Senior JavaScript Engineer Jobs

Senior Javascript Engineer

As a Contract Senior JavaScript Engineer at Fueled, you will lead and build Reac...

Location

Global

Salary:

Not provided

10up

Expiration Date

Until further notice

Requirements

Building scalable web-based JavaScript applications with ES6+, React, and Node
architectural concepts behind React – state and data management, JSX, creating a componentized system, and JavaScript tooling
knowledge of WordPress as a platform, including custom post types, taxonomies, and use of WordPress beyond typical blog use cases
having a code portfolio of real-world samples
preferring to work fully remote and effectively engaging in a distributed team.

Job Responsibility

Lead, architect, and build React projects with modern JavaScript
estimate JavaScript work and modularize goals into clearly defined, executable tasks
provide code reviews
skillfully connect engineering deliverables to client business objectives
create apps and tools that reach millions of online visitors every day.

What we offer

Flexible and alternative work schedules
access to project invitations tailored to your expertise and availability.

New

Senior Full-Stack JavaScript Engineer

We are looking for passionate people who enjoy working in a team-oriented enviro...

Location

United States

Salary:

Not provided

SitePen

Expiration Date

Until further notice

Requirements

Senior full stack engineer with at least 10 years of full-time experience
Very experienced in delivering Enterprise Software (SaaS, IaaS, etc.)
Effective communicator with Product and Business teams
Able to provide examples of scalable, performant code
Confident in preferred architectures and tools
Committed to code quality, ownership & accountability
Passionate about the web platform
Interested in learning new technologies, standards, and techniques
Self-disciplined, able to work and communicate effectively in a fully remote environment
Able to lead and delegate when needed

Job Responsibility

Write new web applications for our customers
Provide upgrades and fixes to our customers' existing apps
Provide technical assistance and support for our customers' development teams
Participate in coaching, training, and leveling up other developers
Contribute patches and enhancements to many open source projects
Enjoy a refreshing work-life balance

Fulltime

Senior Front End Excel / Javascript Engineer

DEPT® is looking for a strong Front End Developer with extensive experience with...

Location

Argentina , Gran Buenos Aires, Capital Federal, Mar del Plata

Salary:

Not provided

BASIC/DEPT®

Expiration Date

Until further notice

Requirements

Strong Front End Developer with extensive experience with Office Javascript API
Proficiency in frontend frameworks like React, Angular, or Vue.js
Understanding of Excel Add-in development
Familiarity with Office Add-ins platform, its architecture (manifest file and web application components), and deployment methods
Experience with Office JavaScript API, HTML, CSS, JavaScript (or TypeScript), Frontend Frameworks (React, Angular, Vue.js), Node.js, Office Add-ins Development Kit, Visual Studio Code, Yeoman
Based in Argentina or Uruguay
English communication skills

Job Responsibility

Building User Interfaces in Excel: Designing and developing task panes, custom ribbon buttons, menus, and other UI elements within Excel
Integrating with Excel Functionality: Using the Office JavaScript API to read and write data, interact with Excel objects (like charts and tables), and extend its capabilities
API Integration: Connecting the add-in to external data sources or APIs to retrieve or send information
Performance Optimization: Ensuring the add-in loads quickly and user interactions are responsive

What we offer

Collaborative, open-door, best-idea-wins environment that fosters personal and company growth
Equal opportunity employer (EOE)
Inclusive and barrier-free recruitment and selection process and workplace
B Corp-certified company passionate about purpose-driven work

Software Engineer / Senior Software Engineer

ARiA is looking for highly motivated self-starters and low-ego team players to j...

Location

United States , Madison; Alexandria; Seattle

Salary:

Not provided

Applied Research in Acoustics

Expiration Date

Until further notice

Requirements

Applicants selected for employment will be subject to a government security investigation and must meet eligibility requirements, including U.S. citizenship, for access to sensitive information
Bachelor’s degree or greater in a relevant technical field (Computer Science, Engineering, or equivalent)
Expertise designing and developing code using modern programming/scripting languages such as C, C++, Golang, JavaScript (and variants), and Python
Expertise developing and deploying software in an agile, continuous-integration (CI) framework across a variety of hardware platforms (desktop, server, cloud) using modern tools including containerization (e.g., Docker, Kubernetes)
Exceptional ability and desire to acquire new knowledge and skills to solve challenges
Ability to work independently but collaboratively
Ability to manage multiple projects in a fast-paced professional office environment
Ability to communicate technical solutions to colleagues and customers
Superior oral and written communications skills

Job Responsibility

Algorithm and software design, development, research, and testing to support prototypes and products
Supporting the transition of research algorithms to fielded systems
Preparing documentation to summarize design and status of prototypes and products
Assisting with in-field integration, testing, and support, with some local travel required
Developing an interface between a C++ underwater-acoustics physics engine and a video game for education and training
Developing a JavaScript backend for a scenario-design and management tool for players and integration of that system with a learning-management system (LMS)
Developing algorithms and software for a cloud-deployed cognitive tool that allows natural-language query of legal documents to answer user questions about government regulations and supporting the DevOps process for deployment of the prototype

Fulltime

New

Senior Software Engineer - Application Engineer

This is a career-defining opportunity to play a crucial role in a hyper-scale AI...

Location

United States , Salt Lake City

Salary:

Not provided

PassiveLogic

Expiration Date

Until further notice

Requirements

5+ years in software engineering, computer science, front-end web-application development, or a related field
Strong JavaScript, TypeScript, or Swift experience
Strong algorithms, data structures, and coding background
Experience with user interface frameworks (e.g. Angular, React, Vue, Swift UI etc.)
Extraordinary teammate with excellent interpersonal skills
Exceptional communication skills: Ability to collaborate across teams, clearly communicate technical concepts to non-technical stakeholders, and document solutions effectively.
Organized and strategic: Experience in managing complex engineering projects, including timelines, scope, and deliverables, with attention to detail.
Collaborative mindset: Use your skillset to work flexibly across multiple teams and application.
Adaptability: Comfortable in a fast-paced startup environment, eager to learn, iterate, and innovate.
Problem solving: You own this role. When issues arise, be the empowered force that solves them, driving solutions to completion.

Job Responsibility

Design and Implement Front End Architecture: Lead the design and implementation of front end architecture to support native-quality web applications for multi-platform deployment.
Contribute Across Teams: Collaborate cross-functionally to build our technology and celebrate our shared successes. Be impact-driven, seek to be a good employee, neighbor, and global citizen.
Optimize Systems-level Performance: Be a systems-level thinker who researches before they act and values sound processes and broad thinking.
Prioritize Execution, Stability, and Velocity: Focus on delivering short-term wins while maintaining a long-term vision within our shared architecture. Take pride in the impact of our products and in delivering a 'wow' customer experience.
Nerd Out About Your Craft: Dive deep into the details and continuously refine your expertise.

What we offer

Competitive compensation
Generous equity share package
Medical, dental and vision coverage
Disability and life Insurance options
Flex PTO
Team-building events
Free catered lunch in the office Monday — Friday
Free ski pass (We are at the base of Big Cottonwood Canyon)
Free National Park pass

Fulltime

New

Senior Software Engineer, Product Engineering

Everlaw is looking for a Senior Software Engineer with experience building and s...

Location

United States , Oakland

Salary:

164000.00 - 239000.00 USD / Year

Everlaw

Expiration Date

Until further notice

Requirements

BS or MS in Computer Science, or equivalent coursework
Experience and proficiency in coding in a language such as C, C++, C#, Java, Python, Javascript, Go or Rust
Good knowledge of algorithms and fundamental computer science concepts, relational databases, API design, and building user interfaces
At least 5 years of experience building distributed systems in the cloud with service based architecture, using frontend frameworks to create rich, deep, web applications, and experience with the best practices to test, maintain, and launch cloud based software
At least 1 year of experience leading or coordinating multi-developer efforts, including planning and technical breakdown

Job Responsibility

Build customer-facing features that represent the core of our product, including document and image/multi-modal processing, collaborative review tools, organization, translation tools, search, review, and more
Use AI technologies to find the evidence rapidly such as document classification, predictive coding, transfer learning and LLMs
Collaborate with one or more of the Product, Design, Engineering Operations, Security Engineering, and DevOps teams to build out and implement new features that are used in our production environments
Help with scaling our system to larger datasets with hundreds of millions of documents
Provide Technical Mentorship to other engineers by both sharing your technical knowledge and becoming an expert in an area of our code base
Be a Code Reviewer by reviewing code developed by others using your knowledge of programming languages, design patterns, and best practices
Fix defects in our product by triaging product or system issues and writing code to debug, track and resolve these issues
Provide on-call support for the product by answering questions from customers, triaging defects and exceptions, and carrying the pager
Contribute to documentation for internal engineering consumption or for external the Everlaw platform
Do technical interviews to help us recruit engineers and grow the team

What we offer

Equity program
401(k) retirement plan with company matching
Health, dental, and vision
Flexible Spending Accounts for health and dependent care expenses
Paid parental leave and approximately 10 days (80 hours) per year of sick leave
Seventeen paid vacation days plus 11 federal holidays
Membership to Modern Health to help employees prioritize mental health and wellness
Annual allocation for Learning & Development opportunities and applicable professional membership dues
Company-sponsored life and disability insurance
Work in Downtown Oakland, just steps from the BART line and dozens of restaurants

Fulltime

New

Senior Software Engineer

Our senior software engineers don’t shy away from tackling the greatest of obsta...

Location

Philippines , Makati City

Salary:

Not provided

LawAdvisor Ventures Ltd.

Expiration Date

Until further notice

Requirements

6+ years of experience
Extensive professional development, documentation, and maintenance experience across the full software development lifecycle
Mastery in HTML, CSS, and JavaScript
Strong written, verbal and interpersonal skills
Experience working with relational databases and efficient data design and access (ORM, DAO, and SQL)
Experience with Git
The ability to steer the development of our team members and continuously bring forward new ideas
The ability to learn and become proficient in other programming languages in a short span of time

Job Responsibility

Work alongside a team of talented engineers, designers, product managers and quality assurance specialists to build and deploy exciting features and beautiful products
Know your fundamentals: you’re able to not just understand all the phases of the software development lifecycle but contribute to it to keep moving it forward
Uphold and refine standards relating to the quality, design, performance and security of code across the engineering team
Design and create: you write well-thought, efficient, production ready code
Become a leader in our product development team by partaking in solution design meetings, hiring interviews, and code reviews
Propose and contribute to new approaches and solutions to ensure we future-proof LawAdvisor’s infrastructure as we continue to scale globally

New

Senior Software Engineer

About the Role: As a Senior Software Engineer at Dotdigital, your role will invo...

Location

Poland; South Africa

Salary:

Not provided

Dotdigital

Expiration Date

Until further notice

Requirements

Strong expertise in .NET (console and web apps)
JavaScript (jQuery, VueJS)
TypeScript
HTML+CSS (Sass, Scss etc)
MSSQL with experience in other languages beneficial
Experience with cloud computing platforms, particularly Azure
Production experience in self-contained integration development
Experience with modern real-time analytical data platforms
Strong problem-solving skills and the ability to champion any given problem
Leadership, proactive, and communication talents, working well independently and within a remote team environment

Job Responsibility

Utilizing .NET and JavaScript programming languages to develop and maintain applications for our customers
Supporting multiple existing customer integrations hosted in our Azure web and task server environment
Working with our Solution Architects to bring their solution designs to life by collaborating with them through the entire project life cycle
Collaborating closely with Core Development, DataOps, and ServiceOps teams
Involvement with database design and maintenance for our integrations
Ownership of maintaining and improving our framework libraries
Continuously improving processes and finding opportunities for innovation

What we offer

Parental leave
Medical benefits
Paid sick leave
Dotdigital day
Share reward
Wellbeing reward
Wellbeing Days
Loyalty reward

Fulltime

Senior JavaScript Engineer

SitePen

Location:
United States

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
December 12, 2025

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