Senior Integration Software Engineer Jobs in Tennessee

Kodex revolutionizes how organizations handle sensitive subpoenas and data requests from law enforcement and government agencies. Founded by a former FBI agent and backed by leading investors including Andreessen Horowitz, Y Combinator, Peak XV and Thiel Capital, Kodex has become the industry standard for secure data exchange. Our platform supports over 15,000 government agencies in 190 countries and is trusted by industry leaders like Coinbase, Stripe, and AT&T.

By transforming a traditionally complex and manual process into a streamlined digital workflow, Kodex helps organizations strengthen compliance, enhance security, and reduce operational costs by millions each year. We bridge the gap between companies and authorized requestors, ensuring that sensitive data is handled with uncompromising security, transparency, and efficiency.

We’re hiring a Software Engineer to join our Integrations team and help turn Kodex into the default “Bridge” between law enforcement, companies, and the external systems they already rely on.

You’ll build and operate customer-facing integrations (APIs, identity federation, webhooks, imports/exports, and marketplace apps) that reduce manual work for customers, unblock new product workflows, and raise the reliability and security bar across the platform.

This is an ideal role for backend leaning generalists who like working at the seams between systems: translating messy real-world requirements into clean designs, shipping end-to-end, and owning systems in production.

We leverage AI-assisted, agentic development. We use these tools to move faster, but never ship code we can’t explain, test and maintain. Security, correctness and discipline come first.

You’ll work closely with Product, Customer Success, and fellow engineers to design, develop, and ship integration capabilities that unlock new workflows. Upcoming work areas include:

• Building 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)
• Shipping identity and verification integrations such as Sign in with Kodex (OIDC) and related security reviews, test environments, and customer enablement
• Delivering cross-border / government portal integrations (e.g., e-Evidence-style workflows) that require careful spec compliance, auditing, and operational rigor
• Productizing existing bespoke integrations into reusable, scalable primitives (migrations, standard connectors, consistent schemas)
• Building self-serve integrations (e.g., marketplace-grade Slack app experiences) that eliminate manual setup and reduce on‑call/customer support load
• Improving 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 the design and correctness of the system
• Participating in on‑call rotations to maintain system reliability and respond to incidents
• Raising the bar on engineering quality through thoughtful architecture, testing, and pragmatic refactors

• Have 4+ years of professional software engineering experience (or equivalent)
• Are strong in TypeScript and comfortable across Node.js backend + React frontend
• Have experience with (or are excited to learn) Golang and security-focused infrastructure (e.g., AWS Nitro Enclaves, key management, sensitive data handling)
• Have shipped and operated production APIs / integrations (REST/GraphQL, webhooks, queues, async workflows)
• Understand (or are excited to learn deeply) authn/authz patterns such as OAuth2 / OIDC, service-to-service authentication, token hygiene, and secure‑by‑default interface design
• Think carefully about reliability (timeouts, retries, idempotency, backfills, migrations, monitoring) and can debug production issues efficiently
• You've used AI coding tools effectively in production and know how to guide them with strong engineering judgment (design, architecture, testing)
• Can take ambiguous requirements (often from external partners) and turn them into clear designs and deliverables
• Value pragmatism, autonomy, and a customer‑first mindset

Experience with security reviews, compliance-heavy domains, marketplace app ecosystems (e.g., Slack), or large integration migrations.

We care deeply about the software we build — because our work protects real people. Kodex plays a critical role in helping major companies respond securely and transparently to sensitive data requests from law enforcement, enabling both privacy protection and public safety. Our engineering culture is built on trust, autonomy, and technical rigor. Our engineers:

• Own projects end to end
• Collaborate without ego
• Invest in quality and velocity
• Act as force‑multipliers for one another

This is a place where the best idea wins, and your work has real impact, every day.

• Frontend: TypeScript, React, GraphQL, Material UI
• Backend: Golang, Node.js, TypeScript, Prisma, and PostgreSQL. We’re hosted on AWS.
• Tooling: Agentic coding and reviews
• We’re also working on cutting‑edge projects using AWS Nitro Enclaves

• Remote‑first within the U.S.
• Offsites in exciting locations. Past trips include Seattle, Miami, Nashville, and San Francisco
• Competitive salary and meaningful equity
• Unlimited PTO + 14 company holidays
• 12 weeks of fully paid parental leave, with a flexible return‑to‑work policy
• Comprehensive medical, dental, and vision plans
• 401(k) retirement plan
• Dynamic Environment: Work on impactful, high‑priority matters with opportunities for professional growth.

Kodex is committed to hiring talented and qualified individuals with diverse backgrounds for all of its tech, non‑tech, and leadership roles. Kodex believes that the gathering and celebration of unique backgrounds, qualities, and cultures enriches the workplace.