Top Senior Software Engineer Jobs in Boston, MA

Build scalable backend services supporting growth experiments, e-commerce, and member engagement. Design and optimize APIs and infrastructure using Java, Kafka, Postgres, and AWS. Own development from requirements through deployment and monitoring, collaborate with Product, Design, Data, and Engineering teams, contribute to architecture decisions, and mentor junior engineers.

As a Software Engineer, you will build innovative products, enhance existing solutions, and collaborate with cross-functional teams in a fast-paced environment.

Design and scale backend data infrastructure for Beacon’s Datastore, including PostgreSQL models, Kafka event pipelines, GraphQL APIs, and warehouse dataset snapshots. Lead architecture for complex systems, write and tune SQL, debug cross-system issues, author RFCs, and collaborate with scientific, clinical, product, and engineering stakeholders. Mentor engineers, improve tooling and documentation, and strengthen operational reliability and data integrity across clinical and digital health platforms.

Design and implement CIAM backend services for authentication and authorization. Integrate identity systems, manage secure flows, and automate infrastructure.

Designs, develops, debugs, tests, and maintains software for semiconductor products, platforms, tools, and embedded systems. Collaborates with hardware, validation, quality, product management, and operations teams throughout the software development lifecycle. Participates in Agile ceremonies, code reviews, integration testing, root cause analysis, documentation, and release readiness while delivering reliable, maintainable software.

Develop and optimize high-throughput C++ algorithms for remote sensor data exploitation, image analysis, detection, and tracking. Design software architecture, work with databases and Linux systems, contribute to Agile teams and shared tools, and apply multithreading, concurrency, data structures, and performance optimization expertise.

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.

Build and enhance large-scale entity resolution and matching services using Java, Spring, cloud-native infrastructure, distributed systems, and machine learning. The role involves designing scalable, reliable, low-latency backend solutions; improving matching results; supporting millions of users and billions of documents; collaborating with product and architecture teams; and driving the long-term roadmap for matching algorithms.

The role involves managing data collection for AI model training at Speechify, optimizing ingestion pipelines on cloud infrastructure, and collaborating with scientists to enhance data quality and scalability.

Lead design and architecture of a cloud-centric, multi-tenant software + hardware product. Build distributed AWS-connected systems, mentor engineers, run design and failure-mode analyses, drive agile processes, collaborate with product/QA/app teams, and deliver high-availability solutions integrating cloud and on-site hardware.

Develop and deploy autonomy software for unmanned surface, underwater, and aerial vehicles in maritime missions. Responsibilities include motion planning, localization and tracking, safety assurance, COLREGS adherence, multi-agent coordination, distributed optimization, rigorous software testing, platform integration, deployment support, mission-log analysis, and autonomy R&D. The role also involves cross-functional collaboration, customer and demonstration support, roadmap development, and mentoring junior engineers. Travel is typically approximately 25% annually.

Build and expand fintech and payment systems using Go, microservices, databases, and cloud technologies. Design production APIs and tooling, diagnose customer issues, manage full release lifecycles, document systems, and mentor engineers. Collaborate with product and business teams while guiding AI agents to produce maintainable, observable, testable code that meets engineering standards. Work independently in a high-availability environment and contribute to next-generation financial products.

Provides architectural and technical leadership for institutional exchange systems, including matching engines, order management, market data, risk, and unified trading platforms. Leads ultra-low-latency distributed-system design, cross-team technical alignment, reliability standards, incident response, and multi-quarter initiatives. Maintains hands-on engineering contributions while mentoring senior engineers and developing technical leadership across teams.

Design, implement, and maintain partner integration solutions; translate partner requirements into scalable technical implementations; troubleshoot and automate fixes; collaborate with product and engineering teams to improve tools and ensure successful partner onboarding and launches.

Lead design and delivery of scalable customer-facing features, services, and APIs that process real-time data and AI-powered insights. Build web experiences, contribute to LLM/AI workflows, ensure reliability through observability and rollout practices, and collaborate cross-functionally with Product, Design, ML, and platform teams.

Lead a small engineering team developing and integrating mission autonomy software for Group 3–5 unmanned aerial systems. Responsibilities include autonomy technology leadership, edge-platform software integration, robotics algorithm development, simulation-based validation, proposal and contract support, program milestone management, customer interaction, and R&D roadmap collaboration. The role requires occasional travel and the ability to obtain and maintain a U.S. Department of Defense security clearance.

Develop production-grade robotics perception software for warehouse robots using 3D LiDAR and multisensor data. Own localization, state estimation, obstacle mapping, point-cloud processing, sensor calibration, and integration of machine-learning outputs. Optimize real-time edge-compute pipelines and make system-level architectural decisions for dynamic physical environments.

Lead technical strategy, build and maintain software systems using AI, mentor early-career engineers, collaborate across disciplines, and protect user privacy and security. The role involves developing scalable systems on AWS and Kubernetes while working with healthcare data and adhering to HIPAA and data-security best practices.

Build and operate high-throughput backend services powering AI agent orchestration, connector integrations, and real-time data pipelines. Design scalable core platform services, collaborate with ML, frontend, and product teams, implement infrastructure-as-code and CI/CD, and mentor junior engineers to deliver reliable, AI-powered features.

Design and build reliable backend services and integrations for Coinbase’s Unified Merge Gate. Lead automated code review, policy evaluation, CI evidence, authorization, merge controls, repository migrations, safe rollouts, observability, and operational ownership. Partner with Security, Compliance, Infrastructure, and engineering teams to improve software review and deployment workflows while measuring merge quality, review volume, time-to-merge, and escaped defects.

Design, scope, and implement scalable backend and platform solutions for a reservations and waitlist product. Improve performance and usability, collaborate with Product and Design, identify high-impact opportunities, and contribute across the stack including APIs and front-end integration.

Leads technical vision and strategy for Affirm’s Marketplace, Search, Ads Platform, and consumer experiences. Designs scalable full-stack platforms, guides architecture and technical excellence, coordinates initiatives across engineering teams, mentors engineers, and drives reliable delivery of customer-focused products across iOS, Android, and Web.

Architect and re-engineer highly scalable, resilient backend data systems supporting patient services. Lead distributed systems strategy, make architectural decisions, improve performance and reliability, mentor engineers, establish operational practices, and collaborate with product managers and cross-functional stakeholders to shape engineering and product direction.

Own end-to-end frontend development for core crypto payment flows across web and mobile. Improve latency, availability, and SLOs; build user-facing features (contacts, real-time transaction status); identify and fix performance bottlenecks; partner with product/design/backend; mentor junior engineers to reduce customer friction at scale.

Lead technical vision and architecture for Risk Technology, design scalable resilient systems, mentor engineers, contribute high-quality code, and drive cross-organizational technical strategy and reusable solutions.