Junior Software Engineer

Junior Full Stack Developer – AI Analytics Platform (FinTech).We’re partnered with an innovative fintech business building a cutting-edge AI-driven analytics platform for the financial services sector. They’re looking for a motivated Junior Full Stack Developer to join their growing engineering team. This is a great opportunity to work with modern technologies across both backend and frontend development, while gaining valuable exposure to quantitative finance applications and cloud infrastructure.The Role:You’ll be involved in developing both the Python-based calculation engine and the React frontend, as well as contributing to the AWS infrastructure that powers the platform. The position offers a broad scope — from API development and database optimisation, through to building responsive UIs and supporting real-time market data integrations.Key ResponsibilitiesDevelop and maintain RESTful APIs for portfolio risk and analytics using Python and FastAPIBuild responsive React components for visualising financial data and portfolio managementImplement data validation and type safety with Pydantic models and TypeScriptWrite unit and integration tests to ensure high-quality backend servicesAssist with database schema design and optimisation (SQLAlchemy/SQLModel)Support deployment and monitoring across AWS infrastructureContribute to real-time market data integrations and caching strategiesParticipate in peer code reviews and uphold quality standards (pyright, ruff, etc.)Core SkillsPython 3.10+ with a basic grasp of async/await patternsReact, JavaScript/TypeScript, HTML/CSSREST API design principles and JSON handlingSQL fundamentals, ideally PostgreSQL or similarGit workflows and collaborative version controlBasic unit testing experienceFamiliarity with npm/yarn and pip/uv for package managementNice to HaveExperience with FastAPI, Flask, or DjangoUnderstanding of Docker and containerisation workflowsExposure to AWS services (EC2, RDS, Lambda, CloudWatch)Knowledge of Redis or caching techniquesExperience with data visualisation libraries (Chart.js, D3.js, Recharts)Why Apply?Work with modern tools and frameworks in a live fintech environmentGain hands-on experience with both backend and frontend developmentExposure to AWS and real-time financial data applicationsCollaborative, supportive team culture with strong technical mentorshipContact Ciara Clarke at Harrington Starr for a confidential discussion on this role.