Top Senior Software Engineer Jobs in Buffalo, NY

Build and ship full-stack features in weekly loops, owning problems end-to-end from stakeholder discovery to production, using TypeScript/Node backend and React/React Native frontends, leveraging AI-paired tools, and making scalable architectural decisions while collaborating with cross-functional teams.

Lead architecture, delivery, and operation of large distributed telemetry databases. Define technical strategy, SLOs/SLIs, and reliability practices; drive performance, cost, and observability improvements; lead incident response and cross-team projects; mentor engineers; and represent engineering to stakeholders.

Seeking a Staff Software Engineer to lead the design and evolution of the entity data platform, focusing on data ingestion, resolution, and delivering accurate data. Responsibilities include system architecture, improving reliability, and mentoring team members.

The Principal Software Engineer will lead the development of Node-based applications, ensuring alignment with business goals and mentoring engineers. Responsibilities include designing scalable systems, managing product requirements, and utilizing AI tools for software development.

As a Staff Software Engineer, you will architect and build high-impact systems, mentor engineers, solve complex technical challenges, and lead cross-organizational initiatives in a fast-paced AI infrastructure environment.

Develop and maintain performant web applications in Go and Vue.js, design and implement RESTful APIs, optimize SQL queries and schemas, collaborate with product and design, participate in code reviews and testing, and work with cloud providers and CI/CD to improve platform performance and reliability.

Design and develop high-performance services and APIs, focusing on cloud-based applications using Golang and Python, while ensuring code quality and security.

As a Principal Software Dev Engineer, lead full-stack engineering, oversee complex initiatives, mentor engineers, and align technical strategies with business goals to enhance content management systems.

As a Senior Software Engineer, you will design and build backend services for Postgres integration with ClickHouse, ensuring operational excellence and contributing to automation and tooling for database management.

The Senior Software Engineer will design and develop IMS TM and DB-compatible technologies, providing architectural leadership and mentoring while optimizing mission-critical applications for modern environments.

Responsible for designing, building, and operating AI-powered features, scalable APIs, and maintaining integrations within ClickHouse's AI/ML ecosystem.

Seeking a Senior Elixir Engineer to develop scalable systems and contribute to technical decisions within product groups, focusing on Elixir and cloud technologies.

Lead QA activities for an IAM program: design and implement QA methodologies, create and run manual and automated tests, perform code/product reviews, triage defects, validate functionality/performance/security, and support CI/CD, UAT, and release validation across Agile teams.

Lead end-to-end design and delivery of AI-infused, enterprise full-stack applications on Azure. Architect resilient solutions, build Copilot/agentic features, enforce engineering best practices, mentor engineers, collaborate with PM/UX teams, ensure quality/reliability, and support production services and integrations.

Design, build, and operate Redpanda Cloud services across AWS, GCP, and Azure. Own features end to end, lead technical architecture, and develop automated provisioning, deployment, upgrades, and self-healing systems. Maintain reliability, scalability, security, resilience, and observability for a 99.99% SLA. Participate in on-call operations and collaborate with Cloud, Core, AI, Platform, product, and customer-facing teams.

The Senior Software Engineer will develop reliable systems for IoT fleet management, create user interfaces, and support data engineering tasks.

As a Senior Software Engineer, you will architect and implement Python-based systems, lead feature design and delivery, ensure scalability and reliability, and mentor junior engineers.

The Staff Software Engineer will design and build scalable systems, lead architecture decisions, mentor engineers, and improve existing platforms using PHP, Node.JS, and AWS.

Design and build scalable backend components and indexing pipelines for semantic and hybrid retrieval, build retrieval orchestration and knowledge-graph services, improve retrieval quality via evaluation and observability, design APIs, and optimize latency, throughput, cost, reliability, and security for large-scale AI inference and retrieval workloads.

Lead architecture and implementation of new school safety products from concept through production. Design scalable, secure, resilient distributed systems and integration-heavy platforms involving APIs, identity systems, hardware, and external data sources. Drive technical strategy, mentor engineers, establish engineering standards, and collaborate with Product, Design, and engineering leaders to deliver reliable 0-to-1 products for schools.

Owns test automation and quality efforts for major product areas, including architecting automation frameworks, developing API, UI, and integration tests, and integrating testing into CI/CD pipelines. Leads test strategy, risk analysis, debugging, quality improvements, and release planning. Mentors junior SDETs, reviews test code, analyzes coverage, maintains quality metrics, and drives cross-functional adoption of testing best practices.

Provides cross-team technical leadership by architecting scalable systems, leading design reviews, resolving complex technical issues, shipping production code, mentoring engineers, reducing technical debt, and translating business priorities into technical roadmaps. The role requires hands-on full-stack software development, AI-paired delivery, strong communication, and influence without formal authority.

The Staff Software Engineer will architect and implement scalable data systems, collaborate with teams, mentor engineers, and ensure data integrity.

Architects, develops, and operates scalable microservices and policy platforms for real-time decisioning. Designs evolving database schemas, versioned APIs, and high-throughput services; integrates deterministic enterprise rules engines; and applies AI-assisted engineering tools. Builds automated tests, observability, reliability, governance, auditability, and compliance capabilities. Collaborates with platform, data, and machine learning teams, participates in architecture reviews, mentors engineers, and establishes technical standards.

Leads a small engineering pod building and operating Humana’s NBA orchestration platform. Designs durable Temporal workflows, Node.js/TypeScript services, Kafka event pipelines, transactional outbox processing, activation integrations, acknowledgment and reconciliation workflows, and distributed-systems reliability controls. Provides hands-on coding, architecture leadership, observability, operational support, cross-team coordination, mentoring, and delivery accountability across the member action lifecycle.