Top Senior Software Engineer Jobs in Hartford, CT

Volunteer senior engineer to develop a cross-platform medical/wellness app (web, iOS, Android). Own full SDLC: design, coding, testing, data models, pipelines, deployments, and collaborate in Agile processes. Attend weekly standups and commit at least 4 hours weekly.

Design and build AI-augmented test tooling and automated test infrastructure across mobile, web, and backend. Integrate testing into engineers' workflows (IDE, CI, monitoring, chatops), define quality gates, instrument AI usage and costs, ensure secure handling of PHI, and produce reusable libraries, documentation, and training to help teams adopt automated quality workflows.

Build and maintain an in-house insurance rating engine using Python. Collaborate with stakeholders to gather requirements, design features, implement back-end and front-end components, analyze customer data for rating accuracy, debug data issues, and apply P&C insurance concepts to technical solutions.

Lead design, development, and verification of avionics tools; provide technical leadership, mentor teams, drive RCCA and Lean methods, collaborate cross-functionally, and develop/maintain software (primarily C# and Python) for commercial and military programs.

Develop, design, and maintain production software for autonomous mission management of a satellite constellation. Contribute to architecture, implement scalable algorithms in Python and Go, support production operations, on-call rotations, launches, and cross-team integration for automated constellation operations.

Design, build, and manage data pipelines, integrations, ML and rules-based classification, and applications. Collaborate with data scientists and cross-functional Scrum teams, drive technical strategy, innovate practices, and mentor junior engineers.

Design and maintain healthcare software integrations, ensuring data flow between Epic EHR and systems while mentoring developers and ensuring quality standards.

Frontend-focused senior software engineer to lead and implement Search features in a high-traffic React/TypeScript app. Collaborate with backend, product, and design to build end-to-end features, optimize UX and performance, work with mapping/data visualizations, and participate in architecture, on-call rotations, and mentoring.

Design, develop, and operate scalable, low-latency backend Guidance services for navigation. Solve complex guidance scenarios, build customizable solutions for OEMs and niche customers, and create tooling and AWS-based infrastructure to support mapping and navigation features.

Lead design, development, and maintenance of SmithRx frontend features using JavaScript and React while ensuring high-quality code and scalability. Collaborate with product teams and mentor junior engineers.

Lead design, architecture, and hands-on implementation of scalable healthcare SaaS systems. Drive interoperability (HL7, FHIR, EDI), mentor engineers, liaise with stakeholders, manage technical risk, and ensure quality, performance, security, and innovation.

Design, build, and optimize scalable Java-based microservices and RESTful APIs. Ensure performance, uptime, and engineering standards through design and code reviews, testing, and collaboration with product and support teams. Contribute to domain-driven service design and API consistency.

Lead design, development, and maintenance of scalable backend services for Payouts. Drive architecture, ensure performance and reliability, mentor engineers, enforce engineering best practices, and collaborate with product and support teams to deliver customer-facing REST APIs.

Design, build, and improve Elasticsearch distributed-systems components for scalable, concurrent, and consistent indexing. Maintain cluster coordination for performance and resilience, push system scale limits, investigate performance and concurrency issues, support operations/support engineers, and lead projects involving multiple engineers from design through delivery.

Design, build, and maintain automation frameworks, performance tests, and internal engineering productivity tools. Stabilize CI/CD (Jenkins, GitHub Actions, ArgoCD), collaborate with product and data science, and drive agentic AI automation initiatives to increase test coverage and delivery quality.

As a Senior Software Engineer, design, build, and maintain backend functionality for scalable multi-tenant services focused on data storage and retrieval. Lead technical initiatives, collaborate across teams, and ensure system reliability and performance.

Design high-performance C++ libraries for automated PCB design challenges, mentoring peers and shaping technical direction while collaborating with experts in various fields.

The Senior Software Engineer will focus on backend development, designing and maintaining APIs and services, collaborating on features, and enhancing integrations at Motion.

Design and build AI-powered backend services, optimizing performance and scalability while collaborating with cross-functional teams to integrate generative AI models.

Design and optimize storage systems at scale, implementing caching strategies and ensuring data availability and performance for a large user base.

As a Staff Software Engineer, you will develop backend architecture, collaborate with stakeholders, mentor juniors, and ensure software quality while leveraging various technologies and AWS platforms.

The Senior Platform Engineer will enhance internal tooling, optimize CI/CD pipelines, and ensure AWS infrastructure reliability and security while facilitating fast software development and deployment.

The Senior Software Engineer will enhance AI system reliability, performance, and scalability, focusing on distributed services and collaborating with ML researchers.

As a Staff Software Engineer, you will significantly enhance platform development and experimentation, focusing on AI integration and efficient software workflows. You'll manage end-to-end processes, develop core infrastructure, and employ AI coding agents to refine engineering practices, ultimately improving velocity and output quality.

The Senior Software Engineer II will lead projects, define testing strategies, mentor engineers, and improve system reliability at Zippy.