Senior Full Stack Intergrations Developer

Job Description

Senior Full Stack Developer (Integrations Focus)DescriptionAbout Octopus HR<p>Octopus 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.</p>The Opportunity<p>Pluvo 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.</p>ResponsibilitiesIntegration Architecture & Data Stack<ul><li>Build and maintain integrations with accounting systems such as QuickBooks, Xero, and NetSuite</li><li>Design robust data pipelines connecting CRM, HR, and financial platforms</li><li>Work with data warehousing solutions (Snowflake or similar) to manage and analyze multi-source data</li><li>Ensure data integrity, security, and reliability across all integration points</li><li>Optimize SQL queries and database performance for large-scale data operations</li><li>Design and build scalable APIs capable of handling high volumes of financial and enterprise data</li></ul>Performance Optimization & Scalability<ul><li>Diagnose and resolve memory issues and performance bottlenecks causing system instability</li><li>Architect backend services and APIs that support growing data volumes and user traffic</li><li>Optimize database queries and implement caching strategies to improve response times</li><li>Design systems with horizontal scalability and long-term growth in mind</li></ul>Database Engineering & Security<ul><li>Lead database design and optimization, ensuring data is stored, accessed, and scaled securely and efficiently</li><li>Implement secure, scalable storage solutions using PostgreSQL or similar technologies</li><li>Champion data integrity, encryption best practices, and compliance standards</li></ul>Full Stack Development<ul><li>Build and maintain high-performance frontends using and TypeScript</li><li>Own backend development in , creating clean, well-documented APIs</li><li>Implement and maintain CI/CD pipelines to streamline deployments and reduce manual overhead</li><li>Ship new features from concept to production with end-to-end ownership</li></ul>Team Leadership & Mentorship<ul><li>Coach and mentor junior developers by sharing knowledge, setting standards, and providing thoughtful code reviews</li><li>Foster a high-quality engineering culture grounded in collaboration and continuous improvement</li><li>Help establish and reinforce best practices around performance, security, and code quality</li></ul>Cross-Functional Collaboration<ul><li>Work closely with Leadership, Product, Design, and QA to deliver high-quality features</li><li>Participate in sprint planning and lead technical discussions that shape product outcomes</li><li>Communicate complex technical concepts clearly to non-technical stakeholders</li></ul>Requirements<ul><li>5+ years of full-stack development experience building and operating production systems at scale</li><li>Strong experience building third-party integrations, particularly with accounting or enterprise SaaS platforms</li><li>Experience across the full data stack, including SQL, data warehousing (Snowflake or similar), and CRM/HR/ERP integrations</li><li>Demonstrated ability to manage complex, multi-source data while maintaining data quality and integrity</li><li>Strong cloud infrastructure experience, especially with AWS (EC2, RDS, Lambda, S3, CloudWatch)</li><li>Proven track record of performance optimization and solving scalability challenges</li><li>Deep expertise in TypeScript/JavaScript and modern full-stack development</li><li>Expert-level experience with or React frameworks</li><li>Extensive experience with database design, optimization, and scaling (PostgreSQL strongly preferred)</li><li>Strong understanding of system architecture and designing for reliability and scalability</li><li>Passion for clean code, security best practices, and modern software architecture</li><li>Proven ability to solve problems creatively and effectively</li><li>Excellent verbal and written communication skills</li><li>Experience with Git-based workflows (GitHub preferred)</li><li>Demonstrated experience mentoring and coaching junior developers</li><li>Experience working in agile environments using tools such as Jira</li></ul>Nice to Haves<ul><li>Experience working with LLMs, AI/ML models, or predictive analytics systems</li><li>Experience building BI tools, data visualization platforms, or analytics products</li><li>Familiarity with AI-powered presentation or reporting tools</li><li>Experience with Java</li><li>Knowledge of the financial industry or experience working in a fintech SaaS company</li><li>Familiarity with FP&A platforms such as Causal, Pigment, or similar</li><li>Experience with DevOps practices and infrastructure as code</li><li>Previous experience at a high-growth, VC-backed startup</li><li>Experience with Python for data science or ML workflows</li></ul>Benefits<ul><li>Impact: Your work will directly support the scalability, reliability, and data integrity of a mission-critical product</li><li>Technical Challenges: Tackle real-world problems across integrations, data pipelines, and system performance</li><li>Team: Join a collaborative, experienced engineering team that values ownership and quality</li><li>Growth: Influence technical direction and grow into broader technical leadership responsibilities</li></ul>