Senior Full Stack Intergrations Developer

Senior Full Stack Developer (Integrations Focus)DescriptionAbout Octopus HROctopus HR is a fractional HR consultancy that partners with high-growth startups to build exceptional teams. We specialize in talent acquisition, people operations, and HR strategy for innovative companies scaling rapidly. We’re proud to partner with Pluvo on this search.The OpportunityPluvo is seeking an experienced Senior Full Stack Developer with a strong integrations and data-platform background to join the team at a critical stage of scale. This role is centered on building and maintaining complex enterprise integrations, scalable data pipelines, and high-performance systems that power a finance-focused SaaS product used every day by customers.ResponsibilitiesIntegration Architecture & Data StackBuild and maintain integrations with accounting systems such as QuickBooks, Xero, and NetSuiteDesign robust data pipelines connecting CRM, HR, and financial platformsWork with data warehousing solutions (Snowflake or similar) to manage and analyze multi-source dataEnsure data integrity, security, and reliability across all integration pointsOptimize SQL queries and database performance for large-scale data operationsDesign and build scalable APIs capable of handling high volumes of financial and enterprise dataPerformance Optimization & ScalabilityDiagnose and resolve memory issues and performance bottlenecks causing system instabilityArchitect backend services and APIs that support growing data volumes and user trafficOptimize database queries and implement caching strategies to improve response timesDesign systems with horizontal scalability and long-term growth in mindDatabase Engineering & SecurityLead database design and optimization, ensuring data is stored, accessed, and scaled securely and efficientlyImplement secure, scalable storage solutions using PostgreSQL or similar technologiesChampion data integrity, encryption best practices, and compliance standardsFull Stack DevelopmentBuild and maintain high-performance frontends using Next.js and TypeScriptOwn backend development in Node.js, creating clean, well-documented APIsImplement and maintain CI/CD pipelines to streamline deployments and reduce manual overheadShip new features from concept to production with end-to-end ownershipTeam Leadership & MentorshipCoach and mentor junior developers by sharing knowledge, setting standards, and providing thoughtful code reviewsFoster a high-quality engineering culture grounded in collaboration and continuous improvementHelp establish and reinforce best practices around performance, security, and code qualityCross-Functional CollaborationWork closely with Leadership, Product, Design, and QA to deliver high-quality featuresParticipate in sprint planning and lead technical discussions that shape product outcomesCommunicate complex technical concepts clearly to non-technical stakeholdersRequirements5+ years of full-stack development experience building and operating production systems at scaleStrong experience building third-party integrations, particularly with accounting or enterprise SaaS platformsExperience across the full data stack, including SQL, data warehousing (Snowflake or similar), and CRM/HR/ERP integrationsDemonstrated ability to manage complex, multi-source data while maintaining data quality and integrityStrong cloud infrastructure experience, especially with AWS (EC2, RDS, Lambda, S3, CloudWatch)Proven track record of performance optimization and solving scalability challengesDeep expertise in TypeScript/JavaScript and modern full-stack developmentExpert-level experience with Next.js or React frameworksExtensive experience with database design, optimization, and scaling (PostgreSQL strongly preferred)Strong understanding of system architecture and designing for reliability and scalabilityPassion for clean code, security best practices, and modern software architectureProven ability to solve problems creatively and effectivelyExcellent verbal and written communication skillsExperience with Git-based workflows (GitHub preferred)Demonstrated experience mentoring and coaching junior developersExperience working in agile environments using tools such as JiraNice to HavesExperience working with LLMs, AI/ML models, or predictive analytics systemsExperience building BI tools, data visualization platforms, or analytics productsFamiliarity with AI-powered presentation or reporting toolsExperience with JavaKnowledge of the financial industry or experience working in a fintech SaaS companyFamiliarity with FP&A platforms such as Causal, Pigment, or similarExperience with DevOps practices and infrastructure as codePrevious experience at a high-growth, VC-backed startupExperience with Python for data science or ML workflowsBenefitsImpact: Your work will directly support the scalability, reliability, and data integrity of a mission-critical productTechnical Challenges: Tackle real-world problems across integrations, data pipelines, and system performanceTeam: Join a collaborative, experienced engineering team that values ownership and qualityGrowth: Influence technical direction and grow into broader technical leadership responsibilities #J-18808-Ljbffr