Senior Software Engineer - Platform & Infrastructure

Your role We are a leading SaaS provider in our field and operate a large number of customer environments in our cloud. To ensure that these environments run smoothly, we are looking for you! Together with your colleagues on the Platform & Infrastructure team, you will be responsible for the scalability, security, and efficiency of our cloud infrastructure — covering AWS, Kubernetes, observability, and the internal developer platform that our product teams build on. We ship continuously — on average 150 deployments to production every month — and your work is what keeps that pace fast, safe, and sustainable. You will actively contribute to shaping our technical roadmap, mentor engineers around you, and help cultivate a progressive and learning environment. Your mission Own and evolve our Kubernetes platform across multiple clusters: manage Helm chart deployments via an OCI registry hosting 40+ charts, enforce policy-as-code with Kyverno, and operate GitOps workflows through Argo CD ApplicationSets with progressive delivery orchestrated by KargoDrive technical designs for platform initiatives: scope the problem, propose multiple solutions, assess their trade-offs, and defend your recommendation — then see it through to productionHarden the platform's security posture: workload identity via OIDC, runtime security, image scanning and secrets managementWrite and maintain custom Kubernetes operators and internal tooling in Go and Python that multiply the team's leverage across clusters — we run Zalando postgres-operator alongside our own operatorsMaintain and improve our observability stack (Prometheus, Grafana, Thanos, OpenSearch): build dashboards and alerts that give product teams real visibility into their servicesKeep GitLab CI/CD pipelines fast and reliable — they power ~150 production deployments per month; execute cross-team changes (rollouts, database migrations, certificate rotations) with care and clear communicationOperate and evolve AWS infrastructure (EKS, VPC, IAM, RDS, S3) including dedicated customer environments in their own AWS accounts; drive cost-efficiency initiatives tracked via OpenCostOwn incidents end-to-end: from alert to fix to postmortemRaise the team's bar through thorough code and architecture reviews, mentor less experienced engineers, and help us assess technical candidates in interviewsBe the infrastructure partner product teams come to when things are unclear or brokenParticipate in a shared on-call rotation Your profile Must-have 5+ years of professional engineering experience, including 3+ years in infrastructure, platform, or site reliability engineeringDeep hands-on experience with Kubernetes: cluster operations, workload management, troubleshooting at scaleHelm chart authoring: writing, packaging, and maintaining charts — not just consuming themGitOps experience with Argo CD or an equivalent tool (Flux, etc.)Working knowledge of AWS (EKS and supporting services such as IAM, VPC, RDS, S3)Experience with Infrastructure as Code (Terraform or equivalent)Proficiency in Go or Python — we write custom operators and internal tooling in bothExperience owning production incidents end-to-end — response, mitigation, and postmortemStrong English communication skills, with the ability to explain technical decisions to both engineers and non-technical stakeholders Nice-to-have Kubernetes operator development experience (Kubebuilder or similar)Progressive delivery tooling (Kargo, Argo Rollouts, or equivalent)Policy-as-code experience (Kyverno or OPA)Runtime security tooling (Falco or equivalent)Familiarity with observability tooling (Grafana, OpenSearch/Elasticsearch, or equivalent)Experience with CI/CD pipelines (GitLab CI preferred)Experience mentoring engineers or participating in technical hiringGerman language skills (helpful for customer site interactions) On-Call You'll participate in an on-call rotation. Incidents require fast response and clear communication. On-call burden is tracked and addressed through rotation and capacity planning. Perks & Benefits Join our team and simply be yourself – we celebrate diversity! Our entrepreneurial culture is driven by a talented and passionate team. We offer full flexibility to suit your needs, whether you prefer working remotely, in the office, or in a hybrid setup. And if you'd like to work from abroad, you can do so for up to 180 days. But that's not all! We also provide a competitive compensation package and 30 days of paid vacation to help you recharge. And with a generous tech budget, you can choose the hardware and software that suits you best. Flexible working arrangements (remote, office, or hybrid)Modern office in the heart of Hanover for hybrid workUp to 180 days (6 months) of remote work from abroadCompetitive compensation with benefits offering30 days (6 weeks) of paid vacationModern hardware and software solutions About Our Principles Ambitious, promising, and always on the move: that's SYNAOS. We are a team of around 100 people from more than 15 nations, ranked among the top employers of 2,500+ German startups. We stand together and work toward the same goal: to revolutionize an entire industry. Our platform runs production-critical operations 24/7 for customers like Volkswagen, shipping to production around 150 times a month — and we take security seriously: we are ISO 27001 certified and a TISAX participant. Can you identify with our principles? We go above & beyond for our customersWe always push forwardWe make informed decisionsWe challenge each other and win togetherWe seize ownershipWe make bold moves Contact person SYNAOS GmbH Liane Hagelganz join-us@synaos.com About Us SYNAOS is transforming Intralogistics. SYNAOS is at the forefront of advancing automation and digitalization in intralogistics. The intralogistics software company from Hanover directly influences how goods are manufactured in factories and moved in warehouses. Our intelligent and scalable SaaS solution, the Intralogistics Management Platform (IMP), automates intralogistics processes and orchestrates complex material flows in production sites and logistics centers. With us, you have the opportunity to join and shape the rapid development of a deep-tech software scale-up from Germany. We place great emphasis on teamwork and innovation, providing a motivating and flexible work environment that fosters creativity and collaboration. Working at SYNAOS is more than just a job — you will be at the forefront of technological progress in the intralogistics industry. If you resonate with our vision and want to actively shape the future of intralogistics, we should talk!