Top Application Engineer Jobs in Boston, MA

Leads the technical direction, architecture, development, modernization, and production readiness of secure payment applications. Partners with product, architecture, engineering, and business teams to deliver cloud-native microservices and distributed systems. Provides hands-on development for complex capabilities, establishes engineering standards, mentors engineers, guides technical decisions, and applies cloud and AI-enabled practices to improve quality, reliability, security, and delivery speed.

Develop and maintain web application front-ends using HTML5, CSS, JavaScript and jQuery; implement interactive analytics and charting (D3, Highcharts); work with JS frameworks (Angular, Ember); perform basic web/application server administration (Apache, Tomcat); contribute to Python/Django/Jinja templated components; prioritize usability, communication, and analytical UI features. Contract role (6+ months).

Design, configure, implement, and administer Atlassian cloud applications (Jira Cloud, JSM, JPD, Assets, Confluence). Gather requirements, build workflows and automation, integrate via APIs, perform testing, provide support and training, and lead continuous improvement efforts with stakeholders to optimize project management and IT service delivery.

Build, maintain, and ship the Jan cross-platform desktop app using Tauri. Work full-stack (React/Node.js frontend, Rust native), own packaging, builds, installers, auto-update, code signing, and release pipelines, and provide first-class Linux support. Integrate local model runtimes and use agent-native workflows to iterate quickly while ensuring reliability and performance.

Design, build, and modernize WPF-based analytics desktop applications using C#/.NET. Implement full-stack features (UI, logic, data), integrate with cloud data platforms and APIs, improve performance and maintainability, and support active customers while collaborating with Product, Data, and Services teams.

Provides technical leadership while developing Java applications and RESTful APIs. Designs scalable architectures, supports complex initiatives, modernizes legacy systems, and leads migrations to cloud and data center environments. Guides solution strategy, testing, integration, documentation, and operational improvements. Mentors engineers, promotes best practices, evaluates emerging technologies such as Claude AI, and collaborates across engineering, product, architecture, and business teams.

The Mobile Application Engineer will develop and architect mobile applications, influence mobile strategies, and ensure security and compliance across various platforms.

Provide technical leadership for large-scale, regulatory financial-services applications: design, develop, modernize, automate, and support enterprise applications; promote Agile/DevOps; ensure quality, reliability, and delivery; mentor engineers; and partner with architects and product managers to meet business requirements.

Design, customize, and deploy robotic applications for industrial use. Debug application-level issues, optimize motion planning and perception, develop task workflows and user tools, conduct onsite testing, provide technical support and training, and document workflows and user guides.

Collaborates with senior engineers to maintain and enhance secure, scalable software. Responsibilities include implementing features, troubleshooting issues, documenting technical designs, applying modern SDLC and CI/CD practices, automating testing and infrastructure, researching solutions, and partnering with architects and cross-functional teams. The role requires object-oriented programming knowledge, web services and database familiarity, JavaScript framework experience, Agile development experience, and strong communication skills.

Design, implement, and test robotics algorithms for medical and service robotics applications, focusing on navigation, motion planning, and perception.

Design, implement, and test robotics algorithms in C++ and Python for medical and service robotics applications focusing on navigation and motion planning.

The Web Application Engineer will be responsible for enhancing the company's eSupport and Community web applications, collaborating with various teams to gather requirements, and ensuring high-quality web development.

Build and ship Android and/or iOS features for BJAK's AI Neobank app. Own end-to-end mobile experiences—from product problem through releases—working with backend, design, product and AI teams. Improve app quality using analytics, crash reports, and user feedback, and raise standards for UX, reliability and performance.

Support and stabilize production trading platforms by monitoring systems, investigating incidents, executing remediation, improving runbooks and automation, and planning client implementations and deployments for bridging, aggregation, and reporting integrations.

The Integration Engineer will design, develop, and maintain integrations between systems, ensuring data flow, integrity, and performance in a hybrid, collaborative environment.

Leads technical direction and multi-year strategy for Netflix’s Application Networking organization. Partners with engineering leads to shape architecture for globally scaled distributed systems, service-to-service communication, external traffic, identity, security, and access enforcement. The role addresses complex, ambiguous technical challenges, influences stakeholders across business units, contributes to open-source or industry standards, develops senior engineers, and communicates with engineering, product, and executive audiences.

Maintain and modernize a legacy C#/.NET codebase, design and build new cloud-based applications, write front- and back-end code, add unit/integration tests, review code, troubleshoot issues, and collaborate across teams to improve architecture and reliability.

Leads DevOps and application operations for critical enterprise applications. Responsibilities include production reliability, SLO and SLA management, incident response, release and deployment operations, observability, automation, capacity planning, disaster recovery, security compliance, performance optimization, stakeholder service reviews, and mentoring AppOps engineers. The role supports 24x7 reliability through on-call participation and cross-functional collaboration with engineering, cloud, security, and compliance teams.

Own deployment, tuning, and operations of a containerized workspace streaming platform on Kubernetes: build and maintain container and VM images, manage clusters and cloud resources, run networking and ingress (TLS/cert-manager), build CI/CD for image and chart deployments, monitor and troubleshoot platform health, and partner with Security/IT for identity, logging, and compliance integration.

Lead and stabilize business-critical production applications by resolving incidents, driving root-cause analysis, executing DR and deployment plans, updating runbooks, automating monitoring, and collaborating with development and audit teams to reduce risk and improve resiliency.

The Senior Software Engineer will design and develop IMS TM and DB-compatible technologies, providing architectural leadership and mentoring while optimizing mission-critical applications for modern environments.

Designs and develops enterprise-scale applications, collaborating with business analysts and system architects. Implements web- and API-based solutions using Java, .NET, AngularJS, JavaScript, SOAP/REST, MuleSoft, and low-code/no-code BPMN tools (Appian, Salesforce, Nintex) with SQL Server in agile/hybrid environments.

Implement, configure, and provide L3 support for Fircosoft/Firco Continuity sanctions screening across payments (SWIFT, Wire, ACH, real-time). Configure screening rules and utilities, manage integrations (MQ/MQFTE, Kafka, file transfers, TWS), develop SQL and Unix/Linux scripts, and support upgrades, deployments, CI/CD, monitoring, incident management, RCA, and performance optimization.

Design and build full-stack applications that expose AI/ML insights. Develop backend services in Python, RESTful APIs, and containerized microservices. Build high-performance front-end interfaces with React/Vue/Angular. Implement cloud-native solutions on Google Cloud or Azure, manage relational and NoSQL databases, apply testing and CI/CD, and participate in Agile development and architecture sessions.