Senior Full Stack Software Engineer

Senior Full Stack Software EngineerAll potential applicants are encouraged to scroll through and read the complete job description before applying.Contract-to-Hire Opportunity with a Major Investment FirmLocation: Newark, NJ (Hybrid - 3 Days/Week Onsite)Duration: Contract-to-HirePay Rate: Up to $65/hour W2 (Based on Experience)Employment Type: W2 Only (No C2C)Candidates: Local Candidates PreferredWe are seeking an experienced Senior Full Stack Software Engineer to join a growing technology team within a leading investment management organization. This role offers the opportunity to build enterprise-scale, cloud-native applications while working with modern technologies including Java, React, Spring Boot, AWS, and AI-assisted development tools.The ideal candidate will have a strong background in full stack application development, cloud technologies, and financial services, along with experience building scalable, secure, and high-performing enterprise applications.What You'll DoDesign, develop, and maintain enterprise-grade applications using modern software engineering best practicesBuild high-quality, well-documented, and maintainable code following established coding standardsCollaborate with Product Owners, Technical Leads, and cross-functional teams to design and deliver scalable business solutionsDevelop RESTful APIs, microservices, and cloud-native applicationsWrite unit tests, integration tests, and automated test suitesTroubleshoot production issues and implement long-term solutionsParticipate in architecture discussions and contribute to application design decisionsMentor team members and promote engineering best practicesWork with modern DevOps tools and CI/CD pipelines to support continuous deliveryBuild secure, reliable, and scalable applications utilizing AWS cloud servicesLeverage AI-assisted development tools to improve engineering productivity and software qualityRequired QualificationsBachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience)6+ years of hands-on experience building enterprise software applicationsStrong experience working within Agile development environmentsExperience with Test-Driven Development (TDD)Excellent analytical, communication, collaboration, and problem-solving skillsAbility to quickly learn new technologies and solve complex technical challengesFinancial Services or Insurance industry experience is requiredTechnical SkillsStrong programming experience with Java, Python, JavaScript, TypeScript, and C#Extensive experience building Java applications using Spring Framework, Spring Boot, Maven, and MicroservicesExperience with distributed systems, object-oriented design, multithreading, concurrency, and design patternsFront-end development experience with ReactExperience with Node.js, Flask, and DjangoStrong knowledge of relational and NoSQL databases including Oracle, PostgreSQL, DB2, Redshift, and PL/SQLExperience with event-driven and streaming technologies including Amazon SQS, Kinesis, AWS MSK, and EventBridgeExperience designing, developing, and consuming REST APIs and Service-Oriented Architecture (SOA)Experience with API Management platforms such as Kong and ApigeeExperience with automated testing frameworks and software xhyhwjd quality practicesUnderstanding of accessibility standards and secure software developmentStrong knowledge of application security including authentication, authorization, JWT, OAuth 2.0, OpenID Connect, SAML 2.0, SSL, encryption, and DevSecOpsExperience using GitHub, Bitbucket, Jenkins, and modern DevOps practicesKnowledge of application monitoring, logging, and Software Development Lifecycle (SDLC) best practicesHands-on experience with AWS cloud services across compute, storage, databases, IAM, analytics, and application servicesPreferred QualificationsStrong experience with Domain-Driven Design (DDD)Experience building AWS cloud-native applicationsStrong understanding of modern software architecture patternsExcellent system design and critical thinking skillsExperience with AI-assisted development tools and agentic frameworks such as Claude Code, GitHub Copilot, or similar platformsIf you're a Senior Full Stack Engineer looking to work on enterprise-scale applications while leveraging modern cloud technologies and AI-assisted software development, we'd love to hear from you.