Senior Software Engineer

* Description
* This initiative is for detecting any breakage in traveler experience and attempting to proactively resolve it. They've already built an initial version of the proactive engine and looking to build it out further and add automations for the resolutions.
Looking for 2 full stack engineers to design, build, and ship end to end features across backend services (Java/Kotlin), web frontends (React), and mobile apps. They'll lead the technical design, raise the bar on code quality, own dependency management strategies, and help the team deliver iteratively in an Agile environment.
Responsibilities

* Design, build, and maintain scalable backend services in Java/Kotlin (e.g., Spring Boot/Ktor) and REST/Graph

QL APIs.

* Develop high-quality web applications in React (Type Script), integrating with backend services and design systems.

* Contribute to mobile development, primarily Android (Kotlin, Jetpack/Compose); optionally cross platform (React Native) where applicable.

* Own end to end feature delivery: schema design, APIs, UI/mobile, testing, deployment, and observability.

* Lead dependency management practices across the stack:

* Define versioning and upgrade strategies (BOMs, semantic versioning, scheduled updates).

* Manage build and package tools (Gradle/Maven, npm/yarn/pnpm).

* Maintain artifact repositories and SBOMs; remediate vulnerabilities and license issues (e.g., Dependabot/Snyk/OWASP Dependency-Check).

* Improve CI/CD pipelines, automated testing, and release engineering (Git Hub Actions/Git Lab/Jenkins; Nexus/Artifactory).

* Drive architectural decisions, system design reviews, and performance/security best practices (OWASP Top 10).

* Add observability: structured logging, metrics, tracing; define SLOs and dashboards.

* Mentor engineers, perform code reviews, and contribute to engineering standards.

* Collaborate with product, design, and QA; participate in Agile ceremonies; break down and estimate work.
Required qualifications

* 8+ years of professional software engineering experience, including 3+ years delivering full stack features to production.

* Strong proficiency in Java (11+/17) and Kotlin; expertise with Spring Boot (or Ktor), JPA/Hibernate, SQL design, and caching (e.g., Redis).

* Frontend proficiency with React and Type Script; hands on with state management (Redux/Zustand), routing, and modern build tooling (Vite/Webpack).

* Mobile experience building and shipping mobile apps in Kotlin (Coroutines, Jetpack/Compose); familiarity with app store release processes and CI for mobile.

* Testing expertise: JUnit 5/Mockito/Testcontainers for backend;
Jest/React Testing Library and Cypress/Playwright for web;
Android unit/UI tests.

* Deep experience in dependency management and supply chain security:

* Gradle/Maven configuration, dependency graphs, and BOM usage.

* npm/yarn/pnpm workflows, lockfiles, and monorepo strategies.

* Vulnerability scanning, license compliance, and SBOM generation.

* CI/CD and Dev Ops fundamentals:
Git, trunk based or Git Flow, Docker, artifact versioning, environment promotion.

* Cloud experience with at least one major provider (AWS/GCP/Azure) and common managed services; basic Kubernetes familiarity is a plus.

* Strong communication, cross functional collaboration, and mentoring skills.

* Skills
* java, spring boot, api

* Top Skills Details
* java,spring boot,api

* Additional

Skills & Qualifications
* Nice to have

* Microservices patterns; event streaming (Kafka), gRPC.

* Server-side rendering and app frameworks (Next.js), Node.js/Express for BFFs.

* Kotlin Multiplatform Mobile or React Native experience.

* IaC (Terraform), secrets management, and policy as code.

* Domain driven design, data modeling, and migration strategies.

* Performance tuning and profiling across backend, web, and mobile.

* Experimentation/feature flags and A/B testing.

* Experience Level
* Expert Level
We reserve the right to pay above or below the posted wage based on factors unrelated to sex, race, or any other protected
classification. Eligibility requirements apply to some benefits
and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. This temporary role may be eligible for the following:

* Medical, dental & vision

* 401(k)/Roth

* Insurance (Basic/Supplemental Life & AD&D)

* Short and long-term disability

* Health and Dependent Care Spending Accounts (HAS & DCFSA)

* Transportation benefits

* Employee Assistance Program

* Time off/Leave (PTO, Vacation, or Sick Leave)

* Job Type & Location
* This is a Contract position based out of Seattle, WA.

* Pay and Benefits
* The pay range for this position is $65.00 - $72.00/hr.
Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:

* Medical, dental &…