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Senior Associate, Full Stack Engineer | Los Angeles, California
Senior Associate, Full Stack Engineer
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Los Angeles , California

|

Hybrid

|

Contract

Los Angeles, California

|

Hybrid

|

Contract

Job ID 76161|Posted Sep 9, 2026
JOB DESCRIPTION

We’re seeking a Senior Associate, Full Stack Engineer to help build and support modern solutions in a fast-paced, collaborative environment. This role offers the opportunity to work on impactful full stack development efforts with a strong focus on financial services, investment management, trading, or capital markets experience.

Responsibilities

  • Design, develop, and maintain full stack applications using a mix of backend and frontend technologies.
  • Build scalable services and APIs that support business and technical requirements.
  • Collaborate with cross-functional teams to gather requirements and translate them into technical solutions.
  • Develop and support cloud-based applications using AWS services and modern DevOps practices.
  • Contribute to code quality through peer reviews, technical documentation, and best practices.
  • Work in an Agile environment and participate in team planning, delivery, and continuous improvement.
  • Support troubleshooting and monitoring efforts using observability and logging tools.

Skills

  • Strong experience with Java and Python.
  • Hands-on knowledge of FastAPI, Pandas, and NumPy.
  • Experience with Spring, Spring Boot, Spring IOC, and Hibernate.
  • Proficiency building RESTful web services.
  • Frontend experience with React and Node.js.
  • Experience with AWS services such as S3, Lambda, ECS, EKS, EC2, SNS, SQS, and RDS.
  • Working knowledge of Okta, Git, Terraform, CI/CD, Datadog, and Splunk.
  • Experience with PostgreSQL and SQL Server.
  • Ability to write technical specifications and contribute to requirement gathering.

Preferred Skills

  • Prior experience supporting financial services, investment management, trading, or capital markets initiatives.
  • Strong communication skills and the ability to work effectively across teams.
  • Comfort working in a collaborative, detail-oriented, and delivery-focused environment.
  • Experience with onsite or hybrid team settings.

Horizontal is committed to building an inclusive workplace where different perspectives, backgrounds, and experiences are valued. We believe diversity, equity, and inclusion strengthen our teams and help create better outcomes for everyone.

By applying for this position, you acknowledge and agree that Horizontal Talent may contact you regarding your application using automated technology, including phone calls, SMS/text messages, or email, which may be delivered by our virtual AI recruiter, Alex.

Horizontal is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, veteran status, or any other protected characteristic under applicable law.

Horizontal is committed to taking affirmative action to employ and advance in employment qualified individuals with disabilities and protected veterans. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process or participate in the interview process, click here to request accommodation assistance.

All applicants applying must be legally authorized to work in the country of employment.

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