Senior front-end developer building complex, interactive web applications using advanced JavaScript, HTML5, and CSS3. Collaborate with UX, product, and backend (Ruby/Java) teams to design reusable components, enforce client-side business logic, write unit tests, and improve product and processes in an Agile environment.
Job Description
Role: Sr. JavaScript Engineer / Developer
Location: BOSTON,MA
Join date : ASAP
Duration: 12 months+ assignment
This front-end developer will develop applications using advanced JavaScript, CSS3 and HTML5, working closely with our Ruby and Java engineers and our user experience team.
In this role you’ll:
- Collaborate with UX and product owners to define new features
- Create sleek customer-facing, complex, highly-interactive, web applications and services
- Treat JavaScript as a first-class citizen, with an emphasis on the “good parts” and unit testing
- Create code that cleanly segregates model, presentation, and business logic
- Design and implement reusable components and plug-ins
- Enforce business logic on the client
- Work with the user experience team and product owners to refine product flow and user interaction
- Active contributions to continual improvement of process and product.
- Work with our quality engineers to develop and automate tests
Requirements:
- B.S./M.S. in Computer Science or equivalent experience
- Self-motivated, creative, and detail oriented
- Craftsmanship level commitment to quality software
- Skilled in advanced JavaScript/CoffeeScript, HTML5, and CSS3
- Knowledge of Javascript libraries like jQuery, requirejs, prototype, Mustache or underscore
- Familiarity with gruntjs. npm, and node.js
- Familiarity with MVC frameworks like Backbone.js, Ember, or Angularjs
- Experience with Agile methodologies including Scrum or Kanban
- Actively experimenting with new technologies
Similar Jobs
Big Data • Fintech • Information Technology • Insurance • Financial Services
Own the enterprise strategy, roadmap, licensing, adoption, vendor relationships, and cost management for Microsoft Copilot and Anthropic Claude. Translate business needs into backlogs and requirements, guide platform selection, lead pilots and enablement programs, establish adoption and value metrics, and partner with Finance on FinOps. The role also drives responsible enterprise AI governance, training, support, and cross-functional stakeholder alignment.
Top Skills:
AgileAnthropic ClaudeClaude ChatClaude CodeClaude CoworkClaude For Financial ServicesClaude SkillsCopilot StudioFinopsLlmsMicrosoft 365 CopilotMicrosoft CopilotModel Context Protocol (Mcp)Prompt EngineeringScimSso
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Own and grow a local sales territory through extensive in-person prospecting, business visits, demos, networking, partnerships, and full-cycle deal execution. Build pipeline, sell Square’s software and hardware ecosystem to restaurants, retailers, and service businesses, manage onboarding partnerships, maintain Salesforce activity and forecasts, and consistently exceed sales quotas.
Top Skills:
Payment ProcessingSalesforce
Artificial Intelligence • Fintech • Insurance • Marketing Tech • Software • Analytics
Underwrite emerging mobility risks across commercial auto, workers’ compensation, general liability, and related insurance products. Build and manage a profitable, diversified book of business through risk analysis, pricing insight, broker and agent relationships, cross-selling, and collaboration with product, actuarial, legal, and claims teams. Provide thought leadership, communicate complex underwriting issues, and develop effective underwriting processes for evolving mobility businesses.
What you need to know about the Boston Tech Scene
Boston is a powerhouse for technology innovation thanks to world-class research universities like MIT and Harvard and a robust pipeline of venture capital investment. Host to the first telephone call and one of the first general-purpose computers ever put into use, Boston is now a hub for biotechnology, robotics and artificial intelligence — though it’s also home to several B2B software giants. So it’s no surprise that the city consistently ranks among the greatest startup ecosystems in the world.
Key Facts About Boston Tech
- Number of Tech Workers: 269,000; 9.4% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Thermo Fisher Scientific, Toast, Klaviyo, HubSpot, DraftKings
- Key Industries: Artificial intelligence, biotechnology, robotics, software, aerospace
- Funding Landscape: $15.7 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Summit Partners, Volition Capital, Bain Capital Ventures, MassVentures, Highland Capital Partners
- Research Centers and Universities: MIT, Harvard University, Boston College, Tufts University, Boston University, Northeastern University, Smithsonian Astrophysical Observatory, National Bureau of Economic Research, Broad Institute, Lowell Center for Space Science & Technology, National Emerging Infectious Diseases Laboratories


.png)
