Top Software Engineer Jobs in Hartford, CT

Build and maintain large-scale batch and streaming data ingestion and ETL pipelines for global geospatial datasets. Implement, test, monitor, and optimize backend services on AWS; integrate data with APIs; mentor engineers; reduce technical debt; and participate in design, code reviews, and on-call support to ensure data quality and operational excellence.

The Senior Software Engineer will enhance Attentive's event streaming platform, architect high-throughput systems, improve tools for product teams, and tackle complex distributed challenges. Responsibilities include collaborating on messaging systems and modernizing the architecture.

As a Principal/Staff Software Engineer, you will design, implement, and lead embedded software for Optical DCI transport systems, ensuring performance and reliability.

Lead technical strategy and hands-on development of HubSpot's build, test, and deploy platform. Design scalable CI/CD, test orchestration, and AI-powered QA agents, drive architectural decisions, remove pipeline bottlenecks, and deliver cross-team initiatives that increase deployment velocity and reliability for thousands of engineers.

Build and maintain high-traffic full-stack web experiences using React and Next.js, design and integrate APIs, ensure observability and testing, debug production issues, lead architecture and AI experimentation, and mentor engineers to deliver scalable, reliable booking and purchasing systems.

Engineer end-to-end frontend and backend for an LLM-powered platform serving youth aging out of foster care. Design and optimize RAG systems, prompt engineering, embeddings, and agent interactions. Build accessible, Section 508-compliant interfaces and secure, federally compliant APIs. Ensure retrieval quality, safety, automated testing, CI/CD, and mentor teammates within a cross-functional, remote U.S.-based team.

The Senior Software Engineer will design, build, and maintain backend services and REST APIs while supporting data pipelines and governance practices within the Infrastructure team.

Develop and maintain calibration, automation, and tooling software for quantum processors. Design and implement front-end and back-end systems, APIs, and databases; troubleshoot performance issues; collaborate with scientists and engineers; and mentor junior engineers.

Design, build, and evolve customer-facing backend services and public APIs; own features end-to-end from design through rollout; create technical design documents; ensure services are observable, resilient, and usable across multiple products; collaborate closely with Product and Experience teams to prioritize and ship iterations.

Lead reliability, availability, and resiliency strategies for large-scale systems, drive operational excellence, and provide technical mentorship across engineering teams.

Design and build applications using Python, manage component design, optimize performance, and collaborate with clients on innovative products.

Design and implement integrations for a B2B platform, focusing on ERP systems and API architectures while providing technical leadership.

Build and harden product features and tooling for AWS GovCloud, ensuring security, auditability, and compliance. Implement GovCloud-specific authentication, logging, observability, and developer tooling; analyze and remediate security gaps; mentor engineers; support federal self-hosted customers and on-call escalations.

Design, develop, and maintain Hogan mainframe applications and batch processes. Troubleshoot production issues, tune performance, deploy APIs via zOS Connect, leverage zDIH for data integration, use DevOps pipelines, participate in code reviews, and mentor junior engineers.

The Staff Software Engineer will develop full stack solutions, contribute to architecture, mentor junior developers, and collaborate with teams on software projects.

Owner of full-stack features and platform reliability: build scalable web applications, optimize PostgreSQL performance, maintain asynchronous infrastructure (Celery), migrate frontend to server-side HTMX, ship revenue-driving features, ensure observability and SLO-driven reliability, collaborate cross-functionally, write testable code, and participate in architecture and code reviews.

Develop and implement features by building backend APIs and frontend code, lead projects, and collaborate with teams to solve user problems.

As a Senior Software Engineer, you will enhance our investment screening and fraud prevention platform, overseeing the software development lifecycle and collaborating with various teams for compliance-driven solutions.

Design and implement automated quality systems for disaster recovery and production environments, enhancing reliability through automation and intelligent diagnostics, while collaborating with QA and engineering teams.

The Staff SDET will design and implement automated test frameworks using TypeScript, collaborate with developers, and enhance testing processes within CI/CD pipelines.

Develop core backend components for a blockchain network, focusing on reliability and scalability, mainly using Rust. Ensure code quality through testing and debugging.

The Senior Software Engineer will enhance the core product by developing features and tools for Chainguard Images, collaborating with teams and ensuring product quality.

Design and implement backend services for an AI-driven automation platform, focusing on LLM orchestration, API development, and system reliability.

The role involves building production-grade software for AI-driven IT solutions, focusing on backend services, architecture, and direct customer engagement.

Provide technical and architectural leadership to the software development team, design software solutions, mentor team members, and drive projects to completion.