Top Senior Software Engineer Jobs in Buffalo, NY

Develop and maintain scalable, secure browser extension features using JavaScript/React/TypeScript. Write tests (Jest/TDD), collaborate with product and design, optimize performance and security, refactor and fix bugs, and uphold code quality through reviews.

As a Senior Software Engineer at PerfectServe, you'll design, build, and maintain high-quality code for healthcare communication systems, mentoring junior engineers and collaborating across teams to improve patient care and clinical workflows.

Design and implement cross-platform features for KeeperChat (desktop, mobile, web). Build and maintain .NET/C# MAUI clients and React web UI, optimize performance and reliability, participate in code reviews, collaborate with product/design/backend teams, and mentor junior engineers while upholding security and code quality.

The Senior Software Engineer will develop features using TypeScript, React, and Node.js, enhance system performance, and collaborate closely with a team to deliver impactful solutions.

Architect and implement scalable React/TypeScript user interfaces for web and Electron desktop apps. Integrate native modules (C++/Objective-C), work with REST APIs under zero-knowledge principles, optimize performance and accessibility, lead code reviews, mentor engineers, and participate in CI/CD and automated testing to deliver secure, high-quality features.

The Senior Software Engineer will create user-facing interfaces for Roku applications, collaborate with teams, and ensure system architecture is robust and scalable.

The Senior Software Engineer will lead development, mentor engineers, and create data solutions using TypeScript, React, and Python. Responsibilities include designing applications, driving innovation, and ensuring high-quality user experiences.

Lead design and implementation of health data products, mentor engineers, own multiple projects, and develop scalable data solutions using modern technologies.

Lead design and implementation of products, mentor engineers, drive innovation, and build scalable data solutions using modern tech stack.

As a Senior/Staff Software Engineer, you will design and implement products, guide other engineers, and drive innovation in health data solutions.

Lead full stack engineering projects, collaborate with teams, troubleshoot production issues, mentor engineers, and ensure project alignment with business goals.

Technical leader designing scalable APIs and agent interfaces for autonomous advertising agents. Build high-throughput real-time systems, evaluate agent protocols, drive architecture, mentor engineers, and integrate external ad platforms.

Design and build cloud-native systems, develop scalable applications with modern technologies, implement Infrastructure as Code, and collaborate in agile environments.

The Senior Software Engineer will develop, maintain, and improve software for SkySlope, focusing on collaboration, innovation, and effective communication while managing project deliverables and providing mentorship to peers.

As a Senior Software Engineer, you'll develop Hudl's front-end platform, build infrastructure using AWS and Terraform, and serve as a consultant for front-end work.

As a Senior Software Engineer, you will lead the development of Dutchie's ecommerce platforms, focusing on front-end technologies to optimize user experiences for cannabis retailers and consumers.

The Senior Software Engineer will develop and integrate LLM-powered features, build AI capabilities for logistics operations, and collaborate with Data Scientists and ML Engineers to deliver AI solutions at scale.

The Senior Software Engineer II is responsible for designing and delivering scalable solutions, leading technical decisions, mentoring team members, and advocating for quality practices.

The Senior Software Engineer for Data Acquisition will build operational data pipelines and services to collect and manage health data efficiently while working collaboratively with the engineering team.

Design, develop, and optimize Sunrun's marketing technology systems for customer communications, focusing on automation, data integration, and performance analysis.

The Senior Software Development Engineer in Test II will develop and maintain automated test suites, manage test executions, collaborate with developers, and enhance testing infrastructure for cloud services at Akamai.

The Senior Software Engineer II will develop cloud services and web applications, enhance Zero Trust solutions, and tackle complex security challenges, ensuring compliance with FedRAMP standards.

In this role, you will lead the development of automation tools, architect systems, mentor engineers, and enhance developer experience and supply chain security.

Lead QA efforts across Agile sprints: create test strategies and plans, design and maintain automated test frameworks, run regression, integration, browser/mobile, performance, and security tests, integrate tests into CI/CD, track defects, report quality metrics, and mentor team members to improve testing practices.

The Lead Software Engineer will develop IVR solutions and omnichannel APIs, collaborate with teams, support cloud infrastructure, and resolve incidents.