Top Senior Software Engineer Jobs

Develop and maintain LAMP and Perl software applications, taking ownership of existing implementations and designing new solutions. Build REST or SOAP APIs, create unit tests, implement test automation, and work with UNIX command-line tools. The role may involve high-throughput, highly available transaction-processing systems, along with Java, Spring, Hibernate, SVN, and object-oriented design. Candidates should work independently, communicate effectively, and have at least eight years of overall software development experience.

Lead design, development, and testing of payload flight software in Rust for attitude/pointing, command handling, telemetry, and data storage. Define architecture and coding conventions, implement FDIR, build automated test infrastructure (simulation/HIL), integrate with GNC/avionics/electrical teams, support integration, launch, and on-orbit ops, investigate anomalies, and mentor other engineers to achieve a near-term on-orbit demonstration.

Develop and operate highly scalable backend systems and AWS infrastructure. Responsibilities include maintaining Python HTTP services, working with DynamoDB, Elasticsearch, and Redis, provisioning cloud resources through infrastructure as code, reasoning about distributed systems, and owning software from design through monitoring. The role also focuses on reliability, security, performance, cost optimization, observability, technical roadmaps, and collaboration with engineering and product stakeholders.

Design, document, implement, and maintain enterprise APIs and API gateway capabilities. Develop scalable search with natural language capabilities, automate CI/CD and testing, integrate IAM, maintain developer portals, and improve API lifecycle processes. Provide technical guidance, conduct code reviews, and ensure secure, performant, maintainable software across cloud-native environments.

Develop and enhance health data management products, collaborating with cross-functional teams and ensuring high-quality deliverables in a fast-paced environment.

Design and deliver airspace-management software for a commercial drone network. Build distributed services supporting shared-airspace coordination, flight deconfliction, and simulation; translate safety and operational requirements into resilient, observable, auditable systems; design APIs and data models; own projects through production; contribute to interoperability and open-source efforts; and provide technical leadership, reviews, and mentorship.

Build and own full-stack features, platform primitives, and integrations for Vanta Government Cloud. Design secure APIs and services for authentication, data ingestion, schema evolution, monitoring, and framework mappings. Operate integrations within the GovCloud boundary, including observability, on-call support, incident response, change management, performance improvements, and automated testing. Collaborate with federal subject-matter experts, agencies, vendors, and assessment organizations while using AI responsibly to improve development and operations.

Lead architecture and rollout of scalable platform services and customer-facing APIs. Define API standards, service boundaries, security, reliability, and developer experience; collaborate with data-platform teams; drive RFCs and complex multi-quarter initiatives; mentor engineers; and contribute across the stack using TypeScript, Node.js, React, and AI tools.

Lead critical infrastructure platform initiatives enabling engineering teams to build, deploy, and operate products consistently. Responsibilities include developing multi-account and multi-region Kubernetes clusters, MLOps capabilities, standardized deployment systems, and company-wide authentication. The role also involves automating engineering workflows, improving developer experience, prioritizing shared platform initiatives with stakeholders, driving platform adoption, and mentoring team members.

Develop and support customer payload software integrations for spacecraft missions. Guide external partners through SDKs, interfaces, simulations, testing, commanding, telemetry, payload management, fault recovery, and data downlink. Lead technical exchanges, design reviews, and integration campaigns while serving as the software point of contact. Maintain developer documentation and sample applications, collaborate with flight and systems engineering, and track integration metrics, OKRs, roadmaps, and delivery risks.

Design, build, and maintain scalable microservices and backend systems (Java/Kotlin) for growth initiatives. Enable experimentation, event-driven data pipelines, A/B testing, observability, and secure, high-availability services in collaboration with cross-functional teams.

The Senior Software Engineer will lead projects from inception to execution, write maintainable code, and enhance team culture while focusing on healthcare accessibility.

The Staff Software Engineer will lead technical discussions, drive complex feature implementation, mentor team members, and innovate using new technologies.

Design, build, test, and operate Gusto core customer-facing products across frontend and backend. Own multi-quarter projects, scale Ruby/Rails and JavaScript/React systems, mentor engineers, collaborate with product, data, design, and platform teams, and iterate on features that deliver measurable customer impact.

Lead architecture and delivery of Gusto's Commerce Platform (product catalog, promotion engine, subscription, entitlements). Partner with product, data science, and cross-functional teams to drive large, multi-quarter platform projects, ensure reliability and SLOs, mentor engineers, and promote AI-augmented development and platform adoption.

As a Senior Software Engineer on the Data Platform team, you'll enhance the data infrastructure, develop ETL pipelines, maintain data quality, collaborate across teams, and mentor junior engineers.

Design and execute test strategies for flight-critical XBat software and systems. Develop test plans/procedures, run V&V and regression tests, analyze test data, troubleshoot issues, and collaborate with engineering, manufacturing, and program teams to ensure performance, reliability, and mission readiness.

Develop and maintain Python-based software for automating hardware tests, integrate results with manufacturing systems, build scalable test infrastructure and CI/CD pipelines, create monitoring/visualization (e.g., Grafana), and collaborate with hardware, systems, and QA teams to ensure reliable aircraft component validation.

Design and implement full‑stack, low‑latency web-based Ground Control Station and C2 systems (map-centric UIs, real-time telemetry, video streaming), lead architecture and APIs, mentor engineers, support field tests and mission deployments, and ensure interoperability with C2 standards.

Design and build end-to-end web and AI-powered dashboard features, scale cross-platform full-stack infrastructure, standardize product patterns, mentor engineers, lead cross-team technical projects, and collaborate with product and design to improve user workflows and AI adoption.

Senior fullstack engineer to build and scale Brigit's consumer finance platform. Own end-to-end features across frontend (React/React Native/TypeScript) and backend (Java/REST/SQL), optimize database and APIs for high scale, integrate 3rd-party services, implement risk and transaction algorithms, improve CI/CD, testing, monitoring, and internal tooling to support millions of users.

Responsible for scaling the consumer finance platform, improving API performance, integrating with third-party APIs, and enhancing user experience for millions of users.

Own technically complex, mission-critical areas and define technical strategy for new products. Design and ship full‑stack, AI‑driven features end‑to‑end, build scalable data ingestion and API systems, partner with product/design/customer teams to translate ambiguous problems into measurable outcomes, mentor engineers, and raise engineering quality and standards across the organization.

Serve as the senior software development SME while performing full-stack Java web development and O&M activities. Guide developer teams, prioritize work, coordinate technical meetings, resolve issues, optimize processes, analyze requirements, estimate effort, review code, conduct testing, troubleshoot environments, create technical documentation, and implement software updates. The role requires extensive J2EE experience, SPA development, DevOps and CI/CD expertise, and active Public Trust/MBI clearance supporting an IRS Criminal Investigation system.

Design, build, test, review, and deploy production Java software while making architectural decisions and modernizing a legacy ERP platform. Lead and mentor local and overseas developers, establish distributed-team processes, and collaborate with product, QA, TechOps, and leadership. Own platform components through operational health, use AI coding assistants and agentic tools, improve integrations and workflows, and contribute to API, database, and modernization initiatives.