Top Senior Software Engineer Jobs in Buffalo, NY

Design, develop, and maintain scalable web and desktop applications (Electron) and Go microservices for torque monitoring, logging, and QA. Integrate industrial protocols (Modbus TCP, Siemens S7, MQTT), implement REST/WebSocket APIs, deploy containerized Linux services with Docker, and collaborate with cross-functional engineering teams.

Join cross-functional XP teams to deploy and adapt the Imogen platform into client public cloud environments. Pair-program, collaborate with client infosec and infrastructure teams, lead technical discovery, apply XP practices (TDD, CI/CD, pair programming), onboard and mentor engineers, build deployment tooling, participate in on-call rotations, and travel periodically for client engagements.

Build and enhance full‑stack cloud-native applications using Java/Spring and JavaScript/React. Own the full SDLC, apply TDD and CI/CD, troubleshoot production issues, mentor junior engineers, and drive technical direction as experience increases from contributor to Lead.

Design and implement Wi‑Fi 6 (802.11ax) and 802.11s mesh networking software for enterprise access points. Develop HMAC components, optimize throughput/latency/airtime, integrate on NXP-based Embedded Linux platforms, maintain hostapd/wpa_supplicant/mac80211, debug with packet captures, and collaborate with RF/firmware/QA teams for product releases.

Lead design and implementation of scalable backend services and member-facing APIs using Python/Django, PostgreSQL, BigQuery/dbt and GCP. Own infrastructure as code (Terraform), container orchestration (Docker, Kubernetes), async/event-driven systems, observability, and performance tuning. Mentor engineers, collaborate with Product and Data teams, and ensure secure, low-latency, AI-driven member experiences.

Design and develop backend services and APIs for identity resolution, optimize event-driven systems, and enhance system reliability. Mentor engineers and influence architectural decisions.

As a Lead Software Engineer, you'll design and develop GenAI platforms, integrate LLMs, mentor engineers, and solve technical challenges for scalable solutions.

As a Staff Software Engineer, you'll design and operate traffic infrastructure, lead multi-team projects, ensure service reliability, and mentor engineers while utilizing AI tools for development efficiency.

The Staff Software Engineer will lead technical projects for the Patient Matching team, focusing on scalable systems and API design. Responsibilities include system architecture, mentoring engineers, and collaborating with various stakeholders to enhance patient experiences in mental healthcare.

Lead design and evolution of data interfaces, mentor team, support integrations for live clients, and enhance data tools for scalability and efficiency.

Develop full-stack features for both parent-facing and physician platforms using Django and Hotwire. Collaborate with product managers and improve health outcomes for children. Take ownership of projects and implement high-quality software.

The Full Stack Software Engineer will design, maintain scalable solutions, and collaborate with teams to enhance software quality, focusing on Ruby on Rails and AI integration.

The Full Stack Software Engineer will design and maintain scalable applications, focusing on Ruby on Rails, and collaborate with teams to enhance software quality and performance. Key responsibilities include troubleshooting, optimizing systems, and integrating AI solutions.

The Senior Full Stack Engineer will design and operate identity systems, implement AI-driven efficiencies, mentor engineers, and ensure high-quality code in an AI-first environment.

Develop, deploy, and maintain the UDS Registry and related tools (Pepr, Lula). Lead architecture and implementation, integrate with defense systems, participate in on-call rotation, contribute to open source, produce documentation, mentor engineers, and influence product direction with user-focused design.

As a Senior Software Engineer, you'll collaborate to build and maintain automation capabilities, contribute to AI solutions, and ensure scalability, improving the user experience with software solutions.

Remote backend engineer role building web services and data pipelines using Scala and Java. Requires Akka/Pekko (streams, actors, clustering, persistence, HTTP), functional programming with Cats/Cats Effect, streaming/distributed system design, AWS services (Kinesis, DynamoDB, SQS/SNS, API Gateway, IAM, KMS), SQL optimization, CI/CD, and hands-on high-availability architecture experience.

Design, develop, and maintain advanced software systems. Collaborate with product, design, and engineering teams. Write clean, scalable code, perform code reviews, debug complex issues, and stay current with technologies.

Join an early-stage platform team to scale and mature a mortgage origination platform. Work across the stack to improve distributed systems, performance, observability, and infrastructure tooling, and help define engineering standards and frameworks for growth.

Join Goodie AI's AI Lab to design and build scalable front-end solutions and contribute to backend infrastructure and DevOps. Lead React development, collaborate with designers and data scientists, integrate APIs, ensure performance, and participate across the full application lifecycle to deliver high-quality AI platform features.

Responsible for implementing and managing infrastructure as code (Terracore/Terraform), automating CI/CD with Jenkins, managing AWS services and Amazon EKS/Kubernetes, scripting in Bash/Python, implementing monitoring and security best practices, supporting production via on-call rotations, and collaborating with development and QA teams.

Own and scale AWS infrastructure using Terraform; design CI/CD and GitOps pipelines on Kubernetes (Helm, ArgoCD); manage service mesh (Istio), observability, security, capacity planning, cost optimization, and incident response; mentor engineers and document runbooks.

Build and maintain scalable full‑stack applications for hotel customers, write clean maintainable code, collaborate with product and engineering peers, mentor engineers, participate in code reviews, and drive product improvements with minimal direction.

Build and maintain the AI-powered learning platform across a TypeScript/React frontend and Python/FastAPI backend. Integrate LLMs for classification, extraction, personalization, and conversation practice. Design scalable APIs, develop real-time interactive features, apply AI-assisted development workflows, write well-tested code, and collaborate with product, design, and education teams to optimize learning experiences and A/B tests.

Design and develop software solutions enhancing user experience for Governance features, contribute to open-source software, communicate technical designs, and support team quality through reviews.