BlueChip Technologies is a leading business application firm focused exclusively on assisting organizations in planning, designing, implementing and operating business application solutions and strategies that are central to creating and maintaining a competitive business advantage.
We are recruiting suitably qualified candidates to fill the position below:
Job Title: Senior Data Engineer
Location: Nigeria
Description
- As part of our continued growth, we are seeking an experienced Senior Data Engineer to join our Data Services Division.
- This is a permanent, client-embedded role supporting tier-1 telecom customers, where you will build, operate, and continuously enhance large-scale Apache Open-Source Lakehouse and analytics platforms.
- The successful candidate will play a critical role in ensuring platform reliability, delivering new analytics use cases, and serving as a trusted technical partner to our client.
Key Responsibilities
- Design, develop, test, and maintain large-scale data pipelines using Apache Kafka, Spark/PySpark, Flink, Airflow, Trino, and Apache Iceberg/Delta Lake.
- Build and support Bronze, Silver, and Gold medallion-layer data pipelines processing high-volume telecom data at terabyte and petabyte scale.
- Design and implement dimensional (Kimball-aligned) data models, including fact tables, dimension tables, star schemas, and slowly changing dimensions (SCDs).
- Contribute to data platform architecture by defining partitioning strategies, schema evolution, and storage optimization.
- Serve as the primary technical point of contact for client data engineering requirements, participating in client meetings and resolving operational issues within agreed service levels.
- Translate business and analytics requirements into scalable data pipelines and reusable data products.
- Monitor pipeline performance, investigate and resolve data quality issues, and implement monitoring, alerting, and observability for production environments.
- Maintain architecture documentation, runbooks, data dictionaries, and technical documentation to ensure knowledge continuity and reduce key-person dependency.
- Mentor junior and mid-level Data Engineers through code reviews, technical guidance, and knowledge-sharing initiatives.
- Collaborate with Data Architects, BI Developers, Data Analysts, and Project Managers to deliver high-quality data solutions aligned with business objectives and project timelines.
Qualifications & Requirements
- Bachelor’s Degree in Computer Science, Engineering, Information Technology, or a related discipline (or equivalent practical experience).
- Minimum of 6 years’ professional experience in Data Engineering, including at least 3 years supporting large-scale (terabyte/petabyte) data platforms.
- Proven hands-on experience with the Apache Open-Source ecosystem, including Apache Spark (PySpark), Apache Kafka, Apache Airflow, andApache Iceberg or Delta Lake.
- Strong SQL expertise and practical experience designing and implementing dimensional (Kimball) data models.
- Experience building and supporting Medallion Architecture (Bronze, Silver, Gold) Lakehouse solutions with robust data quality and reconcilisation processes.
- Strong Python programming skills for data engineering, automation, testing, and pipeline development.
- Experience working within Linux and cloud-based environments.
- Experience with telecom data sources such as Call Detail Records (CDRs), OSS/BSS systems, network probe data, or similar large-scale datasets is highly desirable.
- Experience with Huawei network probe data ingestion will be considered a significant advantage.
- Familiarity with workflow orchestration, CI/CD pipelines, and Infrastructure-as-Code practices.
Key Competencies:
- Strong client engagement and stakeholder management skills.
- Excellent written and verbal communication abilities.
- Demonstrated ownership mindset with strong documentation practices.
- Ability to manage multiple priorities across operational support and new solution delivery.
- Strong analytical, troubleshooting, and problem-solving skills.
- Collaborative team player with experience mentoring junior engineers.
- Reliable, dependable, and comfortable working within a client-embedded hybrid environment.
Application Closing Date
Not Specified.
https://www.hotnigerianjobs.com/hotjobs/925128/senior-data-engineer-at-bluechip-technologies-limi.html