Top Software Engineer Jobs in Washington DC,

Deploy and customize Palantir Foundry and AIP solutions for enterprise clients. Responsibilities include conducting client workshops, building data pipelines and operational workflows with Python and TypeScript, solving complex technical problems, training end users, documenting solutions, and supporting project delivery. The role requires strong data engineering, communication, analytical, and problem-solving skills, along with recent Palantir experience and approximately 5% travel in Canada and the United States.

Provides technical leadership for enterprise-scale software supporting healthcare revenue cycle operations. Designs scalable applications, APIs, microservices, integrations, cloud-native solutions, and healthcare interoperability workflows using HL7, FHIR, and EDI/X12. Leads architecture, automation, security, performance, code reviews, troubleshooting, modernization, and technical strategy while collaborating with product, operations, analytics, infrastructure, and engineering teams.

Maintain and enhance mid-office technology, agent systems, scripts, applications, and automated quality-control systems. Gather requirements, translate them into technical specifications, write and deploy code, test and debug solutions, monitor system performance, provide support, document processes, and coordinate projects across departments and supplier partners. The role also recommends automation and process improvements, participates in code reviews, manages stakeholder communication, and supports operational efficiency within corporate travel systems.

Build and evolve OpenRouter’s public REST API, TypeScript and Python SDKs, Agent SDK, CLI, documentation, examples, and starter repositories. Own developer-facing product surfaces, improve API ergonomics and agent compatibility, and collaborate with DevRel, Product, and Platform teams to expand the developer ecosystem. The role requires strong API and SDK design judgment, autonomy, written communication, and experience shipping widely used developer products.

Build and support complex features across C#/.NET back-end services and React front ends. Responsibilities include technical design, API and data modeling, secure and tested coding, production troubleshooting, code reviews, mentoring, documentation, and improving engineering practices. Collaborate with Product, QA, DevOps, Technical Leads, and architecture teams while balancing delivery, maintainability, performance, accessibility, observability, and security.

Build and own a greenfield mobile application for iOS and Android, including architecture, features, security, accessibility, testing, telemetry, and App Store and Play Store releases. Use AI coding agents throughout development, establish CI/CD and rollout processes, solve secure fintech problems, and collaborate with Product, Design, and backend engineers. Mentor teammates and drive high-quality, reliable customer experiences.

Designs, develops, tests, and maintains scalable software applications, backend services, RESTful APIs, and distributed systems. Builds real-time and time-series data solutions using Go, Python, JavaScript, TypeScript, PostgreSQL, and TimescaleDB. Collaborates with product, design, QA, and DevOps teams in an Agile environment; performs code reviews, debugging, optimization, documentation, and production support. Uses cloud, containerization, CI/CD, and AI-assisted development tools to improve software quality and productivity.

Develop and deliver Power Apps, Power Automate, Power BI, data visualization, and Microsoft 365 solutions for an Army customer. Engage customers to define requirements, manage expectations, document technical solutions, conduct user acceptance testing, create training resources, and provide project status updates. Build model-driven and canvas applications, automate business processes, support data modeling and visualization, and maintain integrations across the Power Platform ecosystem.

Develop and operate highly available, large-scale distributed systems for Twilio SendGrid. Build Go-based microservices, manage AWS and Azure infrastructure with Terraform, improve observability and reliability, and optimize high-throughput email services. Responsibilities include architecture, coding, testing, technical debt reduction, infrastructure modernization, sprint planning, code reviews, and mentoring junior engineers.

Design, build, and maintain backend systems and services powering the Organizer platform. Own solutions from discovery through production, make architectural decisions, improve reliability and scalability, debug distributed systems, and collaborate across Product, Design, and Engineering. Mentor teammates, improve engineering practices, and strengthen testing, observability, documentation, deployment, and developer experience.