Staff Full Stack Engineer, Contacts

Jobgether

7d•$218,114 - $331,020•Remote

About The Position

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Staff Full Stack Engineer, Contacts in United States. This is a high-impact engineering leadership role focused on building and scaling a next-generation Contacts platform within a fast-growing B2B SaaS environment. You will help evolve a 0â1 product into a mature, scalable, and reliable multi-tenant system that powers contact data, enrichment pipelines, and AI-driven engagement workflows. Working across backend and frontend systems, youâll influence architecture, APIs, and data models that serve as a system of record for millions of users. The role combines hands-on technical ownership with cross-functional leadership, partnering closely with Product, Design, and Engineering teams. If you thrive in ambiguous problem spaces and enjoy shaping long-term technical strategy while mentoring others, this opportunity offers meaningful scope and visibility.

Requirements

8â10+ years of experience building and operating backend or full-stack systems within B2B SaaS environments, including experience at Staff level or equivalent technical leadership.
Proven success leading 0â1 products and scaling them into mature, multi-tenant systems, including revisiting foundational architecture decisions.
Strong expertise in distributed systems, API design, and data modeling for high-traffic, high-availability platforms.
Proficiency in at least one modern stack such as Go, TypeScript/Node, or React, with comfort working across the full stack.
Experience with modern cloud infrastructure (e.g., GCP or similar), Kubernetes, and relational databases such as PostgreSQL; familiarity with event-driven architectures, CDC, or search platforms is a plus.
Strong testing discipline (unit, integration, end-to-end), observability practices (metrics, logging, tracing), and performance optimization experience.
Experience working with CRM, sales/marketing platforms, or other data-centric systems where data quality and reliability are critical.
Demonstrated ability to influence technical strategy across teams and mentor engineers to raise the overall technical bar.
Excellent communication skills and ability to provide strong technical opinions while remaining collaborative and low-ego.
Availability for on-call rotations and authorization to work in the United States (no sponsorship available).

Responsibilities

Own critical components of the Contacts platform end-to-end, from architecture and design through deployment, reliability, and ongoing optimization.
Design and evolve services, APIs, and data models that support scalable contact ingestion, enrichment, and engagement workflows.
Lead complex, cross-functional initiatives that move products from early-stage architecture to robust, high-availability systems.
Drive improvements in observability, testing, service-level objectives (SLOs), and operational excellence.
Break down ambiguous technical challenges into structured roadmaps with incremental, high-impact milestones.
Mentor senior and mid-level engineers, review design documents and pull requests, and elevate engineering standards across teams.
Collaborate with Product and Design to translate customer needs into pragmatic, secure, and data-trust-driven solutions.
Participate in on-call rotations, incident response, and long-term reliability improvements for business-critical services.