Summary: We are seeking a Senior Fullstack Developer (Golang + React) to take full ownership of architecture and quality, designing high-performance services and crafting intuitive interfaces. Highlights: 1. Design and implement high-throughput APIs within the Go ecosystem 2. Build reusable, strictly typed components using React and TypeScript 3. Drive engineering excellence through rigorous Code Reviews, TDD, and mentoring **Hi there!** We are STX Next, a global IT consulting company specializing in customer\-focused software services. Join a group of 500 professionals dedicated to helping customers build outstanding products. Leveraging the latest advancements in the field, and a passion for innovation, we're shaping the future of technology one project at a time. **Are you the NEXT one?** **Type of contract** A B2B contract for your flexibility and competitive compensation package **Location** A remote work model encouraging work\-life balance. **Job description** ------------------- We are looking for an experienced Senior Fullstack Developer (Golang \+ React) who doesn't just "write code" but takes full ownership of the architecture and quality of our stack. You will be responsible for designing high\-performance Go backend services and crafting intuitive, scalable React interfaces, ensuring seamless synergy across the entire end\-to\-end solution. **Responsibilities** -------------------- **Your core challenges:** ------------------------- * Architect \& Scale: Design and implement high\-throughput APIs (REST/gRPC) within the Go ecosystem. * Modern Frontend: Build reusable, strictly typed components using React and TypeScript. * Performance Engineering: Optimize systems for low latency and high concurrency (Go routines, memory management, frontend rendering). * Technical Leadership: Drive engineering excellence through rigorous Code Reviews, TDD, and mentoring within the team. **Requirements** ---------------- **Must\-have** -------------- * Senior\-level Expertise: 5\+ years of commercial experience in web application development. * Gopher Mindset: Deep understanding of Golang, including concurrency patterns (goroutines/channels) and the latest features (Generics). * TypeScript Mastery: We believe in type safety; you should be proficient in building complex React apps with TypeScript. * System Design: Strong grasp of distributed systems, microservices architecture, and database optimization. * Software Craftsmanship: A "test\-first" approach (Unit/Integration) and a commitment to SOLID principles and Design Patterns. * Communication: Minimum B2 English proficiency and the ability to articulate technical decisions clearly to both technical and non\-technical stakeholders. **Nice to have:** ----------------- * Hands\-on experience with gRPC and Protocol Buffers. * Familiarity with message brokers (Kafka, RabbitMQ). * Experience with Infrastructure as Code (Terraform, Pulumi). * Proficiency in GraphQL. **Tech Stack** -------------- * **Backend**: Go (Gin/Echo), Go Generics, SQL (PostgreSQL), Redis, NoSQL (MongoDB). * **Frontend**: React 18\+, **TypeScript (Essential)**, State Management (Zustand/TanStack Query). * **Infrastructure**: Docker, Kubernetes, CI/CD pipelines, AWS/GCP. * **Methodology:** TDD, Clean Code, Agile/Scrum. **Benefits** ------------ **Remote\-First Flexibility** Work from where you feel most productive. We offer a remote\-first environment with the freedom to set your own schedule in coordination with your team. Whether you need a midday break or a specific routine, we trust you to manage your time and deliver results while maintaining your personal well\-being. **Reimbursed private medical care** We care about the health and well\-being of our colleagues. Choose a sports card and dedicated medical care for yourself and your relatives. **Leader’s support** Work with true enthusiasts and professionals who will support you along the way. You can count on leaders and experts who are willing to share their knowledge so that you too can join their ranks someday. **Technology focus** Python and JavaScript are not our only strengths, we are also very good at React Native, IoT, Machine Learning, .Net, DevOps and Blockchain. **Growth review** Junior, Regular or Senior? Every year we have a chance to discuss acquired skills and prepare a development plan for upcoming months. **Events** Attend exciting internal webinars, celebrate special days with us, and join us at conferences and meetups as a listener or speaker! **Workation** Team trips where you have a chance as a team not only to work together, but also integrate f2f.