Senior Database Administrator

1 week ago

Cape Town, Western Cape, South Africa Luno Full time R120 000 - R180 000 per year
About us:

Luno is the crypto investment app you can rely on, enabling you to buy, store and explore crypto securely. We're committed to putting the power of cryptocurrency in everyone's hands sensibly and responsibly.

Since 2013, we've helped millions of people around the world invest safely in crypto. We do this by cutting through the hype and supporting customers at every step of the way. All products and cryptocurrencies on our platform must first meet stringent legal, risk and technical security standards.

Transparency is key for us. Luno stores all crypto on a 1:1 basis and we have rigorous processes in place so you can be confident your investment is secure. We're available in more than 40 countries around the world and we work closely with respective regulators in all of these markets to be fully compliant, as we believe this is the best way to help everyone, everywhere, invest safely.

About the team:

Our Site Reliability Engineering team builds and maintains the Luno platform, supports development teams and manages data infrastructure. Our platform is accessed by over 10 million customers in nearly 50 countries.
  • The SRE team collaborates with our engineering teams to build tools and scalable shared infrastructure that is the backbone of the Luno platform.
  • We champion reliability, observability, automation and consistency throughout the engineering organisation.
  • Data is the lifeblood of our platform and as such the reliability, security and performance of our data platform is mission critical.
  • We're agile, use scrum, continuous integration and continuous delivery, deploying to production every single day.
Your mission will be:
  • Design, implement, and maintain high-availability database clusters using technologies such as Aurora MySQL / PostgreSQL ensuring 99.99% uptime across production environments
  • Architect and manage robust data replication strategies, implementing both synchronous and asynchronous replication solutions while maintaining data consistency and integrity across multiple data centers
  • Drive cost optimization initiatives through capacity planning, resource utilization analysis, and implementation of efficient storage strategies, resulting in measurable infrastructure savings
  • Monitor and tune database performance using advanced diagnostic tools, query optimization techniques, and performance metrics to maintain response times within SLA requirements
  • Design and execute comprehensive disaster recovery testing programs, including regular failover drills and recovery time objective (RTO) validation
  • Develop and maintain automated backup solutions with point-in-time recovery capabilities while ensuring compliance with data retention policies and regulatory requirements
  • Implement robust security measures including encryption at rest and in transit, audit logging, and role-based access control (RBAC) aligned with zero-trust security principles
  • Collaborate with development teams to optimize database design, improve query performance, and provide data modeling expertise
A little about you:
  • Friendly, transparent, articulate and driven to succeed.
  • Good skills and knowledge of collaborative leadership, facilitation, situational awareness, conflict resolution, empowerment, and increasing transparency.
  • Track record of solving complex scaling problems with a focus on reliability and security.
  • Track record designing and implementing innovative solutions that improve operational efficiency and minimise toil.
  • A diverse toolkit of techniques to help drive continuous improvement i.e. contribution to the open-source community, training and certifications, regular attendance at conferences and meetups where you continue to advance your data engineering skills and techniques.
It's completely OK if you don't tick all of the boxes - they're a guide based on what we'd love to see, but we appreciate that excellent engineering leaders have diverse backgrounds.
What stack will you be working on:
  • Amazon Web Services
  • Amazon Aurora (MySQL/PostgreSQL)
  • Amazon ElastiCache (Redis/Valkey)
  • Amazon DynamoDB
  • Amazon Redshift
  • Amazon RDS Proxy
  • Databricks
  • Looker
  • Amazon OpenSearch
  • Amazon Database Migration Service
  • Terraform
  • Kubernetes
  • Prometheus, Grafana & Kibana
Life at Luno:
  • Remote but reachable work policy gives you the freedom to choose between working from home or the office.
  • Plus the option to buy and sell up to 5 days leave
  • Improve body and mind, with excellent private medical insurance
  • Access to Learnably and our additional learning platforms for your personal and professional development
  • 6 months primary care-giver leave
  • Paw-ternity leave for your furry friend
  • Annual Inspiration Day in addition to your annual leave which increases based on your length of service
  • A collaborative, friendly work community, with regular social events and virtual cooking, dancing, drawing and house planting classes hosted by our Lunauts
  • Free lunch and snacks
  • 0 fees up to a certain amount with Luno from the day you start.*
*Offer only available on Luno Instant Buy, not Luno Exchange

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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