Top Senior Level Software Engineer Jobs in Boston, MA

Provides senior-level technical leadership and hands-on development for network automation applications and infrastructure-as-code platforms. Builds full-stack services with Python, Java, JavaScript, Node.js, React, and Kubernetes; manages GitHub-based CI/CD; performs security and code reviews; and supports Dell SONiC, Cisco ACI, and Arista network environments. The role also develops observability, applies AI-assisted automation, troubleshoots infrastructure issues, participates in incident management, and mentors engineering teams.

Lead the evolution of Anaplan into a cohesive enterprise planning platform. Define architecture standards, integrations (Snowflake/IDMC/AWS), governance, roadmaps, and mentor teams. Provide technical oversight, incident support, and drive adoption of best practices, security, reliability, and AI inclusion in planning.

Leads the design, development, testing, and modernization of high-performance trade management platforms supporting FICC and derivatives across the full trade lifecycle. Builds scalable Java and Python distributed systems using microservices, cloud-native architecture, gRPC, service mesh, and messaging technologies. Collaborates with traders, quants, product owners, and technology teams; establishes engineering standards, resolves complex technical issues, leads initiatives, and mentors engineers.

As a Software Engineer III, you will design, build, and enhance high-complexity components, mentor team members, and collaborate on projects, ensuring high-quality code and customer-centric solutions.

Lead and grow multiple product-focused engineering teams to design, build, deploy, and operate scalable, highly available full-stack and microservice solutions on AWS. Mentor engineers, drive engineering practices, break monoliths into microservices, improve velocity, and collaborate with product managers to deliver finance-focused systems including event-driven streaming and integrations.

Lead the technical architecture and strategy for Klaviyo’s developer infrastructure, backend dependencies, platform upgrades, and distributed systems. Improve developer productivity, reliability, scalability, security, and deployment processes. Diagnose complex platform issues, establish monitoring and telemetry, mentor senior engineers, influence cross-functional architecture decisions, and evaluate emerging technologies including responsible AI tools.

Design, build, and operate Klaviyo’s large-scale asynchronous processing and queueing platforms. Develop resilient, low-latency, multi-tenant systems using Python, Go, AWS, Kubernetes, Apache Pulsar, Kafka, and SQS. Own system reliability, observability, scalability, incident response, and SLOs. Collaborate on technical designs, mentor engineers, improve platform tooling and processes, and participate in on-call rotations.

Full Stack Engineers will design, develop and implement features for a SaaS product using React, Typescript, Django, and Python, collaborating within an agile team.

Design, develop, and maintain full-stack web applications hosted in the cloud. Implement front-end UIs, build backend APIs interacting with cloud services, containerize apps, collaborate with infrastructure engineers, follow Agile and DevSecOps practices, and contribute to extensible, object-oriented codebases.

Provide 3rd-level support and engineering for end-user computing and mobility across corporate and retail. Design and document setup, installation, patching, and support processes. Test and deploy solutions (Intune, Autopilot, AVD, endpoint management), troubleshoot systems, analyze data for service improvement, collaborate with architecture and supplier partners, and drive continual service delivery enhancements.

Design and scale resilient, high-performance distributed systems and frameworks. Define architectural solutions, lead design reviews, build prototypes and production systems, embed reliability and observability, and partner with Product, Infrastructure, and Platform teams while mentoring engineers.

As a Senior Software Engineer, you will design and implement software solutions, support integration and testing, and collaborate across teams to address national security challenges.