Top Senior Software Engineer Jobs in Hartford, CT

Design and build backend services for ClickHouse Cloud, extend functionalities for Postgres, and contribute to automation and operational excellence, ensuring performance and reliability.

The role involves designing and maintaining a scalable cloud infrastructure, working with cloud technologies, and improving system performance and security.

The Sr Software Engineer leads technical integration solutions for consumer lending at MeridianLink, overseeing the architecture, design, and development of secure APIs and mentoring team members.

The Senior Software Engineer will diagnose, develop, and deploy solutions for deployed autonomous software, focusing on technical discovery, rapid software fixes, tooling improvements, and cross-team collaboration.

The Senior Software Engineer will develop and enhance features for the Keeper Browser Extension, ensuring quality, security, and performance, while collaborating with cross-functional teams and following coding best practices.

The Senior Software Engineer will build full-stack solutions, design scalable features, mentor team members, and manage the development lifecycle.

Lead design and development of highly available payment processing, subscription billing, settlement, refunds, and reporting systems. Integrate with external payment processors and APMs, ensure automated build/test/deploy pipelines, debug production issues, optimize performance, decompose features for incremental releases, conduct design/code reviews, mentor junior engineers, and incorporate regulatory requirements (PCI‑DSS, PSD2/SCA, 3DS2).

Lead design, implementation, and operation of Signifyd's GCP/Kubernetes cloud platform. Architect scalable, secure infrastructure, embed AI-driven automation, own SLOs and incident response, improve developer experience via CI/CD/GitOps tooling, mentor engineers, manage cloud capacity/FinOps, and build observability and security into the platform.

Lead frontend architecture and technical direction for shared UI systems and design system. Build, maintain, and document reusable component libraries; collaborate with UX, product, and engineering. Champion accessibility, testing, performance, and design-to-code workflows. Mentor engineers, review contributions, and deliver major UI initiatives end-to-end while balancing technical debt and product needs.

The role involves developing APIs, building internal tools, and collaborating with teams to enhance system performance while solving engineering challenges.

The role involves end-to-end ownership of features across the MERN stack, optimizing performance, collaborating on design, and participating in discussions like roadmapping and code reviews.

As a Senior Software Engineer, you'll build AI-powered features, integrate LLMs, design scalable systems, mentor teammates, and collaborate to enhance user experiences.

We are seeking a product-minded backend engineer to work on our Customer Studio product, focusing on data performance, analytics, audience syncing, and generative AI. The role requires strong architecture, scalability considerations, and product engagement.

The role involves developing tools for enterprises to manage Hightouch deployments, focusing on access control, change management, and data warehouse performance.

Serve as technical lead for software development, testing, deployment support, release management, requirements analysis, defect resolution, and technical oversight for MIS. Lead development, testing, UAT, Section 508 compliance, performance/capacity testing, documentation, and modernization/migration efforts.

Lead design and delivery of scalable, accessible web applications using modern .NET and Angular/React. Modernize legacy systems, apply DDD and DevOps practices in AWS, mentor engineers, own solution lifecycle, and collaborate with product stakeholders to reduce technical risk and improve quality.

Design, implement, and maintain high-performance backend services in Go deployed on GCP and AWS. Build banking/payment APIs and compliance-focused fraud detection products. Collaborate cross-functional teams, own full product lifecycle, produce technical documentation, and implement end-to-end test automation using Cypress, JUnit, or Mockito to ensure reliability and quality.

Lead design and delivery of customer-facing data product applications, building full-stack experiences (frontend, backend, APIs) using TypeScript, React, Node.js, and Python. Partner with Product and data teams to convert analytics and prototypes into production-grade workflows, establish software engineering best practices, mentor engineers, and prioritize customer value through testing, observability, and operational ownership.

The Staff Software Engineer will design and build user-facing features for clinical AI applications, ensuring quality and security while collaborating cross-functionally.

Lead AI adoption initiatives and cultural transformation in engineering at Yahoo Mail, enhancing developer productivity through AI tools and practices.

Lead design and architecture of cloud-first, full-stack enterprise software. Provide technical leadership, mentor engineers, promote automated testing and CI, improve scalability, troubleshoot issues, and deliver complex projects on time.

As a Lead Fullstack Engineer, you will develop mobile applications, provide technical leadership, implement scalable code, and mentor teammates while focusing on best practices and system design.

Design, build, and maintain performant web applications in an agile, TDD-driven environment. Lead technical decisions, collaborate with product and design, deliver high-quality code, participate in on-call rotation, and ensure system reliability and availability.

Contribute expert software engineering to train AI systems: fix bugs, implement features, refactor code, optimize performance, evaluate architectures, and collaborate cross-functionally to improve model training workflows.

Lead architecture and technical strategy across an infrastructure platform ecosystem. Drive hands-on architectural improvements to graph engine and backend services, reduce technical debt, establish standards, champion AI-first engineering practices, run architecture/code reviews and mentorship, and collaborate with product and leadership to ensure scalable, extensible systems.