Top Senior C++ Jobs in Philadelphia, PA

Design, develop, and field high-performance Ground Control Station and C2 software using C++/Qt/QML and QGroundControl. Lead architecture and technical direction, mentor engineers, define APIs/ICDs, debug integration/latency issues, support field tests, implement post-mission debrief tools, and ensure interoperability with C2 standards.

Develop and enhance software in C++ on Linux, create analytical tools for financial data, and collaborate with research analysts.

Develop software and enhance systems in C++ on Linux, while collaborating with analysts and engineers to create data processing tools.

Leads instrumentation and controls engineering design for small to medium projects, including programming, planning, detailed design, construction documentation, and administration. Develops automation control systems with controllers, HMIs, workstations, and servers; manages discipline budgets, coordinates clients and project partners, leads quality reviews, supports proposals, performs field surveys, writes specifications, and mentors junior engineers.

Design, build, and maintain scalable full-stack web applications using React, Python, Node.js, and C#. Develop cloud-native AWS solutions with event-driven and serverless architectures, manage relational and NoSQL data stores, write automated tests, maintain infrastructure as code, and contribute to CI/CD pipelines. Collaborate with cross-functional engineering teams on architecture, security, performance, and end-to-end feature delivery in an agile environment.

Develop and maintain end-to-end applications using Python, Node.js, C#, and React. Build scalable backend services, frontend features, APIs, cloud-native AWS solutions, automated tests, infrastructure as code, and CI/CD pipelines. Collaborate with cross-functional engineering teams in an agile, remote environment while contributing to architecture and reliable product delivery for US clients.

Design, implement, and maintain high-quality C++ (C++17/20) robotics software. Improve build systems (CMake), configure GitLab CI/CD, maintain Linux development environments, write unit/integration tests, profile and optimize performance, collaborate with controls and hardware engineers, participate in code reviews, and support tooling and CI infrastructure to keep development fast and reliable.

Develop user interface components for ArcGIS Pro using C# and WPF, work in an agile team, and design software solutions for raster and imagery processing.

Build and maintain scalable, cloud-native APIs using .NET. Enhance core platform components, lead architecture and testing discussions, optimize telemetry and performance, collaborate cross-functionally, conduct code reviews, and mentor team members.

You will develop and maintain components of the LLVM based toolchain, collaborating with the community while ensuring platform-specific optimizations and tests.

Seeking a Senior iOS Developer to design and build high-performance iOS applications. Requires 5+ years in iOS development with Swift and Objective-C, experience with REST services, and skills in data persistence frameworks. Occasional travel may be needed.

Develop and maintain C++ UI applications on UNIX; apply OOP design, database knowledge, and security concepts (SSO, XSS, SQL injection). Lead small teams, work flexible hours, and communicate technical solutions.

As a Sr. Software Engineer at Bloomerang, you will lead technical direction, mentor engineers, and enhance SaaS solutions while utilizing .NET and AI tools. You will ensure scalable, maintainable applications, advocate for Agile workflows, and focus on quality outcomes in software development.

Develop and maintain .NET Core trading systems for Linux with service-oriented architecture and multi-threaded processing. Implement async, lock-free structures and distributed systems, write unit and integration tests, optimize SQL queries, design data structures and algorithms, and work with communication protocols (SignalR, gRPC, HTTP). Use PostgreSQL, Docker, and AWS in the deployment stack.

Develop and optimize ultra-low-latency, high-performance trading infrastructure in modern C++. Implement and tune order execution, market data connectivity, multi-threaded systems, and risk modules. Profile and benchmark real-time systems, collaborate with quants and traders, and maintain robust, fault-tolerant continuous trading operations.

Lead design and delivery of complex backend features for a high-scale online banking platform. Own code from design to production, modernize legacy systems, develop microservices, design APIs, implement tests, ensure secure coding, use AI-assisted tools, troubleshoot issues, and document APIs while collaborating with product, QA, and front-end teams.

Design high-performance C++ libraries for automated PCB design challenges, mentoring peers and shaping technical direction while collaborating with experts in various fields.