Top Senior Software Engineer Jobs

Develop high-performance backend applications and distributed-system infrastructure that collect and process large volumes of data. Own features from planning and design through development, testing, and delivery. Collaborate within Scrum/Agile teams and across internal stakeholders while writing clear, reusable, testable code. The role focuses on enterprise backend development, multithreading, network protocols, and security-focused software protecting enterprise data.

Lead architecture and delivery for Beckett’s software modernization, including NestJS and TypeScript microservices, Java and PHP legacy migrations, full-stack platforms, databases, AWS infrastructure, and distributed systems. Establish engineering standards for security, testing, observability, and operations. Mentor engineers, coordinate multi-quarter projects, manage cross-system risks, and guide responsible adoption of AI coding tools and LLM technologies.

Develop software using Python and Bash in Linux environments, working with NoSQL and SQL databases, containerization, CI/CD, orchestration, messaging, infrastructure as code, and source control. The role requires experience with MongoDB, Docker, Kubernetes, GitLab CI, Helm, RabbitMQ, Ansible, and Git, with PostgreSQL and Atlassian tools as desired skills. An active TS/SCI clearance with polygraph is mandatory.

Develop and implement software systems using Java, Python, and AWS services. Build automated functional and systems-level tests, collaborate with systems engineers in an agile environment, and prototype solutions in the AWS cloud. The role requires substantial software engineering experience and an active TS/SCI clearance with polygraph.

Develop software and data-processing workflows using Python and Java. Build Bash automation, design and operate Apache Airflow workflows, process large datasets with Apache Spark, and query SQL databases. Perform data wrangling, preprocessing, validation, anomaly detection, and work with structured, semi-structured, and unstructured data. Use Linux, Git, Jupyter Notebook, and related development tools. An active TS/SCI clearance with polygraph is required.

Develop and maintain software using Java and Angular. Build and deploy applications with GitLab, Docker, and Kubernetes or Marathon. Apply software engineering practices on programs of similar scope and complexity, with potential work involving Elasticsearch language analyzers and computer-assisted translation tools.

Develop software for high-performance computing, large-scale data analytics, and advanced information technology programs. Responsibilities include Java software engineering, requirements gathering, workflow documentation, problem solving, and collaboration using tools such as Confluence and JIRA. Preferred experience includes AWS, Maven, GitLab, MapReduce, JUnit, Python streaming, code coverage, and Linux. The role requires an active TS/SCI clearance with polygraph and seven years of software engineering experience.

Develop and support software engineering solutions for high-performance computing, large-scale data analytics, and information technology programs. Responsibilities include building Java and Angular applications, designing REST APIs, modernizing applications and databases, deploying containerized microservices, maintaining Kubernetes environments, implementing CI/CD and DevSecOps practices, and supporting Agile development and database operations. An active TS/SCI clearance with polygraph is required.

Develop software for high-performance computing, large-data analytics, and advanced information technology systems. The role requires seven years of software engineering experience on comparable programs and contracts, along with expertise in distributed processing, databases, or scientific computing tools such as Spark, MapReduce, SQL/NoSQL, Pandas, NumPy, or SciPy. An active TS/SCI clearance with polygraph is required.

Develops software using Java and Python with AWS services, implements automated functional and system-level tests, partners with systems engineers in an agile development process, and prototypes solutions in the AWS cloud. The role requires five years of comparable software engineering experience or equivalent experience substituted for a bachelor’s degree, plus an active TS/SCI clearance with polygraph.

Develop software for high-performance computing, large-scale data analytics, and advanced information technology programs. The role requires building solutions with Python, PySpark, and AWS services including Lambda, Glue, and DynamoDB. Candidates must have seven years of software engineering experience on comparable programs, or qualifying additional experience in place of a bachelor’s degree, and hold an active TS/SCI clearance with polygraph.

Develop and implement systems using Java or Python and AWS services. Build automated functional and system-level tests, collaborate with systems engineers within an Agile process, and prototype solutions in the AWS cloud. The role requires five years of comparable software engineering experience, or qualifying additional experience substituted for a bachelor's degree, and an active TS/SCI clearance with polygraph.

Lead and develop complex C++ software for defense systems including electronic warfare, secure communications, networking, radar warning, and electronic attack. Responsibilities include software design, coding, design evaluation, integration, testing, documentation, process improvement, technical leadership, customer presentations, and mentoring engineering teams. Work is performed fully onsite and requires the ability to obtain a DoD Secret Clearance.

Seeking a Senior Principal Software Engineer to lead software solutions for defense, focusing on Electronic Warfare and Secure Communications. Responsibilities include design, development, and team leadership, ensuring effective collaboration and communication across engineers and management.

Lead and contribute to complex C++ software development for defense systems involving electronic warfare, secure communications, radar warning, and electronic attack. Responsibilities include software design, coding, design evaluation, integration, testing, documentation, process improvement, technical leadership, mentoring, and customer-facing technical presentations. The role is fully onsite and requires the ability to obtain a DoD Secret clearance.

Develop and lead complex C++ software engineering efforts for defense systems, including electronic warfare, secure communications, radar warning, and electronic attack. Responsibilities include software design, coding, code review, integration, testing, documentation, process improvement, technical leadership, customer presentations, and mentoring engineering teams. The role requires full-time onsite collaboration and supports systems across air, land, sea, and space.

Seeking a Senior Principal Software Engineer to lead software development for defense systems. Responsibilities include technical leadership, software design, C++ coding, and collaborating with engineering teams to ensure mission capabilities for national security.

Design, develop, test, deploy, and operate cloud-based microservices and serverless applications on AWS. Build device-to-app pairing solutions, APIs, ETL pipelines, data structures, and Tableau dashboards. Monitor production systems, investigate incidents, support CI/CD and containerization, and ensure software quality. Collaborate through Agile development practices while mentoring junior engineers and contributing to technical standards.

Develop end-to-end software solutions from initial vision through production in an agile environment. Design, modify, implement, and enhance applications using front-end and back-end technologies. Analyze system architecture, identify improvements, resolve complex workflow problems, and collaborate with cross-functional teams. The role may involve client requirements, automation optimization, source-code development, testing, and maintenance while supporting systems requiring Secret clearance eligibility.

Designs, develops, and maintains cloud software for space ground systems and operations. Responsibilities include building AWS applications, RESTful APIs, event-driven systems, distributed architectures, CI/CD pipelines, automated testing, and model-based software documentation. The engineer also presents technical recommendations, supports reviews, manages tasking, and mentors team members. The position is onsite in Redondo Beach, California, with 10% travel and potential progression between Level 3 and Level 4.

Build and operate high-throughput backend services powering AI agent orchestration, connector integrations, and real-time data pipelines. Design scalable core platform services, collaborate with ML, frontend, and product teams, implement infrastructure-as-code and CI/CD, and mentor junior engineers to deliver reliable, AI-powered features.

Build and own distributed runtime infrastructure for Moveworks’ AI agents, including agent orchestration, long-running session management, event-driven messaging, structured concurrency, observability, caching, and state layers. Design reliable, scalable backend systems supporting multi-step workflows, tool calls, human interactions, crash recovery, real-time streaming, and low-latency responses for enterprise users.

Build and own distributed runtime infrastructure for Moveworks AI agents, including orchestration state machines, session leasing and recovery, event-driven messaging, asynchronous concurrency, observability, caching, and state layers. Design production backend systems that handle high-scale real-time traffic while ensuring correctness, low latency, fault tolerance, traceability, and graceful recovery across long-running agent workflows.

Build and own distributed runtime infrastructure for AI agents, including orchestration state machines, session management, event-driven pipelines, structured concurrency, observability, caching, and state layers. Design highly reliable, low-latency backend systems using Python or Go, DynamoDB, SQS, Kafka, Redis, gRPC, and OpenTelemetry. Handle long-running workflows, leases, checkpointing, concurrency, streaming, tracing, and production-scale traffic.

Build and own distributed runtime infrastructure for AI agents, including orchestration engines, long-running session management, event-driven pipelines, concurrency systems, observability, caching, and state layers. Design highly reliable, low-latency backend systems using Python or Go, DynamoDB, SQS, Kafka, Redis, gRPC, and OpenTelemetry. Handle distributed coordination, crash recovery, streaming, tracing, and production traffic at scale.