Negotiable
Fixed-Term
Hybrid
Sheffield, England, United Kingdom
Summary: The role of Senior Unity Developer/Unity Developer focuses on developing and optimizing multiplayer game experiences using Unity, with a strong emphasis on real-time synchronization and networking. The position requires leading architecture and mentoring junior developers while collaborating with various teams to deliver high-quality networked applications. Candidates should have extensive experience in Unity development and multiplayer systems, with a preference for those familiar with frameworks like Photon and Unity Netcode. This is a hybrid position based in Sheffield, England, on a fixed-term contract basis.
Key Responsibilities:
- Architect and implement multiplayer gameplay systems using Photon, Unity Netcode, or similar frameworks.
- Design scalable client–server interactions, synchronization logic, and latency management strategies.
- Mentor and guide junior and mid-level developers in multiplayer best practices, performance optimization, and clean architecture.
- Collaborate with backend engineers to define APIs, matchmaking logic, and cloud-hosted services.
- Own the network layer performance, ensuring minimal lag, efficient state replication, and smooth gameplay experience.
- Work closely with designers, QA, and product teams to deliver robust and maintainable multiplayer features.
- Evaluate new Unity networking stacks, SDKs, and architectural approaches for real-time scalability.
Key Skills:
- 8+ years of hands-on Unity development experience (C#).
- 3+ years of direct experience developing and deploying multiplayer experiences (Photon, Mirror, Unity Netcode, or custom networking).
- Deep understanding of client–server architecture and authoritative gameplay design.
- Network synchronization, lag compensation, and session management.
- Matchmaking, lobby systems, and voice/data streaming.
- Strong understanding of object pooling, performance profiling, memory management, and optimization for VR/AR or mobile.
- Experience with CI/CD pipelines, version control (Git), and project structuring for large-scale Unity projects.
- Excellent problem-solving, leadership, and communication skills.
Salary (Rate): undetermined
City: Sheffield
Country: United Kingdom
Working Arrangements: hybrid
IR35 Status: fixed-term
Seniority Level: Senior
Industry: IT
Position: Senior Unity Developer/ Unity Developer (Multiplayer / Game Networking)
Location: Sheffield, England, United Kingdom (Hybrid)
Employment Type: Full-time (6 months fixed term contract)
Website: Immersive Learning Solutions - AR, VR, MR, XR Training
Senior Unity Developer (8+ Years Experience)
About the Role
We are looking for an experienced Senior Unity Developer with a deep understanding of multiplayer systems and real-time synchronization to join our immersive technology team. You will lead the architecture, development, and optimization of high-quality, networked Unity experiences across platforms.
Key Responsibilities
- Architect and implement multiplayer gameplay systems using Photon , Unity Netcode , or similar frameworks.
- Design scalable client–server interactions , synchronization logic, and latency management strategies.
- Mentor and guide junior and mid-level developers in multiplayer best practices , performance optimization, and clean architecture.
- Collaborate with backend engineers to define APIs, matchmaking logic, and cloud-hosted services .
- Own the network layer performance , ensuring minimal lag, efficient state replication, and smooth gameplay experience.
- Work closely with designers, QA, and product teams to deliver robust and maintainable multiplayer features.
- Evaluate new Unity networking stacks , SDKs, and architectural approaches for real-time scalability.
Required Skills & Experience
- 8+ years of hands-on Unity development experience (C#).
- 3+ years of direct experience developing and deploying multiplayer experiences (Photon, Mirror, Unity Netcode, or custom networking).
- Deep understanding of: Client–server architecture and authoritative gameplay design.
- Network synchronization , lag compensation , and session management .
- Matchmaking, lobby systems, and voice/data streaming.
- Strong understanding of object pooling, performance profiling, memory management , and optimization for VR/AR or mobile .
- Experience with CI/CD pipelines , version control (Git) , and project structuring for large-scale Unity projects .
- Excellent problem-solving, leadership, and communication skills.
Nice to Have
- Experience with Dedicated Game Servers , PlayFab , AWS GameLift , or Relay services .
- Exposure to XR/VR environments or immersive training platforms.
- Familiarity with custom serialization and packet optimization techniques.
What We Offer
- Opportunity to lead multiplayer initiatives in cutting-edge immersive projects.
- Collaborative, innovation-driven culture.
- Competitive compensation and growth opportunities.
Unity Developer (Mid-Level, 3–8 Years Experience)
About the Role
We are seeking a Unity Developer with strong knowledge of multiplayer game development to contribute to the creation of real-time, interactive 3D experiences. The ideal candidate has practical experience using Photon , Unity Netcode , or other networking frameworks to bring connected gameplay to life.
Key Responsibilities
- Develop and maintain multiplayer features including player connections, lobby systems, and synchronized interactions.
- Integrate Photon (PUN / Fusion) or similar frameworks into Unity projects.
- Collaborate with designers and backend engineers to implement gameplay logic , matchmaking , and data sync .
- Optimize gameplay for network stability and performance across platforms.
- Debug and profile network traffic, latency issues , and state replication .
- Maintain clean, modular, and scalable C# codebases .
Required Skills & Experience
- 3–8 years of professional experience with Unity (C#).
- Strong understanding of multiplayer networking concepts : Room/lobby management, data serialization, and RPCs.
- State synchronization, authority models, and lag mitigation.
- Prior hands-on experience with Photon , Mirror , or Unity Netcode (MLAPI).
- Familiarity with Unity UI, animation, physics, and scene management .
- Experience with source control (Git) and team-based workflows .
Nice to Have
- Exposure to PlayFab , Relay Services , or dedicated server hosting .
- Experience building for VR/AR platforms .
- Interest in AI-assisted gameplay systems or procedural logic .
What We Offer
- Work on high-impact, networked Unity applications in the learning and gaming space.
- Collaborative team and opportunities to grow into senior / lead roles .
- Competitive salary and modern tech environment.