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/GraphQL APIs.
Develop high-quality web applications in React (TypeScript), 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 (GitHub Actions/GitLab/Jenkins; NexArtifactory).
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 TypeScript; 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 DevOps fundamentals: Git, trunk based or GitFlow, Docker, artifact versioning, environment promotion.
Cloud experience with at least one major provider (AWS/Google Cloud Platform/Azure) and common managed services; basic Kubernetes familiarity is a plus.
Strong communication, cross functional collaboration, and mentoring skills.
Skills
java, springboot, api
Top Skills Details
java,springboot,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 & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Seattle,WA.
Application Deadline
This position is anticipated to close on Feb 27, 2026.
>About TEKsystems:
We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.