Top Senior Software Engineer Jobs

Senior full‑stack engineer building customer‑facing web, mobile, and backend systems to grow US remittance business. Lead technical design, deliver scalable, observable services, use AI tools, mentor teammates, participate in on‑call rotation, and collaborate with product, design, and analytics to improve high‑value send experiences.

The Software Engineer will develop and maintain a proprietary electronic trading platform, lead transitions to in-house development, and collaborate on customer solutions, requiring 8+ years of experience in software engineering.

Develops and enhances server-based electronic gaming software, provides technical direction and architecture, collaborates with product management, supports production systems, tests and debugs applications, researches experimental designs, and mentors junior developers. The role requires strong C#/.NET and SQL Server expertise, complex software system design experience, object-oriented development knowledge, Agile experience, and a background in casino, charitable, or online gaming.

Design, build, and maintain full‑stack features for a clinical SaaS platform. Drive architecture, collaborate with product, ML, infra, and regulatory teams, uphold engineering standards, mentor peers, and ensure reliability, data integrity, and compliance for clinical trial workflows.

Senior full-stack software engineer responsible for designing, building, testing, and supporting web applications. Work spans frontend and backend, API development, enterprise architecture, database integration, Docker-based deployments, AI/LLM integration, troubleshooting production issues, mentoring junior developers, and collaborating cross-functionally and with customers.

Develop and maintain high-performance API-driven services and data-ingest pipelines using Java and Python. Build RESTful microservices, backend integrations, and cloud-native deployments. Collaborate across engineering teams, implement CI/CD and automated testing, troubleshoot distributed systems, and follow secure software development practices for cross-domain deployments.

Build and maintain scalable full-stack web applications using .NET, React, Next.js, and Azure. Responsibilities include feature delivery, API and microservices development, testing, code reviews, architecture, performance optimization, security, CI/CD support, cloud deployment, and production support. Senior engineers will mentor teammates and influence engineering standards, while early-career engineers receive mentorship and progressively greater ownership.

Design, develop, and operate globally distributed PlayStation Cloud Streaming infrastructure. Build Kubernetes controllers, operators, and lifecycle-management services; own features through deployment and production support; troubleshoot reliability and performance issues; write unit and integration tests; collaborate with SRE and platform teams; contribute to architecture, documentation, automation, and engineering standards; and use AI-assisted development tools responsibly.

Design and build Anthropic’s scalable search platform from scratch. Develop search systems, indexing mechanisms, and retrieval and ranking algorithms to improve accuracy and efficiency. Establish metrics and tooling to measure search quality, working closely with engineers and researchers. The role requires experience building complex distributed systems in production, strong search fundamentals, coding proficiency in Python, Go, Java, or similar languages, and hands-on experience with high-volume data processing architectures.

Build and maintain software integrations connecting Cribl’s stream-processing engine with systems such as Splunk, Elasticsearch, Kafka, and cloud storage platforms. Research third-party technologies, develop robust Node.js and TypeScript code, create automated and integration tests, collaborate across engineering and product teams, participate in code reviews and on-call support, and contribute to documentation and technical communities.

Staff Software Engineer responsible for shaping technical strategy and architecting automation systems for package creation, testing, and container image builds. The role involves developing production Go, AI- and LLM-powered developer tooling, quality frameworks, CLIs, and scalable services. Responsibilities include mentoring engineers, influencing roadmaps, improving reliability, and collaborating across distributed teams. Candidates need strong systems architecture, Linux, build systems, container ecosystem, and developer tooling experience, with familiarity in software supply chain security preferred.

Design, build, and own a reliable messaging and lifecycle platform across email, SMS, push, and in-app channels. Responsibilities include routing, templating, retries, deduplication, scheduling, delivery tracking, consent and preference enforcement, deliverability, experimentation hooks, audit trails, and access controls. Partner with data and machine-learning teams on event-triggered engagement while ensuring regulatory compliance, observability, and on-call reliability at millions of messages per month.

Leads architecture, design, development, integration, deployment, and operational support for complex full-stack applications built on the Mendix platform. Establishes technical standards, reviews code, mentors engineers, guides cross-functional initiatives, manages technical risks, supports Agile delivery, and leads incident response, performance optimization, monitoring, automation, and production readiness across multiple teams.

Design, scale, and optimize APIs, services, databases, and critical wagering, financial ledger, and regulatory systems. Lead complex technical initiatives, improve production performance and resilience, build integrations and migrations, manage monitoring, and mentor engineers. The role requires ownership of end-to-end delivery, on-call operations, scalable distributed systems, GraphQL, relational databases, Kubernetes, asynchronous processing, and highly accurate, auditable financial systems.

Design, develop, maintain, test, and troubleshoot Layer 2 networking, network management, monitoring, and security features using C, C++, and Python. The role involves writing specifications, architecting solutions, building automated tests, resolving customer and system-test issues, owning software delivery, providing technical leadership, and mentoring junior engineers.

Define scalable SaaS architecture and technical direction while remaining hands-on in software development. Design APIs, integrations, security, and modernization roadmaps; establish engineering standards and DevSecOps practices; write production code; lead architecture and code reviews; coordinate development and QA teams; and ensure secure, accessible, compliant platform delivery.

Design, develop, tune, and maintain large-scale OLTP database systems and data pipelines. Build PL/SQL, T-SQL, C, and shell-scripted solutions; provide Oracle and SQL Server DBA services, ensure efficient ETL and data warehouse delivery, support SDLC and automation, and create documentation. Hybrid role requiring Pittsburgh-area residence or relocation.

Seeking a senior software engineer to design and build Java/JEE enterprise applications using Spring, persistence frameworks (EJB/JPA/Hibernate), SOAP/REST web services, messaging (JMS), NoSQL databases, and cloud/distributed processing technologies. Contract position in Chicago requiring strong distributed architecture experience; Hadoop/Spark experience preferred.

Develop and maintain web applications using .NET technologies (MVC, ASP.NET) with C# and C++; work extensively with SQL Server 2000-2008 and Visual Studio 2010.

Develop and maintain web applications using the .NET stack. Work with .NET MVC, Visual Studio 2010, and SQL Server (2000-2008). Write server-side C# code and use ADO.NET/ASP.NET for data access and web functionality.

Maintain and enhance an existing full-stack application across data, application, and UI layers. Design, code, and deliver APIs; integrate with other systems and databases; develop unit and integration tests; build and deploy containers on AWS. Collaborate with lead developer and cross-functional teams. Onsite in Chantilly, VA; US citizenship and active TS/SCI with Polygraph required.

As a Mid Software Developer, you will develop secure cloud applications using Kubernetes and Docker, implement CI/CD pipelines, and apply DevSecOps practices while collaborating with clients and internal teams.

Design, develop, test, and maintain secure, scalable software for DoD/IC systems. Implement secure coding practices, perform code reviews and security testing, debug and enhance applications, build RESTful APIs and enterprise services, work across architectural layers, participate in Agile/DevSecOps processes, and support deployment, integration, and sustainment activities.

Design, develop, deploy, and maintain cloud-native applications and scalable data pipelines using Java (Spring Boot) and/or Python on AWS. Build and operate containerized microservices with Kubernetes, implement IaC (Terraform/CloudFormation), create CI/CD pipelines, and use monitoring/observability tools. Collaborate in Agile teams, participate in design and code reviews, and support secure, high-availability mission systems for DoD/IC programs.

Design, develop, test, integrate, and maintain enterprise Java applications for DoD/IC programs. Participate in Agile lifecycle activities, implement complex algorithms, optimize database access, troubleshoot production issues, perform code reviews, and support deployment and sustainment while maintaining technical documentation and collaborating with customers and product owners.