senior back end software engineer jobs in Philadelphia

3,754 senior back end software engineer job listings in United States. Find daily updated positions from leading job boards.

  • Back-End Engineer

    11 hours ago


    Philadelphia, Pennsylvania, United States Delphinus Engineering Full-time $75,000 - $125,000 Contract

    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...

  • Senior Java Developer

    11 hours ago


    Philadelphia, Pennsylvania, United States Nexonia Full-time

    Are you looking to join an exciting high-tech company that is focused on delivering exceptional products for a global customer base? How would you feel about joining a company whose core culture embraces change, rewards creativity, and promotes dialogue with employees? If you are looking to join a company that values its employees and promotes an amazing...


  • Philadelphia, Pennsylvania, United States Exit83 Full-time

    Company DescriptionEXIT83, a leader in custom software development and AI innovation, delivers advanced software solutions for strategic, growth-focused initiatives. Positioned at the nexus of business and technology, our presence spans 12 countries, reflecting our global commitment to delivering cutting-edge technologies. With nearly 20 years of...


  • Philadelphia, Pennsylvania, United States Proscia Full-time

    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...


  • Philadelphia, Pennsylvania, United States Curotec Remote Full-time

    Job descriptionAbout Curotec:We are a globally leading software services company specializing in developing enterprise-level projects for clients worldwide.Our team is a unique blend of diverse skill sets, cultures, and backgrounds—a true melting pot of talent. One of the most rewarding aspects of working at Curotec is the opportunity to learn something...


  • Philadelphia, Pennsylvania, United States Curotec Remote Full-time

    Job descriptionAbout Curotec:We are a globally leading software services company specializing in developing enterprise-level projects for clients worldwide.Our team is a unique blend of diverse skill sets, cultures, and backgrounds—a true melting pot of talent. One of the most rewarding aspects of working at Curotec is the opportunity to learn something...


  • Philadelphia, Pennsylvania, United States Perpay Full-time $160,000 Contract

    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...


  • Philadelphia, Pennsylvania, United States Perpay Full-time $160,000 Contract

    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...


  • Philadelphia, Pennsylvania, United States Elsevier Full-time $86,600 - $144,400 Contract

    Senior Software Engineer I – Search and AI Platform About the Team Our team is dedicated to unlocking the rich knowledge embedded within Elsevier’s content through our rich data platform; this empowers researchers, clinicians, and innovators worldwide to gain new insights, make informed decisions, and accelerate progress across research, healthcare,...


  • Philadelphia, PA, Philadelphia County, PA; Pennsylvania, United States Prestige Staffing Full-time

    Pay: Competitive Salary Location: Remote (Business hours: EST) Summary Join a fast-growing GenAI team as a Senior Software Engineer, specializing in building advanced Python and AWS microservices for AI-powered healthcare solutions. Lead the development of scalable, cloud-based AI systems that drive innovation in clinical trial data and healthcare...


  • Philadelphia, PA, United States Prestige Staffing Full-time

    Pay: Competitive SalaryLocation: Remote (Business hours: EST)SummaryJoin a fast-growing GenAI team as a Senior Software Engineer, specializing in building advanced Python and AWS microservices for AI-powered healthcare solutions. Lead the development of scalable, cloud-based AI systems that drive innovation in clinical trial data and healthcare workflows....

  • Senior Specialist

    12 hours ago


    Philadelphia, Pennsylvania, United States ADTM Adenza Technology de Mexico S de RL de CV Full-time $10,000 Temporary

    As a Sr. Specialist Software Engineer reporting to the VP - Software Engineering, you'll play a critical role in developing and maintaining the technology that powers Nasdaq's Derivatives Market System. You'll work on real-time, mission-critical platforms that demand high throughput, minimal latency, and exceptional reliability.You'll thrive in this position...


  • Philadelphia, Pennsylvania, United States Perpay Full-time $160,000 Contract

    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...


  • Philadelphia, New Jersey, United States CoreWeave Full-time $153,000 - $204,000 Contract

    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...


  • Philadelphia, Pennsylvania, United States Transamerica Full-time $94,000 - $115,000 Contract

    Job FamilyIT - DevelopmentAbout Us  At Transamerica, hard work, innovative thinking, and personal accountability are qualities we honor and reward. We understand the potential of leveraging the talents of a diverse workforce. We embrace an environment where employees enjoy a balance between their careers, families, communities, and personal...


  • Philadelphia, PA, United States RELX Full-time

    Senior Software Engineer I – Search and AI Platform About the Team Our team is dedicated to unlocking the rich knowledge embedded within Elsevier’s content through our rich data platform; this empowers researchers, clinicians, and innovators worldwide to gain new insights, make informed decisions, and accelerate progress across research,...


  • Philadelphia, PA, Philadelphia County, PA; Pennsylvania, United States Levi, Ray & Shoup Full-time

    Codeworks, an LRS company, is seeking a Senior Software Engineer for a directhire, fully remote opportunity supporting one of our client partners. This role offers the opportunity to contribute to the development of modern, cloudbased SaaS solutions within a collaborative and distributed engineering team. Our client is seeking a Senior Software Engineer to...


  • Philadelphia, Pennsylvania, United States Zivtech Remote Full-time $90,000 - $110,000 Contract

    About Zivtech Zivtech is a Philadelphia-based technology services firm that designs and builds thoughtful, durable web products. Our clients range from startups to large non-profits to Fortune 500 companies. We work primarily with mission-driven organizations and long-lived platforms where quality, clarity, and maintainability matter. We’re a distributed...


  • Philadelphia, Pennsylvania, United States Roberts Recruiting Full-time

    Job Overview We are a fast-growing healthcare technology company that is committed to delivering innovative solutions that help healthcare providers with the burden of prior authorization to improve access to high quality, affordable healthcare. We were founded in 2022 by five healthcare professionals with over 60 years of combined industry experience.You...


  • Philadelphia, Pennsylvania, United States RELX Full-time $95,300 - $158,800 Contract

    Senior Software Engineer AI Agents · Wellsheet at ElsevierAbout Wellsheet at Elsevier: Wellsheet 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...