API Architect

Altimetrik; North Carolina; On-site; USD 140,000 - 200,000; Full time

Job summary

Altimetrik is seeking a senior API/Backend engineer to own API architecture and deliver enterprise-scale integrations in Azure. You will design REST/OpenAPI interfaces, drive contract-first development, and ensure secure, scalable data transfer patterns.

The role requires hands-on Java with Spring Boot and WebFlux, plus deep experience with AWS/Azure services, CI/CD and IaC. You will communicate complex designs to engineers and non-technical stakeholders alike.

Qualifications

• 10+ years in API, integration or backend engineering.
• 3+ years owning API architecture and design at enterprise scale.
• Strong hands-on Java with Spring Boot and Spring WebFlux.
• Deep API design skills: REST and OpenAPI, versioning and idempotency.
• Secure file-transfer patterns at scale including SFTP and signed URLs.
• Architect target-state designs and defend trade-offs.
• Hands-on API delivery in Azure: App Service, AKS, Container Apps.
• Azure API Management, Entra ID, and Key Vault security.
• Messaging with Azure Event Hubs, Service Bus or Kafka.
• Python for automation and testing; strong SQL/data modeling.
• CI/CD and IaC with Azure DevOps, Terraform.

Responsibilities

• Own API architecture and design at enterprise scale.
• Deliver API solutions in Azure with containerized deployments.
• Define and defend target-state designs to stakeholders.
• Implement secure file transfer patterns and large payload handling.
• Collaborate with client teams to socialize interfaces and trade-offs.

Skills

API design

Java

Spring Boot

Spring WebFlux

Project Reactor

REST

OpenAPI

Azure cloud

Terraform

Kubernetes

SFTP

Python scripting

SQL modeling

CI/CD

Event-driven

RBAC / Key Vault

Tools

Azure App Service

AKS / Container Apps

Azure API Management

Key Vault

Event Hubs

Service Bus

Kafka

Terraform

Azure DevOps

Git

Job description

10+ years in API, integration or backend engineering, including 3+ years owning API architecture and design at an enterprise scale.

Strong hands-on Java with Spring Boot and Spring WebFlux / Project Reactor: reactive streams, backpressure, non-blocking I/O, and streaming large payloads and files without exhausting memory.

Deep API design skills: REST and OpenAPI, contract-first development, versioning, pagination, error and status-code semantics, and idempotency.

Secure file-transfer patterns at scale, including SFTP, signed URLs, and multipart and resumable uploads and downloads.

Proven ability to design and architect, not just build: you can produce target-state designs, sequence diagrams and interface specifications, and defend the trade-offs to a client architecture forum.

Hands-on API delivery in an Azure environment:

Compute and hosting: App Service, AKS or Container Apps, with containerised deployment.

Azure API Management for gateway policies, throttling, subscriptions and developer portal.

Entra ID, managed identities, RBAC, Key Vault and private endpoints.

Messaging and event-driven integration with Azure Event Hubs, Service Bus or Kafka.

Working knowledge of Python for automation, testing and operational tooling around the API estate.

Strong SQL and data modelling, plus schema and contract design for integration.

CI/CD and IaC in anger: Git branching strategy, automated pipelines in Azure DevOps, Terraform, and automated contract and integration testing.

Clear technical writing, and the ability to present and defend a design to both engineers and non-technical stakeholders, including client-side teams..