CTO (Chief Technology Officer)

🏢 Summary: CTO role in a fast-growing AI startup focused on Unreal Engine tools, responsible for defining and executing the technical strategy across a UE5 plugin, AI/Python backend, and web stack. The position combines hands-on development with strategic leadership, scaling engineering teams, and aligning technology with business goals. It requires strong expertise in Unreal Engine, AI systems, and startup scaling. 🗂️ Requirements: 7+ years in technical leadership roles, Expertise in Unreal Engine, Strong experience with AI systems, Proficiency in Python environments, Proven record of leading engineering teams, Experience delivering complex production software, Strong system design and architecture skills, Experience scaling startups or engineering teams, Fluent English (C1/C2), Polish language proficiency 📃 Skills: UnrealEngine, UE5, Python, AI, SaaS, Web, Architecture, Infrastructure, Security, Testing 🏢 Description: About Ludus AI Ludus AI is already empowering over 26 000 Unreal Engine developers worldwide with advanced AI tools for C++, Blueprint, and 3D asset generation directly inside the engine. We’ve seen what’s possible when AI removes the friction from creation, and now we’re scaling our technology to make AI-driven development the new industry standard. We are an ambitious, fully funded startup building the future of game dev — and we want you to be a part of this. Check it out at https://ludusengine.com 🚀. Why this role exists We are looking for a CTO who will be a true co-driver of the company’s success. This is a high-trust leadership role for a technical visionary who understands the market, can scale a startup, and connects business outcomes with technology choices. You will bridge the gap between high-level strategy and hands-on execution, ensuring our team stays focused on the goals that move the needle. What you will do Technical Strategy: Own the technical roadmap and architecture across the entire product (UE5 plugin + Python backend/AI services + Web stack for user facing interfaces). Strategic Leadership: Co-lead the company with the CEO, translating business vision into executable milestones and measurable outcomes. Engineering Excellence: Set and enforce high engineering standards (quality, reviews, testing, release discipline) to ensure speed without sacrificing reliability. Team Scaling: Lead, mentor, and grow our engineering team; own the hiring and onboarding processes for future talent. Global Engagement: Represent Ludus AI in front of investors, enterprise clients, and global partners (gamedev and beyond). Risk Management: Mitigate technical debt and manage security, performance, and long-term maintainability. Culture Architect: Foster a healthy, ambitious, and transparent engineering culture. Hand-on development: When required, you are not afraid to get hands-on with a variety of different challenges in multiple coding languages. Requirements Expertise: 7+ years of experience in technical leadership, with mandatory expertise in Unreal Engine and a solid background in AI and Python environments. Leadership Track Record: Proven experience leading engineering teams and shipping complex production software. Architectural Vision: Strong system design skills across both product logic and scalable infrastructure. Hands-on Mindset: Willingness to "get into the trenches" when needed, especially in our lean, high-speed environment. Startup DNA: Experience in scaling teams and processes from early stage to growth. Business Orientation: Ability to make difficult trade-offs to ensure product-market fit and business wins. Communication: Exceptional English (C1/C2) is a must – you will work daily with global investors and industry giants. Język Polski jest wymagany. Nice to have Deep roots in the Unreal Engine ecosystem or game developer tools market. Experience with AI-enabled SaaS products. Experience scaling infrastructure for high-traffic global platforms. What we offer Real Ownership: Equity option (ESOP) available for the right partner. Direct Impact: Direct connection to the biggest names in the Game Dev industry and global enterprise partners. Stability: Fully funded startup with a proven product-market fit and global ambitions. Total Autonomy: One weekly sync, no micro-management, 100% remote (anywhere). Flexible Schedule: You are the master of your own time. Great Atmosphere: A small, tight-knit crew of passionate individuals who value changing the world while having a blast. How to apply? If you're ready to join our team, send your CV along with a few sentences about yourself and a link to your portfolio using the form below! ❗Important: As part of your application, please include description of how you use AI tools during your daily work, and models/frameworks you have used so far! We use AI as the foundation of our work. Applications without the information above might not be taken into consideration .

🏢 Summary: Python-focused backend role responsible for building scalable AI-driven services that integrate large language models with Unreal Engine. The position centers on developing reliable APIs, orchestrating AI pipelines, and ensuring high code quality in a fast-paced startup environment. It involves close collaboration with engine teams to deliver robust AI infrastructure used by game developers worldwide. 🗂️ Requirements: 5+ years professional Python experience, Strong knowledge of clean code principles (DRY, SOLID), Experience with regression, unit and integration testing, Experience building APIs and microservices, Experience with serverless architectures, Hands-on integration of LLMs or AI workflows into production systems, Experience refactoring and maintaining backend systems, Fluent English (min. B2), Polish language proficiency for communication 📃 Skills: Python, APIs, Microservices, Serverless, LLMs, Langchain, Agno, AWS, GCP, Docker, Unreal, Git, Testing 🏢 Description: About Ludus AI We provide the infrastructure for AI within Unreal Engine that extends beyond basic implementation. With 26 000+ users and partnerships with industry giants, Ludus AI is automating C++, Blueprints, and 3D asset generation. We’re looking for a Developer who wants to go under the hood of the multimodal AI system, not just use it in their everyday work. Why this role exists We need a Python-focused developer to act as the engine room of our AI services. You will be responsible for shipping reliable backend features and AI-adjacent systems that bridge the gap between large models and the Unreal Engine environment. This is a role for someone who values fast product iteration but refuses to compromise on code reliability. What you will do Scalable Backend: Develop and maintain high-performance Python services and APIs that power Ludus AI tools. AI Orchestration: Integrate and iterate on AI components, LLM pipelines, and system integrations. Code Quality: Write robust tests (unit/integration) and refactor existing logic to ensure long-term maintainability and performance. Fast Iteration: Collaborate closely with the engine team to solve technical hurdles and ship product improvements in a high-speed startup rhythm. Requirements Python Mastery: 5+ years of professional experience with Python. You know the language's strengths and its pitfalls. Quality Mindset: Deep respect for regression testing and clean code habits (DRY, SOLID). Modern Backend: Comfortable working with APIs, microservices, and serverless architectures. AI Integration: Hands-on experience integrating AI-assisted workflows or LLMs into existing codebases. Autonomy: Strong remote work organization and independence. Communication: Solid English (min. B2, C1 preferred) & znajomość języka polskiego pozwalająca na swobodną komunikację. Culture: A solid sense of humor (memes are our second language). Nice to have Pragmatic "ship-it" mindset with AI libraries (e.g., Langchain, Agno, or similar). Cloud & DevOps experience (AWS/GCP, Docker). Curiosity about Unreal Engine workflows or gamedev tooling. What we offer Real Impact: Your code will be used by thousands of gamedevs globally to shape the future of Unreal Engine development. Total Autonomy: One weekly sync, no micro-management, 100% remote (anywhere). Deep Tech Stack: Work on the intersection of AI and low-level Engine integration. Stability: Fully funded startup with a proven product-market fit and global ambitions. Flexible Schedule: You are the master of your own time. Great Atmosphere: A small, tight-knit crew of passionate individuals who value changing the world while having a blast. How to apply? If you're ready to join our team, send your CV along with a few sentences about yourself, a link to your portfolio and code samples (github link) using the form below! ❗Important: As part of your application, please include description of how you use AI tools during your daily work, and models/frameworks you have used so far! We use AI as the foundation of our work. Applications without the information above might not be taken into consideration

🏢 Summary: Role focused on developing and maintaining a native C++ plugin for Unreal Engine 5, deeply integrating AI-driven code and asset generation into the editor. The position centers on performance optimization, seamless UE5 integration, and building intuitive developer tools. It involves working at the engine level to enhance the overall developer experience for Unreal Engine creators. 🗂️ Requirements: 2–4 years of experience with Unreal Engine, Strong C++ programming skills, Knowledge of Unreal Engine basics, Experience with UE editor scripting, Understanding of memory management, Understanding of multithreading concepts, Ability to develop and maintain UE5 C++ plugins, English proficiency (B2/C1), Polish language proficiency 📃 Skills: C++, UnrealEngine, UE5, EditorScripting, Multithreading, MemoryManagement, Slate, UMG, Python, Docker, Web, AI, LLM 🏢 Description: About Ludus AI We don’t just use AI; we build the tools that bring it into the heart of Unreal Engine. With 26,000+ users and partnerships with industry giants, Ludus AI is automating C++, Blueprints, and 3D asset generation. We’re looking for a Developer who wants to go under the hood of the engine, not just use it to make games. Check it out at https://ludusengine.com 🚀. Why this role exists You will be the architect of our plugin's core. Your goal is to ensure that when a developer uses Ludus AI, the integration is seamless, performant, and feels like a native part of UE5. You’re not just shipping features; you’re building the "Developer Experience" for thousands of creators. What you will do Deep Engine Integration: Develop and maintain our native C++ plugin, ensuring stability across UE5.x versions. Workflow Innovation: Workflow Innovation: Translate complex AI capabilities (code/asset generation) into intuitive User Interface and Editor tools. Performance Engineering: Profile and optimize the plugin to ensure zero-lag impact on the user’s editor experience. Tech Advocacy: Collaborate on the roadmap—decide which new UE5 features (like PCG or Substrate) we should support next. Requirements UE Experience: 2–4 years of experience with Unreal Engine (C++ focused). Good knowledge of UE basics and editor scripting. C++ Knowledge: Write clean, maintainable code. Familiar with memory management and multi-threading concepts in UE. Tooling Mindset: Comfortable assisting in building tools for other developers and contributing to game logic. Teamwork & Autonomy: Comfortable working remotely and collaborating with the team under guidance. Communication: English (B2/C1) for documentation and team syncs. Komunikacja : Sprawnie komunikujesz się w języku polskim. Culture: A solid sense of humor (memes are our second language). Nice to have Experience with Slate/UMG for custom Editor UI. Knowledge of Python (for automation), Web technologies (for frontend) and Docker. Familiarity with AI/LLM integration patterns. What we offer Real Impact: Your code will be used by thousands of gamedevs globally. Total Autonomy: One weekly sync, no micro-management, 100% remote (anywhere). Deep Tech Stack: Work on the intersection of AI and low-level Engine code. Stability: Fully funded startup with a proven product-market fit. How to apply? If you're ready to join our team, send your CV along with a few sentences about yourself, a link to your portfolio and code samples (github link) using the form below! ❗Important: As part of your application, please include description of how you use AI tools during your daily work, and models/frameworks you have used so far! We use AI as the foundation of our work. Applications without the information above might not be taken into consideration .

🏢 Summary: Python-focused backend developer role building and maintaining scalable AI-driven services that integrate large language models with Unreal Engine. The position centers on developing reliable APIs, orchestrating AI pipelines, and ensuring high code quality in a fast-paced startup environment. The work bridges multimodal AI systems and engine-level integrations used by game developers worldwide. 🗂️ Requirements: 2–4 years professional experience with Python, Strong understanding of Python language and common use cases, Experience with APIs, microservices, and serverless architectures, Hands-on integration of LLMs or AI-assisted workflows into codebases, Experience with regression testing and clean code principles (DRY, SOLID), Ability to write unit and integration tests, Professional experience building backend services, English B2+ and Polish for effective communication 📃 Skills: Python, APIs, Microservices, Serverless, LLM, Langchain, Agno, AWS, GCP, Docker, RegressionTesting, UnitTesting, IntegrationTesting, SOLID, DRY 🏢 Description: About Ludus AI We provide the infrastructure for AI within Unreal Engine that extends beyond basic implementation. With 26 000+ users and partnerships with industry giants, Ludus AI is automating C++, Blueprints, and 3D asset generation. We’re looking for a Developer who wants to go under the hood of the multimodal AI system, not just use it in their everyday work. Why this role exists We need a Python-focused developer to act as the engine room of our AI services. You will be responsible for shipping reliable backend features and AI-adjacent systems that bridge the gap between large models and the Unreal Engine environment. This is a role for someone who values fast product iteration but refuses to compromise on code reliability. What you will do Scalable Backend: Develop and maintain high-performance Python services and APIs that power Ludus AI tools. AI Orchestration: Integrate and iterate on AI components, LLM pipelines, and system integrations. Code Quality: Write robust tests (unit/integration) and refactor existing logic to ensure long-term maintainability and performance. Fast Iteration: Collaborate closely with the engine team to solve technical hurdles and ship product improvements in a high-speed startup rhythm. Requirements Python Experience: 2–4 years of professional experience with Python. Good understanding of the language and its common use cases. Quality Mindset: Familiar with regression testing and clean code principles (DRY, SOLID). Modern Backend: Comfortable working with APIs, microservices, and serverless architectures. AI Integration: Hands-on experience integrating AI-assisted workflows or LLMs into existing codebases. Autonomy: Comfortable working remotely and coordinating with the team. Communication: Solid English (min. B2, C1 preferred) & znajomość języka polskiego pozwalająca na swobodną komunikację. Culture: A solid sense of humor (memes are our second language). Nice to have Pragmatic "ship-it" mindset with AI libraries (e.g., Langchain, Agno, or similar). Cloud & DevOps experience (AWS/GCP, Docker). Curiosity about Unreal Engine workflows or gamedev tooling. What we offer Real Impact: Your code will be used by thousands of gamedevs globally to shape the future of Unreal Engine development. Total Autonomy: One weekly sync, no micro-management, 100% remote (anywhere). Deep Tech Stack: Work on the intersection of AI and low-level Engine integration. Stability: Fully funded startup with a proven product-market fit and global ambitions. Flexible Schedule: You are the master of your own time. Great Atmosphere: A small, tight-knit crew of passionate individuals who value changing the world while having a blast. How to apply? If you're ready to join our team, send your CV along with a few sentences about yourself, a link to your portfolio and code samples (github link) using the form below! ❗Important: As part of your application, please include description of how you use AI tools during your daily work, and models/frameworks you have used so far! We use AI as the foundation of our work. Applications without the information above might not be taken into consideration

🏢 Summary: Development of a native Unreal Engine 5 C++ plugin integrating AI-driven code and 3D asset generation directly into the editor. The role focuses on deep engine integration, performance optimization, and building seamless developer tools within UE5. You will shape the core architecture and user experience for thousands of developers using the plugin. 🗂️ Requirements: 5+ years of Unreal Engine experience (C++ focused), Expert knowledge of Unreal Engine internals and Editor scripting, Strong C++ skills with clean, maintainable code practices, Experience with memory management and multithreading in Unreal Engine, Experience developing tools or plugins for Unreal Engine, Ability to work independently in a remote environment, English proficiency (B2/C1), Polish language proficiency 📃 Skills: C++, UnrealEngine, UE5, EditorScripting, Multithreading, MemoryManagement, Slate, UMG, Python, Docker, AI, LLM, PCG, Substrate 🏢 Description: About Ludus AI We don’t just use AI; we build the tools that bring it into the heart of Unreal Engine. With 26,000+ users and partnerships with industry giants, Ludus AI is automating C++, Blueprints, and 3D asset generation. We’re looking for a Developer who wants to go under the hood of the engine, not just use it to make games. Check it out at https://ludusengine.com 🚀. Why this role exists You will be the architect of our plugin's core. Your goal is to ensure that when a developer uses Ludus AI, the integration is seamless, performant, and feels like a native part of UE5. You’re not just shipping features; you’re building the "Developer Experience" for thousands of creators. What you will do Deep Engine Integration: Develop and maintain our native C++ plugin, ensuring stability across UE5.x versions. Workflow Innovation: Workflow Innovation: Translate complex AI capabilities (code/asset generation) into intuitive User Interface and Editor tools. Performance Engineering: Profile and optimize the plugin to ensure zero-lag impact on the user’s editor experience. Tech Advocacy: Collaborate on the roadmap—decide which new UE5 features (like PCG or Substrate) we should support next. Requirements UE Experience: 5+ years of experience with Unreal Engine (C++ focused). Expert knowledge of UE internals/Editor scripting. C++ Mastery: Clean, maintainable code is a must. You should be comfortable with memory management and multi-threading in UE. Tooling Mindset: You enjoy building tools for other developers, not just game logic. Independence: We work in a "high trust, high autonomy" remote model. Communication: English (B2/C1) for documentation and team syncs. Komunikacja : Sprawnie komunikujesz się w języku polskim. Culture: A solid sense of humor (memes are our second language). Nice to have Experience with Slate/UMG for custom Editor UI. Knowledge of Python (for automation), Web technologies (for frontend) and Docker. Familiarity with AI/LLM integration patterns. What we offer Real Impact: Your code will be used by thousands of gamedevs globally. Total Autonomy: One weekly sync, no micro-management, 100% remote (anywhere). Deep Tech Stack: Work on the intersection of AI and low-level Engine code. Stability: Fully funded startup with a proven product-market fit. How to apply?How to apply? If you're ready to join our team, send your CV along with a few sentences about yourself, a link to your portfolio and code samples (github link) using the form below! ❗Important: As part of your application, please include description of how you use AI tools during your daily work, and models/frameworks you have used so far! We use AI as the foundation of our work. Applications without the information above might not be taken into consideration .

🏢 Summary: Opportunity for a Lead Full Stack Engineer to provide technical leadership while building scalable, high‑performance applications using the Microsoft stack and modern cloud architecture. The role combines hands-on full stack development with active adoption of AI-assisted engineering practices across the SDLC. You will drive engineering excellence, mentor teams, and integrate AI capabilities into products and internal tools. 🗂️ Requirements: 7+ years experience with Microsoft stack (.NET, C#, SQL Server, T-SQL), Strong experience with .NET Core and Angular, Proficiency in JavaScript, HTML, CSS, Experience with Git, Experience designing scalable and maintainable systems, Knowledge of SOLID principles and design patterns, Experience with microservices architecture, Experience with Azure or other cloud platforms, Experience working in Scrum environments, Hands-on use of GenAI tools (Copilot, ChatGPT, Cursor) in SDLC, Experience integrating LLM APIs or AI capabilities into applications, Understanding of AI risks, testing, reviews, and compliance guardrails 📃 Skills: .NET, C#, SQL, T-SQL, .NETCore, Angular, JavaScript, HTML, CSS, Git, Azure, Microservices, SOLID, GenAI, LLM, Copilot, ChatGPT, Cursor 🏢 Description: About the Client: The Client provides comprehensive operational support and a range of expert services to the world’s leading insurers, brokers, fleet managers and automotive manufacturers. 3,300 employees across ten countries deliver exceptional standards on a large scale for over 1,200 clients. We help the global insurance market to handle millions of claims each year in the most cost-effective and efficient ways possible. The Client is embarking on an exciting and challenging transformation program and our software solutions are a driving force behind this strategy using cloud computing and leading-edge design patterns. Short Role Description: This is a great opportunity for an experienced Lead Full Stack Engineer to join our Software Development team as part of one of our established Scrum teams. Each agile team includes technical leadership, development, architecture, QA, product, and project management roles. We are looking for a strong engineering leader who combines deep hands-on development expertise with an AI-first mindset. This role requires an AI Champion — someone who actively applies AI tools across the Software Development Life Cycle and helps elevate engineering productivity, quality, and delivery standards through practical and responsible AI adoption. You will not only build high-performance applications, including high-traffic customer-facing platforms, but also act as a multiplier for engineering excellence by introducing modern practices, tools, and ways of working. Responsibilities: Provide technical leadership, mentorship, and hands-on support to engineers within the team. Design, develop, test, document, and maintain scalable backend and frontend solutions. Deliver high-quality, reusable, and maintainable code aligned with best engineering practices. Actively apply AI-assisted development approaches across design, coding, testing, and debugging. Drive improvements in engineering efficiency, quality, and delivery through practical AI usage. Produce clear and structured technical documentation. Provide realistic estimates and manage delivery timelines effectively. Participate in all Scrum ceremonies and contribute to team performance and continuous improvement. Coach teams on effective usage of GenAI tools and promote AI-first engineering culture. Requirements: 7+ years of experience with Microsoft development stack (.NET / C# / SQL Server / T-SQL). Strong experience with .NET Core, Angular, JavaScript, HTML, CSS, Git. Hands-on experience designing scalable and maintainable systems. Solid understanding of SOLID principles, design patterns, and microservices architecture. Experience working with cloud platforms (Azure preferred). Strong experience working in Scrum environments across different team setups. AI & Engineering Excellence Requirements: Proven hands-on experience using GenAI tools (e.g., Copilot, ChatGPT, Cursor, etc.) to improve development speed, code quality, testing, debugging, and documentation. Practical experience integrating LLM APIs or AI capabilities into applications or internal tools. Understanding of AI limitations, risks, and guardrails (testing, reviews, policies, compliance). Ability to introduce new tools and practices, influence teams, and scale adoption across engineering. Nice to Have: Experience building internal developer productivity tools or engineering automation solutions. Exposure to performance, scalability, and security requirements for large-scale platforms. Personal Attributes: Self-organising problem solver. Able to think outside the box (open thinking). Strong ability to work effectively in a team. Collaborating, motivating and energizing others (Team player). Encourage and drive others to deliver high-quality, cutting-edge software. You will have attention to detail and have a proactive ethos. Always looking for continuous improvement. Excellent verbal and written communication skills, in English. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits

🏢 Summary: Backend Engineer role focused on building and scaling the core architecture behind AI Agents, including reasoning layers, RAG systems, and high-volume conversational infrastructure. The position involves designing agentic orchestration, modernizing legacy systems, and integrating AI capabilities into scalable microservices running in production. You will work hands-on with LLM integrations, vector databases, and cloud-native infrastructure to support millions of daily conversations. 🗂️ Requirements: 6+ years backend development experience, Strong hands-on expertise in Node.js, Strong hands-on expertise in TypeScript, Experience with async programming, queues, and streams, Experience with real-time communication (WebSockets, service-to-service messaging), Commercial experience implementing RAG and Agentic systems in production, Experience with Function Calling and LLM integrations, Deep understanding of context management and multi-turn conversations, Experience with SQL databases (PostgreSQL), Experience with NoSQL databases (Elasticsearch), Experience with Vector Databases and embeddings, Experience with Google Cloud Platform, Experience with Kubernetes, Ability to design and maintain RESTful APIs, Experience working with microservices and scalable systems 📃 Skills: Node.js, TypeScript, PostgreSQL, Redis, Elasticsearch, Pinecone, pgvector, GCP, Kubernetes, Docker, LangGraph, LLMs, RAG, MCP, PubSub, WebSockets, SSE, Webhooks, Prometheus, Grafana, Vitest, Supertest, Playwright, Go, ETL, Microservices, Concurrency, Async, Streams, Queues, GitHubActions 🏢 Description: About your team You’ll join AI Engines – the team building the backend “brain” of AI Agents in Text App. These aren’t your average scripted bots. Our AI Agents understand context, communicate naturally, and take meaningful actions: from digging through the Knowledge Hub to answer customer queries, to guiding human agents, or triggering automations in third-party tools via Copilot. To make this happen, we need to design highly scalable backend systems capable of handling millions of conversations daily. We build the APIs, develop the reasoning layers, and continuously push the boundaries of what our agents can actually do. You will be responsible for: Hands-on building, scaling, and maintaining the core backend architecture (Vector Database, AI Engines, Knowledge Hub, etc.). Designing and implementing an Agentic reasoning and orchestration layer using Skills and tool calling (a core building block of our architecture). Modernizing the core by taking full ownership of migrating legacy implementations into our modern, highly scalable AI ecosystem. Collaborating with our AI researchers to experiment with, validate, and confidently push new AI features straight to production. Mastering Context Engineering & R&D by moving way beyond basic prompt engineering. You'll be experimenting with and optimizing how our agents communicate with LLMs (taking full ownership of multi-turn conversations, tool calling, advanced RAG integrations, system prompt design, and history management). Designing RESTful APIs and service integrations for AI and data-heavy use cases, while migrating legacy implementations to a modern ecosystem. Integrating AI Agents with MCP servers, shaping how they interact with external ecosystems. Setting the standard by taking an active part in architecture discussions, code reviews, and technical decision-making, while bringing an extreme ownership and "fast flagging" mindset to the team. You may be a good fit for this role if you: Have 6+ years of experience in backend development, with strong, recent, hands-on expertise in Node.js and TypeScript in recent projects . We need someone who is fluent in async programming, queues, and streams, and can jump into our codebase on Day 1. Have hands-on experience with real-time communication (WebSockets, async service-to-service messaging). Have proven commercial experience building AI-driven features . You don't just know the concepts—you’ve actively implemented RAG, Function Calling, and Agentic systems in production. A deep understanding of Context Engineering. You know that it’s no longer just about "writing good prompts." You have proven experience managing context windows, multi-turn conversation history, and tool calling within Agentic or RAG ecosystems. Have a solid grasp of database ecosystems, including SQL (Postgres) , NoSQL (Elasticsearch) , and Vector Databases (e.g., Pinecone, pgvector), along with the mechanics of embeddings. Know how to run and scale services on Google Cloud Platform and Kubernetes. Enjoy solving complex technical challenges in microservices, concurrency, and performance optimization. Bonus if you also: Experience with Go (Golang) is a strong plus. Have experience building Data Pipelines or ETL processes. Previous work on SaaS products, low-code/no-code platforms, or workflow automation. Our Tech Stack: (Let’s be transparent: while we value curiosity and a growth mindset, solid hands-on experience with Node.js and TypeScript is a strict requirement for this role. We are happy to give you time to learn our specific AI frameworks and databases on the go, as long as your core backend skills are top-notch.) Core (Must-have) : Node.js, TypeScript Databases : PostgreSQL, Redis, ElasticSearch Scalability & communication : PubSub, Webhooks, SSE AI-related : LLMs, LangGraph, Function Calling, Context Compression, MCP (Model Context Protocol) Infrastructure & deployment : Docker, GitHub Actions, Prometheus, Grafana Testing & reliability : Vitest, Supertest, Playwright How we work We’re a hybrid team – remote when it makes sense, onsite when it matters most. Once per quarter, your whole team spends 5 working days together at our Wrocław office – a time for focused execution, unblocking work, and driving key outcomes. Our office is open year-round – drop by anytime. Contract: B2B (self-employed). You’ll need a registered business in selected EU countries — either already set up or possible to register in your country . Please apply only if this works for you.

🏢 Summary: Senior Backend Engineer role focused on building and scaling the core AI backend powering advanced AI Agents, including reasoning layers, RAG systems, and real-time integrations. The position involves designing scalable architectures, implementing agentic orchestration with tool calling, and modernizing legacy systems into a high-performance AI ecosystem. You will work hands-on with Node.js and TypeScript to deliver production-ready AI-driven features handling millions of conversations. 🗂️ Requirements: 6+ years backend development experience, Strong hands-on Node.js experience, Strong hands-on TypeScript experience, Fluency in async programming, queues, streams, Experience with WebSockets and async messaging, Commercial experience implementing RAG systems, Experience with Function Calling in production, Experience building Agentic systems, Context window and multi-turn conversation management, Experience with SQL and NoSQL databases, Experience with Vector Databases and embeddings, Experience with GCP and Kubernetes, Experience with microservices architecture, Experience with Docker-based deployments 📃 Skills: Node.js, TypeScript, PostgreSQL, Redis, Elasticsearch, Pinecone, pgvector, GCP, Kubernetes, Docker, PubSub, WebSockets, SSE, LLMs, LangGraph, RAG, MCP, GitHub, Prometheus, Grafana, Vitest, Supertest, Playwright, Go 🏢 Description: About your team You’ll join AI Engines – the team building the backend “brain” of AI Agents in Text App. These aren’t your average scripted bots. Our AI Agents understand context, communicate naturally, and take meaningful actions: from digging through the Knowledge Hub to answer customer queries, to guiding human agents, or triggering automations in third-party tools via Copilot. To make this happen, we need to design highly scalable backend systems capable of handling millions of conversations daily. We build the APIs, develop the reasoning layers, and continuously push the boundaries of what our agents can actually do. You will be responsible for: Hands-on building, scaling, and maintaining the core backend architecture (Vector Database, AI Engines, Knowledge Hub, etc.). Designing and implementing an Agentic reasoning and orchestration layer using Skills and tool calling (a core building block of our architecture). Modernizing the core by taking full ownership of migrating legacy implementations into our modern, highly scalable AI ecosystem. Collaborating with our AI researchers to experiment with, validate, and confidently push new AI features straight to production. Mastering Context Engineering & R&D by moving way beyond basic prompt engineering. You'll be experimenting with and optimizing how our agents communicate with LLMs (taking full ownership of multi-turn conversations, tool calling, advanced RAG integrations, system prompt design, and history management). Designing RESTful APIs and service integrations for AI and data-heavy use cases, while migrating legacy implementations to a modern ecosystem. Integrating AI Agents with MCP servers, shaping how they interact with external ecosystems. Setting the standard by taking an active part in architecture discussions, code reviews, and technical decision-making, while bringing an extreme ownership and "fast flagging" mindset to the team. You may be a good fit for this role if you: Have 6+ years of experience in backend development, with strong, recent, hands-on expertise in Node.js and TypeScript in recent projects . We need someone who is fluent in async programming, queues, and streams, and can jump into our codebase on Day 1. Have hands-on experience with real-time communication (WebSockets, async service-to-service messaging). Have proven commercial experience building AI-driven features . You don't just know the concepts—you’ve actively implemented RAG, Function Calling, and Agentic systems in production. A deep understanding of Context Engineering. You know that it’s no longer just about "writing good prompts." You have proven experience managing context windows, multi-turn conversation history, and tool calling within Agentic or RAG ecosystems. Have a solid grasp of database ecosystems, including SQL (Postgres) , NoSQL (Elasticsearch) , and Vector Databases (e.g., Pinecone, pgvector), along with the mechanics of embeddings. Know how to run and scale services on Google Cloud Platform and Kubernetes. Enjoy solving complex technical challenges in microservices, concurrency, and performance optimization. Bonus if you also: Experience with Go (Golang) is a strong plus. Have experience building Data Pipelines or ETL processes. Previous work on SaaS products, low-code/no-code platforms, or workflow automation. Our Tech Stack: (Let’s be transparent: while we value curiosity and a growth mindset, solid hands-on experience with Node.js and TypeScript is a strict requirement for this role. We are happy to give you time to learn our specific AI frameworks and databases on the go, as long as your core backend skills are top-notch.) Core (Must-have) : Node.js, TypeScript Databases : PostgreSQL, Redis, ElasticSearch Scalability & communication : PubSub, Webhooks, SSE AI-related : LLMs, LangGraph, Function Calling, Context Compression, MCP (Model Context Protocol) Infrastructure & deployment : Docker, GitHub Actions, Prometheus, Grafana Testing & reliability : Vitest, Supertest, Playwright How we work We’re a hybrid team – remote when it makes sense, onsite when it matters most. Once per quarter, your whole team spends 5 working days together at our Wrocław office – a time for focused execution, unblocking work, and driving key outcomes. Our office is open year-round – drop by anytime. Contract: B2B (self-employed). You’ll need a registered business in selected EU countries — either already set up or possible to register in your country . Please apply only if this works for you.

🏢 Summary: Lead .NET Engineer role combining hands-on backend development with technical leadership, owning architecture, core platform services, APIs, and payment integrations in a distributed AWS environment. The position includes defining technical direction, mentoring engineers, driving CI/CD and operational excellence, and promoting AI-assisted development practices. After a short onboarding period in the US, the role is fully remote with long-term engagement in a strategic product initiative. 🗂️ Requirements: 6–10+ years of experience building and operating production software systems, Experience in Technical Lead or Lead Engineer role, Strong backend development experience with C# and .NET, Experience designing and operating distributed systems and microservices, Strong SQL and database design skills, Hands-on experience with AWS (SQS, DynamoDB, S3, ECS, Lambda), Experience owning and improving CI/CD pipelines, Experience in payments, financial services, or regulated environments, Working knowledge of React or Vue 📃 Skills: C#, .NET, AWS, ECS, Lambda, SQS, DynamoDB, S3, SQL, Microservices, REST, CI/CD, React, Vue, AI 🏢 Description: Lead .NET Engineer Remote 140–160 PLN/h B2B Full-time (FTE) *Project starts with a 2–3 week onboarding and training period in the US, followed by fully remote work. About the role We are looking for an experienced Lead .NET Engineer to take ownership of a squad responsible for core platform services, APIs, and payment integrations. In this role, you will combine hands-on software engineering with technical leadership. You will define technical direction, partner with Product on roadmap delivery, mentor engineers, and help drive the adoption of AI-assisted development practices across the software delivery lifecycle. Responsibilities Own squad-level architecture and technical decision-making. Lead the design, development, and operation of backend services and APIs. Ensure high standards of code quality, performance, security, and reliability. Drive incident management and operational excellence. Collaborate closely with Product Managers and stakeholders to deliver roadmap priorities. Mentor engineers through coaching, technical guidance, and regular feedback. Participate in hiring and team growth activities. Promote and implement AI-assisted development tools and best practices. Contribute to continuous improvement of engineering processes, CI/CD, and platform capabilities. Must-have requirements 6–10+ years of experience building and operating production software systems. Proven experience in a Technical Lead, Lead Engineer, or similar leadership role. Strong backend development experience with C#/.NET. Working knowledge of frontend technologies such as React or Vue. Experience designing and operating distributed systems and microservice architectures. Strong SQL and database design skills. Experience working within payments, financial services, or other regulated environments. Hands-on experience with AWS services, including: SQS DynamoDB S3 ECS Lambda Experience owning and improving CI/CD pipelines. Strong communication and stakeholder management skills. Nice to have Experience building large-scale payment platforms or fintech products. Previous people-management responsibilities. Experience with platform modernization and cloud transformation initiatives. Experience implementing AI-powered engineering tools and workflows. Tech Stack C# .NET AWS ECS Lambda SQS DynamoDB S3 SQL Microservices REST APIs CI/CD React / Vue AI-assisted Development What we offer Long-term engagement in a strategic product initiative. High-impact technical leadership role. Opportunity to shape engineering standards and architecture. Exposure to modern AI-assisted development practices. International environment and collaboration with US-based teams. Fully remote work after onboarding period in the US.

🏢 Summary: Remote Team Lead Software Development role focused on leading a cross-functional engineering team while staying hands-on with backend and web service architecture and implementation in a .NET environment. The position combines technical leadership, product collaboration, and ownership of architectural decisions in an agile setup. You will drive engineering quality, technical standards, and team growth while contributing directly to code and system design. 🗂️ Requirements: Several years of experience in software development with .NET / C#, Minimum 3 years of experience leading development teams, Strong knowledge of software design patterns, Strong understanding of system architecture, Experience with modern engineering practices, Hands-on experience with backend and web services development, Experience using AI in software development process, Fluent English 📃 Skills: .NET, C#, AI, Elasticsearch, RabbitMQ, Redis, Azure, CI/CD, Umbraco, Containers, Backend, WebServices, Architecture, Agile 🏢 Description: Does building awesome, innovative products that add up to something meaningful sound like a dream come true? Come join us and make that vision a reality! About We are looking for an experienced Team Lead Software Development who combines strong technical expertise with leadership skills and a product-oriented mindset. In this role, you will take ownership of development teams, supporting both its technical direction and people development. You will lead a cross-functional engineering team of around 7–9 people , including Frontend, Backend, and QA specialists. The team works in an agile setup and collaborates closely with a Product Owner, UX Design, DevOps, and ITOps. Responsibilities Lead, coach, and support the development of your engineering team Help your team grow into a high-performing, self-organized unit Act as a sparring partner for the Product Owner and actively contribute to roadmap planning and prioritization Stay hands-on with the design, architecture, and implementation of backend and web services Make and own technical decisions, while communicating them clearly to stakeholders Improve agile processes within the team and continuously optimize the way of working Contribute to solution and domain design Strengthen engineering quality, good practices, and technical standards Take part in recruitment interviews and support the further development of the team Our offer Competitive salary on B2B contract Fully remote position Real impact and independence at work Individual career path Work-life balance A non-corporate atmosphere where innovation, personal growth, and teamwork thrive 100+ smart, curious & ambitious engineers What you bring Several years of experience in software development with .NET / C# At least 3 years of experience leading development teams, both technically and people-wise Experience using AI in the software development process Strong understanding of software design patterns, system architecture, and modern engineering practices A hands-on approach and the ability to stay close to the code when needed Strong communication skills and the ability to explain technical topics clearly to both technical and non-technical stakeholders A pragmatic mindset — you care about quality, but you also understand business priorities Fluent English, German is a plus Nice to have Experience with Elasticsearch, RabbitMQ, Redis, containers, Azure Cloud, CI/CD, Umbraco Experience working in a scale-up environment Knowledge of the financial market or financial products Benefits International Projects Small Teams Flat Structure Friendly Atmosphere Flexible Hours Individual Career Path We want your TALENT! Don’t hesitate and APPLY! We are happy to tell you more details about this position in a phone call. Our recruitment process is very fast and straightforward to ensure a great experience from the first interview to joining your dream team!