Database Reliability Engineer

Location: Global

Team: General

About the Role

Wise is a global technology company revolutionizing how the world moves and manages money with min fees, max ease, and full speed. As a Database Reliability Engineer in our Database Reliability Engineering (DBRE) team, you'll be a core owner of the Wise database estate that powers every transaction and customer experience. Your mission is to empower our growth by engineering reliable, scalable, and performant database solutions using PostgreSQL, MariaDB, MongoDB, and Redis/Valkey. You'll collaborate closely with Database Platform and Product Engineering teams, applying sound engineering principles to automate infrastructure, establish best practices, and build guardrails that keep customer data safe. With a strong platform engineering mindset, deep database knowledge, and automation skills, you'll drive observability, capacity planning, and performance tuning in a 24/7 production environment. If you're passionate about PostgreSQL and eager to learn, join us in creating a new network for the world's money—for everyone, everywhere. Starting salary: £65,000-£85,000 per annum + RSUs. Enjoy flexible working, DEI focus, and Wise benefits in a truly international team.

Key Responsibilities

• Own and maintain the Wise database estate (PostgreSQL, MariaDB, MongoDB, Redis/Valkey)
• Engineer reliable, scalable, and performant database solutions at scale
• Collaborate with Database Platform and Product Engineering teams
• Apply automation and Infrastructure as Code (IaC) principles using Terraform or Ansible
• Establish best practices and guardrails for database security and reliability
• Perform capacity planning, observability, and performance tuning
• Empower Wise's growth through database infrastructure enhancements
• Build tooling to support self-service for engineering teams

Required Qualifications

• Proven experience managing large-scale, highly available PostgreSQL deployments in a 24/7 production environment
• Proactive approach to system reliability, observability, and capacity planning
• Deep understanding of PostgreSQL internals, replication, and performance tuning
• Demonstrable expertise in database administration, security, and reliability best practices

Preferred Qualifications

• Exposure to distributed database technologies (e.g. YugabyteDB, CockroachDB, TiDB)
• Experience working with Redis/Valkey, MongoDB and/or MariaDB/MySQL
• Experience in building self-service tooling for engineers, analysts or data scientists
• Knowledge/interest in payment platforms, foreign exchange & highly complex systems
• Be a customer of Wise

Required Skills

• PostgreSQL internals, replication, and performance tuning
• Database administration and security best practices
• System reliability and observability
• Capacity planning for large-scale databases
• Automation-first mindset and scripting
• Infrastructure as Code (Terraform or Ansible)
• Cloud platforms (AWS or GCP) services and APIs
• Scripting or software development (Python or Go)
• Platform engineering mindset

Benefits

• RSUs (stock options)
• Flexible working
• Me days and mission days
• Paid sabbatical after 4 years
• Learning budget
• Health insurance
• Company retreat
• Wise card

Wise is an equal opportunity employer committed to building a diverse workforce.