Software Engineer II – Backend

Jobtailor; Boston (MA); On-site; USD 90,000 - 130,000; Full time

Job summary

Jobtailor in Boston is seeking engineers to design and build end-to-end features using React and Node.js for fast, scalable SaaS products. You’ll work across web and mobile apps, mapping interfaces, and data pipelines to deliver robust solutions.

Ideal candidates bring 3+ years in JavaScript/TypeScript, 1+ year React experience, plus comfort with Postgres and geospatial tech. A startup mindset and strong communication complete the profile.

Qualifications

• 3+ years of JavaScript/TypeScript with Node.js experience.
• 1+ year of React experience.
• Startup readiness: autonomous, fast-moving, proactive.
• Experience working on a SaaS product.
• Postgres experience is a plus; familiarity with geospatial frameworks (e.g., PostGIS, GeoJSON) is a plus.

Responsibilities

• Design and build end-to-end features with React and Node.js.
• Tackle web and mobile apps, mapping interfaces, data processing, and real-time collaboration tools.
• Profile and tune performance across the stack and ensure operational visibility with analytics and logging.
• Conduct code reviews and provide constructive feedback to grow the team’s technical capabilities.

Skills

JavaScript

TypeScript

Node.js

React

SaaS

Education

Degree in Computer Science

Degree in Civil Engineering

Tools

PostGIS

GeoJSON

Map Rendering

PostgreSQL

Job description

• Design and build end-to-end features, covering everything from database models to user-facing components using React
• Tackle a variety of areas: web and mobile applications, mapping interfaces, data processing pipelines, algorithmic relevancy, and real-time collaboration tools
• Profile and tune performance across the entire stack to ensure efficient and responsive systems
• Implement and maintain analytics, health monitoring, alerts, and logging to maintain operational visibility and system reliability

Requirements

• 3+ years of experience working with JavaScript or TypeScript, particularly with Node.js (or equivalent frameworks)
• 1+ years of experience working with React
• Start Up Ready: Autonomous, moves fast, takes initiative without being asked
• Experience working on a SaaS product
• Postgres experience is a plus
• Familiarity with geospatial frameworks (PostGIS, GeoJSON, map rendering libraries, etc.) is also a plus
• Conduct code reviews and offer constructive feedback to help grow the team’s technical capabilities
• Strong verbal and written communication, able to articulate ideas clearly and collaborate effectively
• A degree in Computer Science, Civil Engineering, or a related field (B.S. or M.S.)

Core Competencies

Demonstrates expertise in designing and building end-to-end features using React and Node.js, with a strong focus on performance tuning, analytics implementation, and operational visibility. Proficient in developing SaaS products and familiar with geospatial frameworks to enhance application functionality.

Highest-signal resume keywords

• JavaScript
• TypeScript
• Node.js
• React
• SaaS Product Development

ATS Optimization Keywords

Hard Skills

• Database Modeling
• Performance Tuning
• Data Processing Pipelines
• Algorithmic Relevancy
• Real-Time Collaboration Tools
• Code Review
• Postgres
• Geospatial Frameworks
• Map Rendering Libraries

Soft Skills

• Strong Communication
• Collaboration
• Initiative

Certifications & Qualifications

• Degree in Computer Science
• Degree in Civil Engineering

Industry Keywords

• SaaS
• Web Applications
• Mobile Applications