Principal: Data Engineer at Cellulant

Cellulant is a mobile commerce and content company that manages delivers and bills for digital content and commerce service actualized over telecom network. The industry defines this segment as mobile Value Added Service (VAS) or Wireless Premium Rate Service Provider (PRSP) We are a member company of the Cellulant group which has commercial services running in Kenya, Ghana, Malawi, Nigeria, Zambia, South Africa , Uganda , Botswana and the EU. Cellulant Nigeria have rolled an innovative and top-class business and technolgy solutions to banks, multinational companies like Guinness Nigeria Plc being her technology partner in the 'Guinness Greatest Eleven Nigerian football legend’o, Pepsi Sponsored FIFA U-17 football tournament hosted by South Korea, Procter and Gamble(P&G), Nigerian Breweries, automobile giants like Toyota Nigeria Limited, Fast moving and consumer goods (FMCGs) companies like Unilever, Mr. Biggs and a host of other companies like Promasidor, Smithline and Beechams SKG etc.

JOB DESCRIPTION:

• As the Principal Engineer in the Database & Data Engineering Department, you will be responsible for building and maintaining Cellulant's rapidly expanding Data Infrastructure.
• You will be responsible for architecting, implementing, and maintaining our data infrastructure while ensuring high availability, performance, and security of our databases. The ideal candidate will have deep expertise in database design, data pipelines, ETL processes, AWS data solutions, on-prem database setups, and cloud-native architectures.

KEY RELATIONSHIPS:

• Software Engineers.
• Infrastructure Engineers.
• CI/CD Engineers.
• Data Warehouse Team.
• Customer Success Teams.
• Service Operations Team.

CORE RESPONSIBILITIES:

• Build different types of data warehousing solutions to meet Cellulant's data needs.
• Lead the design, implementation, and successful delivery of large-scale data solutions involving multiple data sources.
• Build scalable data infrastructure and understand distributed systems concepts from a data storage perspective.
• Utilize expertise in SQL, ETL, and data modeling.
• Ensure the accuracy and availability of data and understand how technical decisions impact analytics and reporting.
• Deploy and maintain relational and NoSQL databases, including MySQL, PostgreSQL, Oracle, and Redis.
• Optimize database performance, indexing, partitioning, and query tuning.
• Manage database migrations and upgrades,
• Implement high availability, clustering, replication strategies, and disaster recovery solutions for on-prem and cloud databases.
• Work closely with networking and security teams to ensure secure database access.
• Develop and manage ETL pipelines using tools like AWS Glue and Lambda.
• Ensure data quality, governance, and compliance with standards like GDPR, HIPAA, and SOC 2.
• Mentor and coach junior data engineers and DBAs, fostering a culture of automation and DevOps best practices.
• Leverage AWS Database Migration Service (DMS) for seamless data replication and migration.
• Utilize data streaming platforms like Kafka.
• Monitor and analyze database performance using Datadog and other observability tools.
• Implement infrastructure as code (IaC) using tools like Terraform and Ansible for database provisioning and automation.
• Establish data security and encryption best practices across database environments.
• Develop strategies for cost optimization and resource efficiency across cloud-based and on-prem data infrastructure.
• Define SLAs, performance benchmarks, and monitoring standards for data services.
• Collaborate with product and analytics teams to ensure scalable data solutions align with business goals.

QUALIFICATIONS & EXPERIENCE:

• Having obtained a Degree in a relevant Computer Science.
• Qualified to ISEB/ISTQB Foundation Level or better.
• You've got a working knowledge of Docker.
• You're interested in growing your knowledge and skills in Test Environment Provisioning and Configuring using technologies like Terraform, Ansible, Kubernetes, GCP, or AWS.h
• Knowledge Continuous Integration systems (e.g., Jenkins, Travis, GitLab), Programming languages and tools: Python, Selenium, Java, XML, SQL, JavaScript and REST API testing tools such as Postman, SOAP UI, JMeter.

EXPERIENCE:

• 8+ years of experience in database administration and data engineering.
• Expertise in SQL database administration, tuning, and optimization.
• Experience with AWS RDS, Aurora, and DynamoDB.
• Vast experience deploying large-scale SQL databases and data warehouse platforms.
• Experience deploying services on Managed Databases & Data Warehouses using cloud providers like AWS, GCP, and Azure.
• Proven experience with on-prem database architecture, high availability, and disaster recovery strategies.
• Familiarity with security best practices and compliance frameworks.
• Strong experience with IaC tools like Terraform, Ansible, or CloudFormation.
• Experience with deploying Non-relational (NoSQL/NewSQL) databases will be an added advantage
• Solid Experience in the administration of Linux environments.
• Solid Experience in the administration of data streaming platforms eg Kafka
• Experience with data programming/scripting languages eg Python, R is desirable.
• A solid understanding of Internet-based technologies (TCP/IP, DNS, Security, HTTP/HTTPS)
• Strong security awareness for cloud and on-prem databases.
• Ability to document key design and operational practices.
• Experience with Machine Learning model creation, training & operationalisation
• Familiarity with data lake architectures and big data frameworks.

SKILLS:

• Database Administration for SQL and NoSQL environments.
• Linux Administration.
• Proficiency in Data Streaming Platforms (Kafka).
• Programming/scripting languages (Python, R) desirable.
• Infrastructure as Code (IaC) proficiency (Terraform, Ansible, CloudFormation).
• Database security and encryption best practices.
• Performance tuning and capacity planning.

Method of Application

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