Top Software Engineer Jobs in Boston, MA

As a Senior Full-Stack Software Engineer, you will build AI-centric web applications in TypeScript, manage project priorities, and make technology decisions while collaborating with Product and Design teams.

Design and implement secure, scalable backend services for voice agents, integrate AI models and telephony, improve inference, debug concurrent systems, and collaborate with Product to deliver features end-to-end.

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

Build and optimize backend data pipelines and calculations for 7M+ securities using Python/Django. Implement Airflow pipelines, pandas/Celery-based async calculations, database query tuning, caching, scalable data models, incident investigation, code reviews, and cross-team collaboration to ensure timely, accurate financial data.

Lead architecture, modernization, and development of Group Insurance applications. Modernize mainframe monoliths into Java microservices and micro-frontends on cloud, mentor distributed Agile teams, collaborate with enterprise architecture, product owners and infrastructure, and enable test automation and integrations. Approximately 10% domestic travel.

Build and own Eve's marketing site and GTM engineering stack: integrate and optimize external tools, design AI agents for sales and marketing, implement webhooks and middleware to sync product/CRM data, and create programmatic campaigns and internal tools in partnership with Marketing, Sales, RevOps, and Product to drive growth and automation.

Lead frontend-leaning full-stack implementation work for carrier and enterprise integrations: architect reusable UI and API layers, author RFCs, guide technical delivery, enforce testing and security best practices, and partner with cross-functional teams to scope and ship production integrations.

Build, operate, and scale backend systems for card issuing and transaction processing. Break down projects, collaborate with product and cross-functional teams, write tested extensible code, support monitoring and on-call operations, and participate in team growth activities including interviews.

As a Senior Software Engineer in Trust & Safety, you'll analyze threats, design systems for abuse detection, and collaborate with teams to implement scalable defenses.

Design, build and modernize cloud-native services and scalable APIs in an agile team. Collaborate with product and engineers, prioritize user needs, ensure quality via test- and behavior-driven development, and improve performance, reliability, and efficiency.

As a Backend Software Engineer II, you will design and develop APIs, collaborate with teams, and enhance the software lifecycle. You will work with stakeholders to shape system architecture and improve overall software performance.

Design, build, and maintain scalable, reliable full‑stack systems. Contribute to API and architecture design, write testable code, debug complex issues, improve performance, automate deployments, and mentor junior engineers while collaborating with cross‑functional teams.

Design, build, and maintain scalable, reliable systems and APIs across a primarily TypeScript stack. Deliver features independently, improve performance and observability, contribute to architecture and CI/CD, debug complex issues, and mentor junior engineers while collaborating with cross-functional teams.

Develop and implement full stack features for a healthcare platform, focusing on both frontend (React) and backend (Node.js) development. Responsible for performance optimization, API creation, testing, and collaboration with data engineering teams.

Build and own full-stack, enterprise-grade analytics and reporting features—from data access and storage to front-end visualizations. Collaborate with Product, Design, Data Science and cross-functional teams to deliver AI-assisted, customizable reporting that drives adoption, retention, and action within the Klaviyo platform.

As a Billing & Analytics Software Engineer, you'll design and maintain the billing pipeline, integrate billing systems, and develop customer-facing analytics dashboards to support revenue recognition and operational observability.

As a backend engineer, you will enhance data collection systems to ensure reliability and scalability, working closely with engineering and mission teams.

Lead a team of software engineers supporting critical retail-banking applications. Design and develop software solutions, provide technical guidance, review code and documentation, troubleshoot complex incidents, and apply SRE practices. Maintain on-call rotation for after-hours critical incidents. Use OpenShift, Hogan, Dynatrace, and Linux; collaborate on releases and modernize application delivery.

Lead technical direction and maintenance of a React Native mobile app for iOS and Android. Improve security, authentication (Okta/MSAL/OIDC), Intune device-compliance, CI/CD and release engineering, dependency and SDK upgrades, automated testing, and documentation. Mentor engineers, partner with Security/DevOps/Product, and own production support, crash triage, and app-store compliance.

Lead high-leverage technical work across teams: define architecture and patterns, drive end-to-end delivery and operational excellence, ship AI-enabled systems, mentor engineers, set AI guardrails, and represent technical leadership internally and externally.

Lead diverse technology projects in distributed microservices and full stack systems, mentoring team members and collaborating with product managers on cloud-based solutions.

Lead a team of developers delivering cloud-based Salesforce and full-stack solutions. Drive a portfolio of distributed microservices projects, mentor engineers, collaborate with product managers, and implement integrations using Apex, Lightning, web technologies, SOQL, and REST/SOAP APIs. Participate in architecture, code evaluation, and technology community engagement.

Lead a portfolio of cloud-based, distributed microservices and full-stack projects for Finance Tech. Mentor engineers, collaborate with product managers, drive regulatory and reporting solutions, and leverage languages and cloud/container technologies to deliver scalable financial data products.

Lead technical design and hands-on development of low-latency, event-driven trading and market data platforms. Drive architecture, engineering standards, CI/CD, observability, and AI-assisted tooling; collaborate with product and solution teams; mentor engineers; ensure resilient, secure, cloud-native solutions aligned with enterprise strategy.

The Lead Software Engineer will develop advanced technologies, design software solutions, and collaborate on multi-disciplinary teams to solve national security challenges.