Top Senior Software Engineer Jobs in Buffalo, NY

Lead architecture and technical direction for Payments platform, building scalable, fault-tolerant distributed systems, defining roadmaps, ownership of production reliability, cross-functional partnership, and mentoring engineers to improve platform quality and scalability.

The role involves owning the architecture and technical direction of Payment Rails infrastructure, designing high-reliability systems for global payment processing, and leading cross-functional collaborations to create efficient, compliant solutions. Responsibilities also include mentoring team members and enhancing operational excellence through AI-driven improvements.

As a Software Engineer at OnePay, you will develop and implement features, build scalable products, and work closely with teams to enhance customer experiences.

Join Aleph's engineering team to develop the Core Product, focusing on user-facing features for financial data insights. Collaborate with leadership, design robust software components, and contribute to system architecture in a fast-paced, remote environment.

As a Backend Software Engineer, you'll design, develop, and optimize scalable backend platforms and services while collaborating with cross-functional teams.

Develop and improve real-time drone tele-operations features, cloud-based products, and quickly prototype new front-end experiences while transitioning to a new tech stack.

Develop and deploy life-saving technologies as a fullstack engineer, focusing on web applications for public safety, collaborating with various engineering disciplines and leveraging customer feedback.

As a Senior Software Engineer, you will build backend APIs for authentication and authorization, partner with leadership, and mentor other engineers while improving production quality.

As a Senior Software Engineer, you'll develop AI-powered tools, manage complex databases, optimize application performance, and lead technical decisions.

The Senior Backend Software Engineer will design and maintain backend systems, optimize performance, ensure security compliance, and mentor junior engineers in a collaborative environment.

The Software Engineer will scale and optimize the platform's infrastructure, manage data layers, and enhance system operations to support growing LLM requests.

The Senior iOS Engineer will lead product decisions, ship code for the iOS app, and enhance the app's architecture, ensuring a user-centric experience.

Develop and optimize distributed systems for syncing customer data, focus on scalability, reliability, and performance for global clients.

The Senior iOS Engineer will drive key engineering decisions, enhance the iOS app, and engage in product strategy discussions. Responsibilities include shipping production code and maintaining app architecture.

The Senior Software Engineer for the Treasury team will develop backend services for fund management, ensuring system reliability and leading projects in a fast-paced environment.

As a Senior Full Stack Software Engineer, you'll design and develop end-to-end web applications, handle data architecture, ensure performance, and collaborate across teams to deliver effective technical solutions.

The role involves designing and building scalable web applications, focusing on frontend and backend development, database management, and performance optimization.

Lead platform improvements and migrate legacy integrations to a standardized, observable integrations platform. Build reusable frameworks, improve data traceability, deliver visibility tools, strengthen contract safety and resilience, and partner cross-functionally to enable safe incremental rollouts and reliable vendor API integrations.

Build and maintain end-to-end web applications powering sales and operations. Design tools for quoting, scheduling, and fulfillment, integrate AI into products, collaborate on UX, ship high-impact features, and contribute to architecture, deployment, and engineering culture.

Senior .NET Software Engineer responsible for end-to-end software development using Microsoft technologies. Requires extensive experience in SDLC, design principles, technical documentation, web application development with .NET, Agile/SCRUM, Entity Framework, database design, and version control. Familiarity with project tools JIRA, TEMPO, Bitbucket, and Confluence preferred.

Senior pre-sales technical engineer responsible for designing and presenting complex IBM software solutions to partners and clients, gathering requirements, mentoring junior staff, and driving partner enablement KPIs such as design volume, customer engagements, accuracy, timeliness, and satisfaction.

Lead end-to-end full-stack development across React frontends and compiled backends, influence architecture and data modeling, integrate third-party dealership APIs, use AI-assisted coding tools daily, set engineering standards, ship production features to live dealership users, and mentor junior engineers.

The Software Engineer will build features across the stack, design AI/LLM-driven workflows, translate requirements, and collaborate closely with the founding team and customers.

The Senior Full-Stack Software Engineer will design, build, and scale backend services and APIs for financial transactions while collaborating with frontend engineers and contributing to technical design.

Design and build systems for managing bare-metal infrastructure, focusing on automation, hardware provisioning, and software integration with Linux systems.