Senior Fullstack Developer

About the position Octacom, a division of DCM, is an enterprise software and services company focused on document and data management solutions. Octacom specializes in document management and workflow automation software, as well as document imaging and data capture services. Octacom’s core solutions focus on large scale digitization and financial process automation, enabling large enterprise clients across a wide range of industries to streamline and optimize their Accounts Payable and Accounts Receivable processes.\n\nAs a Senior Fullstack Developer, you will take ownership of complex, end-to-end development features across our platform. You'll work across the stack from data models and APIs to the React interfaces that consume them. You will play a key role in architectural decisions as we continue to scale up a client-diverse, enterprise-grade product that serves regulated industries.\n\nThis is an hybrid role working 2-3 days in our Richmond Hill office. Responsibilities Design, build, and maintain fullstack features spanning backend services (.NET Framework, ASP.NET Core, ASP.NET MVC) and frontend applications (React.js)Architect and implement GraphQL APIs using Hot Chocolate, alongside traditional REST/Web APIs, ensuring performant and well-documented interfaces for internal and external consumersDesign and optimize MSSQL database schemas, queries, and stored procedures for performance, reliability, and data integrityCollaborate with product managers, designers, and other engineers to translate requirements into technical designs and shippable featuresOwn features from planning through deployment, including code reviews, testing, and production supportIdentify and address technical debt, performance bottlenecks, and scalability constraints across the stackMentor junior and mid-level developers, providing technical guidance and code review feedbackParticipate in architectural discussions and contribute to technical roadmap planningWrite clean, maintainable, well-tested code and contribute to evolving engineering standards and best practicesTroubleshoot and resolve production issues across the fullstack from database to UIRequirements Bachelor’s degree in Computer Science, Computer Engineering, or related field with 5+ years of fullstack development experienceProven experience with .NET Framework and modern .NET (ASP.NET Core, ASP.NET MVC)Strong hands-on experience with MSSQL (T-SQL, query optimization, indexing, stored procedures), including schema design, query optimization, and performance tuningSolid experience developoing APIs (REST/Web APIs); experience with GraphQL, ideally using Hot Chocolate is an assetProficiency with React.js, JavaScript/TypeScript and modern frontend development practicesExperience working in multi-tenant or enterprise software environments is an assetStrong understanding of software design principles, design patterns, and clean architectureExcellent communication skills and ability to work collaboratively across disciplines.NET Framework, ASP.NET Core, ASP.NET MVCMSSQL (T-SQL, query optimization, indexing, stored procedures)GraphQL and Hot ChocolateReact.js, JavaScript/TypeScriptWeb API design and development (REST and GraphQL)Git-based version control and collaborative development workflowsDebugging and performance profiling across frontend and backendNice-to-haves SSO and authentication/authorization technologies (SAML2, OAuth2, OpenID Connect)Experience implementing ML/AI capabilities, particularly RAG (Retrieval-Augmented Generation), LLM integration, or agent-based systemsExperience with cloud platforms (AWS, Azure, or GCP)Exposure to CI/CD pipelines and DevOps practicesExperience with document processing, data capture, or similarly data-intensive domainsBenefits Comprehensive healthcare, dental, and vision coverage for you and family starting on first day of work3 weeks of vacation annuallyCollaborative and supportive work environment where your ideas are valued and your impact is visible