Senior Cloud and Backend Engineer - Zyntai (5G Sync)

Pinetree AB

Build systems that manage thousands of time nodes in real-world 5G networks Net Insight, are building building Zyntai — a distributed platform that keeps telecom networks precisely synchronized. Today, the system supports roughly 2000 time nodes generating ~500,000 metric points per second, and the scale continues to grow. We’re looking for a Senior Cloud & Backend Engineer who wants to take ownership of complex systems and work close to both product and customers. The role You’ll join our Sync R&D organization (around 15 engineers) and be part of a team of 5 responsible for the backend platform behind Zyntai Director. Your work will include: Building and extending backend services and APIs (Node.js / TypeScript) Designing systems that scale to larger distributed networks Improving performance and reliability in metrics-heavy systems Adding new capabilities such as IPv6 support Investigating customer-reported issues and production bugs Supporting customer PoCs together with Tech Sales Collaborating with product owners on upcoming features Some days focus on feature development. Others on debugging real production issues. Both are core parts of the role. Ownership and responsibilities At Net Insight, there is no separate architecture department. Engineers are expected to take responsibility across the full lifecycle — from design and development to testing, troubleshooting, and continuous improvement. You won’t just implement solutions — you’ll help define them. Tech environment You’ll work in a modern cloud-native environment including: Node.js / TypeScript Kubernetes AWS Distributed systems Observability and metrics-heavy platforms API and networking-related functionality We are also investing heavily in AI-assisted development to improve both engineering workflows and future product capabilities. How we work We use Scrum/Kanban with daily standups and close collaboration across teams. The Sync organization operates like a startup within the company, with tight cooperation between R&D, Product, Sales, and Tech Sales. Engineers are often close to customers, supporting PoCs and helping resolve real-world issues. About you You are likely a senior engineer who enjoys solving complex problems and taking ownership beyond your own code. You probably have experience with: Backend development in production environments Distributed systems and scalability challenges Cloud platforms such as AWS, GCP, or Azure Designing reliable and maintainable systems Experience with Kubernetes, networking concepts, or large-scale metrics systems is beneficial. Why this role This role offers: Real engineering challenges at scale Broad responsibility across design, development, and operations Close collaboration with customers and product teams A startup-like environment within an established company Small teams with meaningful ownership WELCOME TO APPLY The position is permanent, full-time employment located at the headquarters in Solna. Net Insight values work-life balance; therefore, you can combine remote work and work from the office. Collective agreement with IT&Telekom, great compensation and benefits. ABOUT NET INSIGHT Net Insight is a pioneering technology company that powers large-scale live broadcast events, connecting millions of viewers globally. Since 2021, they have established a rapidly expanding solution area focused on Synchronization. Leveraging their patented TV distribution synchronization technology, the Zyntai product portfolio is designed for nationwide 5G and power networks. Net Insight is a global leader in media networks, resource optimization, and streaming solutions. More than 500 world-class customers run mission-critical media services using Net Insight’s solutions in more than 80 countries worldwide. ABOUT PINETREE At Pinetree, we have a vision and mission to differentiate ourselves from the crowd and are Sweden's contenders in talent search and matching. By working as an agency, the value to you as an employee is that we have a very wide network of partner companies that we continuously ensure high-quality standards. This recruitment is a direct employment at Net Insight AB and all applications, questions, administration, and recruitment process is managed by Pinetree AB.

Anyfin AB

Anyfin is building the next generation of consumer finance. We’re profitable, scaling quickly and now operating with a banking license which opens up a lot of technical complexity. We’re looking for a senior cloud engineer who enjoys moving fast, taking real ownership and building systems that actually have an impact. If that sounds like your kind of environment, keep reading. Because honestly, it’s not a role for everyone. Small team, high responsibility We hire carefully. We’re not a company that grows by adding headcount everywhere, we grow by keeping the bar high and building a team where every person matters. This isn’t a place where you disappear into a big org. If you join, you’ll have real influence on what we build and how we build it. What you’ll do Designing, deploying and operating cloud infrastructure and services on GCP to support scalable and reliable systems. Building, optimizing and scaling backend systems with a cloud-first mindset, using Node.js and SQL (Postgres). Contributing to system architecture to ensure cloud scalability, reliability and maintainability of financial systems. Collaborating closely with cross-functional teams to shape both product direction and business strategy. Sharing cloud and infrastructure expertise with the team while promoting best practices. Our main stack is TypeScript, Node.js, React, React Native running on Google Cloud Platform. How we think about building We’re pragmatic. We like speed, but we also care about building things that last. AI isn’t a side tool here. It’s embedded in how we work helping engineers move faster, reduce friction and focus on solving meaningful problems. We’re looking for engineers who are curious about that shift and want to be part of it, rather than people who feel like good engineering means doing everything the hard way. No ego. Just good judgment and high output. You’ll thrive here if you… Have solid experience building backend systems with cloud-first practices and working with cloud platforms such as GCP, AWS, or Azure. Care about craftsmanship, performance and reliability in the systems you build. Take responsibility naturally and don’t wait to be told what to do. Enjoy messy problems and figuring things out as you go. Like being in an ambitious and collaborative team. Want to build, not just maintain. You’re comfortable with things like: Strong background in cloud infrastructure and backend development with Node.js and SQL databases (preferably Postgres). Experience in designing, deploying and monitoring solutions on major cloud platforms such as GCP, AWS, or Azure. At least 5 years of professional experience, ideally in high-stakes environments like finance. Passionate about solving complex backend and cloud problems with clean, pragmatic solutions. Solid understanding of system design and architecture. Bonus if you’ve worked with React, Python, Go, GraphQL, Kubernetes, or DevOps with Github Actions. A few practical notes Stockholm based. EU work authorization required Why Anyfin? Because this is one of those moments where a company is about to level up: Banking license secured, expansion ahead and a lot to build. If you want to be part of a small, high-trust team doing meaningful work, we’d love to hear from you. Apply only if you want the responsibility that comes with real impact.

ASSA ABLOY AB

Build technology that protects people, places, and everyday life. Your work won’t sit quietly in a backlog. It will shape secure, connected solutions used around the world — and you’ll have the trust and freedom to do your best work along the way. Why this role matters At Assa Abloy, technology plays a direct role in creating a safer, more open world. As a Senior Backend Engineer, you’ll be part of teams building secure, scalable digital platforms that power smart access solutions globally. This is a role for someone who wants to own meaningful problems, contribute to technical direction, and work in an environment where quality, balance, and long-term thinking genuinely matter. The role You’ll work as part of a small, cross-functional team with shared end-to-end responsibility, collaborating closely to drive work from idea to delivery and continuous improvement. The team owns both the direction and execution, with a strong focus on improving our customers’ hospitality experience. In this role, you’re expected to take initiative and help move work forward, ensuring progress and alignment across disciplines. You’ll challenge assumptions, surface risks early, and contribute to sound technical decisions by bringing clarity, pragmatism and focus to complex discussions while helping the team deliver meaningful, high-quality outcomes. What you’ll work on Deliver meaningful features end-to-end — design, build, test, deploy, and evolve backend-focused services with a strong sense of ownership and quality. Build modern, scalable systems — develop primarily in Java, Kotlin, Golang, collaborating with frontend engineers and contributing where needed to React/TypeScript applications. Shape architecture and technical direction — apply Domain-Driven Design, Test-Driven Development, microservice and event-driven patterns to solve complex problems and raise the bar across the team. Lead cloud-native development — design and operate services on AWS, using containers, orchestration platforms, and serverless patterns to build resilient, future-proof solutions. Design data and system behaviour at scale — model data across NoSQL and relational systems, ensuring performance, reliability, and secure operation in distributed environments. Strengthen delivery and operational excellence — improve CI/CD pipelines, support production systems, and continuously refine engineering practices for long-term sustainability. What will help you succeed Solid senior experience (5+ years) building backend systems in cloud-native, distributed environments. Strong ownership mindset — you’re comfortable taking a feature from idea to production and standing behind your decisions. Architectural judgement — you know when and how to apply DDD, TDD, microservices, and event-driven design pragmatically. Hands-on cloud and DevOps experience — particularly with AWS, containerisation, CI/CD, and modern deployment models. Experience leveraging AI-assisted development tools and methods to enhance productivity, code quality, and system design. Clear, thoughtful communication and a willingness to mentor others. Why Assa Abloy At Assa Abloy, you’ll join a global organisation with a distinctly Scandinavian approach to work: trust over control, clarity over noise, and people over process. Meaningful mission — Your software helps protect homes, businesses, and communities around the world, contributing to solutions people rely on every day Innovation at scale — Work with modern cloud platforms, event-driven architectures, and evolving technologies in a global environment Autonomy and trust — You’re trusted to make decisions, influence design, and own your work from idea to impact Growth and development — Learn continuously, deepen your technical expertise, and explore opportunities across teams and borders Work–life balance — Flexible working, hybrid options, and a culture that supports sustainable performance Ready to build something that matters? If you’re looking for a senior developer role where your skills, judgement, and wellbeing are genuinely valued, we’d love to hear from you. Apply today and bring your expertise to a role where your decisions truly shape the future of smart access. We review applications continuously, so don’t wait. We’re committed to building diverse, inclusive teams and encourage applications from all who see themselves thriving here. To make sure your personal data stays protected, we do not review applications sent via email or post. If you have questions about the role or process, contact Léa Rein, Senior Talent Acquisition Business Partner. Let’s create a safer and more open world — together. We are the ASSA ABLOY Group Our people have made us the global leader in access solutions. In return, we open doors for them wherever they go. With nearly 63,000 colleagues in more than 70 different countries, we help billions of people experience a more open world. Our innovations make all sorts of spaces – physical and virtual – safer, more secure, and easier to access. As an employer, we value results – not titles, or backgrounds. We empower our people to build their career around their aspirations and our ambitions – supporting them with regular feedback, training, and development opportunities. Our colleagues think broadly about where they can make the most impact, and we encourage them to grow their role locally, regionally, or even internationally. As we welcome new people on board, it’s important to us to have diverse, inclusive teams, and we value different perspectives and experiences.