ruby on rails full-stack engineer jobs in Philadelphia

Senior Software Engineer - Ruby on Rails with Sidekiq About the role You will build the platform API alongside the squad lead: own endpoints, contracts, and the extraction work that turns internal seams into a real interface. You will also be building the internal tooling for managing the platform, frontends included: vocabulary mapping, data quality,...

Senior Software Engineer Platform · Full-Time, Onshore · Remote (United States) · Reports to Lead Engineer About Karias Health Karias is a first-of-its-kind health benefits platform. We combine the financial power of self-funding with a consumer-first, AI-enabled navigation ecosystem. We integrate health coverage, cost containment strategies,...

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...

Title: Senior Full-Stack TypeScript Engineer Location: 100% Remote Target Start Date: ASAP Type: Contract Position Overview We are seeking an experienced Senior Full-Stack TypeScript Engineer with demonstrated experience building enterprise-grade commercial software over multiple years. This individual will be responsible for developing full-stack...

Career Fulfillment & CulturePeople come to work for Deque because of what we do: enable businesses and organizations to make their sites and apps accessible to everyone, including people with disabilities. The personal fulfillment employees feel here is unparalleled. In addition to the altruistic nature of our jobs, the organizational structure is extremely...

Industry/Sector Not Applicable Specialism Application / Solution Architecture Management Level Manager Job Description & Summary The Opportunity As a Manager, Full Stack AI Engineer - AWS you will lead the design, development, testing, and modernization of AWS-native applications across the software development life cycle within our Advisory practice. As...

Software Engineer II- Full-stack Developer Engineering and Product | Software Engineering Atlanta, Georgia, United States Boston, Massachusetts, United States Charlotte, North Carolina, United States Chicago, Illinois, United States Cincinnati, Ohio, United States Cleveland, Ohio, United States Columbus, Ohio, United States Costa Mesa, California, United...

Job Title: Software Engineer - Full Stack Location: Philadelphia, PA (Hybrid)Responsibilities: Creating optimal data pipelines using Apache Airflow DAGs, Docker, AWS, Python or Snowflake Assembling large, complex sets of data that meet non-functional and functional business requirements Designing modern, interactive, user-friendly web apps (UI) using React,...

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...

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...

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...

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...

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...

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...

Senior Software Engineer Ai AgentsWellsheet is a clinical decision support platform used by more than 20,000 providers across 100+ hospitals. We embed directly in the EHR (Epic, Cerner, Athena) and put AI-generated clinical context in front of clinicians at the bedside. In 2026 Wellsheet became part of Elsevier's Clinical Solutions group, and we're now...