Top Software Engineer Jobs

Build and architect a next-generation radar software platform, including asynchronous Rust backend services, APIs, real-time data models, React integrations, resilient offline-capable systems, observability, CI/CD, testing, and security hardening. Collaborate with product, UX, and engineering teams, mentor peers, lead design reviews, and advance algorithms and domain logic into high-performance production services for defense and automotive applications.

Build and optimize Circleback’s product-led growth loop across signup, onboarding, activation, retention, referrals, upgrades, and integrations. Develop analytics and experimentation infrastructure, including event instrumentation, attribution, dashboards, and A/B tests. Ship growth features across web, desktop, and mobile platforms while partnering with founders and marketing to identify and evaluate experiments.

Build and maintain native Android and iOS systems, ensuring cross-platform consistency. Contribute across web services, databases, testing, deployment, and production support. Collaborate with development teams, follow and improve engineering patterns, and use AI-assisted development tools. The role requires mobile development experience, REST API knowledge, Kotlin, Java, Swift, Android Studio, Xcode, Git, agile practices, and 3–5 years of professional experience.

Build and maintain full-stack donor-facing giving forms, campaign tools, administrative features, and payment flows across Stripe, ACH, and digital wallets. Own features from technical design through deployment, testing, and production support. Collaborate with product, design, and engineering partners in an Agile environment, contribute to code quality and team initiatives, and participate in rotational support and on-call coverage.

Build backend systems, APIs, data pipelines, integrations, and workflow automations for enterprise customers. Translate complex procurement, finance, ERP, and operational workflows into scalable technical solutions; debug distributed integration issues; support customer discovery and deployments; and partner with Product and Engineering to develop reusable platform capabilities. The role requires strong backend engineering, customer communication, systems architecture, and judgment in ambiguous environments.

Develop and maintain high-scale JavaScript and TypeScript monetization solutions for publisher websites. Own Freestar’s Prebid.js and Prebid Server header-bidding wrapper, including architecture, adapters, modules, releases, and performance. Integrate with Google Ad Manager, GPT, IMA SDK, and programmatic advertising systems. Monitor Core Web Vitals, reliability, and network performance while reviewing code, resolving critical issues, and guiding technical decisions.

Develop and modernize legacy missile-warning training software in classified and unclassified environments. Responsibilities include Java, C++, and C# development; requirements analysis; architecture and design; testing; deployment; sustainment; documentation; customer collaboration; and technical deliverable ownership. The role requires containerized application development, database and messaging integration, code modernization, agile practices, and participation throughout the software development lifecycle.

Own and evolve cybersecurity platform integrations, parser frameworks, data normalization, and microservice-based solutions. Design secure APIs, process security logs from diverse sources, and ensure ingested data supports detection and analytics. Drive architecture decisions, improve framework reliability, mentor engineers, and use AI tools to accelerate development, testing, parsing, automation, and operational workflows.

Build, design, test, audit, and deploy Solidity smart contracts on EVM chains that integrate with tokenized asset providers. Responsibilities include contract architecture, storage and access control, upgradeability, security reviews, fuzzing, invariant testing, deployment rehearsals, monitoring, and incident response. The role also offers opportunities to work with Rust and Solana programs, while contributing product direction in a remote-first engineering team.

Leads development, integration, and operational support of spacecraft ground software for testing, mission operations, command and telemetry workflows. Builds distributed systems, APIs, microservices, data pipelines, dashboards, monitoring, and automation. Supports spacecraft and subsystem integration, anomaly investigations, system resiliency, security, performance, CI/CD, and operational tooling. Collaborates with mission operations and engineering teams, owns portions of ground architecture, and mentors junior and mid-level engineers.