Top Software Engineer Jobs

Develop, test, debug, maintain, and modernize desktop applications in C++ supporting mission-critical U.S. Navy analysis systems. Collaborate with Agile Scrum teams, participate in design, code reviews, documentation, integration, deployment, sustainment, and Agile ceremonies. Work with software and systems engineers, testers, and government stakeholders while applying object-oriented programming, concurrency concepts, and software engineering best practices.

Build and scale Opencall’s realtime voice platform, customer dashboard, agent runtime, and analytics pipeline. Design high-performance systems capable of supporting over 100 times current traffic, develop impactful product features, and contribute to architecture decisions. The role begins as an individual contributor and may grow into organizational leadership involving hiring, delegation, and mentorship. Strong product judgment, communication, and software engineering fundamentals are essential.

Join Pariveda as an entry-level software engineer working in small teams to gather requirements, design, develop, test, and deliver client solutions. You'll learn cloud, data engineering, DevOps, and AI techniques, be mentored with regular reviews and promotion eligibility, present findings to stakeholders, and work in a hybrid model while engaging in continuous learning and professional development.

Build and scale the company's data infrastructure: design ingestion paths, event models, schema-flexible data models, change capture, query performance, freshness guarantees, and analytics serving for customer-facing dashboards and evaluation pipelines.

Join the User Systems team to design, develop, test, deploy and maintain cloud-based backend systems for mobile apps. Collaborate cross-functionally, optimize for performance, reliability and scalability, participate in code/design reviews and testing, document systems, and serve in an on-call rotation.

Design, build, test, deploy, and maintain cloud-based backend systems that power native mobile apps. Work in a cross-functional team to optimize performance, reliability, and scalability, participate in code and design reviews, write tests and documentation, and serve on the teamon-call rotation.

Design and build highly scalable microservice APIs on-prem and in cloud using AKS; backend development with Microsoft stack; integrate REST APIs; maintain high test coverage; mentor engineers, perform code reviews, champion DevOps, document systems, maintain legacy code, and leverage AI tools to improve productivity.

Build and iterate experimental trading products on the Aptos blockchain. Design and implement scalable APIs, indexing services, data pipelines, and trading infrastructure. Write clean, performant, well-tested production code and collaborate with protocol, infrastructure, and product teams to drive product development and experiments.

Founding technical lead for Aptos Payments: define and ship the Payment API, run partner integrations with banks/PSPs/stablecoin issuers, build trust infrastructure (reconciliation, KYC/KYB, testnet sandbox), integrate payments with trading RFQ systems, and hire and lead the initial engineering team while making build-vs-buy decisions tied to business gates.

Develop and maintain post-trade systems, work on greenfield and brownfield projects, troubleshoot production issues, perform upgrades, collaborate with cross-functional teams, propose process improvements, and document technical designs.

Design and build scalable backend systems within a microservices architecture. Lead development using Ruby/Node/Java/TypeScript, implement TDD, maintain CI/CD pipelines (CircleCI, ArgoCD), optimize performance with Postgres, AWS, and Kubernetes, collaborate across platform and infrastructure teams, mentor engineers, and adopt generative AI/agentic workflows to deliver SaaS solutions for construction Financials.

Build and operate core AI agent infrastructure: orchestration, context management, filesystem and sandboxed execution, model routing and serving, databases, Kubernetes, networking, and cloud systems to make long-running agent workloads fast, reliable, safe, and cost-efficient.

Build and operate backend APIs and services powering identity, workspaces, permissions, billing, connectors, webhooks, triggers, and third-party integrations. Design abstractions and data models, own production systems for correctness, security, reliability, and work across the stack to turn product needs into durable primitives.

Design, build, and maintain full-stack features and high-performance backend infrastructure. Architect scalable APIs and data flows, integrate frontend and backend systems, collaborate with product, design, and research to ship user-facing products, and ensure reliability, observability, and iterative experimentation across the platform.

Design, develop, and maintain SpaceX's in-house test infrastructure and supporting applications for production, integration, and simulation testing. Improve reliability, performance, and safety of test software; collaborate with flight software teams; own product development for test tooling and integrate AI-driven developer tooling.

Develop, maintain, and enhance enterprise software systems and SPLUNK integrations. Analyze data sources, design and implement back-end and front-end components, build RESTful services, deploy to Tomcat, lead small teams, execute testing, and collaborate with systems and hardware engineers to meet performance and security requirements.

Build and own Cogent's full‑stack AI security product experience: design, implement, and maintain backend microservices, APIs and databases; develop frontend interfaces (customer portal, knowledge engine, labeling tool, dashboards); integrate systems; ship features in a multi‑tenant/cloud environment; mentor hires and contribute to engineering, operational excellence, and hiring processes.

Lead frontend architecture and platform work, build reusable component libraries and tooling, deliver AI-driven user features for security workflows, mentor engineers, and ensure scalable, high-quality frontend infrastructure and UX.

Leads the design, development, testing, deployment, and operation of scalable sportsbook software. Owns complex technical execution, architectural decisions, incident resolution, code quality, observability, and process improvements. Collaborates with product, design, and engineering stakeholders, mentors developers, and helps shape team strategy and technical direction for distributed sportsbook systems.

Develop, maintain, and scale company websites and web applications. Design system infrastructure, manage servers, ensure security and performance, integrate back-end data sources, implement responsive HTML5/CSS3/JavaScript interfaces, write testable efficient code, document systems, and collaborate with designers and vendors to deploy enhancements and recovery policies.

Design and build resilient, high-throughput distributed systems in C++ to achieve six 9s reliability. Own platform components end-to-end, drive features from design to production, resolve consensus, resource-allocation, and fault-tolerance issues, and collaborate across engineering teams on architecture and code quality.

Develop and support software solutions for national security challenges, focusing on web applications and database design, while ensuring operational efficiency.

Design, implement, and test software features in sprints; translate business requirements into development/test/release plans; write unit tests; debug and resolve system issues; mentor junior developers; participate in CI/CD, version control, and Agile practices; track defects and report project progress.

Own storage, protection, and operations for relational, streaming, and analytical stores. Standardize backup, restore, retention, and encryption across Aurora/RDS, ClickHouse, and MSK. Build observability dashboards for capacity, performance, replication, lag, and cost. Create a Storage Operations Agent for incident triage, slow-query investigation, and remediation workflows. Hands-on engineering role focused on data infrastructure, automation, and agent-forward operations.

Seeking a principal software engineer with an active TS/SCI clearance and polygraph. Requires 11+ years' experience, a CS-related bachelor's, strong development in Java/Python, familiarity reading C/C++ and x86 Assembly, and expertise in OS internals, compilers, debugging, low-level software, file I/O, system APIs, memory management, and executable analysis.