Frontend React/Next.js Developer with AI Mindset

🏢 Summary: Forward-Deployed AI Engineer role focused on leading Next.js frontend migrations and delivering production-grade AI solutions for enterprise clients. The position combines hands-on TypeScript development, architectural optimization, and implementation of LLM-powered and agentic systems. The engineer works directly with client teams to modernize platforms and enable scalable, high-performance applications. 🗂️ Requirements: 5+ years of software engineering experience, 2+ years in customer-facing technical role, Expert-level TypeScript proficiency, Deep knowledge of Next.js and React ecosystem, Experience with SSR, SSG, and Server Components, Production experience with LLMs and AI workflows, Experience leading frontend migrations, Ability to conduct code audits and performance optimization, Experience building production-ready applications 📃 Skills: TypeScript, JavaScript, Next.js, React, LLMs, AI, SSR, SSG, ISR, Node.js, APIs, Edge, Streaming 🏢 Description: About Blazity Blazity is a team of React.js and Next.js experts building modern, API-first digital products. We partner with enterprise clients as trusted technology advisors, delivering solutions that span complex web platforms, e-commerce ecosystems, and custom software products. Recently, we’ve been expanding our AI capabilities—autonomous agents, AI-driven automation, and LLM-powered workflows—helping companies unlock operational efficiency and innovate at scale. About the Role We’re looking for a Forward-Deployed AI Engineer to work directly with our enterprise clients, helping them modernize frontend systems, implement AI solutions, and transform workflows. You’ll be hands-on, building production-ready systems, guiding migrations, and helping clients realize measurable business outcomes. What You’ll Do Lead complex frontend migrations to Next.js, modernizing legacy React, Vue, or other frameworks. Conduct technical assessments and code audits—analyzing performance bottlenecks, architectural anti-patterns, and optimization opportunities. Architect and implement high-performance applications leveraging Next.js, Server Components, streaming, ISR, edge functions, and advanced rendering strategies. Build production AI solutions, including agentic workflows, autonomous agents, and LLM-powered systems. Work directly with client teams to develop production-ready TypeScript code and train client engineers to maintain and extend the solutions. Drive enablement through workshops, pair programming, and documentation. Participate in pre-sales and solution scoping, providing technical expertise for migrations, AI transformations, and audits. Contribute reusable patterns, libraries, and best practices to Blazity’s internal AI and frontend tooling. About You: 5+ years of software engineering experience, including 2+ years in a customer-facing technical role (consulting, solutions engineering, forward-deployed engineering, or technical founder experience). Expert in TypeScript and comfortable shipping production code daily. Deep knowledge of Next.js and React ecosystem, including migrations, SSR/SSG, Server Components, and performance optimization. Production experience with LLMs, AI SDKs, and agentic workflows. High agency, comfortable in ambiguity, and able to navigate complex enterprise environments. Strong consulting and communication skills—able to translate technical capabilities into business value. Bonus Points: Experience leading enterprise AI transformation initiatives. Familiarity with multi-agent orchestration, tool calling, or Model Context Protocol (MCP). Contributions to open-source Next.js, React, or AI SDK projects. Enterprise deployment experience, including security, compliance, and multi-region architectures. What we offer 💼 B2B contract with competitive rate 🌍 100% remote work 🚀 High-impact, hands-on role delivering cutting-edge AI solutions for enterprise clients 🧠 Collaboration with senior engineers, founders, and client teams shaping AI capabilities 🌴 29 paid vacation days 🏥 Private medical insurance fully covered 🏋️ Fully paid sports card Salary ranges B2B: 100-120 zł/h + VAT Location 100% Remote from Poland

🏢 Summary: The offer is for a Senior AI Fullstack Engineer to design and deliver production-ready, LLM-powered web applications using modern React and Next.js architecture. The role focuses on building autonomous agents, RAG systems, and AI-driven workflows integrated with enterprise-grade products. It involves end-to-end ownership of scalable AI solutions from architecture to deployment. 🗂️ Requirements: 8+ years experience as consultant or forward deployed engineer, Strong experience with Next.js (App Router), React, TypeScript, Deep understanding of Server and Client Components (RSC), Experience with streaming, caching, revalidation, Server Actions, Experience with Vercel AI SDK, LangGraph or MCP, Experience building RAG systems, Hands-on experience with Anthropic and OpenAI APIs, Experience shipping LLM-powered features to production, Practical experience with prompt engineering and structured outputs, Experience with tool calling and agent workflows, Experience with multi-turn orchestration, Understanding of token economics and context windows, Experience with prompt evaluation methods, Ability to design robust, production-ready AI systems 📃 Skills: Next.js, React, TypeScript, RSC, Vercel, LangGraph, MCP, RAG, Claude, OpenAI, Anthropic, Prompting, Streaming, ServerActions, Agents, APIs 🏢 Description: About the Role At Blazity, we are a team of React.js and Next.js experts building modern, API-first digital products for enterprise clients. We are expanding our AI capabilities—autonomous agents, AI-driven automation, and LLM-powered workflows—and are looking for a Senior AI Fullstack Engineer who can design and ship production-ready AI systems. You will work at the intersection of modern web architecture and generative AI , taking ownership of solutions delivered to real users. Our requirements Must-have Technical Excellence: 8+ years of experience as a consultant / forward deployed engineer Strong experience with Next.js (App Router), React, TypeScript Deep understanding of: Server vs Client Components (RSC) streaming, caching, revalidation, Server Actions Vercel AI SDK / LangGraph / MCP Experience building RAG systems Claude extended thinking / prompt caching / Batch APIs AI Engineering: Proven experience shipping LLM-powered features to production Hands-on with Anthropic / OpenAI APIs (messages, tool use, streaming) Practical experience with: prompt engineering (structured output, few-shot, XML) tool calling / agent workflows multi-turn orchestration Understanding of: token economics (input/output costs, context window) latency vs quality trade-offs Reliability & Quality: Experience with: prompt evaluations (LLM-as-judge, rule-based) handling hallucinations and failure modes Ability to design robust AI systems , not just prototypes Soft Skills: Strong ownership mindset Experience working directly with clients Clear communication and structured thinking (English C1) Ability to make decisions in ambiguous environments Nice-to-have: What You Will Do Ship Production Apps: Build scalable web applications using Next.js (App Router) and TypeScript , ensuring high performance and clean architecture. Engineer AI Workflows: Develop and orchestrate LLM-powered features using Anthropic and OpenAI APIs, focusing on tool use and streaming. Agentic Orchestration: Design autonomous agent loops and multi-turn workflows, knowing when to use a structured pipeline versus a dynamic agent. Optimize & Evaluate: Manage token economics (pricing, context windows) and implement prompt evaluations (LLM-as-judge, rule-based) to ensure system reliability. Collaborate: Work directly with senior engineers, founders, and client teams to shape AI capabilities from concept to production. What we offer B2B: 120 – 180 PLN/h + VAT 🔥 100% remote (Poland) 29 paid vacation days Private healthcare + sports card High-impact work on real AI systems

🏢 Summary: Project Manager role focused on end-to-end delivery of enterprise digital products in an Agile environment, with strong emphasis on stakeholder communication and engineering team enablement. The position combines classic IT project management with AI-driven process optimization and collaboration on modern web and AI-powered systems. 🗂️ Requirements: 2–3 years Project Manager experience in IT services, Experience in international environments, Strong knowledge of Agile and Scrum, Understanding of T&M, Fixed Price, SLAs, Change Requests, Ability to manage scope, budget, timeline, risks, Experience with stakeholder and client management, Strong analytical skills with reports and dashboards, Fluent English (C1), Active use of AI tools in daily work, Understanding of web development concepts 📃 Skills: Agile, Scrum, T&M, SLA, React, Next.js, AI, LLM, Automation, Dashboards 🏢 Description: About us At Blazity, we are a team of React.js and Next.js experts building modern, API-first digital products for enterprise clients. We partner with global organizations as trusted technology advisors, delivering complex web platforms, e-commerce solutions, and increasingly — AI-powered systems, including autonomous agents and LLM-driven workflows. We value ownership, transparency, and strong collaboration — both internally and with our clients. About the role We are looking for a Project Manager who will take ownership of delivering high-quality digital products for our enterprise clients. This role combines classic project management with a strong focus on communication, stakeholder alignment, and enabling engineering teams to do their best work. You will be responsible for managing projects end-to-end while working closely with developers, clients, and leadership. About you Must-have: 2–3 years of experience as a Project Manager in IT services, working in international environments Strong understanding of Agile (Scrum) and concepts like T&M, Fixed Price, SLAs, Change Requests Ability to manage projects holistically: scope, budget, timeline, risks Excellent communication skills — absolutely key in this role Strong analytical mindset — you like working with data, reports, and dashboards High attention to detail and reliability — people trust you to deliver Strong stakeholder management skills and confidence in client-facing situations High adaptability and flexibility — comfortable working in a fast-changing, dynamic environment Fast learner — able to quickly understand new domains, tools, and project contexts Fluent English (C1) Interest in AI and automation (AI-first mindset) Active usage of AI tools to optimize daily work and project management processes Nice to have: Experience working with enterprise clients Experience with AI or process automation (e.g. using AI tools to improve workflows, productivity, or delivery processes) Exposure to AI/LLM-based projects Technical background or understanding of web development (React / Next.js) What you will do Manage projects end-to-end: from discovery to delivery Plan scope, timelines, budgets, and resource allocation Identify risks early and proactively address them Build strong relationships with clients and act as a trusted partner Ensure smooth communication between stakeholders and development teams Support engineers by removing blockers and enabling effective delivery Lead and support Agile processes (Scrum ceremonies, backlog prioritization, planning) Create clear reports, summaries, and performance insights Maintain accurate and structured project documentation Collaborate with the Delivery team and contribute to improving internal processes Leverage AI tools to streamline project workflows, reporting, and communication Identify opportunities to automate internal processes and improve delivery efficiency using AI Support adoption of AI-driven solutions within project and delivery processes What we offer B2B contract: 60–80 PLN net + VAT / hour 100% remote work (Poland-based) 29 paid vacation days Private medical care (fully covered) Sports card (fully covered) Work on impactful, modern projects for enterprise clients High level of ownership and real influence on how projects are delivered Opportunity to grow within a strong Delivery team and learn from experienced PMs If you’re someone who thrives in a dynamic environment, communicates clearly, adapts quickly to change, and enjoys working closely with people and technology — we’d love to talk. 🚀

🏢 Summary: Junior AI Developer role focused on building and integrating LLM-based features, simple AI workflows, and early-stage agent systems in real-world production projects. The position emphasizes hands-on experimentation with AI tools and using web technologies as a foundation for developing intelligent systems. It is designed for students or early-career developers with practical experience in AI experimentation. 🗂️ Requirements: Active use of agentic coding tools (Claude, Codex, Cursor), Hands-on experimentation with LLMs (chatbots, automation, structured outputs), Understanding of LLM concepts and AI feature development, Knowledge of JavaScript or TypeScript, Knowledge of React or Next.js, Understanding of REST APIs, Experience integrating LLM APIs, Ability to design and iterate prompts, English C1 level 📃 Skills: JavaScript, TypeScript, React, Next.js, REST, APIs, LLM, OpenAI, Anthropic, Prompting, Git, Claude, Codex, Cursor 🏢 Description: About the Role At Blazity, we are building modern web applications and rapidly expanding into AI-powered systems — agents, automation, and LLM-based workflows . We are looking for a high-potential Junior AI Developer (student or early career) who is strongly interested in AI and LLMs , actively experiments with them, and wants to turn that into real-world, production experience. This is not a standard frontend role — this is an AI-first position , where web development is a tool to build intelligent systems. Our requirements AI-first mindset You actively use agentic coding tools like: Claude Code / Codex / Cursor You have experimented with AI , e.g.: building a chatbot automating tasks with LLMs generating structured outputs You are curious: how LLMs work how to build real AI features (not just use them) This role is for people who already do things with AI, not just read about it. Technical foundations Knowledge of: JavaScript / TypeScript React or Next.js (even small projects) Understanding of APIs (REST basics) Learning mindset You learn by building (projects > theory) You are comfortable making mistakes and iterating You are proactive and self-driven Big plus First experience with: OpenAI / Anthropic APIs prompt engineering (structured output, few-shot) You built: small AI apps (chatbot, automation, AI tool) GitHub projects showing AI experiments Participation in hackathons (especially AI-related) Other English C1 What You Will Do Work on real AI features Support development of: LLM-based features simple AI workflows early-stage agent-like systems Help with: prompt design and iteration testing and improving AI outputs building simple integrations with LLM APIs What we offer Hands-on experience with real AI systems in production Work with experienced engineers building AI solutions Fast growth path toward AI Engineer role Opportunity to work on real client projects (not toy problems) Location 100% remote from Poland

🏢 Summary: Senior Frontend React Developer role focused on building scalable Next.js applications that power enterprise AI interfaces, including chat, semantic search, and knowledge graph features. The position involves developing high-performance, real-time, and data-intensive user interfaces with strong emphasis on accessibility, security, and code quality. You will contribute to reusable design systems, performance optimization, and AI-assisted development in a modern tech stack. 🗂️ Requirements: 5+ years frontend development experience, 3+ years experience with React, Strong knowledge of JavaScript, Strong knowledge of TypeScript, Strong knowledge of Next.js including SSR, App Router, Server Components, Advanced TypeScript skills, Experience with modern CSS solutions (Tailwind CSS or CSS-in-JS), Experience with complex state management, Experience with real-time collaboration features, Experience building AI-related interfaces (chat, streaming, semantic search), Understanding of localization, Understanding of accessibility standards, Understanding of security standards, Experience with AI coding tools (OpenAI Codex or Claude), Upper-Intermediate (B2) English or higher 📃 Skills: React, Next.js, JavaScript, TypeScript, SSR, Tailwind, CSS-in-JS, SWR, WebSockets, ReactFlow, Highcharts, Storybook, Playwright, Node.js, Python, AWS, S3, CloudFront, Lambda, OpenAI, Claude, Codex, Copilot, Puppeteer, Cypress, Lerna, Turborepo, Nx, MCP, DSPy 🏢 Description: About Us Many companies want to use AI agents, but these tools often have problems with real business tasks. We create a platform that helps AI understand company rules, workflows, and processes, so it can give correct and reliable answers. Our technology is trusted by large international companies and works with leading AI and cloud platforms. Our goal is to help people find better answers and make better decisions with AI. Senior Frontend React Developer As a Frontend React Developer, you will build modern user interfaces that make enterprise AI easy to use and reliable. You will create Next.js applications that work with large amounts of data, real-time AI responses, and advanced business features. Your work will help thousands of users access important information quickly and confidently. What You Will Do Design and develop scalable Next.js SSR applications. Build interfaces for AI chat, semantic search, knowledge graphs, and AI builders. Create data visualizations using libraries such as React Flow and Highcharts. Develop multilingual, accessible, secure, and cross-browser compatible applications. Work with SWR for data fetching, caching, and real-time websocket updates. Build and maintain reusable UI components and a Storybook design system. Improve application performance, monitor Core Web Vitals, and write automated tests with Playwright. Use AI coding assistants to speed up development while keeping high code quality. Participate in code reviews, share knowledge, and support continuous learning within the team. Requirements At least 5 years of frontend development experience. More than 3 years of experience with React and JavaScript/TypeScript. Strong knowledge of Next.js, including SSR, App Router, and Server Components. Advanced TypeScript skills and experience with modern CSS solutions such as Tailwind CSS or CSS-in-JS. Experience building applications with complex state management, real-time collaboration, and high performance. Experience creating interfaces for AI features such as chat systems, streaming responses, or semantic search. Understanding of localization, accessibility, security standards, and writing maintainable code. Experience using AI coding tools such as OpenAI Codex or Claude. Upper-Intermediate (B2) or higher English communication skills. Nice to Have Experience with React Flow, Highcharts, or similar visualization libraries. Basic backend knowledge in Node.js or Python and experience discussing API design. Experience with vector search, RAG interfaces, or semantic search solutions. Familiarity with MCP, DSPy, or other AI frameworks. Experience with monorepo tools such as Lerna, Turborepo, or Nx. Knowledge of AWS services like S3, CloudFront, and Lambda. Experience with Playwright, Puppeteer, or Cypress. What We Offer B2B contract and company stock options. MacBook Pro for work. Modern technology stack and opportunities to contribute to open-source projects. Access to advanced AI development tools, including GitHub Copilot, Claude Code, OpenAI Codex, TypingMind, v0, MCP Servers, and credits for testing new AI technologies. Our Values We believe our success comes from the way we work together: Quality – We aim for excellent work and high standards in everything we do. Momentum – We take initiative and keep projects moving forward. Accountability – We take responsibility and give honest, respectful feedback. Hard Work – We solve difficult problems together and stay committed to our goals. Learning – We are curious, improve every day, and learn from mistakes. Adaptability – We accept change and see challenges as opportunities. Teamwork – We communicate openly, support each other, and succeed as one team.

🏢 Summary: Front-end Engineer role focused on building and scaling React-based user interfaces for an internal GenAI and LLM-powered productivity platform. The position involves creating intuitive, high-performance UIs, integrating backend APIs, and delivering seamless AI-driven user experiences. This is a hybrid, full-time B2B contract role based in Krakow. 🗂️ Requirements: Commercial experience in front-end development, Proficiency in React.js, Strong knowledge of JavaScript (ES6+), Strong knowledge of CSS, Experience integrating REST or GraphQL APIs, Ability to handle asynchronous data flows, Strong UX/UI understanding, Knowledge of accessibility best practices, Knowledge of performance optimization, Experience with front-end testing practices 📃 Skills: React, JavaScript, ES6, CSS, Tailwind, CSS-in-JS, REST, GraphQL, APIs, UX, UI, Accessibility, Performance, Testing 🏢 Description: Krakow, Poland | Hybrid, 2 days/week Full‑time | B2B contract Shape the future of work with AI An internal GenAI & LLM‑powered productivity platform is already redefining how thousands of employees interact with intelligent tools. Now, we need you – a front‑end engineer with a passion for smooth, human‑centric interfaces – to bring these experiences to life. You won't just write components. You'll design and deliver React‑based UIs that make complex AI feel simple, intuitive, and even delightful. What you'll do Build responsive, high‑performance UIs that scale across devices and internal tools Rapidly prototype new features at the intersection of productivity and AI Collaborate closely with product managers and UX designers to turn research into polished interfaces Seamlessly integrate backend APIs (REST / GraphQL) into fluid front‑end experiences Champion modern front‑end best practices – accessibility, performance, maintainability, testing What you bring Must‑have: Solid commercial experience in front‑end development Deep proficiency in React.js, JavaScript (ES6+), and CSS (Tailwind / CSS‑in‑JS is a plus) Strong sense of UX/UI design – you notice the details others miss Experience integrating with backend APIs and handling asynchronous data flows Highly desirable: Previous work on AI / GenAI products or UX‑heavy applications (chat interfaces, copilots, creative tools, dashboards with complex interactions)

🏢 Summary: Senior Frontend React Developer role focused on building and optimizing advanced UI applications with generative AI features in an enterprise environment. The position involves collaborating with cross-functional teams to deliver high-quality, user-centric solutions and integrating CI/CD and AI operational workflows. Hybrid work model based in Warsaw. 🗂️ Requirements: 4+ years of experience in React development, 4+ years of experience in JavaScript development, Strong knowledge of DevOps practices, Hands-on experience with Jira, Hands-on experience with GitLab, Hands-on experience with OpenShift, Proficiency in Linux, Experience with unit testing, Experience with system testing, Fluent Polish, Fluent English, Legal right to work in Europe 📃 Skills: React, JavaScript, DevOps, Jira, GitLab, OpenShift, Linux, CI/CD, Agile, Scrum, AI, Testing 🏢 Description: Empower innovation at the forefront of UI and AI technology — craft impactful user experiences that shape the future! Warszawa-based opportunity with hybrid work model (up to 2 remote days per week). As a Senior Frontend React Developer , you will be working for our client, a leader in enterprise software solutions, focusing on delivering cutting-edge UI and generative AI services. Join a collaborative, agile team committed to creating high-quality, user-centric applications that drive digital transformation and innovation. Your main responsibilities: Develop and optimize complex frontend applications using React and JavaScript, ensuring seamless user experiences Collaborate with cross-functional teams including data scientists and DevOps to deliver innovative UI solutions, including generative AI features Confirm technical designs, troubleshoot issues, and implement best practices for code quality and performance Contribute to the integration of CI/CD pipelines and operational workflows involving AI services Participate actively in Agile/Scrum ceremonies, promoting effective teamwork and continuous improvement You're ideal for this role if you have: 4+ years of proven experience in React and JavaScript development Strong understanding of DevOps practices with hands-on experience using Jira, GitLab, and OpenShift Proficiency in Linux OS and performing unit and system testing Excellent command of English, both written and spoken Ability to independently deliver high-quality code and confirm technical designs It is a strong plus if you have: (optional) Experience working with financial data, including Market Data and Reference Data Full-stack development expertise Knowledge of CI/CD pipelines and generative AI operational workflows Language Required for the role: Fluent in Polish and English Eligibility for the role: Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Frontend-leaning Fullstack Engineer role building high-scale SaaS systems with modern React/Next.js frontends and Node.js/NestJS backends, heavily leveraging AI tools and automation. You will design APIs, async systems, and event-driven architectures, integrate external services, and ship MVPs to production with ownership and speed. The role emphasizes AI-driven workflows, rapid experimentation, and scalable, production-ready systems. 🗂️ Requirements: 2.5+ years professional full-stack experience, Strong React.js and Next.js skills, Backend experience with Node.js (NestJS preferred), Experience integrating external APIs (auth, pagination, retries, rate limits), Hands-on experience with modern AI tools (OpenAI, Claude, Cursor), Strong SQL skills (PostgreSQL preferred), Experience with async processing, queues, background jobs, Understanding of reliable systems (error handling, retries, observability), Fluent English and Polish 📃 Skills: React, Next.js, Node.js, NestJS, SQL, PostgreSQL, REST, WebSockets, OpenAI, Claude, Cursor, LavinMQ, BullMQ, Kafka, AWS, GCP, Fly.io, DigitalOcean, BigQuery, ClickHouse, Golang, Elixir, Rust, gRPC, GitLabCI 🏢 Description: At Web Impact, we’re more than just an email marketing agency and digital solutions provider. We build cutting-edge, socially impactful products that redefine how businesses operate in the digital world. We’re looking for a frontend-leaning Fullstack Engineer who enjoys building complex systems, integrating external services, and leveraging AI tools to speed up development and automate workflows. If you’re excited about combining modern frontend development with AI-driven workflows and automation tools like Claude Code, Cursor, and LLM frameworks , this one is for you. What You’ll Do Develop and contribute to end-to-end features across SaaS products and internal tools, collaborating with senior engineers on architecture and implementation decisions. Build modern, high-performance frontends using Next.js and React.js Develop scalable backend services using Node.js / NestJS Design and integrate APIs (REST, WebSockets, external services) Build and maintain automation workflows and background jobs Work with async systems, queues, and event-driven architectures Integrate third-party services with real-world constraints (rate limits, retries, auth flows) Use AI tools to improve development speed, testing, and automation Collaborate directly with product, data, and leadership teams Build MVPs, proof-of-concepts, and new product ideas from scratch Rapidly validate business ideas through experimentation and iteration Help evolve successful prototypes into production-ready systems AI & Automation This role includes working with modern AI tooling and automation systems, with a strong focus on speed, ownership, and execution : Using tools like Claude Code, Cursor, and OpenAI SDK in daily development Building AI-driven workflows and integrations quickly and iteratively Automating repetitive processes (data handling, content, integrations) Applying LLMs in production with a pragmatic, results-first approach Taking ownership of problems - from idea to production Shipping fast, testing in real conditions, and iterating based on outcomes Being accountable for delivery - not just writing code, but making things work end-to-end Prioritizing execution over perfection - speed is key What We’re Looking For 2,5+ years of professional full-stack experience Strong frontend skills in React.js / Next.js Backend experience with Node.js (NestJS preferred) Experience integrating external APIs (auth, pagination, retries, rate limits) Hands-on experience with modern AI tools (OpenAI, Claude, Cursor, etc.) Good SQL skills (PostgreSQL preferred) Experience working with async processing, queues, and background jobs Understanding of building reliable systems (error handling, retries, observability) Strong communication skills and ability to work cross-functionally Fluent in English and Polish Nice to Have Experience with Rust (async, Tokio, Axum) Experience with Elixir (Phoenix LiveView, GenServer) Understanding of distributed systems and architectures Experience with multi-region deployments and geo-distributed infrastructure Experience building systems with high parallelism (a large number of workers processing jobs concurrently) Familiarity with distributed databases and data consistency trade-offs Experience with multi-tenancy architectures (tenant isolation, scaling strategies) Experience working with high-throughput event pipelines Our Tech Stack Frontend: Next.js, React.js Backend: Node.js, NestJS, Golang, Elixir, Rust Data: PostgreSQL, BigQuery, ClickHouse Infra: AWS, Fly.io , Google Cloud, DigitalOcean Queues & Workers: LavinMQ, BullMQ, Kafka CI/CD: GitLab CI AI/ML & Automation: Proprietary GenAI models, OpenAI, Claude, internal tooling Integrations: REST, gRPC, WebSockets, external APIs with rate limits Why Join Us? Work on high-scale SaaS systems processing hundreds of millions of events daily , with real-time pipelines and data-heavy workloads. Ownership from day one - influence architecture, technology choices, and product direction. Collaborate with world-class engineers, AI specialists, and PMs. Innovation-first culture - explore cutting-edge frameworks and architectures. Fast execution, minimal bureaucracy, no unnecessary meetings Opportunity to work with modern AI tooling in production Competitive senior-level compensation and career growth. Social impact - contribute to automation products that empower businesses and communities. Our Streamlined Hiring Process Initial call Technical deep dive with our team Decision

🏢 Summary: Frontend-leaning Fullstack Engineer role focused on building and owning end-to-end SaaS features using modern frontend frameworks, scalable backend services, and AI-driven automation tools. The position combines React/Next.js development with Node.js backend work, async systems, and production AI integrations. Strong emphasis on speed, ownership, and delivering reliable, high-scale systems. 🗂️ Requirements: 3+ years professional full-stack development experience, Strong proficiency in React.js and Next.js, Solid backend experience with Node.js (NestJS preferred), Experience integrating external APIs (authentication, pagination, retries, rate limits), Experience with asynchronous processing, queues, and background jobs, Hands-on experience with AI tools (OpenAI, Claude, Cursor), Strong SQL skills (PostgreSQL preferred), Experience building reliable systems (error handling, retries, observability), Fluent English and Polish 📃 Skills: React, Next.js, Node.js, NestJS, JavaScript, TypeScript, PostgreSQL, SQL, REST, WebSockets, gRPC, Kafka, BullMQ, LavinMQ, AWS, GCP, DigitalOcean, Fly.io, GitLab, OpenAI, Claude, Cursor, Golang, Elixir, Rust, BigQuery, ClickHouse 🏢 Description: At Web Impact, we’re more than just an email marketing agency and digital solutions provider. We build cutting-edge, socially impactful products that redefine how businesses operate in the digital world. We’re looking for a frontend-leaning Fullstack Engineer who enjoys building complex systems, integrating external services, and leveraging AI tools to speed up development and automate workflows. If you’re excited about combining modern frontend development with AI-driven workflows and automation tools like Claude Code, Cursor, and LLM frameworks , this one is for you. What You’ll Do Own and deliver end-to-end features across SaaS products and internal tools Build modern, high-performance frontends using Next.js and React.js Develop scalable backend services using Node.js / NestJS Design and integrate APIs (REST, WebSockets, external services) Build and maintain automation workflows and background jobs Work with async systems, queues, and event-driven architectures Integrate third-party services with real-world constraints (rate limits, retries, auth flows) Use AI tools to improve development speed, testing, and automation Collaborate directly with product, data, and leadership teams AI & Automation This role includes working with modern AI tooling and automation systems, with a strong focus on speed, ownership, and execution : Using tools like Claude Code, Cursor, and OpenAI SDK in daily development Building AI-driven workflows and integrations quickly and iteratively Automating repetitive processes (data handling, content, integrations) Applying LLMs in production with a pragmatic, results-first approach Taking full ownership of problems - from idea to production Shipping fast, testing in real conditions, and iterating based on outcomes Being accountable for delivery - not just writing code, but making things work end-to-end Prioritizing execution over perfection - speed is key What We’re Looking For 3+ years of professional full-stack experience Strong frontend skills in React.js / Next.js Solid backend experience with Node.js (NestJS preferred) Experience integrating external APIs (auth, pagination, retries, rate limits) Experience working with async processing, queues, and background jobs Hands-on experience with modern AI tools (OpenAI, Claude, Cursor, etc.) Good SQL skills (PostgreSQL preferred) Understanding of building reliable systems (error handling, retries, observability) Strong communication skills and ability to work cross-functionally Fluent in English and Polish Nice to Have Experience with Rust (async, Tokio, Axum) Experience with Elixir (Phoenix LiveView, GenServer) Understanding of distributed systems and architectures Experience with multi-region deployments and geo-distributed infrastructure Experience building systems with high parallelism (a large number of workers processing jobs concurrently) Familiarity with distributed databases and data consistency trade-offs Experience with multi-tenancy architectures (tenant isolation, scaling strategies) Experience working with high-throughput event pipelines Our Tech Stack Frontend: Next.js, React.js Backend: Node.js, NestJS, Golang, Elixir, Rust Data: PostgreSQL, BigQuery, ClickHouse Infra: AWS, Fly.io , Google Cloud, DigitalOcean Queues & Workers: LavinMQ, BullMQ, Kafka CI/CD: GitLab CI AI/ML & Automation: Proprietary GenAI models, OpenAI, Claude, internal tooling Integrations: REST, gRPC, WebSockets, external APIs with rate limits Why Join Us? Work on high-scale SaaS systems processing hundreds of millions of events daily , with real-time pipelines and data-heavy workloads. Ownership from day one - influence architecture, technology choices, and product direction. Collaborate with world-class engineers, AI specialists, and PMs. Innovation-first culture - explore cutting-edge frameworks and architectures. Fast execution, minimal bureaucracy, no unnecessary meetings Opportunity to work with modern AI tooling in production Competitive senior-level compensation and career growth. Social impact - contribute to automation products that empower businesses and communities. Our Streamlined Hiring Process Initial call Technical deep dive with our team Decision

🏢 Summary: Long-term remote B2B opportunity for an experienced Fullstack Software Developer to build scalable React/Next.js and Python (FastAPI) applications enhanced with AI/LLM integrations. The role focuses on modern frontend architecture, async backend services, real-time systems, and production-grade AI workflows. You will design end-to-end architectures and deliver secure, high-performance solutions in a distributed engineering team. 🗂️ Requirements: 5+ years experience as Fullstack or Software Engineer, Strong React and Next.js experience in production, Strong TypeScript proficiency, Strong Python experience with async programming, Experience with FastAPI, Experience designing scalable distributed systems and APIs, Knowledge of frontend architecture, state management, performance optimization, Experience with automated testing frameworks, Experience with REST, GraphQL, WebSockets, Hands-on experience integrating AI/LLM services (OpenAI, Azure AI or similar), Experience with LangChain or similar agent frameworks, Strong system design and software architecture knowledge, Experience working in Agile environments, Fluency in English, EU citizenship and residence in Poland 📃 Skills: React, Next.js, TypeScript, Python, FastAPI, Tailwind, Playwright, Vitest, React, Testing, Library, pytest, REST, GraphQL, WebSockets, OpenAI, Azure, LangChain, AI, LLM 🏢 Description: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking an experienced Software Developer (React + Python + AI) to join an innovative engineering remote team working on modern full-stack applications enhanced with AI capabilities. In this role, you will contribute to designing scalable systems, building high-performance web applications, and integrating advanced AI/LLM solutions into production environments. Project information: Type of project: IT services Office location: Wrocław, Poland Work mode: Remote from Poland Budget: 130-160 PLN net/ h- b2b Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Design and develop modern web applications using React / Next.js and TypeScript Build reusable, scalable, and accessible UI components using Tailwind and modern design systems Drive frontend architecture decisions including state management, modularization, and performance optimization Ensure high-quality frontend delivery with strong test coverage (Playwright, Vitest, React Testing Library) Design and develop backend services using Python (async) and FastAPI Build scalable REST and event-driven APIs as well as real-time systems Implement WebSockets or similar technologies for real-time communication Develop unit, integration, and end-to-end testing strategies for backend systems Design and implement end-to-end system architecture in collaboration with cross-functional teams Integrate services using REST APIs, GraphQL, and WebSockets Participate in performance tuning, scalability improvements, and system optimization Integrate AI/LLM-based solutions using OpenAI / Azure AI services Develop AI workflows using frameworks such as LangChain or similar agent-based tools Apply prompt engineering techniques and optimize model interactions for production use cases Orchestrate multiple AI models and services to deliver real-world intelligent features Apply security and privacy best practices across the full stack Ensure adherence to secure coding standards and maintain high code quality through code reviews and automated testing Collaborate closely with engineering teams to ensure consistency, reliability, and scalability of solutions Competence demands: Minimum 5+ years of experience as a Fullstack or Software Engineer Strong experience with React / Next.js and TypeScript in production-grade applications Strong proficiency in Python (async programming) and FastAPI Experience designing scalable distributed systems and APIs Solid understanding of frontend architecture, performance optimization, and state management Experience with testing frameworks (Playwright, Vitest, React Testing Library, pytest or similar) Familiarity with REST, GraphQL, and WebSockets Hands-on experience integrating AI/LLM services (OpenAI, Azure AI, or similar) Knowledge of agent frameworks such as LangChain or similar tools Strong understanding of system design principles and software architecture Experience working in Agile environments and cross-functional teams Strong communication skills and ability to work in a distributed team Fluency in English (written and spoken) We offer: Remote working model Dynamic and innovation-driven engineering environment Full-time job agreement based on b2b Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance Recruitment process: Introductory call Technical interview Final decision