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Senior Javascript Jobs in Massachusetts (NOW HIRING)

ICONSTAFF

Senior Platform Engineer

Cambridge, MA · Remote

$120K - $200K/yr

Senior Platform/Infrastructure Engineer Location: Fully remote (HQ Cambridge, MA) Hours: 9-5 EST ... Troubleshoot issues across multiple systems (Python, JavaScript, SQL). Requirements * 5+ years in ...

Capital One

Sr. Distinguished Engineer

Cambridge, MA · On-site

$114K - $156K/yr

Sr. Distinguished Engineer As a Sr. Distinguished Engineer at Capital One, you will be a part of a ... Web technologies (JavaScript, TypeScript and SPA frameworks) * Full ML development lifecycle using ...

Harvard University

Senior Software Engineer

Boston, MA

$133K - $175K/yr

The Senior Software Engineer uses Oracle APEX, JavaScript, jQuery, CSS, and web services to rapidly deliver secure, user-focused web applications and reports. This role employs REST design principles ...

The Grommet

Senior Software Engineer

Somerville, MA · On-site

$133K - $176K/yr

The Sr. Software Engineer role is responsible for developing object-oriented applications with PHP ... Demonstrable knowledge of modern web technologies, including Javascript, HTML and CSS * Mastery of ...

NAVA Software Solutions

Sr.Net Developer

Beverly, MA · On-site

$60.25 - $79.50/hr

Net Developer Details: Sr.Net Developer Duration: Full time/Direct Hire Location: Beverly, MA ... Familiarity with AngularJS/JavaScript Development. * Familiarity with ERP/CRM Software.

Harvard University

Senior Software Engineer

Boston, MA · On-site

$59/hr

The Senior Software Engineer uses Oracle APEX, JavaScript, jQuery, CSS, and web services to rapidly deliver secure, user-focused web applications and reports. This role employs REST design principles ...

Tasacom

Senior SQL Developer

Burlington, MA · On-site

Senior SQL Developer Location : Burlington, MA Duration : 6 Months contract Interview : Phone and ... JavaScript, jQuery, HTML, CSS SharePoint 2013/2016 experience, Nintex Workflow preferable ...

Inficare Technologies

Senior AWS Developer

Quincy, MA · On-site

$57.25 - $75.75/hr

Senior AWS Developer Location: Massachusetts (Hybrid) Job Type: Contract Experience: 8+ years Job ... React, JavaScript ES6+, HTML5, CSS3, Redux, WCAG 2.1 accessibility * Backend (4+ years): Python ...

Tasacom

Senior SQL Developer

Burlington, MA · On-site

Senior SQL Developer Location : Burlington, MA Duration : 6 Months contract Interview : Phone and ... skills - JavaScript, jQuery, HTML, CSS • SharePoint 2013/2016 experience, Nintex Workflow ...

SevenAI

Senior Frontend Engineer

Boston, MA · On-site

$133K - $183K/yr

We are seeking a Senior Frontend Engineer to join our core team. In this role, you'll take ... JavaScript and TypeScript. * Strong experience with frontend architecture, APIs and performance ...

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Infographic showing various Senior Javascript job openings in Massachusetts as of August 2026, with employment types broken down into 1% Internship, 79% Full Time, 7% Part Time, 1% Temporary, and 12% Contract. Highlights an 79% Physical, 5% Hybrid, and 16% Remote job distribution.

Senior Platform Engineer

ICONSTAFF

Cambridge, MA • Remote

$120K - $200K/yr

Full-time

Re-posted 9 days ago

Job description

Senior Platform/Infrastructure Engineer

Location: Fully remote (HQ Cambridge, MA)

Hours: 9–5 EST, with 2-day on-site visits every 6 weeks


You’ll be responsible for designing, scaling, and maintaining the infrastructure and internal developer platforms that power a real-time learning AI at a seed-stage startup. The role blends infrastructure ownership with platform engineering to enable AI/product teams to ship quickly and reliably.


Key Responsibilities - Infrastructure

  • Maintain production health: performance, reliability, cost efficiency, and security.
  • Manage GCP Kubernetes clusters (GKE), networking, storage, and compute resources.
  • Handle scaling, resource allocation, and high availability for growing customer demand.
  • Refine observability: logs, traces, metrics, dashboards, and alerts.
  • Perform security hardening and cost optimization.


Kep Responsibilities - Platform Engineering

  • Build internal tooling and abstractions for developer productivity.
  • Design CI/CD pipelines using GitHub Workflows and ArgoCD.
  • Provide self-service environments, internal portals, and deployment systems.


Collaboration & Communication

  • Work closely with AI and full-stack teams to optimize system architecture.
  • Explain technical concepts and trade-offs clearly to engineers and non-engineers.
  • Troubleshoot issues across multiple systems (Python, JavaScript, SQL).


Requirements

  • 5+ years in production cloud environments at scale.
  • Strong familiarity with GCP (primary) and some AWS experience.
  • Experience with Kubernetes (GKE), node pools, and memory-intensive jobs.
  • Working knowledge of CI/CD systems (GitHub Workflows + ArgoCD).
  • Exposure to observability tools (Datadog), databases (Cloud SQL, ClickHouse, Bigtable), and cloud services.


Skills & Qualities

  • Strong analytical and problem-solving ability.
  • Clear, collaborative communication.
  • Curiosity and ownership mentality.
  • Fluent in reading/debugging code across Python, JavaScript, SQL.


Technical Stack

  • Cloud: GCP (primary), AWS (secondary)
  • Kubernetes: GKE, multiple node pools
  • CI/CD: GitHub Workflows + ArgoCD
  • Data: Cloud SQL, ClickHouse, Bigtable, GCS, Dataflow
  • Networking: Cloudflare Workers, Durable Objects, WebSocket communication
  • Monitoring: Datadog
  • Environments: Production, Staging, Integration, Development