Senior Software Engineer (UI)

Siepe is a fast-growing technology company headquartered in Dallas, TX – focused on helping investment managers turn complexity into clarity. We build software and data solutions that give hedge funds and financial services firms the visibility, speed, and confidence they need to make better decisions – faster. Our platform delivers a unified source of truth that empowers our clients with real-time, actionable insights. We don’t just serve the industry – we help modernize it! Siepe is profitable, privately held, and growing fast. We offer more than just competitive pay and great benefits—we offer the chance to do impactful work alongside sharp, driven teammates in a culture that rewards curiosity, initiative, and follow-through. Whether you come from finance, tech, or are charting a new path, you’ll find meaningful problems to solve, real ownership, and the momentum to grow your career with purpose. Siepe is an AI-first development organization building an enterprise financial services platform. We’re hiring a hands-on Senior Software Engineer to own the next generation of our reporting and analytics UI—the dashboards, charts, grids, and self-service exploration tools our users live in every day. This is a full-stack leadership role, but the differentiator is UI excellence: you know how to turn complex data into fast, intuitive experiences. You’ll lead a small squad, ship continuously, and use AI-enabled engineering practices to move faster without sacrificing correctness. What You’ll Be Doing Organize/build a small development team: plan, break down work, review PRs, coach, and drive delivery, all while staying deeply hands-on. Build polished Angular dashboards highlight data intelligence tools users have come to expect and reporting flows for portfolio, compliance, and operational analytics. Create advanced data exploration experiences using: Highcharts (time-series, drilldowns, heatmaps/treemaps) AG Grid Enterprise (grouping, pivoting, aggregation, filtering, Excel/PDF export) Work across the stack to deliver reporting end-to-end: report-ready datasets → efficient APIs → high-performing UI. Partner with backend/data engineers on data modeling, query optimization, and performance at scale (100K+ rows). Establish standards for report correctness, validation, auditability, and tenant-specific configuration. Build confidence with unit + E2E testing (Playwright) and leverage AI tools to improve velocity and quality. Support production readiness: monitoring, logging, triage, and iterative UX/performance improvements. What You’ll Bring 7+ years building and owning end-to-end product features in production. Strong Angular (12+), TypeScript, and RxJS skills expert-level UI engineering instincts. Proven experience delivering analytics/reporting UIs (dashboards, grids, charting, exports). Strong SQL (SQL Server preferred): aggregation, tuning, report-friendly modeling. Experience designing/consuming REST APIs and collaborating on contracts/performance. Demonstrated ability to lead a small team: coaching, reviews, accountability, delivery focus. Clear communicator who can explain tradeoffs to technical and non-technical stakeholders. Must have current and ongoing authorization to work in the country of employment without the need for visa sponsorship, now or in the future. Technical Stack Frontend: Angular 12+ / TypeScript (legacy AngularJS migration in progress), Angular Material UI/Visualization: AG Grid Enterprise, Highcharts, D3 Backend: .NET 10 / C# (ASP.NET Core Web APIs) Database: SQL Server Tooling: Git, Angular CLI, Webpack, npm/yarn, Playwright Nice to have Extensive experience using AI tools including Claude, Github Copilot, GSD, BMAD, etc Financial services / fintech / investment management experience. Portfolio analytics familiarity (performance, attribution, risk) and time-series visualization. Experience building self-service report builders or visual query tooling. PDF/print workflows and robust Excel export pipelines. Contributions to component libraries or design systems. What We Offer At Siepe, we don’t just hire talent, we build performance-driven teams empowered by transparency, curiosity, and continuous growth. Our Total Rewards go beyond the basics: they’re designed to reward bold thinking, support personal development, and create space for meaningful connection whether you're growing your career, your skill set, or your impact. Compensation & Financial Well-being: - Competitive Compensation Packages, including Annual Performance-Based Bonuses - 401(k) Retirement Plan with company match to support your long-term financial goals - Employee Referral Program – earn rewards for helping us grow our talented team Health & Insurance Benefits - Comprehensive Health, Dental, Vision, and Life Insurance - Flexible plans tailored to support individuals and families Learning & Career Growth - Annual investment in your Learning & Development goals - On-the-job exposure to innovative technologies and financial strategies - Growth opportunities in a collaborative, fast-paced environment that values continuous improvement Time Off & Flexibility - Flexible Time Off (FTO) - Flexibility to recharge and maintain work-life balance In-Office Perks & Culture - Daily meal delivery allowance when working from the office - Monthly Celebrations and Quarterly Offsite Events - Annual Holiday Party to celebrate milestones and build team connection - A vibrant, inclusive office culture that blends fun with purpose