Senior Software Engineer (Onsite)

Mid-Level To Senior Software EngineerJahnel Group's mission is to provide the absolute best environment for software creators to pursue their passion by connecting them with great clients doing meaningful work. This is a full-time position with one of our closest startup clients building an innovative platform focused on economic development, investment intelligence, and AI-driven analytics.We're looking for a highly motivated Mid-Level to Senior Software Engineer who enjoys building products from the ground up and wants meaningful ownership over both the technology and the product.This is an opportunity to join an early-stage engineering team where you'll work directly with the founder, help mentor junior developers, influence technical direction, and build software that has the potential to impact how governments, investors, and businesses make investment decisions.The ideal candidate is comfortable moving quickly, thrives with ambiguity, embraces AI-assisted development, and enjoys collaborating closely with product leadership.The ideal candidate:Builds production-ready software with minimal oversightEnjoys startup environments and high ownershipIs comfortable working across frontend and backend systemsMentors junior developers naturallyThinks beyond individual tickets and considers overall system design and architectureUses AI tools daily to improve engineering productivityCan take features from initial idea through production deliveryCommunicates effectively with both technical and non-technical stakeholdersThrives in an early-stage environment where priorities and requirements can evolve quicklyResponsibilities:Design, build, and maintain full stack web applicationsDevelop scalable backend APIs and services using Python and FastAPIBuild modern frontend experiences using React and TypeScriptCollaborate directly with the founder to shape product direction and technical prioritiesMentor junior engineers and help establish engineering best practicesBuild integrations with public and third-party data sourcesDesign and develop analytics dashboards, reporting experiences, and data-driven product featuresParticipate in architectural and technical decisions as the platform evolvesDesign and work with PostgreSQL databases and application data modelsBuild and maintain cloud-native application infrastructure on AWSLeverage AI-assisted development workflows throughout the software development lifecycleHelp establish development processes, standards, and technical practices as the engineering organization growsTake ownership of features from initial requirements through development, testing, deployment, and ongoing improvementSome Must-Haves:4+ years of professional software engineering experience for Mid-Level candidates or 7+ years for Senior candidatesStrong experience building and shipping production web applicationsProfessional experience with Python and modern backend developmentStrong experience with React and TypeScriptExperience designing, building, and integrating RESTful APIsExperience with PostgreSQL and relational data modelingExperience building cloud-native applications on AWSAbility to work effectively across frontend and backend systemsComfortable working in startup or other fast-moving, high-ownership environmentsAbility to operate independently and solve problems with minimal oversightStrong communication and collaboration skillsExperience using AI coding tools such as Claude Code, Cursor, or similar as part of daily developmentTechnical Requirements:PythonFastAPIReactTypeScriptPostgreSQL / Amazon Aurora PostgreSQLSQLAlchemyAWS LambdaAmazon CognitoREST APIsGit / GitHubCloud-native application developmentRelational data modelingModern AI-assisted development workflowsNice-to-Haves:Experience with AI agentic development workflowsExperience building AI-powered product featuresExperience building analytics or dashboard-heavy applicationsExperience integrating public APIs and large datasetsStartup or early-stage product development experienceExperience taking software products or features from 0 to 1Experience mentoring junior engineersExposure to data science, analytics, or data-intensive applicationsInfrastructure and DevOps experience on AWSExperience making architectural decisions for growing applicationsInterest in economic development, fintech, investment intelligence, or data-driven platformsWhere We're Looking For It:Albany, New York