Top Software Engineer Jobs

Develops, implements, tests, and demonstrates advanced signal processing, optimization, and machine learning algorithms for radar, electronic warfare, and remote sensing systems. Responsibilities include algorithm research, modeling and simulation, multidisciplinary systems integration, laboratory and field testing, technical presentations, customer collaboration, and transitioning research into operational prototypes. Requires scientific programming, strong analytical skills, and the ability to obtain a Top Secret clearance.

Develop, integrate, test, debug, and maintain software supporting advanced analytics, machine learning, and intelligence workflows. Implement well-scoped features, APIs, data-processing capabilities, integrations, and defect fixes while applying version control, automated testing, secure coding, documentation, and code review practices. Collaborate with engineers and researchers, support system integration and releases, improve existing systems, and progressively own software components.

Staff backend infrastructure engineer responsible for platform reliability, performance, regional resilience, failover, migrations, data pipelines, observability, incident response, and shared engineering tooling. The role leads cross-team technical direction, mentors engineers, and partners with security and compliance in a regulated financial services environment. Key technologies include Java, MongoDB, Kubernetes/GKE, Terraform, Datadog, and cloud infrastructure.

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.

Designs, develops, tests, and architects complex flight software for space systems. Responsibilities include writing maintainable code, collaborating on requirements, managing changes with version control, conducting code reviews, troubleshooting, documenting processes, and mentoring engineers. The role requires advanced software development expertise, technical leadership, and an active Top Secret clearance with SCI eligibility and a full-scope polygraph.

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.

Design, implement, test, debug, and operate scalable backend services such as identity, friend graph, and persistence systems. Collaborate across teams to deliver product solutions while maintaining availability, scalability, security, operational excellence, and cost efficiency. Investigate incidents and hotfixes, apply distributed-systems best practices, and use AI-assisted development tools while auditing output for quality and security.

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.