Senior Front-end Developer

Zynca CRM AB

Zynca is building an ecosystem of recruiting and matching products, aiming to become the world's #1 choice for candidates and recruiters who are hungry for an 🔥 extraordinary product experience. While 🦕 other companies are releasing convoluted systems with broken features and frustrating interfaces, we are investing our hearts and souls into making sure that Zynca is taking care of everything for you, through smart automations and a world-class user experience that 🌟 simplifies every aspect of your work. In Q3 2026 Zynca will significantly scale up customer acquisition. To prepare for this, we're looking for the next person to take ownership of a core part of the company. 🚀 Senior Front-end Developer As our dedicated Senior Front-end Developer, you will own the frontend side of product flows, interface quality, component architecture, performance, accessibility and the details that make the product feel effortless to use. Rather than being a ticket-taking role, it's a strategic product-building role for someone who wants to shape how Zynca looks, feels and works as we scale. 🎯 The right fit We believe that the right fit for this role has owned frontend work in product-heavy environments before, probably in SaaS, marketplaces, platforms, HR tech, recruitment tech or another digital product where user flows, interface quality and performance matter. You understand how to turn product ideas and design decisions into fast, polished and maintainable user interfaces. You are strong in React, Next.js and TypeScript, comfortable working with APIs, design systems, accessibility, responsive layouts and the small frontend details that make a product feel clear and easy to use. You are senior enough to take responsibility for frontend architecture and technical decisions, but hands-on enough to build components, fix edge cases, improve flows, review details, ship features and make sure the experience holds together in production. You like working close to product and design, and you care about whether the product actually makes the user’s work easier. 💡 About the role What you'll be doing: Own the frontend area across Zynca’s product ecosystem Build and improve user flows, interfaces and reusable components Work closely with product, business and backend to ship features from concept to production Integrate frontend applications with APIs and GraphQL Improve performance, accessibility, responsiveness and overall interface quality Maintain and evolve our design system and component architecture Identify weak spots in the product experience and improve them before users have to complain Tech stack: React 19 - Latest React with server components, hooks, concurrent features Next.js 15 - App Router, server/client components, middleware, Turbopack TypeScript 5 - Strong typing, generics, utility types GraphQL - Apollo Client, queries/mutations, caching strategies, codegen Tailwind CSS 4 - Utility-first styling, tailwind-merge, tailwind-variants React Hook Form + Zod - Form handling with schema validation Design System - Mix of shadcn/radix and custom UI library 🥳 Company culture You will join a senior, hands-on company where people are expected to think, challenge, take responsibility and move things forward without waiting for permission. We work closely across product, sales and customer work. Feedback is direct, decisions are made quickly, and everyone is expected to care about the full customer experience, not just their own area. 🎉 Interested? Does this sound like the right role for you? If so, don't hesitate to apply! We'd love to hear from you! Öppen för alla Vi fokuserar på din kompetens, inte dina övriga förutsättningar. Vi är öppna för att anpassa rollen eller arbetsplatsen efter dina behov.

Hacksaw Studios AB

About us Hacksaw Studios is a Stockholm-based game studio focused on creating innovative, high-quality gaming experiences. With a focus on performance and precision, we bring ideas to life through technical expertise and creative collaboration. We have wide distribution, and our games are played by millions of people every month by players all over the world. We are now looking for a C# platform developer to join our growing Stockholm team. You'll be the person helping build and maintain the high-performance backend systems that power our games and platform infrastructure. You'll be solving real technical challenges that impact thousands of active users, collaborating closely with product teams, and helping ensure our platform is robust and ready for future growth. The Role Your key responsibilities include: Design & Implement Features: Build robust, scalable features for our C# / ASP.NET-based platform and supporting systems. Optimize Performance: Ensure code and data structures deliver high throughput, low latency, and reliable processing of thousands of transactions per second. Testing & Stability: Write and maintain comprehensive unit tests to ensure platform stability. Code Collaboration: Participate in code reviews and contribute to clean, maintainable, and well-documented code. Technical Documentation: Maintain clear and thorough technical documentation. Team Coordination: Work closely with peers and product teams to maintain architectural consistency and meet performance standards. What We’re Looking For Strong experience in C# backend development. Solid understanding of ASP.NET (experience preferred but can be developed on the job). Deep knowledge of SQL, including writing efficient queries and designing high-performance database schemas. Practical experience with caching strategies (e.g., Redis). Expertise in multithreaded programming and thread-safe design patterns. Proficiency in using the C# debugger for troubleshooting complex issues. A mindset focused on performance, scalability, and reliability. Nice-to-have: Experience with automated unit testing frameworks. A university degree in Computer Science or related field. Interest in gaming, professionally or recreationally. Experience with front-end development. Experience mentoring or coaching other colleagues. What We Offer A modern office in central Stockholm. Work with experienced, passionate colleagues in the gaming industry. The opportunity to create games with a global audience. Real influence, ownership, and personal growth opportunities. Wellbeing perks including wellness allowance and regular in-office massage. Practical Details This is an on-site position in Stockholm. Unfortunately, we cannot assist with relocation or visa sponsorship. Ready to Join the Game Makers? Apply now! We review applications on a rolling basis.

Redeploy AB

TL;DR → You design and build production-grade RAG and agentic AI systems end-to-end. From use-case definition through to a working interface in users' hands. → Consulting across the Nordics, with clients spanning industries from financial services to manufacturing. → You work in cross-functional delivery teams alongside Data Engineers and Platform Engineers, each owning a distinct layer of the stack. → Certifications without a debate. Colleagues who are obsessed with the craft. Freedom to grow your way. What you'll do As a GenAI Developer, you own the AI application layer end-to-end: the systems that ingest, retrieve, reason, and respond, plus the lightweight interfaces that put them in front of users. You're the person closest to the end customer. You turn a business problem into a working use-case, from gathering requirements and aligning stakeholders to shipping a production system people actually use. You come in before the solution is defined. Together with the client, you shape what gets built, then you build it. You work alongside Data Engineers and Platform Engineers, each owning a distinct layer of the stack. Your layer is where the model meets the business problem, and where the user meets the product. A few examples of what this looks like in practice: A production RAG system for a financial services client, letting internal teams navigate regulatory documentation using generative AI. From ingestion through to answer generation, quality evaluation, and a lightweight front-end for day-to-day use. An agentic AI solution in the FinOps space, applying LLM reasoning over infrastructure data to drive cloud cost optimization beyond what rule-based tooling can handle. AI capability building at enterprise clients: use-case workshops, requirements definition, and architecture advisory on agents and coding tools for senior technical audiences. The bar for what "done" means here is high: production-grade, observable, secure and used. What you get Assignments that accelerate you. Every 6–18 months you're in a new engagement. New industry, new architecture decisions, new stakeholders to earn trust from. You'll face more distinct technical challenges in two years here than most engineers see in five. Work that's hard to come by elsewhere. Agentic AI in enterprise environments is one of the most technically demanding spaces in the industry right now. The problems here aren't solved yet, and you'll be among the people solving them. Your direction, your call. Want to go deep technically and become the go-to person for enterprise AI architecture? Go for it. Want to lead client engagements, own stakeholder relationships and drive use-cases from discovery to production? Also go for it. Both paths are real and equally valued. People who make you better. The people here are genuinely passionate about technology, not as a job, but as something they care about. Engineers who go deep because they want to, follow the space obsessively, and get restless when things stop moving. That's what keeps Redeploy consistently ahead, and it's what you'll feel from day one. The perks. 30 days vacation · hybrid work and flexible hours · private medical insurance · pension (ITP1) · wellness allowance 5,000 SEK · free choice of tools and tech · free breakfast, soda and snacks · yearly gatherings and AW's · a team with genuine interests outside work — gaming, food, running, padel, golf, football, cycling. Who you are You care whether your AI systems actually work, not just whether they run, and you have an instinct for finding failure modes before they reach production. You care about how users interact with it, and you don't consider a use-case done until it's working end-to-end, interface included. You might come from a fullstack engineering or traditional ML/Data background. What matters is that you're already building AI solutions, whether that's a side project, a POC, or a deep dive into a new framework. Curiosity is a given. The question is whether you act on it. You like being close to the people who'll use what you build. You can run a requirements workshop, figure out what a stakeholder actually needs versus what they asked for, and explain why a retrieval pipeline is underperforming, all with the same clarity. What you bring Strong requirements engineering and stakeholder management skills, you can drive a use-case from problem definition to delivery, keeping technical and non-technical audiences aligned throughout Strong Python skills and solid software engineering fundamentals: clean code, testing, version control, system design Production experience with RAG architectures: chunking strategies, embedding models, vector search, hybrid retrieval, reranking, and retrieval evaluation Hands-on experience with agentic frameworks such as LangChain, LlamaIndex, AutoGen, or CrewAI, including tool use, memory management, and multi-agent orchestration Experience with Azure AI Services or Azure OpenAI, including integration across Azure services in production environments Ability to build lightweight front-end interfaces for AI applications to make prototypes and internal tools usable beyond the terminal Strong plus: multi-agent architecture design, front-end development skills (React, Streamlit, or similar), containerization and MLOps awareness, experience in regulated industries, Azure AI-102 certification, prior consulting experience, Swedish language skills. About Redeploy Redeploy is where cloud, data, and AI come together in production. We help Nordic enterprises design, build, and operate modern tech platforms and AI solutions that are secure, scalable, and production-ready. Engineers at heart, we work hands-on across Azure, AWS, and Databricks from strategy to operations.