Top Senior Software Engineer Jobs in Hartford, CT

The Software Engineer will develop and support the MEMX Trading system, focusing on high throughput event-sourcing applications and resolving production issues.

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, develop, test, and support scalable software features; participate in code reviews, estimations, and deployments (including evenings/weekends); mentor engineers; troubleshoot production issues; collaborate with architects, QA, BAs, and product teams; improve performance, reduce technical debt, and follow secure development practices.

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.

Design and build the control plane for Postgres clusters, ensure data protection, automate database operations, and collaborate with customers to enhance the platform.

Hands-on principal software engineer building and maintaining data pipelines, multi-language SDKs, and integrations; ensure schema compliance, troubleshoot transport and format issues, collaborate on secure DevSecOps CI/CD deployments, mentor engineers, and deliver in Agile/Scrum.

Design, build, test, and deploy scalable production platform infrastructure. Own CI/CD, observability, and reliability practices; collaborate cross-functionally, participate in incident management, create documentation, and drive platform engineering standards and automation.

Lead the design and development of full-stack solutions for prescription decision-making, maintain backend systems, mentor engineers, and ensure system scalability.

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.

Design and own AI-agent-driven test workflows and the automated verification framework. Build test context, select models and tooling, validate AI-generated code and tests, operate test automation across UI/API/mobile/data, ensure security and compliance, mentor teams, and continuously improve agent orchestration and observability.

The role involves building decision science libraries and tools for mineral exploration, collaborating with teams to improve decision-making processes.

Develop, test, and improve the OT Security Platform as part of the Microsegmentation Product Team, ensuring high-quality software and architecture.

Lead the development of high-performance software systems, mentor junior engineers, and contribute to technology strategy while ensuring scalable and maintainable solutions.

The Senior Software Engineer will design, build, and maintain CI/CD pipelines, improve automation workflows, and mentor junior engineers in a security-focused development environment.

The role involves designing and optimizing LiveKit's media pipeline, building distributed systems for media ingestion and export, and shaping technical direction across products, ensuring high quality and operational excellence.

Design and maintain backend services for AuthZed Cloud's control plane, focusing on Kubernetes systems and secure authentication. Collaborate with teams for system reliability and incident resolution.

As a Senior Backend Engineer, you will design scalable backend systems, build APIs, collaborate across teams, and contribute to engineering best practices to enhance product performance.

The Software Development Engineer II will develop navigation solutions, balance rapid development with reliability, and optimize performance while promoting operational excellence at Mapbox.

The Lead Software Engineer will lead the design and development of enterprise solutions using Microsoft Dynamics 365 and Power Platform, oversee engineering practices, mentor team members, and collaborate with stakeholders for effective delivery and alignment.

The Senior Backend Engineer will design and build backend systems for a multi-cloud platform, ensuring performance, scalability, and high quality while collaborating with various teams and stakeholders.

The role involves designing and improving media pipelines for LiveKit's voice technologies, handling media ingestion, exporting sessions, and optimizing performance across diverse formats and codecs.

The Staff Software Engineer will lead technical initiatives, drive quality code, mentor engineers, and work on scalable systems in a high-impact team environment.

The Senior Software Engineer will work on full-stack deliverables, manage support tickets, and enhance the tech stack for improved efficiency, focusing on analytics and automation in OOH advertising.

The Senior Software Platform Engineer will design and maintain cloud-based MLOps pipelines, collaborate with cross-functional teams, and support AI workloads to enhance production capabilities.