Senior Game Engine Developer

🏢 Summary: 6-month hybrid contract for a Unity Software Engineer to drive high-priority architectural rework and codebase improvements to scale a live game. The role focuses on refactoring, evolving technical architecture, and delivering scalable solutions in close collaboration with architecture and tech leads. Work centers on enabling long-term product capabilities through robust engineering practices. 🗂️ Requirements: Experience with code refactoring, Experience with systems development, Deep knowledge of C#, Experience with Unity, Understanding of TDD, Understanding of BDD, Knowledge of SOLID principles, Degree in Engineering or related technical field 📃 Skills: Unity, C#, TDD, BDD, SOLID, Refactoring, Architecture, Systems 🏢 Description: As a Software Engineer, knowledgeable about Unity, the responsibilities include development within our re-architecture initiatives and improvements of the code base in the game, to enable scaling the game for years to come. The initiatives within architecture are high priority and needed to unlock new product capability within the product strategy. Start: ASAP Length: 6 months with possible extension Work Setup: Hybrid in Stocholm, should be able to work onsite a couple of days per week As an engineer, the responsibilities include: Incrementally build and deliver technical architecture improvements to the game Close collaboration with our Game Architect and Tech Leads to explore, investigate and deliver technical improvements and solutions. As a proactive team member, be an active contributor to evolving and improving the team’s ways of working and planning. Requirements: Experience with code refactoring and systems development Degree in Engineering or equivalent technical field (4 years) Deep knowledge in C# Not afraid of facing (and embracing) the unknown and working with exploratory tasks. Understand and agree with Test Driven Development and Behavior Driven Development Have a software engineering mindset, and a grasp of software engineering principles such as SOLID Team player with strong self-leadership, can-do attitude and business sense Experience with Unity (C#). Nice to have: Experience with games that have in-app purchases and/or games that have millions of players

🏢 Summary: Senior Software Engineer role focused on developing and maintaining a multi-platform game client SDK supporting account lifecycle, authentication, and authorization flows for online games. The position involves building core SDK features in C++23 and Typescript/React, monitoring production systems, improving security, and collaborating with international engineering teams. The role supports PC, console, and mobile platforms used by millions of players. 🗂️ Requirements: 5+ years experience with C++17/23 and STL, 2+ years experience with Typescript and React, Knowledge of TCP/IP, HTTP, REST APIs, and client-server architectures, Experience with C++ debugging and profiling tools, Hands-on experience working with production systems, Bachelor’s degree in Computer Science, Software Engineering, or related field, Effective communication and teamwork skills, Fluency in English, Ability to collaborate across multiple time zones 📃 Skills: C++, STL, Typescript, React, TCP/IP, HTTP, REST, Datadog, Sentry, Vitest, Noesis, PS5, Xbox, iOS, Android, Unreal, CMake 🏢 Description: Our client is one of the largest game studios known for their very successful online MOBA and FPS franchises. As a Senior Software Engineer on the SDK Account Experiences team, you will have a chance to influence how the game client handles game accounts' lifecycle and interact with the backend services supporting the core authentication and authorization flows. In this role you will be able to influence how millions of players get into their favourite games. Game client SDK is a multi-platform (PC, PS5, Xbox, iOS, Android) toolkit that provides core online capabilities for the games developed by our client. The SDK is built in C++ 23 and Typescript. Your team will comprise experienced engineers from Poland working closely with other EU and US West Coast engineering teams. Although it's not a daily requirement, due to working across multiple time zones, flexibility to attend later meetings is an important factor for success in this role. You will have a chance to work with industry veterans on the infrastructure vital for the day-to-day operations of a massive online gaming platform. Each team member is expected to proactively propose tools, designs, and implementation strategies. Responsibilities Building core, multiplatform SDK features in C++23 Working on the SDK UI features built in Typescript , React and Noesis Engine Monitoring system telemetry and setting up alerting using Datadog Using Sentry and Datadog for triaging of production issues Development of integration and E2E tests in Vitest framework Investigations of security vulnerabilities and working with InfoSec team to minimise platform abuse Implementation of core features under the guidance of Technical Lead/Engineering Lead Conduct code reviews for members in the team Collaborate with different teams across the company to incorporate customer feedback and provide elegant solutions Prepare design docs, implementation strategy and choose appropriate tools Hands-on work with live production systems Required qualifications 5+ years of experience in C++ 17/23 and STL library 2+ years of experience in Typescript and React Knowledge of TCP/IP, HTTP, REST APIs, client-server architectures Knowledge of tools used for C++ debugging and profiling Hands on experience working with production systems Bachelor's or higher degree in Computer Science, Software Engineering, or a related field Effective communication and teamwork skills Fluency in English, it’s our daily business language Nice to have Experience in the gaming industry , particularly with online multiplayer games Knowledge of game console SDKs - PS5, XBox Mobile development experience for iOS and Android Experience with Unreal Engine 5 Experience with CMake build system Experience with observability and monitoring tools, preferably Datadog and Sentry Knowledge of Vitest framework

🏢 Summary: Consulting opportunity for a UI Developer to build and optimize high‑performance, dynamic user interfaces for a major AAA game title. The role focuses on developing React and TypeScript-based UI systems integrated with a C++ game engine and middleware. You will collaborate with cross‑functional teams to deliver responsive, scalable, real‑time in‑game UI experiences. 🗂️ Requirements: Strong proficiency in React, Professional experience with TypeScript, Solid knowledge of C++, Experience with Coherent UI or Coherent GT, Experience building real-time, highly dynamic UIs, Ability to integrate UI with game engines, Strong debugging and profiling skills, Experience optimizing performance and memory usage 📃 Skills: React, TypeScript, C++, Coherent, CoherentGT, JavaScript, UI, UX, Profiling, Debugging 🏢 Description: About the Role We are seeking a highly skilled UI Developer to join a leading AAA game studio as a consultant. In this role, you will work closely with designers, gameplay teams, and engine developers to build high‑performance, visually engaging, and highly dynamic user interfaces for a major game title. You’ll be part of a multidisciplinary team where you will help shape the UI/UX experience for millions of players worldwide. Location : Stockholm office 3 days/week. Key Responsibilities • Develop, implement, and maintain complex and highly dynamic UIs for a AAA game project. • Work with React and TypeScript to build robust UI features and tools. • Integrate UI systems with the game engine using C++ and middleware solutions such as Coherent (Coherent GT / Coherent Labs). • Collaborate with UI/UX designers to translate wireframes, animations, and interaction flows into responsive and scalable in‑game interfaces. • Optimize UI performance, memory usage, and responsiveness in a real‑time game environment. • Troubleshoot, debug, and profile UI components across multiple platforms. • Contribute to establishing best practices, tooling improvements, and workflow optimizations for UI development. • Communicate effectively with cross‑functional teams in a fast‑paced development environment. Required Skills & Experience • Strong proficiency in React for building complex user interfaces. • Professional experience with TypeScript in production‑level applications. • Solid understanding of C++, especially in the context of integration with game engines. • Hands‑on experience with Coherent UI / Coherent GT or similar game‑UI middleware. • Demonstrated experience working with highly dynamic, real‑time UIs (e.g., in games, simulations, or interactive applications). • Ability to work with designers, animators, and gameplay programmers to achieve high‑quality UI results. • Strong debugging, profiling, and optimization skills.

🏢 Summary: Frontend Engineer role focused on leading and evolving the architecture of digital draw game clients. Responsible for building and optimizing scalable, event-driven frontend systems using a modern React and TypeScript stack, enabling real-time gameplay and backend communication. The position includes ownership of client frameworks, build pipelines, and technical alignment with external studios. 🗂️ Requirements: 5+ years developing complex frontend applications, Strong experience with React, Strong experience with TypeScript, Hands-on experience with HTML5 game technologies, Experience building interactive web applications, Strong knowledge of state-driven systems, Strong knowledge of event-driven systems, Deep understanding of asynchronous programming, Proficiency with Vite, Experience with CSS frameworks, Experience with automated testing environments, Experience with Git and version control workflows 📃 Skills: React, TypeScript, Vite, HTML5, Three.js, PlayCanvas, JavaScript, Tailwind, CSS, Git, Testing, Asynchronous 🏢 Description: Frontend developer We are looking for an experienced Engineer to take technical ownership of the frontend architecture powering our digital draw games. In this role, you will design and maintain the core client frameworks that enable the integration of various game categories with our platform, defining how games handle lifecycles, player interactions, and real-time backend communication. Responsibilities: Architectural Leadership: Lead the evolution of frontend frameworks and reusable client foundations to support diverse game paradigms. Core Development: Build and optimize frontend systems using a modern stack including React, TypeScript, and Vite . Communication Patterns: Implement robust, event-driven client-server interactions for both on-demand and real-time gameplay. Technical Translation: Turn complex gameplay flows, UX layouts, and production specs into scalable, high-performance implementations. External Partnership: Act as a technical guide for external development studios, ensuring their games align with our architectural standards. Standards & Quality: Enforce coding standards, manage build pipelines, and identify technical bottlenecks or risks early in the lifecycle. Requirements: 5+ years of experience developing complex frontend applications with a focus on React and TypeScript . Hands-on experience with HTML5 game technologies , such as Three.js or PlayCanvas , and building interactive web applications. Strong background in state-driven and event-driven systems , including a deep understanding of asynchronous programming. Proficiency with modern tooling, including Vite, CSS frameworks (like Tailwind) , and automated testing environments. Collaboration Skills: Proven ability to work alongside designers and backend teams to translate product concepts into technical reality. Workflow Expertise: Solid experience with Git , version control practices, and managing collaborative development workflows.

🏢 Summary: Opportunity for a Graphics Driver Software Engineer to develop and optimise low-level graphics drivers for current and next-generation GPU architectures. The role focuses on performance, stability, and efficient hardware utilisation across the full driver lifecycle. You will collaborate with hardware teams and partners to deliver and enhance modern graphics solutions for next-generation products. 🗂️ Requirements: Strong programming skills in C, Experience in low-level/system programming, Solid understanding of OpenGL, OpenGL ES, or Vulkan, Knowledge of GPU architecture, Understanding of CPU, memory hierarchy, cache, MMU, Experience debugging complex software and performance issues, Ability to work in cross-functional engineering teams 📃 Skills: C, OpenGL, Vulkan, OpenGLES, GPU, CPU, MMU, Debugging, Agile, Scrum 🏢 Description: Graphics Developer About the Role We are looking for a Graphics Driver Software Engineer to develop and optimise low-level graphics drivers for current and next-generation GPU architectures. You will work on core graphics stack components, ensuring high performance, stability, and efficient hardware utilisation. The role involves close collaboration with hardware engineers and external partners to deliver and improve modern graphics solutions used in next-generation products. Responsibilities Develop and maintain low-level graphics drivers (OpenGL / Vulkan) for GPU architectures. Analyse and optimise hardware and software performance to maximise graphics processing efficiency. Work on full driver lifecycle activities including design, implementation, testing, and optimisation. Collaborate with hardware teams to enable and enhance GPU and graphics API capabilities. Support customers and partners in integrating and launching new graphics-enabled products. Participate in defining and evolving graphics APIs and driver behaviour with industry stakeholders. Investigate and resolve complex performance, stability, and system-level issues. Requirements Strong programming skills in C, with experience in low-level/system programming. Solid understanding of modern graphics APIs such as OpenGL, OpenGL ES, or Vulkan. Knowledge of GPU architecture and computer systems (CPU, memory hierarchy, cache, MMU). Experience with debugging and solving complex software and performance issues. Good communication skills and ability to work in cross-functional engineering teams. Positive, collaborative, and problem-solving mindset. Nice to Have Experience with GPU driver development. Familiarity with vector mathematics used in graphics computations. Experience working in Agile/Scrum development environments. Experience writing production-grade C code following strict coding standards.

🏢 Summary: Senior Game Programmer role focused on building and enhancing games, shared systems, and internal tools on the Roblox platform using Lua. The position involves defining APIs, developing core technical solutions, and improving development processes within an agile environment. It is a full-time, 6-month contract role with remote or hybrid options. 🗂️ Requirements: 5+ years professional experience in game or software development, Experience with Lua, C, C#, or similar languages, Hands-on experience with Roblox platform, Strong knowledge of code architecture and design patterns, Experience working in Scrum or agile methodologies, Experience defining APIs and core systems, Mentoring or coaching experience, Higher education in game development, software engineering, or related field, Fluent English, Located in Sweden or Portugal 📃 Skills: Lua, C, C#, Roblox, RobloxStudio, Scrum, Agile, APIs, Architecture, DesignPatterns, GameDevelopment, SoftwareDevelopment, Discord, Slack 🏢 Description: About the Position As a Senior Game Programmer , you will play a key role in developing and enhancing games, shared solutions, and internal tools for systems built on the Roblox platform . You will be central to defining APIs and leading the development of core tools and systems that support the organization’s long-term technical needs. All tools and systems are developed using Lua within the Roblox Studio engine . In this role, you will continuously improve development processes, share technical insights across teams, and actively mentor and elevate fellow developers. Working Environment The culture is fun, playful, fearless, and forward-thinking . The team strives to create exceptional digital experiences while enjoying the process, constantly learning, iterating, and pushing forward. You will have significant ownership over your work and be empowered to test ideas, experiment, and grow within a supportive and collaborative environment. Practical Details Start date: As soon as possible Contract: 6 month Location: 100% remote, with the option of hybrid or in-office work from Lisbon Communication tools: Discord and Slack Work time: Full-time, aligned with Stockholm working hours Company language: English Required Qualifications Experience programming in Lua, C, C# , or similar languages Experience in Roblox platform Approximately 5+ years of professional experience in game development and/or software development Strong understanding of code architecture and design patterns Extensive experience working with Scrum or agile methodologies Solid understanding of player experience and game design considerations Experience contributing to business-oriented technical decisions Proven experience mentoring or coaching developers Strong communication and collaboration skills Completed higher vocational education in game development or higher education in software engineering or a related field Fluent English (spoken and written) Located in Sweden or Portugal A genuine passion for games

🏢 Summary: Senior Game Programmer role focused on developing and enhancing games, shared systems, and internal tools on the Roblox platform using Lua. The position involves defining APIs, building core technical solutions, and improving development processes while mentoring other developers. This is a full-time, remote-friendly 6-month contract with strong ownership over technical direction. 🗂️ Requirements: 5+ years professional experience in game development or software development, Experience programming in Lua, C, C# or similar languages, Hands-on experience with Roblox platform, Strong knowledge of code architecture and design patterns, Experience working with Scrum or agile methodologies, Experience mentoring or coaching developers, Higher education in game development, software engineering or related field, Fluent English, Located in Sweden or Portugal 📃 Skills: Lua, C, C#, Roblox, RobloxStudio, Scrum, Agile, APIs, Architecture, DesignPatterns, Discord, Slack 🏢 Description: About the Position As a Senior Game Programmer , you will play a key role in developing and enhancing games, shared solutions, and internal tools for systems built on the Roblox platform . You will be central to defining APIs and leading the development of core tools and systems that support the organization’s long-term technical needs. All tools and systems are developed using Lua within the Roblox Studio engine . In this role, you will continuously improve development processes, share technical insights across teams, and actively mentor and elevate fellow developers. Working Environment The culture is fun, playful, fearless, and forward-thinking . The team strives to create exceptional digital experiences while enjoying the process, constantly learning, iterating, and pushing forward. You will have significant ownership over your work and be empowered to test ideas, experiment, and grow within a supportive and collaborative environment. Practical Details Start date: As soon as possible Contract: 6 month Location: 100% remote, with the option of hybrid or in-office work from Lisbon Communication tools: Discord and Slack Work time: Full-time, aligned with Stockholm working hours Company language: English Required Qualifications Experience programming in Lua, C, C# , or similar languages Experience in Roblox platform Approximately 5+ years of professional experience in game development and/or software development Strong understanding of code architecture and design patterns Extensive experience working with Scrum or agile methodologies Solid understanding of player experience and game design considerations Experience contributing to business-oriented technical decisions Proven experience mentoring or coaching developers Strong communication and collaboration skills Completed higher vocational education in game development or higher education in software engineering or a related field Fluent English (spoken and written) Located in Sweden or Portugal A genuine passion for games

🏢 Summary: Senior Frontend Software Engineer role focused on building and maintaining complex web applications that power competitive tournament systems and public-facing experiences. The position involves end-to-end ownership of frontend features, including graph-based workflows, account management, and tournament operations. You will collaborate cross-functionally to deliver high-quality, scalable, and performant UI solutions integrated with backend services. 🗂️ Requirements: 5+ years frontend development experience, 4+ years experience with React, 4+ years experience with TypeScript, Bachelor's degree in Computer Science or related field, Senior-level experience building production frontend applications, Hands-on experience with GraphQL, Hands-on experience with Next.js including SSR and CSR, Experience integrating frontend with backend services, Understanding of modern frontend architecture, Knowledge of state management patterns, Experience with component-based design, Understanding of accessibility standards (WCAG), Ability to work in distributed teams across time zones 📃 Skills: React, TypeScript, JavaScript, GraphQL, Next.js, SSR, CSR, REST, Spring, HTML, CSS, WCAG 🏢 Description: About the role: Our client is one of the largest game studios known for its very successful online MOBA and FPS franchises. You will be part of a team that builds the systems and tools that power competitive play - from internal operator tooling used to create and manage tournaments, to player-facing web experiences that support competition at scale. We’re looking for a Senior Frontend Software Engineer to help us design and build complex frontend applications that support tournament creation, account management, and competition workflows. This role will work across internal operator tools as well as contribute to our public-facing experiences. This is a hands-on senior role where you’ll be expected to take ownership of features end-to-end, collaborate closely with product and backend partners, and deliver high-quality, maintainable frontend code. You will work closely with the engineering team in Los Angeles and other locations in the US West Coast. Due to working across multiple time zones, flexibility to attend later meetings on a daily basis is an important factor for success in this role (up to 9-10PM CEST). Each team member is expected to proactively propose tools, designs, and implementation strategies. Responsibilities: Design, build, and maintain frontend applications that support tournament setup, configuration, and operations. Work on complex UI workflows for creating and managing graph-based tournament structures. Contribute to public-facing web experiences with a focus on performance, usability, and polish. Collaborate closely with backend engineers, product managers, and designers to translate requirements into robust UI solutions. Integrate frontend applications with backend services, including GraphQL APIs and Java Spring REST APIs. Participate fully in team rituals, including 2-week sprints, planning, refinement, and retrospectives. Take clear ownership of your work - asking questions early, surfacing risks, and caring deeply about the quality of the end results Required qualifications: 5+ years of experience with Frontend Technologies 4+ years of experience with React and Typescript Bachelor's or higher degree in Computer Science , Software Engineering, or a related field Senior-level experience building production frontend applications. Hands-on experience with GraphQL and Next.js , including both SSR and CSR patterns. Experience integrating frontend applications with backend services (experience consuming Java Spring REST APIs is a plus). Solid understanding of modern frontend architecture, state management, and component design. Comfortable working independently in a remote environment while staying engaged and communicative. Understanding of accessibility standards and guidelines (e.g. WCAG) Nice to have: Working with PaaS Vendors like Netlify Hands-on experience working with Public Cloud, preferably AWS (Lambda/Serverless). Familiarity with complex data visualization or workflow-heavy UIs. Experience working on consumer-facing web products at scale. Familiarity with trading card games (TCGs) and tournament formats (e.g., Swiss rounds, decklists, brackets), or a strong interest in competitive gaming, esports. Familiarity with testing frameworks (e.g. JEST, RTL. Playwright) Experience with observability and monitoring tools, preferably Datadog

🏢 Summary: Part-time Junior Unreal Designer role focused on designing and implementing gameplay systems in Unreal Engine using Blueprints and/or C++. The position involves developing gameplay mechanics, UI features, and scripts while collaborating with the design team. It is suited for early-career candidates or students seeking hands-on experience in game development. 🗂️ Requirements: Good knowledge of Blueprints and/or C++, Experience with Unreal Engine, Understanding of game or application production process, Understanding of REST API protocols 📃 Skills: Unreal, Blueprints, C++, REST, Omniverse, UI, Gameplay 🏢 Description: Who are we looking for? We are looking for a Junior Unreal Designer, available for at least part-time work, to join our team. If you are at the beginning of your professional career or currently studying, this job is for you. Responsibilities: Designing, developing, and implementing gameplay in Unreal Engine. Implementing gameplay mechanics, UI features, and logic in Blueprints and/or C++. Creating and modifying scripts and user interfaces. Collaborating with the design team. Analyzing, optimizing, and refreshing game mechanics. Requirements: Good knowledge of Blueprints and/or C++. Experience working with Unreal Engine. Understanding of the game or application production process. Understanding of protocols such as REST API. Ability to work in a team, strong communication skills, and willingness to learn. Analytical thinking skills and the ability to solve problems independently. Knowledge of NVIDIA Omniverse would be an asset. We offer: Subsidized sports card. Opportunity to learn and gain experience. Prospects of working on interesting and diverse projects. Participation in industry events. Company social events.

🏢 Summary: Engineering role focused on evolving and automating large-scale Version Control System (VCS) infrastructure to support thousands of engineers and high build volumes. The position involves backend development, cloud deployments, and operational ownership to deliver a scalable, reliable, and AI-enabled developer experience. Remote role based in Sweden with a fixed-term contract. 🗂️ Requirements: 6+ years building large-scale systems, Strong Linux system knowledge, Strong Java experience, Backend development experience, Experience with GCP or AWS, Experience with Kubernetes, Experience with GitHub administration or GitLab, Expert-level Git knowledge, Understanding of HTTP and networking fundamentals, Experience with CI and CD practices, Experience with testing best practices, AI tooling experience, Eligibility to work remotely from Sweden 📃 Skills: Linux, Java, Backend, GCP, AWS, Kubernetes, GitHub, GitLab, Git, HTTP, Networking, CI, CD, Testing, AI, Data 🏢 Description: We are seeking a collaborative and curious Engineer to help drive and develop our VCS infrastructure forward. Our Version Control System (VCS) is the heartbeat of the developer experience. Our massive growth serving 1 Billion customers has led to us closing in on operational limits and we hence need to improve our stack and automate certain workflows in order to continue providing our engineering teams with flawless builds, integrated insights, fast local iteration time and evolve our repo structure for speed and safety. This role will be part of a team collaboratively creating and owning our VCS infrastructure which aims to provide our developers with a streamlined, simple to use and safe build experience at scale.. The role is located in the Platform Developer Experience (PDX) tribe within the Platform Mission. The PDX Studio oversees and owns the infrastructure that cuts across all engineering disciplines. What you'll do Execute on the clients future VCS infrastructure strategy that is able to serve 3000+ engineers doing 100’s of thousands of builds daily and beyond Support with Operational tasks keeping our systems healthy and uptodate Develop backend systems to enable automate and enable the engineers to develop software more efficiently Drive the automation and improvements of our chosen VCS across our current technical stacks. Collaborate with Infrastructure teams across the company to discover what a best in class VCS infrastructure means. Who you are You are an experienced engineering familiar with Linux and Networking fundamentals You are an experienced Software Engineer with Java You have experience deploying to and implementing solutions in GCP or AWS. You believe in iteration and know that finding the right solution is more important than the first. You like to focus on standardization and automation; always looking for ways to improve the developer experience You have 6+ years of experience in building and implementing large-scale systems across various projects and teams You have familiarity with and enthusiasm for software engineering best practices such as testing, continuous integration, and continuous delivery Skills Linux system experience Java Backend development experience AI experience is a must - we will be working on AI tooling as well HTTP / networking Google Cloud (preferred) / AWS Kubernetes Github (Administration / Operations) Gitlab would be advantageous (if they don’t have Github) Git expert Data experience - would be helpful Start:  2026-05-05 End Date:   2026-12-31 Workplace: Remote from Sweden. Candidates appyling from outside of Sweden will not be reviewed.