Top Software Engineer Jobs in Boston, MA

Lead Guidewire system implementations and upgrades (Digital Portals), design and deliver Guidewire solutions, manage large projects, engage senior clients, provide strategic input, mentor teams, and ensure operational excellence and client satisfaction.

As a Senior UI Software Engineer, you'll lead front-end development, design user experiences, mentor junior engineers, and integrate AI capabilities into products.

Work on the Purchase team to design, build, and ship consumer-facing AI features (including conversational experiences). Collaborate with product, UX, and analytics across the full development lifecycle, use AI coding assistants, run A/B tests, monitor performance, and iterate to deliver scalable, user-centric features reaching millions of users.

As a Staff Engineer, you will lead technical challenges, architect solutions, mentor engineers, and define engineering excellence.

Develop user interfaces for air traffic systems, focusing on map-based applications and real-time data processing.

The Full Stack Engineer will develop products enhancing air operations, focusing on frontend features with technologies like React and backend APIs.

As a Senior Software Engineer, you will develop and validate real-time sensor software, integrate algorithms, and perform rigorous testing in a collaborative environment.

Build and maintain high-performance backend services in Go for a low-latency, high-throughput trading exchange. Design distributed systems, optimize performance, improve observability, and collaborate across Product, Data, and Ops to ensure resiliency and scalability.

The Lead People Systems Engineer will design AI-first People workflows, build scalable AI systems, and ensure responsible AI practices in HR operations.

Lead design and delivery of Klaviyo's scalable data platform (streaming, batch, lakehouse, governance). Define SLOs, author ADRs/RFCs, implement ingestion/CDC, processing, storage, catalog/lineage and access controls. Optimize performance/cost, apply ML/GenAI to data workflows, partner with product/analytics, contribute code/reviews, and mentor senior engineers to enable reliable, multi‑tenant data at scale.

Build and lead development of Klaviyo's conversational AI platform: native chat surface, agent orchestrator, and agentic UI. Design scalable, reliable systems, ship high-quality code, mentor engineers, drive technical decisions, and improve AI-powered customer experiences.

The HealthShare Solution Architect will design technical architecture, assist sales and implementation teams, ensure effective solutions, and provide client support throughout project lifecycles.

The Senior Applications Developer will create and enhance applications for internal users, provide technical support, and integrate various systems while leading multiple projects.

Full-stack software engineer focusing on frontend React components and backend microservices. Design and implement scalable, resilient solutions; build/integrate RESTful APIs with Java/Spring; participate in architecture and code reviews, CI/CD, monitoring, on-call rotations, and mentor junior engineers.

Senior solutions engineer who designs, builds and supports network automation applications for deployment and administration of Dell SONiC, Cisco ACI and Arista. Develops full-stack services (Python/Java/Node/React) on Kubernetes with IaC, CI/CD and observability; enforces security and code quality, mentors teams, and drives automation and AI-assisted tooling within Agile delivery teams.