DBA Architect

Salary range: B2B - 47-52 Euro + VAT 💰

Ciklum is looking for a DBA Architect to join our team full-time in Poland.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:As a DBA Architect, become a part of a cross-functional development team engineering experiences of tomorrow. 

Join our team as a DBA Architect and play a key role in shaping the future of our client's platform. 

As part of a cross-functional development team, your work will directly impact scaling the platform to handle heavy loads and achieve global reach. Collaborating closely with our talented tech team, you'll bring fresh ideas—whether inspired by user feedback or market trends—and help us make smart, lasting decisions that drive success.The challenge: 1 million users rely on our platform, and we aim to scale to 50 million. Stability and scalability are critical as we enhance the framework, improve robustness, and optimize key features like authorization, routing, and component interaction.The ideal candidate will play a crucial role in ensuring the performance, reliability, and scalability of our 4500 databases in a database-per-tenant architecture. You will collaborate closely with developers, providing guidance on query optimisation, monitoring database performance, resolving deadlocks, and overseeing database migrations to ensure data integrity and minimal downtime.

Responsibilities:

• Database Optimisation: Analyze and optimize MySQL databases to improve the performance of PHP applications, including query tuning, indexing strategies, and schema design

• Performance Monitoring: Implement and maintain monitoring solutions to proactively identify and resolve performance issues, bottlenecks, and inefficiencies within the database

• Query Optimization: Collaborate with PHP developers to review and optimize SQL queries, ensuring they are efficient and adhere to best practices

• Deadlock Resolution: Diagnose and resolve deadlocks and other concurrency issues that affect database performance and application stability

• Migration Management: Plan, execute, and oversee database migrations, ensuring minimal downtime and preventing data loss. Provide guidance on best practices for schema changes and data migrations

• Scaling: Architect and aid in transforming our current clusters to highly available large-cluster cloud deployments to meet our scaling needs

• Coaching & Mentorship: Coach and mentor developers on database best practices, query optimisation techniques, and the effective use of MySQL features

• Backup & Recovery: Design and implement robust backup and recovery strategies, ensuring data integrity and availability in the event of system failures

• Security Management: Ensure that the databases are secure, with appropriate access controls, encryption, and auditing in place to protect sensitive data

• Documentation: Maintain documentation of database architectures, processes, and best practices to ensure knowledge sharing and continuity within the team

Requirements:

• Experience: 

  • Minimum of 7+ years of professional experience as a Database Administrator, with a strong focus on managing MySQL clusters in large scale deployments

• Technical Skills:

  • Deep understanding of MySQL internals, including storage engines (InnoDB, MyISAM), indexing strategies, query optimisation, execution plan analysis and replication

  • Strong knowledge of database design, normalisation, and data modelling

  • Affinity with managing and implementing performance monitoring to gain insight into the health of the cluster(s)

  • Expertise in identifying and resolving deadlocks, lock contention, and other concurrency issues

  • Experience migrating data structures and collations in large-scale database clusters

  • Solid knowledge of the ins and outs of writing SQL-queries in PHP applications

  • Good track record of architecting and deploying different types of database infrastructures in a cloud-based environment

  • Experience with infrastructure as code tools and frameworks such as for example Ansible and Terraform would be a pré

Desirable:

• Strong problem-solving skills and analytical thinking, being able to implement improvement plans based on monitoring solutions

• Excellent communication skills, with the ability to explain complex database concepts to developers and non-technical stakeholders

• Ability to work both independently and as part of a collaborative team

• Strong organisational skills and attention to detail

• Ability to plan large projects spanning multiple weeks, managing requirements and stakeholders

What's in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment

• Growth focus: Take on large-scale projects with a global impact and expand your expertise

• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications

• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies

• Flexibility: Enjoy flexibility – full remote working possibilities

• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.Want to learn more about us? Follow us on Instagram, Facebook, LinkedIn.

Explore, empower, engineer with Ciklum!

Experiences of tomorrow. Engineered together

Interested already? We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.