Senior Software Engineer, Platform & Infrastructure (all genders)

We are a leading Saa S 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.

• 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 Git Ops workflows through Argo CD Application Sets with progressive delivery orchestrated by Kargo
• Drive technical designs for platform initiatives: scope the problem, propose multiple solutions, assess their trade-offs, and defend your recommendation — then see it through to production
• Harden the platform's security posture: workload identity via OIDC, runtime security, image scanning and secrets management
• Write 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 operators
• Maintain and improve our observability stack (Prometheus, Grafana, Thanos, Open Search): build dashboards and alerts that give product teams real visibility into their services
• Keep Git Lab 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 communication
• Operate and evolve AWS infrastructure (EKS, VPC, IAM, RDS, S3) including dedicated customer environments in their own AWS accounts; drive cost-efficiency initiatives tracked via Open Cost
• Own incidents end-to-end: from alert to fix to postmortem
• Raise the team's bar through thorough code and architecture reviews, mentor less experienced engineers, and help us assess technical candidates in interviews
• Be the infrastructure partner product teams come to when things are unclear or broken
• Participate in a shared on-call rotation
• Must-have
• 5+ years of professional engineering experience, including 3+ years in infrastructure, platform, or site reliability engineering
• Deep hands-on experience with
• Kubernetes : cluster operations, workload management, troubleshooting at scale

Helm chart authoring : writing, packaging, and maintaining charts — not just consuming them

• Git Ops 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 both
• Experience owning production incidents end-to-end — response, mitigation, and postmortem
• Strong 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 ,
• Open Search/Elasticsearch , or equivalent)
• Experience with CI/CD pipelines ( Git Lab CI preferred)
• Experience mentoring engineers or participating in technical hiring
• German 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.

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 work
• Up to 180 days (6 months) of remote work from abroad
• Competitive compensation with benefits offering
• 30 days (6 weeks) of paid vacation
• Modern hardware and software solutions

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 customers
• We always push forward
• We make informed decisions
• We challenge each other and win together
• We seize ownership
• We make bold moves
• SYNAOS Gmb H
• Liane Hagelganz join-us@synaos. com