Top Senior Software Engineer Jobs in Hartford, CT

As a Senior Fullstack Developer, you will build and maintain moderation and user-safety applications for Bluesky's Trust & Safety team, collaborating with product teams and improving tools based on user feedback.

The Senior Software Engineer will lead design for large cloud platform projects, troubleshoot system issues, and mentor engineers, focusing on scalability and reliability.

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

As a Senior Software Engineer, you will design and implement AI technologies to address complex logistics challenges and mentor team members.

Design, implement, and optimize core frontend, backend, and model-integration components. Drive engineering direction, ship and scale LLM-powered applications, build robust APIs and streaming systems, establish CI/CD and instrumentation, and deliver production-grade agentic workflows with measurable reliability and performance.

Lead the creation of an AI-powered software generation platform, partner with AI and infrastructure teams, and define success metrics to enhance developer experience.

Lead design and delivery of self-service platform capabilities: provisioning, deployment, observability, and multi-region networking. Drive RFCs and cross-team alignment, build APIs (primarily in Go), implement Terraform/GitOps flows, improve EKS reliability and Grafana-based SLOs, and reduce operational toil via safe, auditable automation. Own on-call rotation and platform adoption outcomes.

The Senior Software Engineer will build and operate systems for Vanta's FedRAMP environments, focusing on reliability, compliance, and incident response, while collaborating with product teams and improving operational readiness.

The role involves designing, developing, and maintaining iOS applications, driving technical architecture, and promoting knowledge sharing within the team.

Lead technical design and implementation of secure, scalable enterprise applications. Coach and mentor engineers, enforce code quality, drive architecture, authentication/authorization, CI/CD, DevOps, observability, and SDLC governance to meet banking risk and regulatory standards.

The Senior Software Engineer will develop backend systems, mentor engineers, and collaborate with cross-functional teams while contributing to product features and roadmaps.

As a Senior Software Engineer at Upwave, you will build scalable backend systems, develop APIs, and engineer data pipelines while collaborating with product and data science teams.

Provide technical leadership across the simulation platform: define architecture, drive feature delivery, debug complex multi-module issues, conduct code reviews, collaborate on QA/CI/CD, and mentor engineers to modernize and maintain the legacy Windows desktop codebase.

Senior software engineer responsible for full product lifecycle, designing and delivering technology solutions, improving systems and processes, maintaining legacy code, scripting to streamline onboarding, and supporting enterprise integrations (Maximo, SAP Ariba, ETL). Works with architecture, security, vendors, and development teams; performs operational support and emergency restoration as needed.

Lead architecture and hands-on implementation of an offline-first edge computing platform in Go. Design distributed messaging and cloud-to-edge synchronization, optimize services for resource-constrained in-store hardware, maintain Kubernetes/Helm deployments, mentor engineers, and collaborate with Product and DevOps for phased rollouts and migrations.

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

We are seeking a Senior Frontend Software Engineer to build advanced web applications using JavaScript and ReactJS, collaborating with a team to enhance user experiences.

The Senior Backend Software Engineer will build intricate backend systems, develop APIs, ensure high availability, and improve application scalability and performance.

Lead and manage software engineering teams, architect scalable systems, and innovate solutions while collaborating with stakeholders across various technology stacks.

Develop and expand software products and platforms across backend, frontend, cloud, AI, and machine learning systems. Build efficient, reliable, and testable code; collaborate with business partners to launch features; influence product and engineering decisions; mentor team members; and help shape team culture and product vision in an agile environment.

As a Staff Full Stack Engineer, you will lead complex projects for the lending platform, mentor engineers, and drive system optimization while collaborating with cross-functional teams.

As a Senior Software Engineer, you'll build high-performing, scalable applications for Joyride's auction platform, working on new features and existing code.

Build scalable, secure, high-performance applications for clients, clinicians, and internal users. Collaborate across Product and Clinical Operations, translate workflows into impactful features, improve architecture and system stability, and contribute to design, testing, code reviews, and technical planning. Lead cross-functional projects, mentor junior developers, and help shape innovative technology supporting mental healthcare.

Design, build, and maintain payment integrations and a reconciliation data platform for high-volume restaurant transactions. Implement terminal-to-cloud flows, ingestion pipelines, matching engines, reporting UIs, and payment analytics. Provide technical leadership, documentation, and mentor teammates to ensure reliable settlement and reconciliation.

Design and build internal platforms, tooling, and AI-powered workflows to reduce developer friction, improve velocity, quality, and reliability. Partner with product, infra, and security to create reusable paved paths, measure impact with engineering metrics, and help define the Developer Experience practice.