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Salary
$69k – $138k per year (Estimated)
Location
Remote/Hybrid (Berlin, Germany)
Seniority
Senior · 5+ years exp
Employment
Full-Time
Overview
Company
Impact
Profile match
Ostrom is a Berlin energy company founded in 2020 that sells digital-first electricity contracts. Its app offers monthly cancellable green tariffs and dynamic pricing linked to the wholesale market, which suits electric vehicle and heat pump owners. The company built its own billing and customer platform rather than using utility legacy systems.

We are on the mission to build Europe’s leading energy management platform to provide fair, clean energy to everyone.

We’re a diverse team of 50+ employees, with 46% being female and from 16+ nationalities, and steadily growing. Having raised of over €40 M in total, we are looking for passionate people to join us on our mission!

Wir haben eine klare Mission: Wir bauen Europas führende Plattform für Energiemanagement, um faire und saubere Energie für alle zugänglich zu machen.

Unser Team ist vielfältig - wir sind über 50 Personen aus mehr als 16 Nationalitäten, mit einem Frauenanteil von 46 %. Und wir wachsen weiter!

Mit über 40 Mio. € an Finanzierung suchen wir nach motivierten Menschen, die gemeinsam mit uns die Energiezukunft gestalten wollen.

About the Role

We are looking for a Senior DevOps Engineer to take ownership of our cloud infrastructure and help evolve a modern AWS-based platform. You will work on reliability, observability, automation, security, and CI/CD - and occasionally support backend engineers with troubleshooting or small contributions to our backend services.

This role is ideal for someone who enjoys building scalable systems, improving developer workflows, and driving technical excellence across a growing engineering team.

What You Will Do

  • Own and improve AWS infrastructure across staging and production environments.

  • Build, maintain, and standardize Infrastructure-as-Code using Terraform.

  • Manage and optimize containerized workloads on ECS Fargate.

  • Strengthen observability: metrics, dashboards, alerting, and logging.

  • Improve CI/CD pipelines using GitHub Actions.

  • Enhance IAM, secrets management, and overall cloud security posture.

  • Perform maintenance of databases running on RDS (Postgres, MySQL).

  • Support backend teams with debugging, migrations, or small changes in Node.js/NestJS when needed.

  • Drive automation, reliability, and scalability across the platform.

What We’re Looking For

Core Technical Skills

  • AWS Expertise, including but not limited to:

    • VPC (subnets, routing, NAT gateways, ALBs, security groups)

    • Route53

    • ECS (Fargate)

    • Lambda

    • RDS (MySQL/Postgres)

    • SQS/SNS

    • CloudWatch

    • S3

  • Strong experience with Terraform.

  • Deep understanding of AWS networking and secure infrastructure design.

  • Experience operating RDS (backups, upgrades, failovers, troubleshooting).

  • Hands-on CloudWatch experience (metrics, dashboards, Logs Insights, alarms).

  • Good understanding of event-driven systems (SQS, SNS, Lambda triggers, retries, DLQs).

  • Strong proficiency with Docker and containerized deployments.

  • Experience with GitHub Actions and modern CI/CD workflows.

  • Programming skills in Typescript, Python or Golang.

  • Experience setting up a monitoring stack.

Additional Desired Experience

  • Experience with Docker image hardening and optimization (multi-stage builds, non-root users).

  • Familiarity with API gateways or automating OpenAPI specifications.

  • Experience integrating SSO/SAML/OIDC for cloud and internal tools.

  • Experience improving secrets management.

  • Familiarity with secure file transfer mechanisms (SFTP/SSH key setups).

  • Experience with distributed backend architectures (microservices, event-driven, multi-service systems).

Who You Are

  • Have 5+ years of experience as a DevOps Engineer.

  • You take ownership and think long-term.

  • You are systematic, structured, and pragmatic.

  • You communicate clearly and proactively.

  • You collaborate easily with backend engineers and product teams.

  • You bring calmness and maturity during incidents and debugging.

  • You are able to quickly learn new technologies and apply them to solve problems.

About Us

We’re Germany’s fastest-growing digital green energy provider and a Certified B Corp™ , driving the energy transition by making renewable energy more accessible and inclusive.

How? Through variable tariffs, dynamic pricing, smart EV charging, heat pump and solar optimization, and Germany’s first virtual power plant: NeoGrid™.

At Ostrom, you’ll work in a dynamic, open environment where you can be yourself, take on challenges, and grow both personally and professionally.

Environmental Impact: Each customer who switches to Ostrom on average helps offset 1.5 tons of CO2 emissions per year compared to the average German energy mix.

VSOP: On top of offering a competitive salary you will have access to company shares to ensure you can truly be part of the journey.

Trust-based Team: A truly flat hierarchy and transparent company culture, where everyone’s voice matters.

Benefits: An annual learning budget, company-pension scheme, company events, discounted USC membership, discounted BVG public transport ticket, e-bike or e-moped, exclusive discounts via FutureBens or monthly vouchers - the choice is yours.

Stay In The Loop: We believe in transparent communication - from weekly town halls and quarterly updates to regular retrospectives. Got feedback or an idea? We’re all ears.

Work Together, Celebrate Together: We thrive on collaboration. Wins are shared and so are the celebrations from monthly happy hours to team trips and company events.

Work Your Way: Whether you prefer the office, your home desk, or a sunny spot in Sardinia - you work where you work best.

Learn By Doing: We grow together with personal development paths, learning budgets, and regular knowledge-sharing sessions. Try things out, learn along the way, and keep moving forward.

Über Uns

Wir sind der am schnellsten wachsende digitale Ökostromanbieter mit B Corp™ Zertifizierung in Deutschland - und treiben die Energiewende aktiv voran. Unser Ziel: Erneuerbare Energie für alle zugänglich und inklusiv machen.

Wie? Mit variablen Tarifen, dynamischem Strompreis, Smart EV Charging, Optimierung von Wärmepumpen und Solaranlagen sowie Deutschlands erstem virtuellen Kraftwerk: NeoGrid™.

Bei Ostrom arbeitest du in einem offenen, dynamischen Umfeld, in dem du du selbst sein kannst, Herausforderungen annimmst und dich kontinuierlich weiterentwickelst.

Nachhaltigkeit, die zählt: Mit deinem Wechsel zu Ostrom unterstützt du aktiv die Energiewende. Unsere Kund*innen helfen im Schnitt, jährlich 1,5 Tonnen CO₂ gegenüber dem deutschen Durchschnittsstrommix einzusparen.

Wertschätzung, die sich auszahlt: Neben einem attraktiven Gehalt erhältst du bei uns VSOPs - Unternehmensanteile, mit denen du direkt am Erfolg von Ostrom beteiligt bist.

Teamkultur auf Augenhöhe: Bei Ostrom leben wir flache Hierarchien und eine offene Feedbackkultur. Deine Meinung zählt - vom ersten Tag an.

Benefits: Du erhältst ein flexibles Paket mit vielen Extras - von einem jährlichen Weiterbildungsbudget, über eine betriebliche Altersvorsorge, bis hin zu einer vergünstigten USC-Mitgliedschaft, einem vergünstigten BVG Jobticket oder deinem eigenen E-Bike bzw. E-Roller und sowie Rabattcodes über FutureBens. Alternativ wählst du monatliche Gutscheine - du entscheidest, was dir wichtig ist.

Transparenz: Ob in wöchentlichen Townhalls, vierteljährlichen Updates oder offenen Retrospektiven - wir glauben an klare Kommunikation und kontinuierlichen Austausch.

Erfolge feiern wir gemeinsam: Teamarbeit steht bei uns im Mittelpunkt - und genauso feiern wir auch unsere Erfolge: mit regelmäßigen Happy Hours, Team-Ausflügen und unvergesslichen Company Events.

Work you way: Ob im Berliner Büro, im Homeoffice oder remote unter der Sonne - bei uns arbeitest du dort, wo du am produktivsten bist.

Wachse mit uns: Persönliche Entwicklung ist bei Ostrom keine Floskel. Wir unterstützen dich mit Lernbudgets und Raum zum Ausprobieren - damit du dich fachlich und persönlich kontinuierlich weiterentwickeln kannst.

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