Senior Site Reliability Engineer
Our SRE teams are dealing with a range of different challenges, from managing our services that keep Bolt backend services running to optimizing our cloud infrastructure. The SRE Database Reliability team plays a foundational role across all Bolt’s business verticals, directly impacting the quality, resilience, and performance of all services and product lines at scale. Working with a cutting-edge distributed database stack, the team operates in a high-load, high–data-volume environment where each member can make a significant, company-wide impact.Location: Tallinn, Estonia
About the role
As a Senior Site Reliabiity Engineer at Bolt you will lead the design, implementation, and maintenance of highly reliable and scalable systems infrastructure, collaborating with cross-functional teams to ensure system reliability, performance optimization, and continuous improvement.
Main tasks and responsibilities:
Leading the design, implementation, automation and maintenance of highly reliable and scalable Database Systems infrastructure. Planning for future database growth and scalability, ensuring the architecture supports business needs.
Participating in on-call activities for the most critical parts of the infrastructure, helping to solve incidents in a no-blaming culture.
Performing Root Cause Analysis (RCA) and leading incident response by compiling thorough postmortems and implementing preventive measures. Identifying performance bottlenecks and inefficiencies in the system and implementing solutions to optimize database configurations and performance, including SQL queries and indexes optimization.
Ensuring all core services are properly measured, monitored, and covered by alerting systems.
Work closely with engineering teams to design efficient schemas, perform query reviews, and provide guidance on database best practices.
Enforcing security best practices, managing access controls, and ensuring compliance with data governance policies and industry standards.
About you:
You have proven track record in systems engineering.
Solid experience with Relational Database Management Systems (e.g. MySQL). Knowledge of NewSQL and NoSQL Databases is beneficial.
Strong Linux troubleshooting expertise (including networking, file systems, security and the kernel), as well as a solid understanding of large-scale distributed systems.
Proficient coding skills (preferably Python, Go, Rust or Bash), along with experience in cloud platforms (e.g., AWS) and infrastructure automation tools such as Terraform and Ansible.
Good understanding of DevOps practices and Agile (e.g., Scrum) way of working.
You are a team player with a high level of empathy and good communication skills, who works well with others in the group and the rest of organization.
At Bolt, using AI daily is a baseline expectation for everyone. If there’s a faster, smarter way to do your work, we expect you to find it. You’re still responsible for the output, so the standard stays high when using AI tools.
Experience is valuable, but what we really look for is drive, intelligence, and integrity — so if you don’t tick every box, apply anyway.
Apply now and join us to make cities for people, not cars.
Become part of our Engineering team
*Some perks may differ depending on your location.
Why you’ll love it here:
Our engineers are at the forefront of innovation within some of the largest industries in the world. Are you up for the challenge?
Accelerate your professional growth with unique career opportunities.
Enjoy a rewarding salary and stock options, knowing that as Bolt succeeds, so do you.
Take care of your physical and mental health with our wellness perks.
Celebrate 5 years at Bolt with a 1-month paid sabbatical to recharge.
Connect with colleagues at annual company events and smaller team gatherings.
Balance flexibility and in-person collaboration with our hybrid model, including at least 12 monthly in-office days.
About us
With over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and Africa. And it's all thanks to our people.
We believe in creating an inclusive environment where everyone is welcome, regardless of race, colour, religion, gender identity, sexual orientation, age, or disability.
Our ultimate goal is to make cities for people, not cars, and we need your help to achieve this mission!
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