Senior Data Engineer (AI & Data Platform)
- Level
- Senior
- Work type
- Remote · Bulgaria only
Not stated in the posting: salary, visa.
Open. First seen 3 October 2026.
About the role
Mobile Wave Solutions is a professional services company specializing in software development as a service. With a team of over 120 engineers, we deliver scalable, high-quality software that empowers our global clients to innovate and grow. We value collaboration, technical excellence, and a pragmatic approach to solving complex problems.
About the Role
We’re looking for a Senior Data Engineer to be a foundational, greenfield hire and build our analytical data platform from the ground up on modern cloud infrastructure. While we run a production Postgres database, we do not yet have a dedicated analytical data platform—and that is the heart of this role.
You will design and build our data foundation, turning it into the trusted core that powers our agentic AI on two distinct fronts:
- Internal AI Agents: Creating curated, governed company data that our internal agent systems can reason over reliably.
- Customer-Facing AI Features: Building the modeled data pipelines and feature stores behind the predictive and prescriptive insights shown on customer dashboards.
You are an expert data engineer who genuinely understands how modern LLM agents consume data, embeddings, and feature stores. In this role, you will completely own the data and retrieval layer, partnering closely with our Senior Agentic Systems Engineer who builds the orchestration and agent logic on top of it.
Key Responsibilities
- Build the Analytics Platform (Greenfield): Design and build our first analytical data platform on cloud infrastructure (warehouse, ingestion, transformation, and orchestration).
- Develop the AI Data Layer: Build and maintain the retrieval substrate, embeddings pipelines, and vector storage (RAG data plumbing) to keep internal and external agents grounded in fresh, accurate data.
- Construct Data Pipelines: Build reliable ELT/CDC pipelines from production Postgres and backend services using cloud-native streaming/ingestion tooling and dbt for transformation.
- Model Data for AI & Analytics: Create dimensional models and a documented semantic/metrics layer to serve dashboards, data analysts, and internal AI agents with unified definitions.
- Establish Orchestration & CI/CD: Set up workflows using a modern orchestrator (Airflow, Dagster, or Cloud Composer), alongside data CI/CD environments and automated testing.
- Own Governance & Compliance: Implement data validation, lineage, observability, and PII controls appropriate for sensitive financial, donor, payments, and cross-border tax data.
- Collaborate Across Teams: Partner with the AI Systems Engineer and backend team to instrument product events and ship customer-facing insights.
Qualifications
- 6+ years of Data Engineering experience, including at least one greenfield warehouse/platform build you owned end-to-end.
- Demonstrable LLM & AI Data expertise: Proven track record of building embeddings pipelines, managing vector databases (e.g., pgvector, Pinecone, Qdrant, Weaviate, Vertex AI Vector Search), and architecting RAG data plumbing or feature stores that feed production AI/LLM systems.
- Deep understanding of how AI agents consume data, including data retrieval strategies, context window management, semantic search optimization, and grounding LLMs in structured enterprise data.
- Expert SQL and deep PostgreSQL experience, alongside strong hands-on expertise with major cloud data warehouses (e.g., BigQuery, Snowflake, Redshift, or Databricks).
- Proficient in Python for building scalable data pipelines, custom ML/AI data tooling, and integrations.
- Strong ELT/ETL design using dbt and modern orchestration frameworks (Airflow, Dagster, or Prefect).
- Hands-on experience with modern cloud data infrastructure across major providers (GCP, AWS, or Azure data services, object storage, and event streaming/messaging queues).
- Strong grasp of data governance: Enterprise-grade data quality, lineage, observability, and strict PII controls suitable for financial and sensitive domain data.
Desirable Pluses:
- Direct experience building data layers that production LLM agents depend on.
- Experience with Streaming / Change Data Capture (CDC) at scale and near-real-time serving.
- Experience with ML feature engineering, MLOps, or cloud AI ecosystems.
- Familiarity ingesting data from backend APIs (.NET/Go/Python) and tracking events from React/React Native clients.
- A background in Fintech, payments, or the charitable-giving/nonprofit domain.
Our Benefits
- Remote or Hybrid Work Options
- Private Health Insurance, including dental care
- Additional Holidays after your 1st and 5th year
- Sponsored Training & Certifications
- Employee Referral Bonuses
- Multisport Card – fully covered
- Fun Office Space with relaxation zones and free parking
What this role asks for
Particular to this role
Airflow · BigQuery · Databricks · LLM · MLOps · Machine Learning · RAG · React Native
Rare in NDEAVOUR CONSULTING's other 9 open postings.
Standard for data engineering roles
AWS · Azure · Data Warehousing · ETL · GCP · Python · SQL · Snowflake
Common in data engineering postings at any company.
In most of NDEAVOUR CONSULTING's ads
CI/CD
Named in most of its open postings, whatever the role.
Read against NDEAVOUR CONSULTING's other open postings on this site.
The team: Mobile Wave Solutions HIRES STEADILY
This role is one of 8 open in Mobile Wave Solutions. 5 were posted in the last 30 days and the oldest in August: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Azure (6 of 8), GCP (6 of 8), .NET (5 of 8), AWS (5 of 8), CI/CD (5 of 8), Python (4 of 8), C# (3 of 8)
OTHER ROLES ON THIS TEAM
- Backend Engineer (.NET) posted Oct 15
- Senior iOS Developer posted Oct 14
- Principal SRE posted Oct 14
- Senior Software Engineer – Backend (.NET) posted Oct 2
- Senior Full-Stack Developer (.NET and JavaScript) posted Sep 21
- Senior Agentic Systems Engineer posted Aug 20
- Senior Data Engineer - Databricks posted Aug 12
From the team and dates on NDEAVOUR CONSULTING's own job board.
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