[Hiring] Senior Fullstack Engineer - Capacity & Matching Consultant @Inflect

Role Description

Inflect is engaging an independent Sr Fullstack Engineer - Capacity & Matching Consultant, engaged through Rippling (acting as Contractor of Record), who will serve as the primary advisor for the Gateway and Capacity Matching cluster within the Intelligence Engine. This is an autonomous, high-impact consulting engagement focused on building and maintaining the full-stack matching-to-transaction spine, algorithmic confidence scoring, cost optimization logic, and gateway service infrastructure.

Working as an external subject matter expert, you will provide technical execution across the coupled Gateway and Capacity Matching surface while serving as cross-coverage backup owner for the RouteFinder and Site Prover cluster, ensuring core platform intelligence runs with high availability, accuracy, and automated resiliency.

Qualifications

• 7–10 years of professional full-stack engineering expertise.
• Deep production proficiency in Go (backend services) and React/TypeScript (frontend interfaces).
• Applied experience designing, building, and tuning algorithmic matching, ranking, scoring, or recommendation frameworks.
• Experience with API gateway and integration-heavy backend architectures.
• Hands-on experience with relational databases (Postgres), cloud deployments (AWS), event-driven messaging, and integrating data pipelines.
• Fluent professional English communication skills for effective cross-border async collaboration.

Requirements

• Architect, build, and maintain Go-based backend services and React/TypeScript surfaces for Capacity Matching and the Inflect Gateway.
• Evolve matching, confidence-scoring, and cost-optimization logic to satisfy rigorous precision and explainability requirements.
• Serve as secondary owner and backup for the RouteFinder and Site Prover cluster.
• Participate in cross-coverage, incident response support, and PR assessments.
• Partner with Data Foundation and Lead-to-Cash pods to ensure source-data quality alignments and seamless gateway transaction surface integrations.
• Deliver well-tested, observable code and conduct pull-request assessments under the pod lead's technical direction.

Benefits

• Fixed-rate monthly Independent B2B Service Agreement executed via Rippling at $6,500-$8,000/mo based on experience.
• Contractor must maintain an active corporate entity (Pessoa Jurídica - PJ / CNPJ) in Brazil.
• Upload valid electronic service invoices (Nota Fiscal de Serviços Eletrônica - NFS-e) into Rippling for monthly disbursement.
• Complete flexibility over work schedules, location, and execution methods necessary to fulfill project deliverables and agreed milestones.
• Strictly B2B consulting engagement; no employment relationship under the Consolidation of Labor Laws (CLT).