Senior Full Stack Developer (React/React Native + Java)

Sapient Corporation
Los Angeles, United States of America
yesterday

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English
Experience level
Senior
Compensation
$ 240K

Job location

Los Angeles, United States of America

Tech stack

Java
API
Artificial Intelligence
Amazon Web Services (AWS)
Code Review
Data as a Services
Relational Databases
Software Debugging
DevOps
PostgreSQL
OAuth
Scrum
Role-Based Access Control
Software Engineering
React
Large Language Models
Spring-boot
Software Security
Backend
GraphQL
React Native
Front End Software Development
Api Gateway

Job description

The Senior Manager - Handson full stack developer is a seniorlevel technical leader who combines deep fullstack engineering expertise with team leadership and delivery accountability. This role is highly handson, contributing directly to design and development while also guiding teams, setting technical direction, and ensuring highquality delivery of complex, scalable solutions. The Senior Manager is expected tocode regularly, lead by example, and own critical technical decisions across frontend, backend, APIs, and data services in an enterprise, clientfacing environment.

  • HandsOn Engineering
  • Design, develop, and deliver endtoend fullstack features across frontend (React / React Native) and backend (Java, Spring Boot)

  • Build and maintain REST and GraphQL APIs using a specdriven, APIfirst approach

  • Develop and integrate web and mobile UIs with backend services to support complete user journeys

  • Design and optimize data models and persistence layers (PostgreSQL or similar)

  • Implement secure, scalable solutions with proper authentication and authorization (OAuth, RBAC)

  • Ensure high standards for performance, resilience, reliability, and maintainability Technical Leadership

  • Act as a technical lead and handson architect, owning key design and implementation decisions

  • Design reusable components, shared services, and common frameworks aligned with enterprise architecture standards

  • Review code and designs to ensure best practices in quality, security, and scalability

  • Guide adoption of cloudnative and modern engineering practices (AWS preferred)

  • Bring practical experience with AIenabled and agentic development approaches into solution design where applicable Team & Delivery Leadership

  • Lead and mentor fullstack engineers while remaining actively involved in daytoday development

  • Set clear technical standards, development practices, and engineering discipline across the team

  • Participate directly in sprint planning, technical refinement, estimates, and tradeoff discussions

  • Partner with product, design, and architecture to clarify requirements and drive execution

  • Support structured delivery by balancing handson execution with planning, dependency management, and risk awareness Stakeholder Collaboration

  • Work closely with crossfunctional and client stakeholders to translate business requirements into technical solutions

  • Communicate complex technical concepts clearly to technical and nontechnical audiences

  • Support clientfacing engagements through handson problem solving and technical credibility

Requirements

  • 10+ years of overall software engineering experience with significant handson fullstack development
  • Strong, current coding experience in:
  • Frontend: React and/or React Native
  • Backend: Java, Spring Boot
  • APIs: REST and GraphQL
  • Experience designing and working with relational data stores (PostgreSQL preferred)
  • Experience delivering cloudbased solutions (AWS preferred)
  • Solid understanding of application security, including OAuth, RBAC, and secure API design
  • Proven ability to lead engineers while remaining deeply handson
  • Experience working in structured, enterprise delivery environments
  • Strong problemsolving, debugging, and performancetuning skills
  • Excellent communication skills and comfort operating in clientfacing settings

Preferred / Good to Have

  • Experience in wealth management, financial services, or other regulated industries
  • Exposure to AI frameworks, LLMs, or agentic development patterns in production systems
  • Experience designing and deploying services using API gateways
  • Familiarity with CI/CD pipelines and modern DevOps practices

Benefits & conditions

Pay Range: $162,000 - $240,000, Pay Range: $162,000 - $240,000

The range shown represents a grouping of relevant ranges currently in use at Publicis Sapient. Actual range for this position may differ, depending on location and specific skillset required for the work.

  • An inclusive workplace that promotes diversity and collaboration.
  • Access to ongoing learning and development opportunities.
  • Competitive compensation and benefits package.
  • Flexibility to support work-life balance.
  • Comprehensive health benefits for you and your family.
  • Generous paid leave and holidays.
  • Wellness program and employee assistance.

About the company

Publicis Sapient is a digital transformation partner helping established organizations get to their future, digitally enabled state, both in the way they work and the way they serve their customers. We help unlock value through a start-up mindset and modern methods, fusing strategy, consulting, and customer experience with agile engineering and problem-solving creativity. United by our core values and our purpose of helping people thrive in the brave pursuit of next, our 20,000+ people in 53 offices around the world combine experience across technology, data sciences, consulting, and customer obsession to accelerate our clients' businesses through designing the products and services their customers truly value.

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