Top Senior Software Engineer Jobs in Buffalo, NY

Design, build, and ship full‑stack applications end-to-end within small pods. Own the full SDLC, deploy and operate cloud applications, contribute to architecture, and use AI-assisted tools to accelerate development, testing, and code quality while maintaining reliability.

Build and ship lightweight internal full-stack tools end-to-end within small pods. Rapidly prototype, deploy, operate, and iterate tools using cloud platforms and AI-assisted development to improve team productivity and automate workflows.

Design, build, and operate shared backend services and APIs. Own full SDLC, define service boundaries and data models, ensure scalability and reuse, apply DDD and systems thinking, and use AI-assisted tools to accelerate development while maintaining maintainability.

Design, build, and maintain automation and testing infrastructure for the North platform: CI/CD pipelines, GitHub workflows, containerized test environments (Docker/Kubernetes), Helm and ArgoCD deployments, infrastructure-as-code, benchmarking, parallel test execution, and cross-team standards to improve test coverage, reliability, and deployment confidence.

As a Senior Software Engineer, you'll design, develop, and maintain production-ready API solutions, collaborating with cross-functional teams while utilizing cloud technologies and agile methodologies.

As a Staff Software Engineer, you'll design and develop systems to integrate AI in healthcare payment processes, mentor engineers, and optimize workflows.

The Senior Software Engineer will design and build scalable data solutions, manage backend systems, and enhance performance leveraging Golang and Python. Responsibilities include optimizing ETL processes and collaborating with teams to meet evolving customer needs.

The Staff Software Engineer will design and build scalable backend systems, lead projects, and contribute to enterprise software solutions, focusing on application architecture, API development, and ML techniques.

The Senior Software Engineer will modernize healthcare technology systems using C#, .NET, SQL Server, and cloud services, leveraging AI tools while ensuring software quality and development efficiency.

The role involves designing and maintaining scalable software, leading technical projects, mentoring engineers, and influencing technology direction at UniUni.

The Senior Software Engineer will develop and maintain Docker Desktop's lifecycle components, focusing on installation, updates, and performance across macOS and Windows environments, while debugging complex OS-level issues and collaborating with teams.

The Senior Front-End Engineer will solve complex architecture problems, develop features using Vue, optimize performance, and collaborate with cross-functional teams.

Develop and maintain back-end systems and APIs, collaborating with teams to build scalable features and improve system architecture.

The Staff Engineer will lead the Systems team, design scalable cloud infrastructure, optimize data pipelines, and ensure platform reliability and security.

Design and evolve systems for Motion's infrastructure, focusing on reliable and secure operations across APIs, Linux systems, and cloud environments with a focus on hands-on coding and engineering judgment.

As a Senior Backend Engineer, you will enhance Postscript's Fondue product by architecting scalable systems, driving decoupling, and implementing AI-first development practices while collaborating across teams.

The Senior Software Engineer will design and maintain backend systems, develop APIs, solve performance issues, and mentor junior engineers.

The Senior Software Engineer will design and build fullstack features using Go, React, and Ember, ensuring optimal customer experiences and system scalability while mentoring peers and driving projects.

The Principal Software Engineer will lead the Databricks platform on AWS, managing administration, design, security, and user enablement while mentoring a team.

Build and maintain MyHealthTeam social networks as a full-stack engineer. Work with Product in an agile, test-driven environment, manage production AWS services, and contribute across front-end and back-end systems.

The Senior Software Engineer will design high-performance systems, build features using Python and Django, mentor junior talent, and ensure system reliability through automated testing.

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.

Design and implement scalable frontend solutions using JavaScript/TypeScript and React. Drive architecture discussions, ship features with minimal guidance, maintain code quality and styling standards, collaborate across agile teams, ensure performance and scalability, and manage end-to-end feature lifecycles in a fast-moving environment.

Join an early engineering hire at a growing SaaS platform for online communities. Scope and deliver new features, write modular TypeScript/React code, enable AI coding agents, monitor production, and troubleshoot issues while influencing product direction and improving platform scalability and developer experience.

Design, develop, and maintain backend services for the Leap quantum-classical hybrid cloud platform. Collaborate with product owners and architects across the SDLC to deliver features, troubleshoot and tune production systems, write clean maintainable code, participate in code reviews and on-call rotation, and mentor junior engineers to improve engineering practices and platform scalability.