Technical AI Business Analyst (Cortena)

👋 About Cortena

Cortena is building the next generation of AI-powered financial intelligence for SMEs. Finance teams today are overwhelmed by scattered data, fragile spreadsheets, and delayed insights. We’re changing that.

Based in Rotterdam and backed by Builders Studio, Cortena is on a mission to give finance leaders clarity, foresight, and control — turning messy financial data into real-time cash visibility, forecasting, and scenario planning. We combine modern AI, automation, and financial reasoning models to help companies make faster, smarter decisions.

Why this role exists

We are seeking a Technical AI Business Analyst to bridge the gap between business requirements and technical implementation in our AI-driven environment. This role combines analytical expertise with hands-on technical skills to analyze customer data, optimize LLM prompts, and ensure data integrity across our connected systems.

Key Responsibilities

Data Analysis & Debugging

• Analyze customer data, patterns and behaviors using MongoDB queries

• Debug data inconsistencies and identify root causes of data quality issues

• Create comprehensive reports on customer metrics and system performance

• Monitor and analyze LLM prompt effectiveness and response quality

Technical Implementation

• Design and execute complex NoSQL database queries for data extraction and analysis

• Integrate with various internal and 3rd-party APIs to collect, validate, and synchronize data

• Develop automated data validation and monitoring processes

• Collaborate with development teams on data architecture and generic transformation improvements

Financial Data Management

• Analyze customer accounting data for accuracy

• Identify gaps and/or data quality issues in financial data across multiple product features

• Create meaningful financial reports and dashboards for customers

• Ensure proper generic transformation of categorization and tracking of cost- and revenue streams of our customers

AI & Prompt Engineering

• Evaluate and optimize LLM prompt performance

• Analyze conversation flows and user interaction patterns

• Identify and help implementing A/B testing frameworks for prompt optimization

• Document best practices for AI model interactions

Technical Skills

• Database Management: Advanced proficiency in MongoDB queries, aggregation pipelines, and indexing strategies

• API Integration: Experience with RESTful APIs, authentication protocols, and data synchronization

• Programming: Strong TypeScript skills for data processing and automation scripts

• Data Analysis: Proficiency in data visualization tools and statistical analysis methods

Business Background

• Financial/Accounting Experience: 3+ years in accounting, finance, or related field

• Business Analysis: Experience translating business requirements into technical specifications

• Process Improvement: Track record of identifying and implementing operational efficiencies

AI & Technology

• Understanding of LLM capabilities and limitations

• Experience with prompt engineering and AI model evaluation especially combined with financial data

• Familiarity with machine learning concepts, data preprocessing and generalisation of customer specific data streams

Technical Environment

• Databases: MongoDB, potential exposure to other (No-)SQL solutions

• Languages: TypeScript, Python

• Tools: API testing tools (Postman, Insomnia), data visualization platforms

• Platforms: Cloud-native infrastructure, containerized applications

Preferred Qualifications

• Experience with self-hosted cloud platforms (Rancher, Kubernetes)

• Knowledge of data governance and compliance frameworks

• Previous experience in fintech or AI-driven companies

• Familiarity with version control systems (Git), agile methodologies, KISS and DRY

Key Competencies

Analytical Thinking

• Ability to break down complex business problems into manageable components

• Strong pattern recognition and anomaly detection skills

• Data-driven decision making approach

Communication

• Translate technical findings into business-friendly insights

• Create clear documentation and presentations for various stakeholders

• Collaborate effectively with cross-functional teams

Problem Solving

• Systematic approach to debugging and root cause analysis

• Creative solutions for data integration challenges

• Proactive identification of potential issues

Success Metrics

• Accuracy and timeliness of data analysis reports

• Reduction in data quality issues and system bugs

• Improvement in LLM prompt performance metrics

• Stakeholder satisfaction with analytical insights and recommendations

• Successful implementation of process improvements and automation

Career Growth Opportunities

• Lead technical business analyst role

• Specialization in AI/ML analytics

• Transition to data science or engineering roles

• Business intelligence and strategy positions

This role offers the opportunity to work at the intersection of finance, technology, and artificial intelligence, making a direct impact on business operations and customer experience.

This role is for Cortena, a Builders portfolio company. Hiring is managed by the Cortena team.