Top Software Engineer Jobs

Build and architect Alpaca’s high-performance algorithmic trading platform. Responsibilities include writing backend and frontend code, designing distributed and highly available systems, optimizing low-latency and high-throughput performance, and developing scalable databases, messaging systems, concurrency controls, and service-oriented architectures. The role also involves making critical platform decisions and potentially contributing to order and risk management, trading systems, observability, cloud infrastructure, and financial ledger capabilities.

Develop and maintain cloud and data-service applications, APIs, scripts, and services supporting national security missions. Implement features, resolve defects, manage Git repositories, create DevOps configurations and deployment scripts, and troubleshoot escalated customer issues. Route, transform, and enrich data across systems while collaborating with data providers and consumers. The role requires AWS, Terraform, API development, Python scripting, and an active TS/SCI clearance with polygraph.

Build Hazel’s AI action layer and full-stack product features using TypeScript, React, and Go. Develop LLM agent workflows with streaming responses, multi-step tool use, approvals, and human-in-the-loop safeguards. Create read/write integrations with Shopify, Klaviyo, Meta, Amazon, and other platforms. Own scalable APIs, including query optimization and schema design, while working directly with founders and customers in a senior, high-autonomy environment.

Set technical direction across teams while remaining hands-on in backend and frontend architecture. Own high-risk problems and major features from design through launch, lead design and code reviews, partner with executives, mentor senior engineers, improve engineering practices, and apply AI coding tools. Build scalable systems using modern languages, distributed systems, APIs, and performance optimization, with a strong focus on business and patient outcomes.

Design and build high-performance, reliable, scalable network acceleration and distributed systems software. Responsibilities involve applying coding and distributed-systems expertise, debugging complex problems, and contributing to systems involving operating systems, networking, congestion control, and large-scale deployments.

Software Engineer Interns will help design, build, and deploy high-performance, reliable, scalable, and time-sensitive distributed systems. Responsibilities include applying data structures, algorithms, software design, kernel programming, concurrency, databases, and networking knowledge. Candidates should be pursuing a relevant degree and demonstrate proficiency in C, C++, Go, Java, Python, or Django, along with strong communication, debugging, and problem-solving skills.

Designs, develops, integrates, maintains, and supports enterprise software applications, with a focus on SAP TM. Translates business requirements into technical solutions, leads design sessions, troubleshoots production issues, documents systems, improves processes, and collaborates with business stakeholders, IT teams, and external partners to deliver reliable and scalable technology solutions.

Develop and maintain scalable full-stack government digital services using Ruby on Rails, React.js, and PostgreSQL. Build RESTful APIs and integrations, troubleshoot complex application issues, and manage monitoring with Datadog. Collaborate with cross-functional teams, contribute to architecture and technical design, mentor engineers, document solutions, use AI-assisted development tools, and lead smaller technical initiatives while supporting software quality, reliability, and maintainability.

Leads the design, development, testing, debugging, integration, and optimization of complex aerospace software systems. Defines requirements, conducts code reviews, documents software, mentors junior engineers, collaborates with multidisciplinary teams, and drives improvements in software performance and quality. The role supports hardware integration and requires occasional travel, hybrid work, and an active Secret U.S. security clearance.

Build and scale backend platform services for an AI gateway, including streaming responses, provider integrations, authentication, rate limiting, usage metering, cost tracking, observability, and resilient distributed infrastructure. Collaborate with founders, research, product, and customers while contributing across platform and AI evaluation products. The role requires strong Golang experience, production backend expertise, and onsite work in San Francisco three days per week.

Build and maintain a new software platform by independently designing, developing, testing, debugging, and shipping features. Collaborate with product managers, designers, and engineers on architecture, code reviews, and problem-solving. Optimize application performance and scalability, maintain existing systems, and contribute to Agile delivery practices. The role requires software development experience, programming skills, database knowledge, AI tool integration experience, and familiarity with cloud platforms, preferably AWS.

Build and optimize scalable data pipelines that ingest autonomous-vehicle sensor data, localize it against HD maps, and produce high-quality labels. Develop workflow orchestration, data models, testing strategies, and production tooling. Investigate pipeline issues, support reliable releases, and own features from design through documentation. Collaborate with ML, robotics, data engineering, annotation, product, and mapping teams.

Build and ship production backend systems supporting talent platforms and applied AI data workflows. Interns own projects end-to-end, collaborate with product, design, researchers, and AI companies, and develop scalable systems that impact customers. Responsibilities include writing production-grade code, designing systems, working with APIs and databases, and contributing to AI-focused products in a fast-paced, in-person environment.

Develops, maintains, tests, and enhances complex software systems for federal government customers. Responsibilities include requirements analysis, algorithm development, large-scale data processing, real-time systems, software design, troubleshooting, testing, and documentation. The role requires satellite protocol processing experience, critical-thinking ability, and proficiency in C++, Go, Rust, or Python. Candidates must be U.S. citizens and hold an appropriate TS/SCI clearance with an agency-approved polygraph.

Develop, test, and ship features for patient-facing applications, booking systems, clinical operations tools, and internal platforms. Collaborate with senior engineers on implementation, code reviews, debugging, troubleshooting, and automation for scheduling and patient engagement workflows. Build foundational experience with mobile applications, healthcare data systems, APIs, databases, version control, and production software while contributing to a collaborative engineering team.

Design, build, and maintain scalable applications, APIs, mobile platforms, booking systems, clinical integrations, and healthcare data systems. Own features end to end, make architectural decisions, improve security and reliability, and contribute to cloud deployment, CI/CD, monitoring, and DevOps. Collaborate with clinical, operations, and patient experience teams to deliver secure digital tools that improve patient care and clinic efficiency.

Owns the design, development, testing, deployment, and maintenance of production software. Builds C#/.NET backend services, Angular web applications, and .NET MAUI mobile apps; optimizes SQL Server databases; resolves production issues; improves reliability, security, performance, and observability; writes tests and documentation; participates in code reviews; and translates ambiguous business needs into maintainable technical solutions.

Leads development of secure, scalable full-stack applications across Oracle, UKG, and ServiceNow HR systems. Designs APIs, microservices, serverless functions, integrations, cloud architectures, CI/CD pipelines, and infrastructure as code using Azure and Terraform. Mentors engineers, leads code reviews, ensures security and performance standards, and partners with architects and product owners. The role also drives modernization, re-platforming, technical innovation, and delivery of enterprise-scale solutions.

Maintain, enhance, modernize, and troubleshoot mission-critical enterprise applications using Java, Spring Boot, JavaScript, Oracle, and SQL. Support application integration, configuration, deployments, cloud modernization, Docker and Linux operations, dependency upgrades, root-cause analysis, and defect resolution. Collaborate with customers and engineering stakeholders in an Agile environment to deliver secure, reliable, and maintainable software solutions.

Design, build, and enhance scalable Java-based microservices and backend components for Disney’s Unified Messaging Platform. Develop cloud-based asynchronous data processes, ensure service reliability and performance, participate in architecture and code reviews, and provide technical guidance to junior engineers. Collaborate with product, design, QA, operations, and business stakeholders to deliver features end-to-end. Participate in Agile ceremonies and provide rotational on-call support.

As a Full-Stack Software Engineer, you'll develop applications using Next.js and Node.js, support AWS infrastructure, and own end-to-end fixes in your code.

Develops, maintains, integrates, and enhances enterprise training management applications using Java, C#, JavaScript, PL/SQL, AWS, and Oracle or SQL Server databases. Responsibilities include legacy modernization, feature development, unit and integration testing, database object management, release planning, deployment scripting, DevSecOps practices, CI/CD, STIG implementation, ATO compliance, and system audits under DoD standards.

Design, maintain, and optimize encoding libraries and prompt-structure abstractions used across Anthropic. The role involves supporting multimodal data, running experiments on structured inputs, performing complex refactors, improving performance, and adapting systems for emerging AI research and production needs. The engineer will collaborate closely with researchers and engineers while maintaining intuitive APIs and enabling new encoding capabilities.

As a Fullstack Software Engineer, you'll design, develop, and maintain scalable frontend and backend systems while collaborating across teams.

Develop and maintain production-critical software for HVAC product selection, configuration, pricing, and quoting. Build numerical calculation engines, performance databases, configuration rules, integrations with ERP, CRM, and PLM systems, and automated technical deliverables. Establish scalable architecture, testing, version control, deployment, and release practices while collaborating with mechanical engineering, applications, sales, and testing teams.