[Remote] Full Stack Engineer

Note: The job is a remote job and is open to candidates in USA. Spark Tek Inc is seeking a Full Stack Engineer to help build and evolve the TSM Portal, a client device management platform for provisioning, monitoring, and troubleshooting cellular and eSIM devices at scale. The role focuses on Angular front-end development, SQL Server data work, analytics and visualizations, and implementing .NET API changes across the full stack.

Responsibilities

• Build and maintain features in a large-scale Angular application (Angular 21, TypeScript, RxJS, PrimeNG) used daily by device-provisioning and network-operations teams
• Design and query against SQL Server — writing performant queries, stored procedures, working with EF Core-backed data (via the C# backend team), and shaping data models for reporting and analytics
• Develop data visualizations and map-based views (device location, network events, coverage) using tools like Leaflet and D3.js
• Implement the .NET/Clean Architecture API layer (controllers, services, EF Core) when front-end features need new or modified endpoints. Ability to own the full stack slice of a feature
• Contribute to the app's localization (English/Spanish), micro-frontend (Module Federation) architecture, and automated test suites (Jasmine/Karma, Playwright)
• You can independently pick up a feature request that spans an Angular UI, a SQL Server-backed data set, and (with backend support) an API change
• You can look at operational/device data and proactively suggest or build analytics/visualizations that help teams spot problems faster
• You write maintainable, tested code and are comfortable navigating a large, long-lived enterprise codebase

Skills

• Angular— production experience with Angular (v17+), TypeScript, RxJS, component-based architecture, and reactive forms. Experience with signals and standalone components is a plus
• AI / Applied Data Analytics— experience using AI/ML techniques (or LLM-based tooling) to analyze data, detect patterns/anomalies, or build assistive features — and general strength in analyzing and summarizing data for stakeholders
• C# / .NET— the backend is a .NET 8 Clean Architecture API (EF Core, MediatR, Fluent Validation, xUnit) backed by SQL Server; prior C# experience means you can work up and down the stack independently
• SQL Server— strong SQL skills: writing and optimizing queries, understanding indexing/performance basics, working with relational schemas at scale
• Map/geospatial visualization — experience with Leaflet, MapBox, or similar libraries for rendering device/network data on interactive maps
• Experience with micro-frontend architectures (Module Federation), D3.js, or PDF/Excel export tooling (jsPDF, xlsx)
• Angular performance (zoneless applications, standalone components, on push change detection, and signal-based flows)
• Familiarity with CI/CD pipelines (Jenkins), containerized deployments (Docker/Kubernetes/Helm), or enterprise message buses

Company Overview

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