Software Engineer Jobs in Connecticut, United States

Pratt & Whitney Controls & Diagnostic Systems (CDS) is a dynamic engineering organization focused on the development and certification of military and commercial gas turbine engine control and diagnostic systems. The Senior Engineer will develop software requirements, designs, and verification within an Agile framework, conduct prototype testing, and may serve as Agile Scrum Master.

Pratt & Whitney Controls & Diagnostic Systems (CDS) builds advanced engine control and diagnostic software for military and commercial gas turbine engines. As a Senior Engineer, you will develop and verify software requirements, design specifications, and test plans within an Agile framework, ensuring traceability and compliance with DO178B.

Controls & Diagnostic Systems (CDS) at RTX develops cyber‑resilient control and diagnostic software for military and commercial jet engines. The Principal Engineer leads Agile software requirements, design, verification and test development, conducts prototype testing, reviews, and Agile ceremonies, and may serve as Scrum Master or Product Owner.

Lead Software Engineer in FactSet's Services Engineering team, responsible for designing, building, and evolving scalable software solutions and tooling to improve operational efficiency across the Services platform. Leads technical implementation of automation initiatives, contributes hands‑on to complex codebases, collaborates with product, operations, and engineering teams, mentors peers, and drives engineering excellence.

Principal Software Engineer – Quality Engineering at The Hartford leads the design, implementation, and evolution of quality engineering practices across a hybrid technology landscape. The role blends hands‑on technical delivery with strategic leadership, defining quality strategy, standards, and operating models.

DPaAS team within Finance IT builds modern data platforms in AWS and Databricks to deliver reliable, production-ready data solutions. The role designs scalable pipelines, monitors performance, troubleshoots incidents, partners with stakeholders, and automates processes in a hybrid environment across Austin, Denver, St. Louis, Bloomington, Morris Plains, Plano, and Bloomfield, CT.

DRW seeks a Software Engineer for its Cumberland/FICCO Tools Engineering team in Greenwich. The role focuses on building and maintaining high-performance trading tools for FICC and options desks, taking ownership from prototype to production.

Engineering Development Program (EDP) at Travelers builds future technology leaders through a one‑year rotational experience in Software, Data, Cybersecurity, or Infrastructure & Cloud. Participants design, develop, test, and support software solutions while engaging in classroom‑style accelerators and mentorship.

Senior Software Engineer focused on building a high‑performance search platform. Leverages expertise in OpenSearch, Elasticsearch, Solr, and vector search to deliver advanced search capabilities.

Travelers seeks a Sr Software Engineer to lead Engineering Enablement, driving AI-driven engineering practices across Claim Technology. The role blends technical leadership, product ownership, and team development, shaping strategy, managing the roadmap, and influencing organization-wide engineering culture.

Lead production support for enterprise RPA and automation platforms, owning incident triage, root‑cause analysis, and remediation. Drive reliability, observability, and proactive improvements.

Electric Boat seeks a Systems Engineer (Software) to support design, testing, and integration of the COLUMBIA Class Main Propulsion Control System (MPC). The role oversees MPC supplier design/redesign, verifies control system compliance, troubleshoots test data, and implements software fixes.

Principal Software Engineer - IE06GE We’re determined to make a difference and are proud to be an insurance company that goes well beyond coverages and policies. Working here means having every opportunity to achieve your goals – and to help others accomplish theirs, too.

Travelers Personal Insurance team drives digital transformation through Salesforce solutions. The Software Engineer I will design, develop, and integrate Salesforce applications to enhance customer experience and streamline business processes, collaborating with cross‑functional teams.

CVS Health seeks a hands‑on Software Engineer to build cloud‑native microservices, design mission‑critical systems, and drive engineering excellence in a dynamic digital health environment.

Software Engineering team at Sirsi Corporation builds and maintains enterprise software solutions. The role designs, develops, and tests Java applications using Spring Boot, REST APIs, and databases while collaborating with architects and product managers.

Travelers seeks a Software Engineer I to support its evolving technology landscape. The role focuses on intermediate end‑to‑end engineering tasks—designing, developing, configuring, testing, debugging, and documenting solutions—while collaborating with cross‑functional teams.

Labcorp seeks a Software Engineer to develop embedded control software and application-level solutions for laboratory robotics at its Bloomfield, CT facility. Responsibilities include leading development of robotics control systems, mentoring junior engineers, designing scalable software architecture, and creating automation tools and libraries.

aiR Services team at Relativity builds the shared backend platform powering the company’s generative AI suite. As a Software Engineer you design and operate scalable, secure backend services that route AI traffic across regions, ensuring reliability and fairness for high‑throughput workloads.