Jobs SQL / DBA

Responsibilities
 

• Act as the primary point of contact for all MongoDB-related topics, including reviewing and approving configuration and setup changes.
• Maintain and support MongoDB databases across both Atlas and on-prem environments.
• Maintain and support SQL Server and PostgreSQL databases in on-prem and AWS environments.
• Monitor database systems for health, performance, and availability.
• Advise software engineers on SQL query optimization and database schema design.
• Minimize database downtime and manage High Availability (HA) and Disaster Recovery (DR) strategies.
• Plan and contribute to long-term scalability and database architecture.
• Implement database changes, apply patches, and manage version upgrades.
• Assist with building and maintaining data extraction pipelines from MongoDB and SQL Server.
• Participate in the on-call rotation to support production systems.
   

Requirements

• 4+ years of combined experience across data platforms, including at least 2 years in a DBA role (MongoDB and relational databases, infrastructure, and application support).
• Hands-on data engineering experience (Airflow preferred).
• AWS experience (minimum 1 year).
• Advanced T-SQL development skills.
• Proficiency with Git and modern code management workflows.
• Strong understanding of backup, recovery, security, and data integrity principles.
• Excellent problem-solving skills with strong algorithmic thinking.
• Ability to work effectively in a fast-paced environment and meet deadlines.
• Fluent in English.

We are looking for a Middle Analyst to join an analytics project for a US-based logistics company. 

Project: A SaaS-based shipping solution enables businesses to connect with carriers and optimize their freight operations.

Allocation:  Long-term / Full Time

Location: Remote
Client location: USA 

Hiring Process:
HR interview
Technical interview / practical skills assessment
Final interview with the client

Tech Stack:

• Power BI
• Data analysis / reporting
• Dashboard building
• Working with operational and business metrics
• SQL will be a plus

Responsibilities:

• Analyze timesheet and project data to generate actionable insights
• Prepare and deliver weekly and monthly reports
• Build and maintain dashboards to track support metrics and performance trends
• Monitor key metrics, identify significant changes, and proactively highlight insights
• Support recurring reporting processes in line with established schedules
• Collaborate closely with clients and internal business teams to ensure data accuracy and relevance

Requirements

• 3–5+ years of experience 
• Strong analytical mindset with the ability to interpret data and draw meaningful insights
• Ability to analyze datasets, identify trends, and detect anomalies
• Experience in building and maintaining recurring reports and dashboards
• Comfortable working with both ad-hoc analysis and ongoing operational reporting
• Proficiency in Power BI for data visualization and reporting

• English level: Upper-intermediate/Advanced

   

  Nice to Have

• Knowledge of SQL

We need an experienced Oracle Database Engineer who is comfortable owning complex, mission-critical environments and is ready to play an active role in modernising an enterprise data platform toward Azure and Microsoft technologies.

What this role is about

This is a hands-on Oracle-focused role with real technical depth and forward-looking scope. You will design, implement, and support core Oracle database environments while contributing to a gradual shift toward Microsoft and Azure-based platforms. It is not purely operational — you will have genuine influence over platform architecture and the direction of a broad, evolving data estate.

What you will actually do

Design, implement, and support enterprise-scale Oracle database environments

Own high availability, performance tuning, backup, recovery, and resilience across Oracle platforms

Support Oracle directory and identity services, including Oracle OID and OVD

Automate database operations through scripting, tooling, and replication

Collaborate with managed service providers and professional services partners to deliver and support Oracle services

Contribute to database architecture and platform design with security, performance, and scalability in mind

Support Microsoft SQL Server environments including SSRS, SSIS, and SSAS

Contribute to data warehousing solutions and ETL/ELT processes

Support and advise on Oracle-to-Microsoft and Azure migration initiatives

Build hands-on exposure to cloud database services including Azure SQL Database, Azure Cosmos DB, and MongoDB Atlas

What you bring — essential

Strong hands-on experience designing, implementing, and supporting Oracle databases

Solid grasp of Oracle performance, resilience, and security

Experience working with managed service providers or delivery partners

Working knowledge of Microsoft SQL Server and related BI tooling

Familiarity with data warehousing concepts and ETL/ELT pipelines

Practical, automation-first approach to database operations

Interest in or exposure to cloud database platforms, particularly Azure

Intermediate to advanced certification in Oracle, database, or cloud technologies

ITIL Foundation or equivalent service management experience

Nice to have

Oracle-to-Microsoft migration project experience

Azure-native database services and public cloud deployments

Modern data warehousing architectures

BI and data consumption platforms

Why this role stands out

You will work with large-scale Oracle environments that genuinely matter to the business, while also shaping where those platforms are heading. It is a rare combination of deep operational ownership and real architectural influence — with structured support to grow your skills across Oracle, SQL Server, and Azure along the way.

Fluent Trade Technologies is a global fintech software firm, recognized as a market leader in the eFX space. For over a decade, we’ve been delivering ultra-low-latency trading and market data solutions to the world’s largest banks, hedge funds, and non-bank institutions.

Our modular and scalable platform empowers clients to achieve faster, smarter trading decisions, improve execution certainty, and grow their market share across multiple asset classes — including eFX, eFutures, eFixed-Income, Cryptocurrencies, and eMetals.

With development centers in Europe and a collaborative, innovation-driven culture, Fluent’s mission is simple: to eliminate barriers to the most advanced trading technology and make it accessible to all market participants.

Learn more about us at www.fluenttech.net.

DBA 

We are looking for an experienced MySQL DBA, who can cover both database maintenance, failover, optimization etc, as well as help with SQL/Stored procedures optimization.

Responsibilities:

• Be a part of rapid development cycles to deliver high-quality products
• Hands-on Development of infrastructure and maintenance
• Be responsible for All databases in the organization, including development DBs, Staging DBs and Production DBs
• Cover Admin aspects like: Security, Failover/replication, Optimization etc.
• Cover Design aspects like: table structure, indexing, query / stored procedures design etc.
• Incorporate products, work procedures, best practices and architecture
• Going over specifications documents thoroughly to find special cases and scenarios
• Cooperate with dev, QA and devops teams

• Becoming the house expert on Database.

   

  Desired Skills & Experience

   

• 5 years experience as DBA, at least 3 of them as MySQL DBA
• Hands-on experience with DBA failover, security, optimization, backup etc.
• Hands-on experience with DB design, testing and maintenance
• Self-managed, can work as a single DBA in the organization
• Experience with a scripting language - Python, Bash. 
• Issue resolution abilities and good analysis to root cause detection

• Mandatory -- good English, both written and spoken

   

  Advantage

• Developed in C++, specifically calling mysql from it
• Financial background: FIX protocol, FX trading, 

• Experience with Jira, SVN, Jenkins

   

About the Role 

We're looking for an experienced Database Administrator to join our team and bring depth to our cloud database operations. You'll own the administration and maintenance of production and pre-production database environments running on Azure SQL Managed Instance, with real opportunities to expand your skill set into DevOps pipelines, release management, and infrastructure automation. 

About the Project
Our client operates community and specialty hospitals, a managed care organization, a physician network, community health centers, and home care and other health-related entities in the United States. The Research Portal — one of the internal products — is a web-based application with over 10,000 current users developed for the entire research community to review, monitor, and manage research portfolio. The main goal is to unite distributed and complex organizational processes into one application and help alleviate administrative burdens. 

Responsibilities:  

• Serve as the go-to expert for Azure SQL Managed Instance and Azure Data Factory across all production and pre-production environments, keeping things running smoothly and jumping in when they don't. 
• Provide Tier 2/3 troubleshooting support, diagnosing and resolving database and application issues in real time so the team and end users aren't left waiting. 
• Own query optimization and index tuning/maintenance to keep database performance tight, including proactive analysis to catch problems before they become incidents. 
• Manage and maintain high-availability configurations including Log Shipping, Always-On Availability Groups, and Backup/Restore with Point-in-Time Recovery (PITR). 
• Design and maintain ADF pipelines for ETL data integration, working toward modern, cloud-first patterns and phasing out legacy SSIS where possible. 
• Grow into adjacent areas like Azure DevOps pipeline management, release management, and repo management — this role has room to expand well beyond traditional DBA work. 
• Research and evaluate new technologies and approaches for building highly available data persistence systems, and bring those ideas back to the team. 

Skills & Experience: 

• Azure SQL Managed Instance Expertise: Strong understanding of the specifics, advantages, and operational differences between Azure SQL Managed Instance and standard SQL Server, including provisioning, management, and securing SQL MI environments. 
• Azure Data Factory Proficiency: Advanced experience designing and implementing ETL processes with Azure Data Factory, prioritizing ADF over traditional SSIS for data integration tasks. 
• In-Depth Knowledge of SQL and Database Concepts: Demonstrated excellence in MS SQL Server, relational database concepts, and expert-level proficiency in T-SQL. Experience with SQL Server 2016 and 2019 is mandatory; knowledge of SQL Server 2022 is preferred. This includes a strong foundation in database design, development, and maintenance. 
• SSIS Expertise: Hands-on experience with SQL Server Integration Services, including a deep understanding of its capabilities and practical application in ETL processes within data integration workflows. 
• Familiarity with Azure DevOps Tools: Working knowledge of Azure Pipelines and Azure DevOps Releases, including how builds and deployments are orchestrated across environments. You don't need to be building pipelines from scratch here, but you should be comfortable navigating and understanding them. 
• General Azure Application Resources Knowledge: Understanding of provisioning, managing, and securing Azure application resources, with a focus on best practices for cloud-based applications. 
• Problem-Solving and Troubleshooting Skills: Strong ability to troubleshoot and resolve complex problems across database and application layers, with a methodical approach to issue resolution. 
• Experience in day-to-day communication with English speaking customers. 
• Readiness to work in the PST time zone (EET: 07:00 AM – 04:00 PM). 

Nice to have: 

• Git and Code Management: Knowledge of Git for version control and experience with code management practices to ensure clean and maintainable codebases. 
• Additional Database Optimization: Experience with Query Store, Extended Events, and in-depth understanding of query optimization, procedure tuning, and index management for performance improvements. 
• Azure DevOps Pipeline and Release Creation: Hands-on experience building and maintaining CI/CD pipelines in Azure DevOps, including application builds, pipeline security, and deployment strategies. Bonus points for experience with infrastructure as code using ARM templates or Terraform for Azure resource deployment. This goes beyond general familiarity — we're talking about actually creating and owning pipelines end to end. 
• Scripting and Automation Skills: Familiarity with PowerShell and JSON for scripting and automation tasks within Azure environments. 

For one of our clients, we are looking for a Senior Database Administrator (On-Premise) (m/f/d).
Candidate Location: Worldwide, max. ±1 hour to CET.

About the Role
This is a hands-on senior on-premise DBA role focusing on the operation, optimization, and further development of critical production database systems. The role requires deep technical expertise and active involvement in daily operations, troubleshooting, and optimization.
?? Cloud environments (Azure, AWS, etc.) are NOT part of this project and are explicitly excluded by the client.
The consultant will work closely with DevOps teams, internal IT providers, and business stakeholders to ensure stability, performance, and security of distributed database environments.

Must-Haves:

• Senior DBA with 5–10+ years of professional experience
• Proven working experience as Senior Database Engineer / Database Administrator in on-premise environments
• Strong hands-on experience with:
• Distributed MS-SQL and NoSQL databases
• Database design, documentation, and implementation
• Monitoring, performance tuning, and optimization
• Disaster recovery, backup, and data integrity
• Excellent knowledge of T-SQL and solid scripting skills
• Experience with monitoring tools such as:
• Foglight, PRTG, ELK Stack, Grafana, Splunk
• Strong analytical and problem-solving mindset
• Business awareness and ability to translate requirements into technical solutions

Nice to have:

• Database containerization experience (Docker, Kubernetes, OpenShift)
• Relevant certifications (e.g. Azure DBA – certification only, no cloud usage)

Responsibilities

• Maintain database systems at a safe operational level with high availability and performance
• Design and implement database solutions aligned with business requirements
• Apply patches, upgrades, and system changes
• Roll out and maintain Always-On concepts for critical databases
• Ensure reliable backup, recovery, and disaster-recovery processes
• Manage database users and harden security
• Monitor systems and resolve issues sustainably
• Analyze deadlocks and optimize query performance
• Implement indexing strategies and performance improvements
• Ensure seamless data synchronization across distributed systems
• Define, document, and maintain database policies and standards
• Provide Level-4 incident support together with 12 DevOps teams
• Train DevOps teams and developers on database best practices
• Review existing implementations and proactively propose enhancements

Project Details
Start: ASAP / within 4 weeks
Duration: Until 31.12.2026, with option for long extension (12+ months)
Location: Remote (99%), 1-2 trips a year to Hamburg (costs covered)!!!
Workload: Full-time (35–40h/week)
Language: English (fluent)
Candidate Location: Worldwide, max. ±1 hour to CET.

About us:

ARRISE sets the benchmark for service delivery and excellence in the iGaming industry. Playing a key role in the success of its clients, which include Pragmatic Play, a brand relied upon by the world’s biggest online casinos for its cutting-edge products, ARRISE helps to deliver exceptional gaming experiences to millions of players worldwide. 

Our global team of over 6,000 talented and driven professionals are shaping the future of iGaming. Headquartered in Gibraltar, we have offices spanning Canada, India, the Isle of Man, Latvia, Malta, Romania, Serbia, Bulgaria, and the UAE, and more exciting destinations on the horizon. 

At ARRISE, we take pride in creating growth opportunities at all levels, constantly investing in our people while welcoming new colleagues and forging strategic partnerships that open new opportunities for success. 

To achieve this, we bet on ourselves. We know that success is a collective effort, and our team is driven by ambition, collaboration, and a shared commitment to grow and succeed—while embracing every step of the journey. 

Be part of the future of iGaming with 6,000 ARRISERS! See a job that excites you? Apply now, and our friendly recruitment team will connect with you soon. Your journey starts here!   

Requirements: 

• Requires 4 or more years of related experience, maintenance, and administration of PostgreSQL databases.   
• Previous SQL Server and/or Oracle database administration experience is a plus.  
• Strong writing and verbal communication skills.   
• Displays excellent collaborative skills with cross-functional teams.  

Responsibilities:  

• The DBA should have knowledge of some industry standard PostgreSQL databases including creation and implementation of fully functional PostgreSQL database clusters (both in the cloud AWS RDS and on-premises), ability to maintain multiple development, QA, and production PostgreSQL environments with experience in performance tuning.  
• Review existing configurations and installations and provide design decisions for improvements to platform environments.  
• Assist in planning and performing PostgreSQL database upgrades and migrations.  
• Perform production level support and be part of the on call rotation when required.  
• This position will be responsible for supporting new and existing PostgreSQL database systems, both internally and future Cloud managed instances and will contribute in defining best practices in database administration, and introduce innovation with automation.  
• Proficient with the Linux operating systems - Ubuntu, RHEL.  
• Assist in implementing long-term strategic goals for database development in conjunction with end users, managers, clients, and other stakeholders.   
• Perform debugging, tuning, and performance enhancement as well as automation of operational and continuous integration aspect of the PostgreSQL platform.  
• Independently analyzes, solves, and corrects issues in real time, providing problem resolution end-to-end.  

Company offers: 

• Long-term employment; 
• Flexible timetable; 
• Comfortable working conditions; 
• Paid vacation and sick leaves; 
• English lessons, gym; 
• Competitive salary level. 

Responsibilities

• Own and evolve the MySQL database architecture
• Design scalable and high-performance data models
• Optimize complex queries and indexing strategies
• Identify and resolve performance bottlenecks in production
• Ensure reliability, scalability, and availability of database systems
• Improve replication, backup, and disaster recovery processes
• Collaborate closely with backend engineers (Node.js ecosystem)
• Participate in architectural decisions and technical roadmap planning
• Implement and maintain monitoring & observability for database health
• Lead database-related best practices across the engineering team

Requirements

• 6+ years of hands-on experience with MySQL
• Strong experience with high-load / large-scale production systems
• Deep understanding of MySQL internals, indexing, query optimization
• Experience with replication, partitioning, and scaling strategies
• Solid knowledge of transactions, isolation levels, and locking mechanisms
• Experience working in AWS environments (RDS, EC2, networking)
• Strong problem-solving and analytical skills
• Experience collaborating within large engineering teams
• English — Upper-Intermediate+

Nice to Have

• Background in database architecture at Lead level
• Experience with distributed systems
• Knowledge of caching solutions (e.g., Redis)
• Experience with data migrations in high-load environments
• Familiarity with performance testing and load testing tools
• Experience mentoring or leading database initiatives

Company

Zoot is a global provider of cloud-based instant credit decisioning, risk management, loan origination, workflow and case management solutions. For more than 30 years our innovative tools and services have enabled Zoot clients – leading banks, payment service providers, automobile and asset finance companies – to meet and exceed their business objectives. Zoot enables their clients to adapt faster than their peers to successfully seize market opportunities. Zoot’s clients benefit from unrivalled reliability via a highly scalable private cloud-based service that processes billions of real-time decisions annually.
Over the past 15 years, Zoot has achieved remarkable growth in Europe, establishing offices across Switzerland, Germany, the United Kingdom, and Ukraine, while building a team of over 50 exceptionally talented individuals.

Responsibilities

• Administer and support high-availability geographically distributed InnoDB MySQL real-time cluster processing millions of queries each day.
• Continuously optimise DBMS setup and configuration to support growing data volumes while ensuring maximum stability and availability.
• Consult solution developers when implementing sophisticated database access layers for the application servers: including fine tuning database structures, indexes, clustering, etc.
• Develop, optimise and run database scripts to support ad-hoc requests.
• Monitor health of all database instances; report and create regular reports on database cluster and databases state.
• Serve as a subject matter expert during troubleshooting incidents.
• Manage and maintain MySQL clusters for test environments.
• Experience with setup, administration and maintenance of No-SQL database systems.
• Oversee procurement and renewal of software, licenses, and support services.
• Execute maintenance activities for all database clusters during dedicated maintenance windows.

Profile

• University degree in Computer Science or relevant technical field, or equivalent practical experience.
• Strong desire and ability to learn, grow, and continuously improve.
• Hands-on experience with setup, configuration, maintenance and troubleshooting of MySQL databases (and InnoDB in particular). Experience with No-SQL databases is beneficial.
• Practical experience working with Linux servers – preferably Oracle Linux.
• Experience with collaboration and documentation tools: MS Office, Confluence and ticketing systems like JIRA.
• Accurate and analytical working style with high attention to detail.
• Basic understanding of data protection and data security best practices.
• Upper-intermediate English.

Zoot Offers

• Competitive salary and a high-quality working environment.
• Know-how, professionalism, and an international market-leading reputation.
• Interesting and challenging international clients and projects.
• Highly motivated, highly qualified team of friendly colleagues.
• Flexible working schedule.
• Financial support for relevant certifications and professional events.

Delasport — Implementing Technological Solutions Here and Now.

Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are looking for the top talents to join our team in R&D centre in Kyiv.

The DBA team manages database availability, security, and performance, ensuring data integrity and efficient access. They handle backups and user permissions while providing proactive support.

RESPONSIBILITIES

• Design and maintain database systems, ensuring high availability and reliability tailored to each end user’s role
• Implement databases aligned with specific user information needs and operational requirements
• Define user permissions and facilitate precise data distribution, ensuring timely and accurate access
• Leverage high-speed transaction recovery techniques and establish regular data backups to ensure data integrity
• Minimize database downtime, tuning parameters to maximize query performance and responsiveness
• Provide both proactive and reactive data management support to ensure uninterrupted operations
• Develop, enforce, and document comprehensive database policies, procedures, and standards
• Conduct regular tests and evaluations to safeguard data security, privacy, and integrity
• Monitor database performance, apply updates, and implement patches to maintain optimal operation

REQUIREMENTS

• Experience: Proven background in database administration, IT, database architecture, or a related field
• Technical Skills: Hands-on experience with database standards and end-user applications
• Data Integrity & Security: Strong knowledge of data backup, recovery, security, and integrity protocols for SQL or NoSQL engines
• System Proficiency: Experience with GNU/Linux server environments
• Database Design: Familiarity with database design principles and documentation practices
• Programming Knowledge: Basic familiarity with programming languages
• Problem Solving: Strong analytical skills with a capacity to approach challenges algorithmically
• Education: BS degree in a computer discipline or a relevant certification

NICE TO HAVE

• Expertise with MySQL and PostgreSQL
• Familiarity with cloud technologies like GCP and AWS
• Experience with version control systems such as GitHub and Bitbucket

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

Doctor Eleks is a Ukrainian medical information system that helps automate the work of clinics and doctors across the country. We are looking for a Middle Software Developer to join our eHealth team on a remote basis!

eHealth is an electronic healthcare system that automates the recording of medical services and the management of medical information.

Key responsibilities for the project:

• Database design (creating tables, relationships, and writing procedures)
• Integration with the medical system (using an internal framework)

Skills our future colleague should possess:

• Strong experience with Microsoft SQL Server and relational databases.
• Ability to write efficient, complex SQL queries for high bandwidth large datasets.
• Hands-on experience with stored procedures, views, and functions.
• Strong knowledge of query optimization and performance tuning.
• Experience in analysis and improvement of execution plans.
• Solid understanding of indexing (clustered, non-clustered).
• Knowledge of database design, keys, and table relationships.
• Basic database administration skills (indexing, tuning, optimization).
• Experience working across SDLC phases.
• English level: A2–B1.

Will be a plus:

• Knowledge of API architectures and .NET
• Experience with REST API, MySQL, PostgreSQL, and OracleDB.

What do we offer:

• Health insurance;
• Competitive compensation based on your experience and skills;
• The opportunity to work on a technologically complex and socially significant product in the medical field;

• A team of professionals who support and share their expertise.

   

If you want to be a part of our team that is truly changing healthcare in Ukraine — Doctor Eleks is waiting for your resume 💙

We are looking for an experienced specialist who understands the technical realities of email deliverability — especially when it comes to reaching the inbox at German freemail providers.

If you have a strong track record with getting inbox with providers like GMX, Web.de, and T-Online, we would be glad to connect.

Your Mission

Design and operate a high-performance SMTP infrastructure that achieves reliable inbox placement, even when working with HTML-rich content and more sensitive filtering environments.

Scope & Volume

• Monthly sending volume of approximately 400,000 to 800,000 emails
• Focus on consistent inbox placement at scale, not just initial setup
   

What You’ll Do
 

• Build and manage a scalable, VPS-based SMTP infrastructure
• Optimize inbox placement for German mailbox providers, including GMX, Web.de, and T-Online
• Configure and maintain:
   
  • SPF, DKIM, DMARC
  • rDNS, HELO, and MX records
• 
   
• Plan and execute structured IP and domain warmup strategies
• Monitor and manage IP and domain reputation
• Analyze deliverability performance, including:
   
  • Bounce patterns
  • Throttling behavior
  • Spam filter responses
• 
   
• Continuously test, monitor, and improve system performance

Your Profile

• Proven hands-on experience in email deliverability and infrastructure
• Strong technical background in SMTP, DNS, and server environments
• Familiarity with European mailbox providers, ideally German freemail systems
• Solid understanding of filtering mechanisms such as greylisting, rate limiting, and reputation systems
• Analytical and data-driven approach to problem-solving

Objective

Achieve stable and scalable inbox placement across major German freemail providers

 

Engagement
 

• Remote position
• Immediate start possible
• Opportunity for long-term collaboration

About the Project
We are building a system that integrates multiple databases and external APIs, aggregates information from various sources, and builds a real-time knowledge graph to track complex relationships between entities.

Key Requirement
‼️ Hands-on experience with graph databases (minimum 6 months) is mandatory.
We will only consider candidates with practical experience in data modeling and writing queries for graph databases.

Tech stack: Python, FastAPI, SQL, NoSQL, graph, Docker, Docker Compose.

Required Skills
— 3+ years of commercial experience as a Backend Python Developer
— Hands-on experience with graph-structured data (minimum 6 months)
— Strong knowledge of SQL and NoSQL databases
— Good understanding of AWS and cloud-based architectures
— Fluent English
— Degree in Computer Science, Mathematics, or related field

Responsibilities
— Design, develop, and maintain backend services in Python
— Build, optimize, and scale cloud-based graph databases
— Model complex relationships using graph data structures (nodes, edges, properties)
— Integrate graph databases with other data storage solutions (SQL / NoSQL)
— Design, plan, and implement proof-of-concept solutions involving graph technology
— Optimize and troubleshoot graph queries
— Provide best practice recommendations for graph database design and integration
— Collaborate with cross-functional teams and present technical solutions to stakeholders

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies. 

We are looking for a DBA Engineer to join our teams!

Requirements:
- 4+ years of experience as a Database Administrator (DBA) or similar role
- Expertise in relational databases, PostgreSQL, NoSQL databases (MongoDB, Redis), and analytical database ClickHouse
- Resolve complex performance bottlenecks in large-scale environments
- Strong knowledge of database optimization, indexing, partitioning, and replication
- Experience in performance tuning, query optimization, and troubleshooting slow queries across different SQL dialects
- Implement database changes with minimal business impact
- Experience with cloud database platforms
- Experience with Infrastructure as Code (IaC) tools (e.g., Terraform, CloudFormation) for database deployment and management
- Experience with observability platforms (e.g., Prometheus, Grafana, Datadog, ELK stack) for database monitoring and logging
- Familiarity with database backup, recovery, failover, and disaster recovery strategies
- Design and implement HA/DR architectures
- Troubleshooting of problems, problem analysis and solution implementation
- Experience with cloud database services (AWS RDS, Aurora)
- Knowledge of scripting for automation ( Bash, SQL scripts).
- Understanding of data security best practices, encryption, and compliance requirements
- Experience working with large, complex datasets and high-traffic applications
- Ability to work with DevOps teams to integrate databases into CI/CD workflows

Responsibilities:
- Design, implement, and maintain high-performance database systems to support large-scale applications
- Optimize database queries, indexing strategies, and partitioning to enhance performance
- Monitor database health, ensuring high availability, scalability, and disaster recovery
- Manage and fine-tune SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, Redis, ClickHouse)
- Implement database security policies, encryption, and access control to protect sensitive data
- Automate database backups, replication, and failover mechanisms.
- Work closely with developers to optimize queries, schema design, and data modeling
- Perform capacity planning and monitor database growth trends
- Ensure compliance with data governance, GDPR, and other regulatory requirements
- Stay updated with the latest database technologies, trends, and best practices
- Develop and maintain infrastructure as code (IaC) for database provisioning and configuration, migrations and versioning
- Participate in defining and enforcing data modeling standards and best practices
 

Technical Stack:
PostgreSQL , NoSQL databases (MongoDB, Redis) and analytical database ClickHouse, Terraform, Ansible, Grafana, Supersets, Splunk

Our benefits to you:
🍀 An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more
🤝🏻 Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻 Modern corporate equipment based on macOS or Windows and additional equipment are provided
🏖️ Paid vacations, sick leave, personal events days, days off
💵 Referral program — enjoy cooperation with your colleagues and get the bonus
📚 Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯 Rewards program for mentoring and coaching colleagues
🗣️ Free internal English courses
✈️ In-house Travel Service
🦄 Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more
🎳 Other benefits could be added based on your location

We are looking for a Database Developer / DBA to join our team. You will be responsible for making our data infrastructure reliable and helping it grow. We need someone who has strong technical opinions and knows how to build resilient, high-performance database systems. This role is perfect for someone who prefers working with a focused, high-impact data environment rather than managing a massive amount of data sprawl.

WHAT YOU’LL BE WORKING ON

• Collaborative Infrastructure Design: You will work closely with the DevOps team to suggest and design solutions for our infrastructure. Your role is to provide the architectural vision while working together on implementation.
• High Availability: You will design and maintain replication, failover, and clustering to make sure our systems are always running and fault-tolerant.
• Backups & Disaster Recovery: You will design and test backup strategies to ensure we can restore data quickly with almost no downtime.
• Observability & Monitoring: You will use tools like Prometheus and Grafana to watch our systems, check their health, and set up alerts for any issues.
• Zero-Downtime Maintenance: You will handle routine tasks like patching and vacuuming using blue-green update techniques to avoid service interruptions.
• Automation: You will use Ansible and Terraform to make infrastructure and deployment processes more efficient.
• Architecture & Design: You will lead the planning of our database systems and provide a clear point of view on how to design schemas for better performance.
• Performance Engineering: You will find performance problems and tune queries and indexes based on how the system is being used.
• Development Support: You will work closely with engineering teams to help them optimize queries and plan safe database migrations.
• Security & Access Management: You will manage database security, encryption, and rules for data access.
• Incident Response: You will help find the root cause of database problems and write clear documentation for our systems and recovery steps.

WHAT YOU NEED TO SUCCEED IN THIS ROLE

• PostgreSQL Expertise: You have 4+ years of hands-on experience managing production environments at a terabyte scale, such as a fleet of up to 100 instances.
• Technical Conviction: You have a proven ability to recommend and advocate for the best database setups and high-availability systems.
• Cloud Proficiency: You have experience managing databases in major cloud environments (like AWS, Azure, or GCP) or private/VPS setups. Knowledge in  Amazon Aurora, NoSQL, Columnar DBs, and/or Timeseries is a plus.
• Automation Mindset: You have a strong background in scripting and automation to manage production environments efficiently.
• AI: having the skill to use AI tools to assist with coding or monitoring is a great advantage.