Top Software Engineer Jobs in Hartford, CT

Develop, maintain, enhance, and support a mission-critical HUD enterprise application using Java, JavaScript, SQL, and related web technologies. Responsibilities include full-stack development, UI and API implementation, database workflows, troubleshooting, code reviews, testing, releases, deployment support, documentation, and compliance with security and accessibility standards.

Build and operate secure, scalable multi-cloud infrastructure across AWS, GCP, and networking platforms. Develop self-service tooling, infrastructure-as-code defaults, cloud guardrails, and standardized platform patterns. Lead cross-team infrastructure initiatives, technical investigations, and operational improvements while partnering with security, compute, routing, and other infrastructure teams.

Build and operate blockchain network infrastructure integrating protocols such as Bitcoin and Ethereum with internal services. Design reliable APIs, SDKs, data contracts, observability, and SLOs; lead multi-quarter chain integrations, architecture modernization, and migrations. Improve latency, reliability, and cost for high-throughput distributed systems while owning production services and on-call responsibilities.

Lead technical strategy and execution for multi-quarter initiatives, build and maintain software systems using AI, mentor and elevate engineers, collaborate across disciplines, and protect user privacy and security. The role involves working in an AWS and Kubernetes environment with technologies including Python, TypeScript, React, Go, Airflow, dbt, and Claude Code.

Job posting for Microsoft Software Engineer (IC3/IC4 levels). Lists base pay ranges for U.S. and SF/NY metro areas, application timing, and equal opportunity statement. No specific responsibilities or technical requirements provided.

Designs, develops, and optimizes high-performance networking infrastructure for large-scale distributed AI training and inference in Azure. Responsibilities include building low-latency communication frameworks, benchmarking scalability, debugging complex networking issues, improving code performance and reliability, creating technical designs, participating in on-call operations, and guiding engineers. The role emphasizes observability, availability, scalability, and performance across diverse network architectures and accelerator technologies.

Develop and maintain a production AI-enabled software platform in a federal/DoD environment. Investigate defects, troubleshoot application and system issues, perform root-cause analysis, implement and deploy fixes, support incidents and releases, and maintain technical documentation. Conduct quarterly AI model tuning by evaluating behavior, adjusting prompts and configurations, validating changes, monitoring regressions, and ensuring security, governance, traceability, and change-control compliance.

Design, develop, launch, and maintain scalable backend systems and APIs used by merchant and partner integrations. Collaborate with engineers and stakeholders, balance speed with system quality, debug code, conduct code reviews, and write tested, extensible software. The role requires experience with distributed systems, Python or Kotlin, AWS, MySQL, and Kubernetes, along with strong communication and ownership of professional growth.

Build, test, deploy, and maintain scoped software features and fixes for mission-critical, cloud-native defense systems. Collaborate with engineering, product, design, and users; debug issues; document implementations; contribute to open-source projects and tooling; and participate in production support and on-call practices. The role offers guidance while developing skills in architecture, Kubernetes, software delivery, interoperability, security, and reliability.

Develop and enhance Ferguson’s custom Trilogie ERP system across multiple functional areas. Responsibilities include designing business-process solutions, owning software projects through implementation, integrating APIs and web services, collaborating with analysts, product owners, QA teams, administrators, and vendors, writing unit tests, reviewing code, and optimizing performance in high-transaction environments. The role also supports Trilogie’s migration from Unix to Linux and requires extensive UniBasic or Pick-based development experience.

Develop, test, deploy, operate, and maintain enterprise software and legacy systems while modernizing cloud infrastructure on AWS. Build and support development, testing, production, and disaster-recovery environments for a federal disaster loan application system. Apply full-stack development, solution architecture, secure system design, DevOps, CI/CD, infrastructure as code, containerization, monitoring, troubleshooting, and software lifecycle practices. Collaborate with customers and technical teams to communicate requirements and resolve complex operational issues.

Designs, develops, deploys, tests, and reviews software applications, features, and defect fixes. Collaborates with team leaders and users to support a product roadmap, analyze requirements, document software, provide developer-level support, and learn existing codebases. The role also involves participating in planning meetings, conferences, and occasional team travel.

A 12-week software engineering internship involving feature development, software testing, and continuous production deployment. Interns own projects end-to-end, collaborate across engineering and business teams, and receive mentorship while gaining experience with product development and reliable, real-time software systems.

Design, develop, and maintain RESTful APIs and scalable event-driven cloud solutions using TypeScript and AWS. Build infrastructure as code with AWS CDK, implement secure and highly available architectures, troubleshoot production issues, optimize performance, participate in technical planning and code reviews, document solutions, collaborate with teams and vendors, and mentor engineers on AWS best practices.

Design and build reliable, scalable backend services, search APIs, semantic and lexical search systems, and platform components serving millions of users. Collaborate with engineering, product, and QA teams to translate requirements into solutions, while improving observability, monitoring, alerting, and operational readiness. Support multi-region systems using CI/CD, infrastructure as code, containers, high availability, and disaster recovery practices.

Develop and maintain Java and Angular applications supporting USTRANSCOM’s Integrated Booking System. Responsibilities include implementing requirements, writing and reviewing code, troubleshooting defects, integrating services, supporting CI/CD and secure coding practices, participating in Agile ceremonies, documenting solutions, and contributing to unit, integration, and system testing. The developer collaborates with senior developers, QA, DevSecOps, and infrastructure teams in a fully remote environment.

Design, build, and operate high-throughput, low-latency ad-serving infrastructure processing millions of requests per second. Optimize GPU-powered TensorRT inference, feature stores, model serving, benchmarking, experimentation tooling, and system reliability. Partner with machine learning engineers to productionize models and own systems through design, deployment, observability, capacity planning, incident response, and optimization.

Develop fullstack web applications, enhance platform performance, collaborate on high-impact opportunities, and ensure stable, scalable solutions. Engage in rapid iterations and be a committed team player.

Develop and maintain software components for ML-assisted media content inspection pipelines supporting automated asset validation, enrichment, and analysis. Integrate AI and machine-learning services, work with computer vision and LLM workflows, support cloud-based systems, and assist with production monitoring and troubleshooting. The role requires collaboration, testing, documentation, and continuous development of software, cloud, and introductory machine-learning skills.

Lead development of scalable content inspection pipelines using computer vision and vision language models to analyze video and image assets. Design, implement, test, deploy, and support distributed systems that extract temporal metadata, enable validation and enrichment workflows, and improve media discovery. Collaborate with platform and product teams, guide architecture, participate in on-call support, resolve production issues, and mentor engineers while promoting quality engineering practices.

Design and implement CIAM backend services for authentication and authorization. Integrate identity systems, manage secure flows, and automate infrastructure.

Build and ship end-to-end features for Dover's marketplace and ATS. Propose product ideas, implement designs, launch, iterate in production, and collaborate closely with a small engineering team to move quickly and maintain high quality.

Develops and maintains full-stack software within a remote Agile DevOps team. Responsibilities include requirements analysis, solution design, Java and frontend development, REST APIs, data access layers, database schemas, automated testing, CI/CD implementation, and Docker-based development. The role also supports quality, security, and deployment standards while collaborating within a Scrum team.

Build and maintain backend services and APIs powering ESPN streaming experiences across apps, websites, connected TVs, and partner platforms. Develop scalable distributed systems, troubleshoot high-traffic APIs and caching layers, support reliability and observability, participate in code reviews, testing, deployments, on-call rotations, live event support, incident response, and agile planning. Collaborate across product and engineering teams while researching modern technologies and AI-assisted development workflows.

As a Billing & Analytics Software Engineer, you'll design and maintain the billing pipeline, integrate billing systems, and develop customer-facing analytics dashboards to support revenue recognition and operational observability.