full stack engineer jobs in Philadelphia

AfterQuery is looking for experts with experience in software engineering, computer science, or app/web development to help train and evaluate AI models. This is a remote, project-based role: qualify once through a single assessment and receive ongoing project matches spanning code review, evaluation, and original task creation. Pay ranges from $50 to...

About Sunthetics Sunthetics is a no-code platform for AI-guided experimentation that allows chemical R&D teams to reach better results in record time. Our AI engine learns from as few as five data points, runs transparently rather than as a black box, and requires no data-science expertise to use. Teams at companies like Merck, FMC, and J-STAR use Sunthetics...

Berkshire Hathaway companies power some of the most critical systems in North America—spanning transportation, energy, logistics, manufacturing, retail, and infrastructure. At BRK Tech, we partner across these businesses to design, build, and operate modern technology platforms that run at massive scale and support long‑term, real‑world impact. One of...

Enterprise AI (EAI) builds AI products that combine real modelling work with user-facing applications, and ships them to production. Full Stack Engineers move across data, models, platforms, APIs and interfaces in a single workflow. In our operating model, digital workers do much of the hands-on build. They generate services, APIs, interface components and...

Enterprise AI (EAI) builds AI products that combine real modelling work with user-facing applications, and ships them to production. Full Stack Engineers move across data, models, platforms, APIs and interfaces in a single workflow. In our operating model, digital workers do much of the hands-on build. They generate services, APIs, interface components and...

Enterprise AI (EAI) builds AI products that combine real modelling work with user-facing applications, and ships them to production. Full Stack Engineers move across data, models, platforms, APIs and interfaces in a single workflow. In our operating model, digital workers do much of the hands-on build. They generate services, APIs, interface components and...

Enterprise AI (EAI) builds AI products that combine real modelling work with user-facing applications, and ships them to production. Full Stack Engineers move across data, models, platforms, APIs and interfaces in a single workflow. In our operating model, digital workers do much of the hands-on build. They generate services, APIs, interface components and...

This position supports a U.S. federal government contract requiring U.S. citizenship and eligibility to obtain a Public Trust clearance. ABOUT THE ROLE iAdeptive Technologies is looking for a Lead Portal Engineer to own a user-facing portal end-to-end — the front-end architecture, the APIs and services behind it, and the human-centered design process...

About Athos Six months ago Athos was an idea. Today it's a bootstrapped company past $1M ARR, and it's growing fast. No VC money; customers pay for it. We build AI for sales reps in the insurance industry. Reps practice against realistic AI voice personas, get coached in real time during live calls, and every real call they make is transcribed, analyzed and...

Cheez ( is a new app that sends you the pictures that your friends take of you, powered by facial recognition. Responsibilities: Collaborate with product and design teams (ex-Google/FB/Apple/Microsoft) to develop, test, and launch new features and improvements for our consumer social app. Write clean, maintainable, and scalable code using modern web...

Position: Senior Full Stack Software Engineer - (NodeJS, AWS, Javascript) Location: 100% Remote Duration: Long Term Contract Required Skills: Designs, Builds, tests, deploys and maintains production code for complex web-based applications using Cloud technologies and micro-services with AWS services. Expert level experience in NodeJS and scripting in...

Position: Sr. Java Full Stack Engineer Location: Remote (USA) Office location Jersey City, NJ Must-Have Skills: Java & Spring Boot Development KDB+ / q Language Experience FIX Protocol / FIX Engine AWS Cloud Capital Markets / Trading / Brokerage Domain Experience Highly Preferred (Top Priority): Low-Latency Trading Systems Kafka or 29West Messaging...

Title: Lead Full Stack Engineer Company: ZobeLab, Inc. Location: Remote (United States) Opportunity Type: Equity-only (until investor funding secured for startup) | Fractional or Part-Time with opportunity to transition into full-time salary role upon funding secured for startup | 4 year vesting & 1 year cliff vesting schedule for equity Industry: ...

Title: Full Stack Software Engineer (Java/Kotlin, Angular) - Remote Duration: 12 Months with potential to extend and to convert to full-time Location: Remote Schedule: Monday–Friday, 8 AM–5 PM or 9 AM–6 PM PST Only W2 candidates are eligible for this position. Third-party or C2C candidates will not be considered. Description: · Participate in daily...

Mid-Level Full-Stack Developer $55/hr - $59/hr 12 Month Contract (W-2) 100% Remote We are seeking a Mid-Level Full Stack Software Engineer to join a high-impact Agile team responsible for building and scaling a large, enterprise healthcare platform. This is a hands-on engineering role where you'll contribute to the design, development, and deployment of...

About Ascendion Ascendion is a full-service digital engineering solutions company. We make and manage software platforms and products that power growth and deliver captivating experiences to consumers and employees. Our engineering, cloud, data, experience design, and talent solution capabilities accelerate transformation and impact for enterprise clients....

Principal Full Stack Engineer Location: Remote, South Florida Local Preferred Department: Engineering Reports to: VP of Engineering About Us Qolo’s mission is to help businesses navigate today’s complex payments and financial transactions landscape. We empower organizations to manage payments efficiently while driving growth and reducing costs. Qolo...

Title: Full Stack Software Engineer (Java/Kotlin, Angular) - Remote Duration: 12 Months with potential to extend and to convert to full-time Location: Remote Schedule: Monday–Friday, 8 AM–5 PM or 9 AM–6 PM PST Only W2 candidates are eligible for this position. Third-party or C2C candidates will not be considered. Description: · Participate in...

Enterprise AI (EAI) builds AI products that combine real modelling work with user-facing applications, and ships them to production. Full Stack Engineers move across data, models, platforms, APIs and interfaces in a single workflow. In our operating model, digital workers do much of the hands-on build. They generate services, APIs, interface components and...

Title: Lead Full Stack Engineer Company: ZobeLab, Inc.Location:Remote (United States)Opportunity Type: Equity-only (until investor funding secured for startup) | Fractional or Part-Time with opportunity to transition into full-time salary role upon funding secured for startup | 4 year vesting & 1 year cliff vesting schedule for equityIndustry: MusicTech |...