react frontend engineer jobs in Philadelphia

Remote Sr or Staff Engineer ($150-$230k) Ruby, Rails, Claude Permanently 100% Remote Job Title: Remote Sr or Staff Software EngineerSalary: $150k-$230k Base + Benefits, 401k, PTORequirements: Ruby/Rails or Python/DjangoOur Tech Stack: Ruby/Rails, AWS, React, TypeScript, Ansible, Terraform, CloudFormation, Linux, Postgres We recently closed out Series C...

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to...

Company DescriptionAbout us:Oncora is an oncology software and data company dedicated to helping physicians and scientists collect and use real-world data to improve outcomes for cancer patients. Our machine learning algorithms, which are deployed in active clinical environments, accurately predict oncology outcomes such as unplanned hospitalization,...

We’re looking for a “Lead Visualization Engineer” with hands-on expertise in Deck.gl, React, JavaScript, HTML/CSS, and SQL to lead high-impact, interactive visualizations.   🚨 Position: Lead Visualization Engineer 📍 Location: Philadelphia, PA (Day 1 onsite) ⏳ Duration: Long Term   ✅ Must Have: 7+ yrs in Deck.gl, React, JavaScript,...

The MongoDB Atlas team is a diverse group of contributors working together to help our users manage MongoDB at global scale. We are responsible for MongoDB Atlas: our database as a service offering and fastest growing product which allows users to deploy fault-tolerant, globally distributed MongoDB clusters in just minutes.We're seeking a Senior Engineer to...

About Proscia Proscia is revolutionizing pathology, the last major frontier in healthcare to embrace digital. As a leader in pathology AI software, we are empowering pathologists and scientists to transition from traditional microscope-based workflows to digital, AI-driven approaches, unlocking new possibilities in precision medicine. The digital pathology...

We are looking for anArchitect / Principal Software Engineerto lead the technical direction of our AI Engineering pods. You will split your time between hands-on engineering (about 30% to 40% prototyping core workflows, building reference implementations, and reviewing code) and higher-level system architecture, technical standards, and mentorship across...

Job Description: Penn Mutual is seeking a Senior DevOps Engineer (Internal Title: Senior Site Reliability Engineer) to help evolve reliability practices across business-critical systems in a highly regulated financial services environment. This role is a hands-on technical leader responsible for designing, implementing, and advancing reliability across...

About Us: Perpay is a certified B Corp and Philadelphia’s most impactful growth-stage startup. We are driven by a mission to significantly improve the financial stability of everyday Americans. For the past decade, we have established strong product-market fit and a profitable, efficient operating model across a suite of products, positioning Perpay as the...

The Data Engineer designs, builds, and maintains reliable data pipelines, models, dashboards, and cloud data infrastructure that transform diverse source data into trusted, reusable data products for analytics, research, AI, and business decision-making. This role applies SQL, Python, modern data engineering practices, visualization tools, and AI-assisted...

HHAeXchange is the leading technology platform for home and community-based care. Founded in 2008, HHAeXchange was born out of an idea to create an end-to-end homecare solution to help people who are aging or have disabilities thrive in their homes and communities. Our employees are passionate about transforming the healthcare space by building the only...

Senior Full Stack EngineerAs a Senior Full Stack Engineer within our digital engineering team, you help design and deliver customer facing digital applications at scale, building the experiences that bring Chubb Personal Risk Services' promise to life for the agents who champion our clients, the clients who trust us, and the internal teams who deliver on...

Pariveda is a North American-based, employee-owned professional services firm. We provide strategy and technology services across industries. As a mission-driven organization and Certified B Corp, we enable our clients to imagine and do more, whether it’s making next quarter’s goals or navigating the future. From ideas to impact, we help clients get...

Job Description: AI and Advanced Algorithms Engineer Overview Are you passionate about artificial intelligence and eager to contribute to a groundbreaking project that merges cutting-edge technology with the dynamic world of entertainment? We are seeking a highly skilled AI and Advanced Algorithms Engineer to join our team in developing an innovative AI...

Position Overview:We are seeking an experienced Senior Backend Engineer with strong Java expertise to join our growing engineering team. The ideal candidate will have a deep understanding of building scalable, resilient, and high-performance backend systems. This individual will collaborate closely with cross-functional teams, helping shape the future of our...

Company DescriptionNfinity is a business consulting solutions provider offering strategy and technology focused services to both the public and private sectors. We inspire our customers by providing innovative and cost-effective solutions that transform their operations.We work collaboratively with our clients, and consistently strive to exceed...

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to...

About FSHFSH Tech builds modern software that just works for the public sector. When we deliver, taxpayer dollars go further, agencies move faster, and millions of Americans get tangibly better service and quality of life.Local governments, schools, libraries, and emergency services run on brittle software that was built decades ago. This results in wasted...

About FSHFSH Tech builds modern software that just works for the public sector. When we deliver, taxpayer dollars go further, agencies move faster, and millions of Americans get tangibly better service and quality of life.Local governments, schools, libraries, and emergency services run on brittle software that was built decades ago. This results in wasted...

SALARY RANGE: $75,000 - $125,000 per year In determining compensation, various factors will be considered, including but not limited to, educational background; relevant experience, knowledge, skills, and abilities, market factors; and geographic location. BENEFITS: All eligible full time employees will receive Paid Annual Leave (PAL) starting at 23 days...