Top Software Engineer Jobs in Philadelphia, PA

Contract frontend engineer to build and maintain a Sanity-backed Next.js order page platform. Responsibilities include component development, Sanity Studio schema work, end-to-end test ownership (Playwright or similar), routing and architecture improvements, performance optimization, and supporting A/B testing and monitoring. Work closely with marketing, product, and engineering on a high-traffic, revenue-critical purchase flow and participate in on-call and CI/CD processes.

Lead and own the frontend for a perpetuals exchange using TypeScript and React. Design order entry, positions, pricing displays, and charts, make trader-focused UX decisions, and operate autonomously on a small, fast-moving team.

Senior technical leader owning the 6–12 month engineering strategy for the Salesforce platform. Lead Salesforce feature delivery, integrations, DevOps (Copado), and AI capabilities (Agentforce, Prompt Builder). Establish architecture, code quality, and deployment governance; manage and mentor an engineering team; collaborate with Product and Business stakeholders to translate requirements into scalable solutions.

Design, build, and maintain backend services in TypeScript for millions of users; develop full‑stack features with React/React Native; participate in code reviews; provide technical leadership, mentorship, and architecture guidance; collaborate with PM and design; use monitoring/metrics and Agile practices to deliver scalable, user-focused products.

Provide technical leadership for sustaining and modernizing a portfolio of .NET web applications and reports. Develop and modernize code (C#, ASP.NET Core, .NET 4.8), migrate SSRS to Power BI and WebForms to ASP.NET Core, design Azure cloud infrastructure (Databricks, Synapse, Functions, App Services), maintain SQL Server/T-SQL databases, ensure security/ATO compliance and accessibility, and mentor junior developers on task-based government assignments.

Lead design and delivery of scalable, secure backend platform services. Build services in C# or TypeScript, work with SQL/NoSQL databases (PostgreSQL preferred), maintain CI/CD and IaC, optimize performance and reliability, apply security best practices, mentor engineers, collaborate cross-functionally, and shape long-term platform architecture and engineering standards.

Lead cloud-native architecture for enterprise SaaS: design, develop, and deploy scalable microservices, APIs, frontend apps, CI/CD pipelines, and integrations; drive security-by-design, performance engineering, cost optimization, incident triage, documentation, and mentor engineering teams while aligning architecture to product goals.

Develop, maintain, and scale user-focused web and mobile applications. Write clean HTML/CSS/JavaScript, integrate back-end services and databases, collaborate with designers, document solutions, apply security and best practices, and stay current with web technologies.

Lead ServiceNow platform architecture and governance, define standards and CI/CD pipelines, design secure integrations with ERP/HR/security/data-protection systems, guide development partners, and drive automation using Flow Designer, IntegrationHub, and Orchestration across ITSM/ITOM/SecOps modules.

Design, build, and maintain scalable web applications for payroll and accounting. Collaborate with engineers and product partners, write tested code, participate in code reviews, contribute to architecture, improve CI/CD and monitoring, support production (including on-call), and communicate progress while continuously learning.