NinjaHoldings

QA Engineer

• Design and implement testing strategies for complex web and mobile applications built on Ruby on Rails, ensuring consistent quality across all environments
• Collaborate early in the development lifecycle to define quality standards, acceptance criteria, and testing scope for both web and mobile initiatives
• Lead test automation efforts, developing and maintaining robust automated test suites for regression, integration, performance, and end-to-end testing across web, API, and mobile platforms
• Perform manual testing for new and high-risk features, exploratory testing on iOS and Android builds, and post-release verification
• Identify, isolate, and document defects with comprehensive reports and actionable insights for developers
• Work closely with developers to validate backend logic, APIs, and integrations within Ruby on Rails services
• Champion quality by driving process improvements, mentoring junior QA engineers, and introducing new tools or frameworks to increase testing efficiency and coverage
• Collaborate cross-functionally to ensure QA coverage aligns with business priorities and customer expectations

Senior QA Engineer

• Lead, mentor, and scale the QA team, instilling best practices in manual and automated testing
• Architect and evolve QA strategy across functional, regression, integration, performance, and security testing
• Drive test automation initiatives using modern frameworks and languages—leveraging your background in software development
• Collaborate with Engineering, Product, and DevOps to build quality into each phase of the SDLC
• Build and maintain a test infrastructure integrated with CI/CD pipelines for fast, reliable feedback loops
• Define and track quality metrics, assess risk, and clearly communicate test outcomes and quality status to stakeholders
• Promote shift-left testing, test-driven development (TDD), and behavior-driven development (BDD) practices
• Actively contribute to improving code quality and design through participation in reviews and architectural discussions

QA Manager

Product Marketing

• Act as the lead marketer for card and monetization products, defining product positioning, messaging, and go-to-market strategies
• Drive campaigns that increase direct deposit enrollment, card activation, transaction volume, and marketplace engagement
• Manage full marketing lifecycle from product development and launch to growth and expansion
• Design and execute multi-channel digital campaigns across paid acquisition, email, push, and in-app messaging
• Own key marketing metrics including CAC, LTV, conversion rates, and engagement KPIs
• Use qualitative and quantitative data to optimize positioning, messaging, and marketing strategies
• Influence product roadmaps by synthesizing market, customer, and competitive insights with audience segmentation and opportunity sizing
• Partner with Product, Engineering, Data Science, design, and content teams to align strategy and leverage customer insights
• Ensure marketing campaigns meet financial services regulatory requirements
• Act as voice of the customer, synthesizing market research and feedback to drive product-market fit

Product Marketing Lead

Data Engineer

• As a Data Engineering Intern , you’ll gain hands-on experience supporting the development, monitoring, and optimization of our data infrastructure. You’ll work with experienced data engineers and collaborate with teams across Engineering, Business Intelligence, and Data Science to ensure data is reliable, accessible, and scalable. This internship is designed to give you exposure to real-world data engineering practices, including relational databases, data pipelines, and cloud-based data warehouses. You’ll have the opportunity to learn how data powers decisions at a fast-growing fintech company while developing your technical skills in a supportive, collaborative environment.
• Key Responsibilities:
• Learn how to manage and optimize relational databases (Postgres, MS SQL Server)
• Assist in building and monitoring data pipelines for BI and Data Science teams
• Support the setup and scaling of our data warehouse stack (Snowflake, Fivetran, DBT)
• Contribute to performance tuning tasks at query, table, and database levels
• Help establish monitoring and alerting for production data systems
• Gain hands-on experience with ELT data pipelines and best practices.
• Learn how to work with data in cloud environments like AWS
• Write automated warehouse data model tests

Data Engineer Intern

Financial Planning and Analysis

• Learn about the unsecured consumer lending space in a fast-paced environment
• Provide support of Capital Markets activities, including all corporate funding and liquidity activities of the company, involving structuring, negotiation, legal document review and execution of revolving warehouse facilities, private financings and securitizations
• Assist in the development, preparation and analysis of daily/weekly/monthly operational reporting used to drive decision-making in executive management meetings
• Support budgetary planning and monitoring, including creation and maintenance of product and financial models
• Track real-time performance of the loan portfolio using SQL-based data visualization tools
• Provide analytical and financial support to functional departments including Operations, Product, Risk and Technology
• In general, serve as support for the members of the FP&A and Capital Markets team

FP&A and Capital Markets Intern

Risk

• Monitor key funnel and loan performance metrics, reports, and dashboards to evaluate product performance
• Establish funnel and loan performance metrics and develop automated reporting and alerting using SQL and Python
• Conduct analysis using advanced data analytics to evaluate trends and provide optimization strategy recommendations
• Collaborate with cross-functional teams to implement funnel or underwriting strategy changes, monitor releases, and perform impact analysis
• Analyze A/B testing data for funnel or underwriting optimization experiments and provide recommendations

Risk & Analytics Intern

Full-stack Engineer

• As a Software Engineer Intern , you’ll gain hands-on experience working with our engineering team to build and improve the technology that powers NinjaHoldings’ financial products. This internship is designed to give you exposure to real-world software development, mentorship from experienced engineers, and the opportunity to make meaningful contributions to projects that impact thousands of customers.
• You’ll be paired with a mentor and collaborate with developers, QA engineers, and product managers.
• Key Responsibilities:
• Assist in developing and maintaining Ruby on Rails applications
• Write clean, efficient, and well-documented code with guidance
• Collaborate with developers, product managers, and designers on real features
• Participate in code reviews to learn best practices and improve your skills
• Help troubleshoot and fix bugs in live systems
• Learn how financial technology products scale and evolve over time
• You may have the opportunity to explore one of our engineering focus areas: Customer Communication (email, SMS, mail systems) Identity (managing customer data securely) Decisions (automated underwriting and marketing lead systems) Portfolio Management (lifecycle of lending/banking products and payment integrations)

Software Engineer Intern

Marketing

• Assist with the execution of multi-channel marketing campaigns, including email, social media, and web initiatives
• Manage and schedule content across social media platforms (Facebook, Instagram, LinkedIn, X/Twitter, TikTok, YouTube), ensuring consistent brand voice and engagement
• Monitor and analyze conversion funnels for various marketing channels, developing knowledge of KPIs, performance benchmarks, and targets
• Conduct market research to support new outreach campaigns and creative initiatives
• Collaborate with other departments (e.g., customer service) to identify customer pain points and opportunities for improving the customer experience
• Assist with A/B testing initiatives and evaluate results to optimize campaign performance
• Prepare reports and dashboards to help colleagues, vendors, and senior management monitor marketing performance
• Support the digital content team with content creation, positioning, and distribution to increase engagement and customer value
• Help update and maintain website content and landing pages
• Work directly with a variety of internal departments to drive projects to execution and assist with external vendor relationships

Marketing Intern

• Monitor key funnel metrics through reports and dashboards to track channel performance, diagnose deviations, and surface root-cause insights
• Use SQL and Python to analyze funnel trends, quantify drop-off drivers, and provide recommendations to optimize
• Communicate concise and actionable business strategy recommendations to senior management
• Update and maintain DBT data models in Snowflake to enhance and streamline reporting for marketing dashboards
• Build, update, and maintain Periscope dashboards – adding new charts and metrics to improve visibility across the marketing funnel
• Partner with Marketing, Risk, and Engineering to implement strategy changes, monitor releases, and conduct post-release impact analysis

Marketing Analytics Intern

Data Scientist

• Build predictive models to optimize lending decisions by using advanced statistical modeling and simulation techniques
• Use advanced data analytics to understand consumer risk behavior trends, their impact on the portfolio, and resulting business opportunities
• Establish key performance metrics and develop automated reporting dashboards using SQL and Python
• Design A/B testing for models and underwriting strategies, evaluate impact, and provide recommendations

Data Scientist Intern

Compliance

• Assist in building and organizing compliance documentation (e.g., regulatory requirements library, audit prep materials, risk registers).
• Support audit readiness by collecting, organizing, and indexing evidence.
• Contribute to vulnerability management workflows by analyzing scan outputs, categorizing issues, and tracking remediation.
• Research emerging attack vectors and assist in drafting plain-language summaries for leadership.
• Use SQL and Python to support compliance testing, including pulling population samples and formatting data.
• Help with compliance testing projects, such as validating email notices, disclosures, or credit policy checks.
• Draft playbooks, process maps, or how-to guides to document internal compliance/security workflows.

Compliance Intern

Accounting Manager

• Learn about the unsecured consumer lending space in a fast-paced environment
• Prepare journal entries, financial statement analysis and account reconciliations
• Reconcile high-volume cash transactions and research reconciling items in loan management system
• Assist in streamlining of accounting processed and procedures
• Support Accounting Manager with strategic projects
• Track real-time performance of the loan portfolio using SQL-based data visualization tools
• Serve as support for the members of the Accounting team

Accounting Intern

Customer Support

• Guide applicants through the loan approval process on various products and support the day-to-day operations of a customer’s loan life cycle
• Take care of our customers and prospective customers by handling their inquiries of all types
• Handle and initiate inbound and outbound support requests via phone calls, e-mails, or chat
• Keep customer records meticulously updated with accurate information for every action and interaction taken on a customer loan
• Ensure you are moving applications to a final state and support all of them throughout their application journey
• Call on pending loan applications to help convert into customers and assist where they might need assistance
• Review and evaluate client’s financial documents and research financial history
• Uphold and adhere to strict compliance policies, procedures and regulatory guidelines and achieve company standards for quality and responsiveness, as well as local, state, and federal laws and regulation