Senior Front-End Software Engineer
VDart Inc
Senior Front-End Software Engineer - React
Contract
Location - Los Angeles, CA / New York City, NY - Remote
Mandate Skills:
We're looking for a Senior Front-End Software Engineer to help build and optimize a streaming application used across various devices, most notably Smart TVs. This role is ideal for someone who cares deeply about performance and knows how to keep complex applications fast and stable on resource-constrained devices.
What You'll Do:
Contract
Location - Los Angeles, CA / New York City, NY - Remote
Mandate Skills:
- React 18.2.0 & TypeScript 5.9.2
- State Mgmt.: Redux, RTK
- Routing: React Router
- Testing: Vitest, Playwright (familiarity is fine)
- Preferred: Someone who has experience in app performance, measuring it, looking into things like debugging JS memory leaks.
We're looking for a Senior Front-End Software Engineer to help build and optimize a streaming application used across various devices, most notably Smart TVs. This role is ideal for someone who cares deeply about performance and knows how to keep complex applications fast and stable on resource-constrained devices.
What You'll Do:
- Build and maintain front-end features using React 18 and TypeScript
- Develop predictable and maintainable state management using Redux and Redux Toolkit (RTK)
- Identify, measure, and resolve performance bottlenecks related to rendering, memory usage, and application startup
- Debug and mitigate JavaScript memory leaks in long-running applications
- Strong experience with React and TypeScript
- Experience managing application state with Redux and RTK
- Familiarity with client-side routing patterns using React Router
- Solid understanding of front-end fundamentals (HTML, CSS, modern JavaScript)
- Experience with performance optimization - debugging, measurement, and implementation (e.g., profiling, monitoring, or performance tooling)
- Understanding of browser internals, rendering behavior, or performance bottlenecks in large SPAs
- Ability to work collaboratively in a cross-functional team
Vacancy posted 8 hours ago
Similar jobs that could be interesting for youBased on the Senior Front-End Software Engineer in United States vacancy
- ...As an engineer at Bask you will work directly with the CEO and CTO to build and design the software infrastructure that will serve as the backbone of telehealth. We are looking... ...implementation, to you'll have the opportunity to take end-to-end ownership and responsibility across...SeniorRemote work
- ...Senior Front-End Software Engineer (React/TypeScript) Location: Onshore – U.S.-based (Remote, with one-time travel) Employment Type: Contract (6 months) We are supporting a high-tech client in the software industry with the potential need for 4–5 U.S.-based Senior...SeniorContract workFor contractorsRemote workWork visaFlexible hours
- ...Senior Front-End Software Engineer - Global Team (India) Location: India Remote About the Role As a Frontend Engineer, you will join a top-tier engineering team to develop a brand-new mobile product aimed at delivering an exceptional user experience and making everyday...SeniorRemote workFlexible hours
$130k - $170k
...Title: Senior Front-end Software Engineer Location: Remote (Greater Boston-area preferred) Hiring Range: $130,000 - $170,000 Summary: We are looking for an experienced (6+ years) frontend software engineer specializing in Angular...SeniorFor contractorsRemote work$170k - $260k
...Senior Front End Software Engineer Opportunity ***An active or rein-statable TS/SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.*** Are you a Senior Front End Software Engineer who is ready...SeniorFull timeContract workRemote workWork from homeRelocation package- ...A financial tech company in the United States is seeking a Front-end Developer with 4+ years of experience in building production web applications using Typescript. You will develop innovative AI-powered solutions that simplify data transformation. Ideal candidates should...Senior
- ...Front End Senior Software Engineer We are seeking a full-time Front End Senior Software Engineer at Garmin's U.S. headquarters in the Greater Kansas City area. In this role, you will be responsible for designing and developing complex multi-system applications and...SeniorFull timeWorldwide
- ...Location: Austin, TX Employment Type: Full-time, In-Office Department: Engineering Salary: Top of market salary + equity We're hiring a Front-End Senior Software Engineer with experience building web applications and service oriented architecture to...SeniorFull timeWork at office
- ...Senior Full-Stack Java & Front-End Engineer United States Summary Join our established blockchain software house, specializing in enterprise‑grade private and public chain solutions. We are seeking a Senior Java Developer to enhance our backend services and contribute...Senior
- ...Senior Software Developer Cydecor is a premier Federal Government solutions provider, delivering differentiated innovations in mission... ...Here's what you need: ~6+ years of experience as Software Engineer developing distributed software applications using modern and...SeniorTemporary workRemote work
- ...API integration. The ideal candidate will possess a Bachelor's Degree in Computer Science or Mathematics and at least five years of software development experience. Knowledge of testing frameworks and performance optimization techniques will be essential for this...Senior
$65 - $90 per hour
...A leading health tech company is seeking a Senior Front-End Engineer on a 6-month remote contract. You will build high-performance UIs and collaborate closely with design and product teams to deliver innovative health solutions. The ideal candidate has over 7 years of...SeniorHourly payFull timeContract workRemote work$125k - $150k
GovCIO is hiring a Sr. Front End Developer for fully remote support of their Digital Services portfolio. The ideal candidate will develop high-quality web applications using React and Redux while emphasizing veteran-friendly user interfaces. A Bachelor's degree with at...SeniorRemote workFlexible hours- ...ROLE: Senior .Net Front End Engineer Duration: 1 year Location: Chicago, IL Responsibilities: Designing and developing... ...-ready presentation skills, Agile expertise Expected deliverables: Production software, technical strategy planSenior
$125k - $150k
GovCIO is hiring a fully remote Sr. Front End Developer to boost their Digital Services. The role requires expertise in React, Redux, and JavaScript/TypeScript on Ruby on Rails/Drupal. Ideal candidates will have 8+ years of experience and a passion for creating user-friendly...SeniorRemote workFlexible hours$125k - $150k
GovCIO is looking for a remote Sr. Front End Developer to enhance its Digital Services portfolio. The role requires expertise in building responsive interfaces using React, Redux, and JavaScript/TS, within a Ruby on Rails/Drupal stack. Applicants should have a Bachelor'...SeniorRemote workFlexible hours$125k - $150k
...GovCIO is hiring a Sr. Front End Developer to enhance their Digital Services portfolio. This fully remote role involves developing user-centric web applications using React, Redux, and JavaScript on Ruby on Rails/Drupal. Ideal candidates have extensive experience in web...SeniorRemote work$125k - $150k
GovCIO is hiring a remote Sr. Front End Developer to enhance its Digital Services development portfolio. The role involves developing high-quality web applications using React, Redux, and JavaScript/TypeScript on Ruby on Rails/Drupal. Candidates should have a Bachelor's...SeniorRemote work- ...A leading digital payments platform is seeking a Senior Front-End Engineer to design and build scalable web applications. You'll work closely with cross-functional teams to create effective user interfaces while owning the front-end delivery process. Required skills include...SeniorRemote work
$125k - $150k
GovCIO is hiring a Senior Front End Developer to join their Digital Services team, fully remote within the Continental USA. The role requires strong skills in React, Redux, and JavaScript/TypeScript, as well as experience with Ruby on Rails and Drupal. The position offers...SeniorRemote workFlexible hours$125k - $150k
...GovCIO is seeking a Sr. Front End Developer to enhance its Digital Services portfolio. This fully remote position requires expertise... ...Ideal candidates will possess a Bachelor's degree and 8+ years of software development experience. Responsibilities include developing...SeniorRemote workFlexible hours- ...Lead/Senior Front End Engineer Augment CXM is defining a new category of software - customer experience management - and powering it with a patented semantic neural network. This technology ensures that our clients deliver a fantastic customer experience every time....SeniorNight shift
$125k - $150k
GovCIO is seeking a Sr. Front End Developer to enhance its Digital Services development portfolio. This fully remote position requires expertise in React, Redux, and JavaScript/TS on a Ruby on Rails/Drupal stack. Ideal candidates will have over 8 years of experience, strong...SeniorRemote work- ...Job Title: Senior Front-End Engineer (React) Location: India bout the Role We are looking for a Senior UI Developer (React) to lead the development of a production-grade user interface for our existing application. This is a greenfield UI initiative, and you...Senior
$125k - $150k
GovCIO is seeking a Sr. Front End Developer to enhance our Digital Services portfolio. This fully remote position requires over 8 years of experience in web application development with solid proficiency in React, Redux, and JavaScript/TypeScript on Ruby on Rails and Drupal...SeniorRemote work- ...Position: Senior Front End Engineer (Angular) Location: Fremont, CA (In person) (Only Locals) Bayone / LAM Rate: $60/Hr on... ...Role: We are currently in search of an Angular Frontend Software Contractor to join Lam's Big Data and Enterprise Analytic...SeniorFor contractorsLocal area
- ...Senior React Web Developer/Engineer Here at Glenair, we are currently seeking to hire a Senior React Web Developer/Engineer to become an integral... ...Qualifications: ~5-10 years overall experience in Front End Web Development ~ High level of expertise in React ~...SeniorCurrently hiring
$130k - $170k
A leading software provider for construction is seeking a Senior Front-end Software Engineer to join their remote team. The role requires deep expertise in Angular and Typescript to develop a collaborative, real-time planning tool. Ideal candidates will have over 6 years...SeniorRemote work- ...Company Description Are you a senior front-end dev seeking to join a team of seasoned designers, developers and web marketers? Come join the leading web agency based in the historic Tivoli Theatre off Delmar in the Loop in St. Louis. Flexible work from anywhere opportunity...SeniorLocal areaRemote workFlexible hours
- ...Senior Front-End Engineer (React + Foundry) 6 Months Oakland, CA 94612 (100% REMOTE) About the Role: We are seeking a Senior Frontend Engineer to join the WiRE platform team supporting client's wildfire mitigation and compliance reporting systems. WiRE is a...SeniorRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Front-End Software Engineer. Be the first to apply!
Related searches
- associate front end developer United States
- junior front end developer remote United States
- remote frontend developer United States
- front end web developer part time United States
- frontend engineer United States
- entry level front end web developer United States
- remote front end web developer United States
- front end developer no experience United States
- entry level front end developer remote United States
- junior frontend developer United States

