Top Software Engineer Jobs in Washington DC,

The Senior Full-Stack Software Engineer will design and develop software products, collaborate with data scientists, and instill development best practices.

Lead client engagements and design cloud-native enterprise architectures. Define data schemas, produce technical proposals, mentor teams, participate in development, support pre-sales, and ensure solutions are delivered to production using best practices.

Build Nitra Business Banking backend infrastructure, including account opening, payments, ledgers, transaction processing, reconciliation, APIs, and financial integrations. Design reliable money movement across ACH, wires, RTP, and FedNow while ensuring auditability and financial correctness. Partner with sponsor banks and processors, make architecture decisions, document systems, identify risks, and mentor engineers. The role also integrates banking capabilities with cards, BillPay, expense management, accounting, and healthcare payment products.

The z/OS Mainframe Programmer will design and implement solutions for legacy mainframe applications, focusing on IRS tax processing and system integration while ensuring compliance and system performance.

Lead architecture and implementation of complex Salesforce solutions with emphasis on CPQ, Sales Cloud, Experience Cloud, integrations, automation (declarative and Apex), reporting, and technical leadership for development teams and stakeholders.

Design and develop an enterprise-grade proxy solution using Rust, focusing on performance optimization, feature development, and collaboration with cross-functional teams.

Develop and maintain responsive full-stack applications, including front-end architecture and server-side systems. Write efficient JavaScript and TypeScript using React and Node.js, test and debug code, manage databases, and participate throughout the application lifecycle. Collaborate with cross-functional teams, troubleshoot issues, document technical solutions, and stay current with technology trends. The role requires cloud experience, Git proficiency, Linux/Unix skills, and eligibility for security and agency clearances.

Full Stack Developer responsible for frontend and backend development using React and server-side frameworks (Elixir, Ruby, Node, Python). Must be expert in mobile development, work with modern frontend tooling, and contribute to product conception, design, and production for a Washington, DC-based team.

Produce UML diagrams and design functional/non-functional specifications. Work on migration projects, handle Java messaging (JMS) and IBM MQ integrations, and perform ~20% infrastructure operational tasks. Basic knowledge of capital markets required; Tibco/EMS experience is a plus.

Design, build, test, and maintain front-end and server-side applications using JavaScript/TypeScript (React, Node.js). Ensure responsive, high-quality code, debug issues, work across cloud environments and databases, and produce technical documentation.