Build and operate customer-facing integrations (APIs, identity federation, webhooks) connecting Kodex with third-party systems. Backend-leaning generalist with 4+ years experience in TypeScript/Node.js/React and production API experience.
150k – 180k
Remote4+ YOEBackend Engineering
About the role
What You’ll Do
Work closely with Product, Customer Success, and engineers to design, develop, and ship integration capabilities that unlock new workflows
Build external-facing APIs and “Bridge” infrastructure for ingest/egress of requests between Kodex and third-party systems (service-to-service auth, customer keys, request intake endpoints)
Ship identity and verification integrations such as Sign in with Kodex (OIDC) and related security reviews, test environments, and customer enablement
Deliver cross-border / government portal integrations (e.g., e-Evidence-style workflows) requiring careful spec compliance, auditing, and operational rigor
Productize existing bespoke integrations into reusable, scalable primitives (migrations, standard connectors, consistent schemas)
Build self-serve integrations (e.g., marketplace-grade Slack app experiences) that eliminate manual setup and reduce on-call/customer support load
Improve reliability and observability across integration surfaces (rate limits, retries, idempotency, structured logging, dashboards, and runbooks)
Leverage AI Agents to accelerate implementation, refactors and debugging while staying accountable for design and correctness
Participate in on-call rotations to maintain system reliability and respond to incidents
Raise the bar on engineering quality through thoughtful architecture, testing, and pragmatic refactors
Requirements
4+ years of professional software engineering experience (or equivalent)
Strong in TypeScript and comfortable across Node.js backend + React frontend
Experience with (or excited to learn) Golang and security-focused infrastructure (AWS Nitro Enclaves, key management, sensitive data handling)
Shipped and operated production APIs / integrations (REST/GraphQL, webhooks, queues, async workflows)
Build and scale the control plane for Cloudflare Workers, the serverless edge platform. Design distributed systems, high-traffic APIs, storage schemas, and own production reliability for services powering Pages and R2. Requires strong Go experience plus knowledge of observability, databases, and Kubernetes.
150k – 206k
On-site5+ YOEBackend Engineering
Backend Software Engineer
DoxelSan Francisco, CA
Backend engineer building and scaling data pipelines, APIs, and storage systems (DuckDB, PostgreSQL, Airflow) that power construction-insight applications and integrate with CV/ML models.
150k – 200k
Hybrid3+ YOEBackend Engineering
Deliverability Engineer, Core Sending
ResendUnited States
As a Deliverability Engineer, you will be responsible for building and maintaining core components for sending transactional and marketing emails. This role requires expertise in email deliverability, reputation, and high-volume email systems.
150k – 180k
RemoteBackend Engineering
Backend Engineer , Core Sending
ResendUnited States
As a Backend Engineer on the Core Sending Squad, you will build and operate Resend’s email transport infrastructure, focusing on SMTP delivery, MTA systems, and routing. You will design systems for throttling, IP pools, and reputation-aware routing, and improve bounce classification.
150k – 170k
RemoteBackend Engineering
Product Engineer
HyperspellSan Francisco, CA
Builds product for AI agent memory and context layer, focusing on backend systems, developer SDKs/APIs, integrations with tools like Slack/Notion, and agent primitives. Requires 3+ years backend/fullstack experience, Python/TypeScript fluency, and strong product judgment for onsite SF role.