founding software engineer jobs in Philadelphia

6,435 founding software engineer job listings in United States. Find daily updated positions from leading job boards.


  • Philadelphia, PA, United States Jobrapido Full-time

    Founding Software Engineer Who we are and what we’re building DMC’s mission is to cut the cycle time from concept to a manufacturable design by 10-100x. Momentum is a software platform we are developing to achieve that goal by changing the shape of the workflow from serial to parallel. We are building this platform alongside real aerospace companies...

  • Founding Engineer

    3 days ago


    philadelphia, pennsylvania, United States June Point Lending Full-time

    Founding Engineer Reporting to: William DeVar, Technical Co-Founder Location: Richmond VA (Preferred), Open to exceptional NYC or Remote candidates About June Point Lending June Point Lending is making homeownership possible and more accessible for a creditworthy but underserved segment of the market: business owners, self-employed workers, and real estate...


  • Philadelphia, PA, United States DocLoop Health Full-time

    Remote (US) or Miami · 6+ hours overlap with Eastern About DocLoop DocLoop is the AI operating system for cash-pay practices in longevity, hormone, peptide, functional, and concierge medicine. Our mission is to give physicians their practice back. About 4 in 5 US physicians now work for a hospital, health system, or corporation. Many of those who go out...

  • Founding Engineer

    4 days ago


    philadelphia, pennsylvania, United States Inlet Full-time

    About Inlet Inlet is building automatic time-tracking software for legal professionals. Lawyers and paralegals track their work in six-minute increments. That means either constantly stopping to record work or reconstructing it later from emails, documents, and memory. It is tedious and impossible to do perfectly. When billable work slips through the...

  • Founding Engineer

    4 days ago


    Philadelphia, PA, United States Jobrapido Full-time

    About Inlet Inlet is building automatic time-tracking software for legal professionals. Lawyers and paralegals track their work in six-minute increments. That means either constantly stopping to record work or reconstructing it later from emails, documents, and memory. It is tedious and impossible to do perfectly. When billable work slips through the...


  • Philadelphia, PA, United States Disability Solutions Full-time

    Founding Security Engineer | Series B Dev Infrastructure Company | RemoteMost \"security engineer\" job posts are lying to you. They say \"wear many hats\" and mean \"inherit five years of someone elses backlog.\" This ones different: youd be employee #1 in security at a fast-growing, well-funded Series B developer infrastructure company whose product sits...


  • philadelphia, pennsylvania, United States Staffing Science Full-time

    Founding Security Engineer | Series B Dev Infrastructure Company | Remote Most \"security engineer\" job posts are lying to you. They say \"wear many hats\" and mean \"inherit five years of someone else's backlog.\" This one's different: you'd be employee #1 in security at a fast-growing, well-funded Series B developer infrastructure company whose product...


  • philadelphia, pennsylvania, United States QualGent Full-time

    About QualGent QualGent answers the question every mobile team asks before they ship: \"What's wrong with my app that I don't know about yet?\" We're an ex-Google, YC-backed team of 10 building the verification layer for mobile apps. As coding agents write more of the app, someone still has to catch what they miss before users do. We combine AI with expert...

  • Software Engineer

    9 hours ago


    Philadelphia, PA, United States Origami Full-time

    Company Description Origami is a sales enablement platform that helps teams find and connect with ideal leads through a simple, prompt-based interface. The product, origami.chat, integrates with over 100 data sources to identify high-quality prospects, enrich lead lists or CSV files, and launch outreach sequences to decision-makers. Sales teams at...

  • Software Engineer

    2 days ago


    philadelphia, pennsylvania, United States Eliassen Group Full-time

    DescriptionRemote in either Cincinnati, OH or Farmington Hills, MIOur client seeks a software engineer to perform full lifecycle application development. The role will design, code, and debug in multiple languages, conduct analysis and reviews, and integrate software with existing systems. The engineer will drive quality assurance, performance tuning, and...

  • Software Engineer

    8 hours ago


    Philadelphia, PA, United States Remolity Full-time

    About the Company Software Engineer (SWE) — Remote Company: Remolity, Inc. Employment Type: Full-Time Work Arrangement: Remote Salary Range: $65,000–$75,000 USD per year About Remolity Founded in 2026, Remolity, Inc. is a technology-driven platform dedicated to making remote work opportunities more accessible, transparent, and easier to navigate. ...


  • Philadelphia, PA, United States Bellhop Labs Full-time

    $12,000 USD per month, plus 1.5% to 3% equity The equity range depends on experience About Bellhop Bellhop is building screenless, voice-first AI hardware designed for older adults. We are an early-stage startup founded by two Stanford alumni. Our investors and advisors include current employees of Apple, Anthropic, OpenAI, Google and Waymo. There...

  • Software Engineer

    2 days ago


    Philadelphia, PA, United States Noblis Full-time

    ResponsibilitiesNoblis MSD is seeking Software Engineers in Philadelphia, PA.Noblis MSD's mission is to support the Naval Sea Systems Command (NAVSEA) and, Naval Surface Warfare Center (NSWCPD) and their missions' to enable research, development, test and evaluation, acquisition, engineering, systems integration, in-service and fleet engineering with...

  • Software Engineer

    2 days ago


    Philadelphia, PA, United States Reply Full-time

    Root16 Reply Job OpportunityAt Root16 Reply, our company is built around two things…our people and our clients. While other firms spend most of their time worrying about things like expanding their footprint and bottom line, we're more concerned about doing what's right for our employees and our clients. We want to do everything in our power to make sure...

  • Software Engineer

    3 days ago


    philadelphia, pennsylvania, United States DocDraft Full-time

    Software Engineer DocDraft is an AI-powered legal platform. We pair AI-generated documents with licensed attorney oversight to make legal services accessible to consumers and small businesses. Our platform handles sensitive client data, real-time AI workflows, and attorney handoffs across a network covering the U.S We're hiring a generalist engineer who can...


  • Philadelphia, PA, United States Vector One Full-time

    About Us VectorOne builds software for the office of the CFO, tailored to the world’s most complicated industries where general purpose accounting tools fall short: oil & gas, infrastructure, real estate, private equity/family office, healthcare, and consumer products/retail. We’re solving messy, complex problems built on systems and processes that tie...

  • Software Engineer

    3 days ago


    Philadelphia, PA, United States Absolute Full-time

    Company Description ABSOLUTE SERVICES INC. is a technology-focused organization that delivers software solutions to support diverse business needs. The company values innovation, reliability, and practical problem-solving, with an emphasis on creating efficient and scalable systems. Team members collaborate remotely, using modern tools and processes to...


  • Philadelphia, PA, United States Jobrapido Full-time

    Principal Software Quality Assurance Engineer United States (Remote) About us Advanced Solutions International is a global software company focused on helping not-for-profits and membership organizations grow revenue, reduce expenses, improve performance, engage and serve members and donors through innovative software solutions. Our portfolio of solutions...


  • Philadelphia, PA, United States Miller Advertising Full-time

    Senior Software Engineer — Legacy Systems & Modernization Part-time freelance/contract opportunity, with potential to grow into a full-time role Miller Advertising is looking for an experienced, hands-on software engineer to help us understand, maintain, improve, and plan the future of an existing internal software platform. Our software supports core...


  • philadelphia, pennsylvania, United States The ReWork Group Full-time

    At The ReWork Group, we partner with high-growth startups and forward-thinking companies to build the future. Our client is building a platform where AI doesn't just analyze data; it reasons across it, forecasts what's coming, and acts on its own. We're looking for their Head of Engineering , the person who owns the backend from the whiteboard to production...