Senior Platform Engineer (Founding Infra & Data) (m/f/d)

Mako365; Mannheim; Hybrid; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Flexible work model

30 vacation days

Laptop & monitor

Headset & mouse

Office in Mannheim

Company bike (JobRad)

Deutschlandticket subsidy

Discount programs

Monthly vouchers

Referral bonuses

Zusammenfassung

Mako GmbH, a rising player in the new energy economy, seeks a Founding Platform Engineer to own our infra. You will tackle performance bottlenecks in the XtraDB data layer and JobRunr/Quartz orchestration while ensuring high availability in a Kubernetes-based SaaS.

Deliver proactive database tuning, improve persistence reliability, and shape our scale roadmap toward modern messaging systems. Hybrid work model with strong onboarding and growth opportunities.

Qualifikationen

• Experience tuning ProxySQL, XtraDB and MySQL query routing.
• Strong knowledge of JVM performance, HikariCP and Hibernate/JPA.
• Kubernetes proficiency with service discovery and graceful shutdowns.
• Infrastructure as Code with Helm to keep infra versioned.
• Observability with Prometheus and Grafana for golden signals.

Aufgaben

• Connection & Proxy Tuning: optimize Handshake between HikariCP, ProxySQL, and XtraDB to cut latency spikes.
• Database Contention: resolve row-level locks and long transactions in DB-backed queues.
• Hibernate Optimization: reduce noisy SQL and prevent long-held connections during bg processing.
• K8s & Orchestration: harden pod termination and scheduling to protect API stability.
• Scale Strategy: plan move to high-throughput messaging like NATS, RabbitMQ, or Redis.

Kenntnisse

ProxySQL & XtraDB

XtraDB locking

Hibernate/JPA

Kubernetes

JVM performance

Observability

Tools

ProxySQL

XtraDB

Kubernetes

Helm

Prometheus

Grafana

JobRunr

Quartz

Jobbeschreibung

This is who we are

Mako GmbH is a young company in the new energy economy. Our team supports (basic) energy supply companies, metering point operators, and energy service providers in optimizing their internal processes – through consulting, technology, and our own SaaS platform. With our innovative software solution, we have created an efficient, future‑oriented, and perfectly tailored tool to meet the challenges of the energy transition, especially for metering point operators and energy service providers.

The Mission

We are a team of 15 engineers scaling a K8s-based SaaS for enterprise clients. We’ve reached the stage where our feature velocity is being throttled by distributed systems complexity. We are looking for a Founding Platform Engineer to own our infrastructure, specifically focused on solving performance bottlenecks in our XtraDB/MySQL data layer and our JobRunr/Quartz orchestration.

What You’ll Solve Day One

• Connection & Proxy Tuning: Fine-tune the "Handshake" between HikariCP, ProxySQL, and XtraDB. You’ll optimize multiplexing, query routing, and connection pooling to eliminate latency spikes.
• Database Contention: Solve the locking issues inherent in our DB-backed job queues (JobRunr/Quartz). You’ll identify and resolve row-level contention and long-running transactions that block our XtraDB buffer pool.
• Hibernate Optimization: Partner with our backend teams to ensure Hibernate isn't generating "noisy" SQL or holding onto connections longer than necessary during background processing.
• K8s & Orchestration: Manage our cluster to ensure high availability. You'll harden our pod termination logic and resource scheduling to ensure that background workers don't impact API stability.
• Scale Strategy: Help us define the roadmap for when we move beyond DB-backed queues to high-throughput messaging (e.g., NATS, RabbitMQ, or Redis).

Your Technical Toolbelt

• ProxySQL & XtraDB Expert: You know how to configure mysql_query_rules and hostgroups. You understand XtraDB/InnoDB locking models and how to interpret PERCONA_RECAP or slow query logs.
• JVM Performance: You understand the HikariCP lifecycle and how Hibernate/JPA manages transactions. You can spot a connection leak or an unoptimized persistence context from a mile away.
• K8s Native: You live in kubectl. You understand how to map K8s service discovery to ProxySQL backends and how to handle graceful shutdowns in a containerized environment.
• Infrastructure as Code: Proficient in for example Helm to keep our infra versioned and "boring."
• Observability: You use Prometheus/Grafana to track the "Golden Signals" of both our application and our database proxy.

Benefits

• You can expect a permanent full-time or part-time position in an open and appreciative environment.
• To help you balance work and everyday life, we offer flexible working models combining remote work and office presence.
• For your work-life balance, you will receive 30 vacation days per year.
• We support you from day one with comprehensive onboarding and a regular range of training opportunities.
• To get you started, we provide you with a company laptop, a monitor for your home office, as well as a headset and mouse.
• In our ergonomic office space in Mannheim, you can enjoy fresh fruit, coffee, and free beverages.
• You are our priority: a company bike (JobRad), a Deutschlandticket subsidy, corporate benefits discounts, monthly vouchers, and referral bonuses are all part of our standard offering.

Diversity matters to us**:** We particularly welcome applications from women, non-binary individuals, and people with diverse backgrounds. What counts for us is your talent—regardless of gender, origin, or career path.

Do you have any questions? Feel free to reach out to us anytime.

Type of position: Full-time, Part-time, Permanent employment