Top Senior Software Engineer Jobs in Hartford, CT

Define technical direction for hyperscale Azure Storage components; architect, develop, test, and support highly scalable, secure, compliant, and highly available cloud services. Lead multiple engineering projects, improve reliability, scalability, performance, consistency, and observability, and apply AIOps for incident detection, root-cause analysis, and operational excellence.

Lead architecture and development of scalable full-stack systems spanning web, mobile, backend, data, and partner integrations. Build React and TypeScript applications, Node.js services, APIs, and AWS-based distributed systems. Drive cloud-native DevOps, reliability, security, compliance, and AI-assisted engineering practices. Influence cross-team technical direction, establish shared standards, mentor engineers, and lead initiatives across frontend, backend, mobile, and data domains.

Design, build, and scale high-throughput, low-latency Go services powering blockchain RPC infrastructure. Architect distributed systems, own production delivery, improve uptime and latency, resolve complex production issues, and collaborate across Product, Infrastructure, and Developer Experience teams.

Design, build, and operate high-throughput blockchain infrastructure using Go and Rust. Own distributed systems end to end, including architecture, performance optimization, security, testing, deployment, observability, incident response, and reliability. Lead technical designs and code reviews, mentor engineers, debug complex production issues, and collaborate across Product, Infrastructure, Security, and Developer Experience teams.

Lead backend-focused software architecture and development across distributed systems, data ingestion, experimentation platforms, AI workflows, and product capabilities. Build primarily in Python while contributing to React and TypeScript frontend work. Translate ambiguous product needs into scalable production systems, guide technical direction, partner with product and data teams, mentor engineers, and improve engineering practices.

Design, develop, test, and maintain enterprise-scale healthcare software using C#, .NET, RESTful APIs, SQL Server, and modern JavaScript frameworks. Build scalable features, optimize databases, address concurrency issues, debug complex systems, contribute to architecture decisions, and support the full software development lifecycle. Collaborate with distributed cross-functional teams while helping modernize infrastructure through AWS migration, microservices, and cloud technologies.

Fix correctness, validation, security, application-blocking, and conformance bugs in Firefox’s WebGPU implementation. Develop and test fixes in Rust, wgpu, and Gecko; diagnose graphics and application failures; address fuzzing findings; participate in upstream code review; and land reviewed changes that reduce release backlogs for Linux and Android.

Leads full-stack software development across the Censis application stack, including design, coding, testing, deployment, production support, and defect resolution. Develops C#/.NET and Vue.js applications, REST APIs, and SQL Server solutions. Improves security, reliability, observability, and performance through automated testing, secure coding, root-cause analysis, and preventive engineering practices. Mentors developers, leads technical discussions, collaborates across Product, QA, DevOps, Security, and Support, and uses approved generative AI tools responsibly.

Design and deliver secure, high-performance microservices and APIs. Develop backend services in Java and Python, integrate ML components, build front-end service layers, deploy containerized applications to cloud platforms, and collaborate in Agile teams to ensure scalable, test-driven solutions.

Leads and mentors ServiceNow software engineers delivering complex customer projects. Develops and customizes ServiceNow solutions, troubleshoots platform and CSM issues, maintains integrations and modules, collaborates with stakeholders, supports upgrades and performance initiatives, documents technical solutions, and performs deployments.

Develop and maintain ChartCheck, a full-stack application supporting radiotherapy plan checking and clinical workflows. Responsibilities include building performant WPF desktop software, DICOM integrations, image and dose visualization, DVH evaluation, architecture, testing, code reviews, and technical decision-making. The role collaborates with physicists and product leaders, mentors teammates, and requires front-end and back-end development across C#, .NET, JavaScript, databases, and cloud systems.

Design, develop, and maintain scalable Python applications; collaborate with cross-functional teams to deliver features; ensure performance and quality; identify and fix bugs; maintain code quality and automation; lead and mentor team members using agile practices.

Develop and maintain high-performance web frontend applications and backend services for a collaborative XR platform. Lead complex cross-team projects, shape cloud and web architecture, optimize browser and XR headset performance, and translate business requirements into product features. The role requires expertise in JavaScript, React, TypeScript, browser performance, distributed systems, real-time communication, AWS, and Electron, with preferred experience in 3D web technologies, cloud-native architecture, databases, containers, game engines, CI/CD, and observability.

Lead technical direction and delivery for the Acquisition & Onboarding full‑stack team. Build and maintain mobile (React Native/native) and web experiences, backend services at scale, and operational tooling. Drive architecture, mentor engineers, ensure reliability/monitoring/on‑call readiness, collaborate with product and design, and improve dev processes, testing, and release practices to impact conversion and retention.

Lead front-end technical strategy for Coinbase Advanced trading platform: define and execute a scalable roadmap, deliver a low-latency interface across web and mobile, mentor engineers, anchor complex projects, and ensure high standards for code quality and system design.

Lead architecture and delivery of Control Center platform capabilities (MCP tool registries, AI orchestration, access automation). Design agentic AI integrations, HITL workflows, and evaluation/guardrail frameworks. Own backend services, SLOs, observability, incident response, and operational readiness for Tier-1 systems. Drive cross-team technical direction, author TDDs, run design reviews, mentor engineers, and partner with Product and Security to deliver secure, scalable platform primitives.

Lead technical strategy for Solana staking at Coinbase, optimizing validator performance and driving cross-product integration while mentoring engineers.

Design and implement AI systems for customer support and compliance, architect solutions, mentor team members, and manage project deliverables.

Lead the technical strategy for Coinbase's Data Platform, architecting data systems for AI/ML workloads and ensuring data reliability, performance, and cross-functional alignment.

Develop and maintain PowerUp Sports’ software platform, build and release new features, integrate technologies, optimize PHP applications on Azure, manage SQL Server databases, participate in code reviews, mentor junior developers, and support scalable, reliable architecture.

Design, build, and optimize scalable cloud and web software with focus on infrastructure, performance, and hardware integration for IoT devices. Collaborate with hardware teams to ensure connectivity and high availability, implement new features, and improve system efficiency.

Build simulation and planning systems for complex communications networks. Develop tools that model hypothetical scenarios, vary configurations and assumptions, compare outcomes, surface tradeoffs, and identify risks. Design scalable, reliable backend systems for complex, evolving network states while collaborating across product engineering to integrate capabilities into broader workflows. Responsibilities span system design, implementation, testing, debugging, and operational support.

Leads a software engineering team while providing technical direction, mentorship, and subject matter expertise. Oversees complex end-to-end software development, including design, development, testing, troubleshooting, documentation, monitoring, and implementation. Directs resolution of critical incidents, improves engineering processes, applies emerging technology trends, partners with business stakeholders, and drives complex initiatives. Requires strong delivery, problem-solving, communication, decision-making, and leadership skills.

Lead architecture, design, and delivery of PET product features; write production full‑stack code; champion testing, observability, CI/CD and operational readiness; mentor engineers and collaborate with product to shape technical roadmap.

Build and own end-to-end frontend experiences for Coinbase card products across web and mobile. Ship high-scale consumer features, improve payment flow performance and SLOs, reduce latency and CX contacts, mentor engineers, and collaborate with product, design, and backend teams to deliver reliable, user-focused card functionality.