Top Senior Software Engineer Jobs

Lead design and implementation of scalable, reliable, secure distributed advertising platform services. Drive architecture, partner with PM/Data Science, deliver end-to-end projects, use telemetry and A/B testing, mentor engineers, and influence platform-wide technical direction.

Build and maintain Python-based automation, services, test infrastructure, and performance analysis tooling for a distributed database system. Collaborate with internal stakeholders, improve developer tooling and reproducible testing, analyze system performance, and create documentation and runbooks. The role requires strong software fundamentals, systems thinking, Linux and CI experience, and the ability to learn new languages and systems quickly.

Lead a small engineering team developing and integrating mission autonomy software for Group 3–5 unmanned aerial systems. Responsibilities include autonomy technology leadership, edge-platform software integration, robotics algorithm development, simulation-based validation, proposal and contract support, program milestone management, customer interaction, and R&D roadmap collaboration. The role requires occasional travel and the ability to obtain and maintain a U.S. Department of Defense security clearance.

Develop and maintain secure ASP.NET web applications and Oracle databases supporting embedded systems, command-and-control applications, communications, avionics, and weapons systems. Responsibilities include software design, integration, testing, troubleshooting, configuration management, SDLC documentation, performance assessment, and compliance with government cybersecurity and quality standards.

Develop and optimize scalable mobile applications for a digital commerce platform using React Native, TypeScript, Go, and modern architecture. Responsibilities include designing APIs and reusable components, writing tested production code, collaborating across product and engineering teams, improving performance and accessibility, troubleshooting production systems, participating in on-call support, and mentoring junior engineers.

Designs, develops, tests, and supports complex Salesforce applications using APEX, LWC, JavaScript, HTML, CSS, and nCino. Performs systems analysis, REST API development, technical planning, application evaluation, documentation, and process improvement. Coordinates project resources, manages technical tasks, ensures application efficiency and compliance, designs software test plans, and mentors junior engineers.

Leads the design, development, and implementation of production-grade web applications and biomedical data platforms. Builds Node.js and React applications, APIs, server-side components, and scalable cloud-based solutions. Provides technical leadership, mentors junior engineers, coordinates cross-site projects, manages release schedules, prioritizes features, collaborates with scientists and product teams, performs testing and code reviews, and maintains technical documentation and deployment guidance.

Develops, maintains, enhances, reviews, and tests complex software systems based on documented requirements. Responsibilities include software design, coding, problem resolution, requirements analysis, technical documentation, readiness reviews, and presentations. The role may involve analytics, algorithm development, large data sets, real-time systems, and business information systems while following government software development procedures.

Leads architecture and development of scalable AI-powered systems across platforms and product lines. Establishes technical strategy, guides AI platform and model lifecycle investments, drives engineering standards for security, performance, and reliability, and evaluates emerging technologies such as LLMs and autonomous systems. Partners with product and engineering leaders, mentors senior engineers, and leads cross-functional initiatives that improve engineering velocity and business outcomes. Requires deep expertise in AI architecture, distributed systems, cloud-native design, and software engineering leadership.

Design, build, and operate scalable account provisioning systems for global communications services. Responsibilities include improving performance and availability, resolving provisioning bottlenecks, participating in architecture and code reviews, collaborating with product and engineering stakeholders, and mentoring less experienced engineers. The role requires developing large-scale distributed systems and maintaining high standards for code quality, testing, documentation, and technical communication.

Develop production-grade robotics perception software for warehouse robots using 3D LiDAR and multisensor data. Own localization, state estimation, obstacle mapping, point-cloud processing, sensor calibration, and integration of machine-learning outputs. Optimize real-time edge-compute pipelines and make system-level architectural decisions for dynamic physical environments.

Lead the design, development, and optimization of enterprise software platforms for aerospace applications. Responsibilities include maintaining UI component libraries, operating private package registries, building application templates and scaffolding tools, developing an internal developer portal, creating shared SDKs and platform libraries, writing documentation, measuring developer productivity, and partnering with platform engineering and AI teams. The role requires strong frontend and backend development skills, cross-functional collaboration, and occasional travel in a hybrid environment.

Develops and troubleshoots software supporting the DLA JAMMEX program, with emphasis on APIs, BPMN-based process automation, and low-code/no-code platforms. Leads software projects, creates user manuals, and directs the work of other developers. The role requires experience with platforms such as Appian, Salesforce, or Nintex; Microsoft SQL Server and .NET; agile and hybrid development; relevant technical certification; and an IT-II clearance or current NACLC.

Lead development of secure modeling and simulation software and platform services in cloud environments. Design DevSecOps pipelines with GitLab CI/CD, manage artifacts through Artifactory, and develop high-performance C++ applications across Linux and Windows, including RHEL. Support system integration, testing, deployment, compliance, and documentation while providing technical leadership and mentoring. Collaborate with stakeholders to deliver secure, mission-focused platform capabilities for Department of the Air Force and broader defense initiatives.

Design, implement, and ship full‑stack features using Next.js and Django. Own features end‑to‑end, optimize background processing with Celery/Redis, and improve scalability. Collaborate on containerized deployments (Docker, Kubernetes) and CI/CD (GitLab). Provide technical leadership via code reviews, documentation, and architectural decisions.

Build and scale Base360.ai’s short-term rental platform, including customer-facing applications, APIs, automation engines, AI-powered workflows, third-party integrations, and cloud infrastructure. Develop systems for reservations, pricing, payments, guest communication, property operations, reporting, and financial workflows. Own projects end to end, make architectural decisions, ensure reliability, and deliver scalable products in a remote-first startup environment.

Designs, develops, tests, deploys, modernizes, and supports Java enterprise applications and integrations. Troubleshoots applications, APIs, databases, and data pipelines; improves reliability through automation, testing, monitoring, CI/CD, and secure coding. Translates business requirements into maintainable solutions, collaborates with stakeholders and vendors, participates in code reviews and design discussions, and mentors teammates. The hybrid role requires working from the Chicago office at least one day per week.

Leads the design, development, testing, and deployment of scalable full-stack SaaS applications. Builds features using ReactJS, TypeScript, NodeJS, PostgreSQL, and S3; resolves complex architectural issues; advances AI-native development; and drives cloud, DevOps, observability, and event-driven architecture practices. Collaborates cross-functionally, mentors engineers, represents technical strategy, and delivers customer-focused solutions for government agencies.

Develop production software using AI-assisted and Spec-Driven Development practices. Implement features from approved specifications, evaluate AI-generated code, handle integrations and edge cases, maintain automated testing, and contribute to architecture. Ensure systems are secure, auditable, performant, observable, and compliant with GxP expectations. Work across backend and frontend technologies within small, collaborative squads.

Design and build JTX, a high-performance Solana trading application. Develop low-latency, reliable systems for order routing, execution, real-time market data, and position management. Own critical infrastructure, implement security across transaction signing and user data, make architectural decisions, and collaborate with product and infrastructure teams in a fast-moving 0-to-1 environment.

Build and maintain scalable full-stack distributed systems using Golang, PostgreSQL, and gRPC. Responsibilities include architecture, UI development, data modeling, service instrumentation, automated data ingestion, deployment automation, production support, reliability and security improvements, stakeholder collaboration, and mentoring engineers.

Build core software systems for datacenter lifecycle management, including sites, designs, equipment, bills of materials, and construction progress. Partner with datacenter, energy, supply chain, and research teams to understand workflows, consolidate fragmented data, integrate industry tools, and ensure permissions, auditability, and data quality. Deliver user-focused products iteratively to accelerate compute infrastructure deployment.

Leads end-to-end engineering for complex, distributed systems and shared platform services. Designs scalable cloud-native architectures, event-driven applications, security models, deployment strategies, and resilient data flows. Develops and supports enterprise applications, establishes testing and quality practices, manages technical documentation and project plans, advises leadership, resolves cross-functional technology issues, and mentors junior engineers. Requires strong expertise across Java, Spring Boot, Node.js, React, Kafka, containers, CI/CD, cloud deployment, automated testing, and observability.

Architects and develops large-scale customer-facing web applications, reusable front-end systems, distributed services, and Oracle-based financial data warehouse platforms. Leads application architecture, CI/CD, testing, deployment, observability, documentation, risk management, and project planning. Advises management on technical strategy, resolves business and technology issues, ensures delivery quality and timelines, and mentors junior engineers.

Develops complex financial services applications using Java, Spring Boot, REST APIs, AWS, microservices, Kubernetes, Kafka, SNS, and SQS. Designs resilient distributed systems, automated unit and integration tests, CI/CD deployments, databases, and production support processes. Performs technical analysis, documentation, testing, user acceptance support, incident diagnosis, and application implementation across multiple projects.