, and geo-compliance systems without letting that complexity leak into gameplay.
• Raise the engineering bar: reviews, testing, observability, and on-call for the surfaces you own.

Requirements

• 5+ years building and shipping production software; senior-level ownership of non-trivial systems.
• Real full-stack range: strong in a client stack and in backend services (you don't need both to be Unity/C#, but you must be able to go deep on the client and the server).
• Hands-on with C# and/or Unity, or a track record that makes picking them up fast credible (strong C++/game-client, graphics, or real-time systems background).
• Experience with real-time / low-latency or high-concurrency systems (multiplayer netcode, streaming, matchmaking, trading, or similar).
• Comfort operating what you build: testing, observability, incident response.

Core Competencies

Demonstrates expertise in building and shipping production software with a focus on Unity/C# and backend services, ensuring performance and stability in real-time, low-latency gaming environments. Proficient in collaborating on fairness and compliance within regulated, real-money contexts while maintaining high engineering standards.

Highest-signal resume keywords

• Unity/C# Development
• Real-Time Systems
• Full-Stack Engineering
• Incident Response
• Performance Optimization

ATS Optimization Keywords

Hard Skills

• C#
• Unity
• Real-Time Systems
• Multiplayer Netcode
• Game Development
• Backend Services
• Performance Testing
• Observability
• API Development
• Low-Latency Services

Soft Skills

• Collaboration
• Problem-Solving
• Analytical Thinking

Industry Keywords

• Real-Money Gaming
• Fairness
• Integrity
• Anti-Cheat
• Matchmaking
• Tournament Flows

Tools & Technologies

• Game Engines
• Analytics Pipeline
• KYC Systems
• Geo-Compliance Systems