Top Software Engineer Jobs

Develop server-side Java and object-oriented applications for Squarespace’s payments platform. Build high-volume production systems, rapidly prototype solutions, collaborate with engineers and designers, and ensure reliability for commerce-focused services. The role requires strong computer science fundamentals, scalable software design, readable code, database schema design, caching, and experience developing large-scale software.

Own the design, development, deployment, and maintenance of backend services, APIs, databases, integrations, and cloud infrastructure. Build secure REST and GraphQL APIs, optimize relational data systems, modernize service architecture, maintain CI/CD and testing, and implement privacy and security controls. Collaborate with frontend, QA, and product teams, review code, document systems, and mentor developers.

Develop and maintain energy simulation software for residential building design and verification. Implement energy codes and standards, improve modeling calculations, provide energy-modeling support to colleagues and customers, and collaborate with developers on product enhancements. The role requires software development skills, knowledge of heat transfer and building science, strong communication, and an engineering degree with thermodynamics coursework. Hybrid work requires approximately one day weekly in downtown Boston.

Design and execute software usability tests, run test scenarios, and prepare reports on test effectiveness. Role requires a Bachelor’s in Computer Science/Engineering (or equivalent) and 7+ years building, architecting, and troubleshooting large-scale infrastructure with a focus on reliability and scalability.

Design, architect, develop, test, and troubleshoot complex flight software for space systems. Write maintainable code, participate in code reviews, document software processes, and use version control. Provide technical leadership and mentorship while making high-level design decisions affecting program cost, schedule, and performance. Work with spacecraft flight software, embedded systems, networking, messaging, and software-in-the-loop and hardware-in-the-loop testing.

Develop, customize, test, and support MES Flexflow solutions. Gather requirements, design system integrations with Baan ERP, test equipment, and customer systems, and translate business needs into technical specifications. Provide L2/L3 incident support, root-cause analysis, corrective actions, onboarding support, and standardized documentation. The role requires strong programming, SQL/MSSQL, SQL Reporting Services, .NET, analytical, communication, and systems-integration skills.

Lead a four-person engineering team building a new product from concept through MVP and beyond. Act as a player/coach by writing code, fixing bugs, triaging customer issues, shaping architecture, and driving rapid weekly sprints with Product. Establish lightweight engineering practices, coordinate cross-team dependencies, incorporate modern tools, and maintain close customer feedback loops while balancing speed, quality, and long-term viability.

Build and scale full-stack products for child care businesses, agencies, and government organizations. Responsibilities include developing React and TypeScript frontend features, designing Node.js and Express backend APIs, operating cloud systems, improving performance and reliability, managing technical debt, conducting code reviews, collaborating cross-functionally, and engaging directly with customers. The role owns complex projects end to end and emphasizes rapid delivery, product impact, security, maintainability, and modern AI coding tools.

Paid, full-time summer intern researching emerging technologies and industry trends; designing, prototyping, and developing software applications and features; collaborating with engineers, architects, and product managers; documenting technical findings; presenting results; and testing, debugging, and refining prototypes.

Develops, tests, integrates, and maintains software products, utilities, and tools. Responsibilities include researching technologies, refactoring and optimizing code, building shared libraries, applying secure coding and test-driven development practices, managing continuous integration, and resolving bugs. Requires knowledge of C#, C++, object-oriented programming, client-server architecture, databases, and software development tools. SQL, web UI, PowerShell, and gaming industry experience are preferred.