Top Senior Software Engineer Jobs in Hartford, CT

Design and implement mainframe-based software for claims processing using COBOL, CICS, DB2 and related tools. Architect solutions, write and test code, debug, perform code reviews, integrate systems, and produce technical documentation. Work in Agile teams, collaborate with stakeholders and offshore vendors, and support claim adjudication and payment processes.

As a Software Engineer, you'll design and develop microservices using a cloud-native tech stack, with a focus on financial services and secure systems.

Develop and maintain scalable, fault-tolerant components for YB Anywhere to automate deployment and management of YugabyteDB across cloud and on-prem environments. Collaborate with product, frontend, QA, and DevOps teams, perform code reviews, mentor engineers, and improve operational workflows and performance.

The Software Engineer IV will develop and maintain payer customer implementations, primarily focusing on back-end development, and mentor junior team members.

The Software Engineer will develop full-stack features using Java and Angular, build microservices, integrate APIs, and optimize system performance for the Air Force aircraft maintenance platform.

Responsible for designing and implementing authentication features in Go and TypeScript, enhancing Auth architecture, and collaborating with teams to improve user experience.

Lead and execute Growth engineering work to drive acquisition, activation, and retention. Build experimentation systems, collaborate cross-functionally, analyze user data to inform product decisions, mentor engineers, balance technical debt and feature development, and foster a culture of ownership and continuous improvement.

As a Senior Full-Stack Engineer, you will design and deploy solutions for state governments, ensuring high standards of security and privacy while leading cross-functional teams.

The Senior .NET Software Engineer will drive development of .NET software products, focusing on back-end engineering, code reviews, and collaborating with cross-functional teams.

The Senior Software Engineer will lead software engineering tasks, design and build applications, and provide technical mentorship, primarily leveraging AWS and Databricks.

Design, develop, test, deploy, maintain and improve full-stack software. Perform front-end, back-end and test automation development. Collaborate on Scrum/Agile teams, drive cloud-first solutions, ensure code quality, reuse, and end-to-end delivery across platforms.

Design and build prototypes, tools, and production-grade platform and infrastructure solutions. Research architectures, solve complex technical problems, integrate APIs, apply ML and AI-assisted tools, and ensure defensive application design and secure, scalable releases.

Hands-on technical leader designing and building scalable, cloud-native claims applications on AWS. Architect and implement Generative/Agentic AI (LLMs, RAG, agents), mentor engineers, drive DevOps and IaC (Terraform), and collaborate with cross-functional teams to deliver secure, maintainable enterprise software.

Design and develop foundational services and SDKs for Speechify's products, focusing on APIs, cloud functions, and optimizing performance.

The Software Engineer will develop customer-facing integrations, build APIs, enhance security, and improve system reliability while collaborating with multiple teams.

The Senior Web Software Engineer will build and maintain web components, own features from inception to production, implement designs, partner with teams, and impact product evolution.

The Senior Mobile Software Engineer will develop user-facing features for a cross-platform app, ensuring code quality and functionality throughout the entire lifecycle of features.

As a Senior Backend Software Engineer at Step, you'll own features from inception to production, improve Kotlin services, ensure code quality, and work collaboratively in a small team.

Develop crafted, intuitive interfaces, improve UI/UX quality, and collaborate with product teams. Engage with customers for feedback and mentor future engineers.

The role focuses on optimizing coding practices and collaboration within the engineering team, improving internal tooling, and communicating between teams and leadership.

Join SandboxAQ as a Scientific Software Engineer to develop AI-driven computational chemistry tools and maintain production-quality software, collaborating with experts to enhance drug discovery processes.

As a Senior Fullstack Software Engineer at Vanta, you will lead complex projects, set technical direction, design and develop new functionalities, and contribute to the engineering culture while mentoring other engineers.

Design and implement DataPath on silicon. Write efficient, modular code with thorough testing. Requires experience in packet forwarding and virtualized Linux environments.

Develop automated solutions for material handling, including software design, integration, testing, support, and project management, primarily in back-end development.

Lead design and delivery of metering and energy-efficiency software platforms. Architect systems, drive technical standards, mentor engineers, manage multi-developer projects, oversee integration/maintenance/BCDR, improve performance, and liaise with stakeholders and vendors.