Senior Lead Software Engineer

Senior Front-End Software Engineer (Angular / TypeScript)

Role Overview
We are seeking an experienced, analytical, and versatile Senior Software Engineer to join our fast-paced product engineering team. In this role, you will design, develop, and maintain high-scale enterprise web applications utilizing modern front-end architecture patterns. You will work closely with product, UX, QA, and architecture teams to drive roadmap execution, optimize application performance, and ensure rigorous quality standards.

This is a hands-on engineering position for a skilled developer who excels at building robust user interfaces and managing complex data flows. Beyond core development, you will serve as a primary point of contact for triaging production issues, coordinating cross-functional resolutions, and bridging communication between regional and global technical teams. If you possess deep expertise in Angular, TypeScript, and modern enterprise testing practices, we want to hear from you.

Key Responsibilities
Front-End Development & Architecture
Application Engineering: Design, build, and scale large-scale enterprise web applications utilizing Angular (v17-v22), TypeScript, RxJS, and NgRx state management patterns.
API Integration: Implement robust RESTful API integrations, efficient data transformations, and seamless back-end data synchronization to support high-availability platforms.
Performance Optimization: Monitor and optimize front-end performance, troubleshoot complex production issues, and deliver secure, highly responsive web experiences.
Production Support & Triage: Act as a key technical point of contact for investigating, triaging, and coordinating the resolution of production incidents across distributed engineering teams.

Quality Engineering & Collaboration
Automated Testing: Author comprehensive unit tests, integration tests, and end-to-end (E2E) automation scripts utilizing Jest and Cypress, consistently achieving high code coverage and reliability.
DevOps & CI/CD: Leverage modern DevOps practices, automated build and deployment pipelines, and code quality gates to manage secure release cycles.
Cross-Functional Partnership: Collaborate seamlessly with Product, UX, QA, and Architecture groups to drive technical discussions, align engineering objectives, and execute project roadmaps.
Global Coordination: Utilize bilingual fluency in Japanese and English to facilitate clear technical communication and alignment between regional stakeholders and global development teams.

Qualifications & Requirements
Minimum Qualifications
Education: Bachelor's Degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline (or equivalent practical work experience).
Experience Baseline: Minimum of 5+ years of professional experience in front-end software engineering, specializing in enterprise-grade web applications.
Technical Mastery:
oExtensive hands-on expertise with Angular (v17-v22), TypeScript, RxJS, and NgRx.
oProven experience implementing automated testing and quality assurance frameworks using Jest and Cypress.
oStrong working knowledge of CI/CD pipelines, automated build/deployment processes, and release management.
oLanguage Proficiency: Fluent in Japanese and English (written and verbal) to support cross-regional engineering and stakeholder coordination.
Core Competencies: Exceptional problem-solving and analytical abilities; strong interpersonal communication skills; proven ability to thrive in a fast-paced, distributed team environment.

Preferred Attributes
Hands-on familiarity with Akamai CDN, web caching, and edge-routing services.
Professional background supporting global e-commerce, consumer-facing portals, or high-traffic enterprise platforms.
Advanced knowledge of modern front-end design patterns and performance profiling tools.

Equal Opportunity Employer / Disabled / Protected Veterans

The Know Your Rights poster is available here:
_EEOC_KnowYourRights6.12.pdf

The pay transparency policy is available here:
_%20English_formattedESQA508c.pdf

For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.

We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.

AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.
_Participation_Poster_ES.pdf

We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

Additional Skills

(none specified)

AllSTEM Representative Contact Info

Account Executive:

Nichols

Branch Phone:



Location:

Ontario, CA