Senior Software Engineer, Platform & Infrastructure (all genders)

Synaos; Hannover; Hybrid; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Flexible working arrangements

Office in Hannover

Up to 180 days remote from abroad

Competitive compensation

30 days paid vacation

Tech budget

Zusammenfassung

SYNAOS GmbH in Hanover, Germany is seeking an experienced Platform & Infrastructure Engineer to own and evolve our Kubernetes platform across multiple clusters. You will implement GitOps with Argo CD, manage Helm charts, enforce policy-as-code with Kyverno, and build Go/Python operators to accelerate production deployments.

You will optimize AWS EKS environments, security posture, observability stacks, and incident response while mentoring peers and shaping our technical roadmap.

Qualifikationen

• 5+ years in engineering with 3+ years in infrastructure/platform/SRE.
• Deep hands-on Kubernetes including cluster operations and troubleshooting.
• Experience with Helm charts and GitOps using Argo CD or similar.
• AWS knowledge (EKS, IAM, VPC, RDS, S3) and IaC (Terraform).
• Go or Python proficiency for operators and tooling.
• Production incidents ownership end-to-end and postmortems.
• Strong English communication for technical decisions.

Aufgaben

• Own and evolve Kubernetes platform across clusters with Helm charts and OCI Registry.
• Design platform initiatives, evaluate options, and drive production implementations.
• Harden security: workload identity, runtime security, image scanning, secrets mgmt.
• Develop Kubernetes operators and internal tooling in Go/Python.
• Maintain observability stack: Prometheus, Grafana, Thanos, OpenSearch.
• Keep GitLab/GitOps pipelines fast and reliable; coordinate cross-team changes.
• Manage AWS infra (EKS, VPC, IAM, RDS, S3); cost-efficiency initiatives.
• Lead on-call incidents end-to-end with clear communication.

Kenntnisse

Kubernetes

Helm charts

Argo CD

AWS

Terraform

Go or Python

Incident response

English communication

Tools

Kubebuilder

Kyverno

Argo Rollouts

Jobbeschreibung

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 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, OpenSearch): build dashboards and alerts that give product teams real visibility into their services
• Keep 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 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 OpenCost
• 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

Your profile

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
• GitOps 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, OpenSearch/Elasticsearch, or equivalent)
• Experience with CI/CD pipelines (GitLab 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.

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 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

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 customers
• We always push forward
• We make informed decisions
• We challenge each other and win together
• We seize ownership
• We make bold moves

Contact person

SYNAOS GmbH
Liane Hagelganz
[e-mail]