Top Software Engineer Jobs

Design, build, and operate full‑stack features and platforms for Horizon. Work across frontend, backend, infrastructure, data, and developer tooling; formulate solutions, ship production code, improve reliability and developer productivity, and expand AI/agent-assisted workflows. Collaborate with product, customers, and cross-functional teams, review code (including agent-generated), and improve internal tooling, observability, and deployment workflows.

Senior full‑stack software engineer focused on storage systems supporting DoD programs. Work includes cluster administration, cloud storage, backup and data retention across Windows and Linux, building/maintaining CI/CD pipelines and storage services using Git/GitLab, Kubernetes, Docker/Rancher, configuration management, PKI, Python and Java. Requires cleared, highly experienced candidate.

Provide technical leadership and hands-on full-stack development for mission-focused, event-driven, cloud-native systems. Design architectures, integration patterns, scalable services/APIs, mentor teams, collaborate with stakeholders, and improve DevSecOps, CI/CD, observability, and software quality across multiple projects.

Lead design and implementation of GraphQL/semantic APIs on AWS AppSync, integrate data sources with Data Engineering, optimize serverless performance, establish governance and security, drive code quality and testing, mentor junior engineers, and document semantic API patterns.

Lead design and maintenance of InstallShield-based installers and custom actions, modernize installer infrastructure, troubleshoot Windows installation issues, contribute to C/C++/C# core components, mentor engineers, and improve packaging, deployment, and automated install testing.

Lead development of VALORANT build and developer-facing platforms. Improve iteration workflows across local development, Unreal build/cook systems, CI, release infrastructure, and tooling. Drive architecture and long-term initiatives, resolve cross-system bottlenecks, collaborate with stakeholders, mentor engineers, and participate in support rotation.

Design, build, and operate scalable, high-performance cloud backend systems for Synack's PTaaS. Deliver microservice components, REST/gRPC APIs, integrate messaging (Pub/Sub/Kafka), ensure observability and automated testing, resolve performance issues, follow SDLC/GitOps practices, and mentor junior engineers.

Lead technical strategy and execution for enterprise software, design and build new systems, improve existing platforms, mentor engineers, collaborate with product and stakeholders, ensure quality/performance, share best practices, analyze costs, and support operational readiness including on-call production support.

Design, build, and operate scalable backend or full‑stack services (frontend focus) for rates and inventory. Implement system and API design, write tests, deploy and monitor production services, participate in code reviews and design discussions, and safely integrate AI/ML-enabled components while improving reliability, observability, and operational processes.

Define frontend technical strategy and standards across the org, establish data layer and state management best practices, collaborate with AI Developer Experience on AI-assisted frontend tooling, embed with teams to write code (~50% time), drive platform-level operational excellence, influence executive strategy, and mentor engineers to raise frontend architecture and developer experience.

Lead full‑stack design and development using TypeScript and modern frameworks, build and maintain mobile/web apps, leverage AI tools for rapid prototyping, ensure production quality and observability, drive cross‑team projects, mentor engineers, and influence engineering standards and roadmaps.

Lead design, development, and improvement of enterprise software and SDLC processes. Oversee system architecture, identify gaps, implement cloud-based and big data solutions, manage DevOps/tooling, mentor engineers, and recommend improvements to ensure secure, scalable, and high-quality products.

Designs and implements technology solutions in an agile squad, focusing on software development best practices, operational excellence, and technical mentorship.

Own and lead the React Native mobile app architecture, quality, and releases. Mentor engineers, enforce mobile best practices, ship features end-to-end, improve performance and observability, and contribute across React web and backend services.

Senior full‑stack engineer responsible for designing, building, testing, and supporting scalable backend services and user-facing UIs for a healthcare data platform. Works across Agile teams on data ingestion/transformation, APIs, cloud infrastructure, containers, and CI/CD. Leads major initiatives, mentors team members, participates in on-call rotation, and ensures HIPAA/compliance and engineering best practices.

Lead a Scrum agile team to architect, build, test, and deliver Fidelity's web applications. Provide technical leadership, mentor developers, design full-stack features, and ensure secure, test-covered implementations using modern server- and client-side technologies.

Lead full-stack development of internal and external web applications using TypeScript/Node.js/Next.js. Design scalable Azure-deployed systems, maintain Microsoft Dynamics/Business Central integrations, build AI-enabled features, mentor distributed teams, manage CI/CD, and collaborate with product and design to deliver secure, performant, and accessible software.

Lead .NET Full Stack engineer responsible for architecting systems, driving technical strategy, leading multi-developer projects, mentoring engineers, improving processes, ensuring high-quality deliveries, and communicating with stakeholders. Must support emergency restoration work and travel regionally between MA/CT/NH.

Hands-on senior developer for the Canvas custom-indexing web app: enhance and maintain C#/.NET application and APIs, re-architect to Blazor and API-first design, integrate with Azure and SQL Server, collaborate with product team to support client-facing workflows.

Senior Staff iOS engineer who makes cross-team technical decisions, establishes processes and conventions, and leads multiple initiatives. Designs and implements consumer-facing iOS apps in Swift, works with GraphQL/REST APIs, ensures multithreaded/asynchronous correctness, drives testing (unit and automation), mentors engineers, and partners with product to solve business problems.

Lead and coordinate iOS engineering projects, define technical tasks, improve processes, and make architectural decisions. Develop and maintain consumer-facing mobile apps in Swift using multi-threading and async patterns, consume GraphQL/REST APIs, apply design patterns (MVC/MVVM), and champion testing (unit and automation). Mentor engineers and represent the company to partners and stakeholders.

Lead architecture, design, and delivery of ultra-low-latency, high-throughput trading systems. Build and maintain REST APIs, microservices, event-driven platforms (Kafka/Kubernetes), CI/CD and automated tests, and support 24x7 production operations. Provide technical leadership and mentorship, collaborate with Broker Dealer Operations, and improve performance, reliability, and scalability for multi-asset trading.

Design, build, and operate core Web3 platform services for wallet operations, transaction orchestration, settlement, and blockchain integrations. Implement secure, high-throughput, fault-tolerant distributed systems, API-first microservices, Kafka-based event architectures, observability with OpenTelemetry, and CI/CD-driven testing and DevSecOps practices. Provide L2/L3 production support and technical leadership.

Design, build, test, and operate Java-based microservices for Enterprise Payments. Participate in Agile ceremonies, practice TDD and pair programming, implement CI/CD pipelines, ensure observability and production support, and follow clean-code and DevOps best practices to deliver reliable, scalable payment solutions.

Lead the architecture and development of software platforms for T&D systems, ensuring security, performance, and integration while mentoring a team and collaborating across functions.