Backend Engineer

• Design, develop, and maintain robust, scalable, and high-performance object oriented code in our backend services.
• Develop public REST APIs using Java and internal gRPC APIs for inter-service and inter-system communication.
• Craft systems designs, lead design decisions, and drive alignment with other senior engineers.
• Write automated unit tests, integration tests, end-to-end tests, concurrency tests, load/performance tests.
• Analyze existing systems to identify bottlenecks, tech debt, and implement scalability, and stability improvements.
• Implement automation for testing, monitoring, healing, and scaling applications, continuous integration and deployment to reduce time to market.
• Collaborate with cross-functional teams, including product managers, designers, and other engineers, to define and implement new features.
• Conduct code reviews (comment, approve, seek revisions, merge), mentor junior and mid-level engineers, and actively promote engineering best practices.
• Dive deep and troubleshoot complex issues, devise fixes, author root cause analysis documents, and ensure lasting performance and reliability.
• Conduct objective and comparative analyses of competing technologies to advise the team of pros and cons of a technology solution.
• Maintain robust documentation (design docs, run books, change management docs, and readiness plans).
• Provide live-site support for production applications by monitoring systems, ensuring rapid incident resolution, and driving continuous improvement.
• Drive cross-team projects as a single-threaded-owner (STO) or tech lead, and actively unblock other engineers to make progress.

Senior Backend Engineer – AI Platform

• Contribute to the design and implementation of large-scale backend applications.
• Ensure code quality and support your teammates in maintaining strong engineering standards.
• Build reliable and fault-tolerant systems using message queues (RabbitMQ, Kafka, etc.) and implement best practices for scalability and resilience.
• Improve system scalability, reliability, and architectural clarity through thoughtful design and optimization.

Senior Software Engineer – Java

• Establish and maintain active monitoring of ANSI X12 277CA claim acknowledgment transactions to confirm payers have received submitted claims
• Implement a tracking and escalation process for claims that have not received 277CA acknowledgment within defined payer-specific windows
• Partner with the Front End Revenue Cycle Manager and Engineering to ensure clean claim submission and minimize rejection rates at the clearinghouse level
• Maintain working knowledge of clearinghouse workflows and claim status tracking capabilities
• Own the Athena Health AR aging report — ensuring it accurately reflects payment status and is actively worked on a defined cadence
• Establish AR follow-up workflows by payer and aging bucket, with defined SLAs and escalation paths for each tier
• Drive systematic reduction of the over-180-day AR balance through targeted payer follow-up, appeals, and collections activity
• Coordinate with Finance and the Manager/Director of Operational Effectiveness to ensure AR balances in Athena are accurately reflected in Zuora and NetSuite through a defined reconciliation process
• Identify and escalate AR balances where the insurance collection path has been exhausted and the employer guarantee of payment clause may apply
• Build and manage a structured denial work queue in Athena Health with assigned ownership, defined SLAs, and a clear resubmission process for each denial reason code
• Analyze denial trends by payer, reason code, and service line to identify root causes and implement upstream controls to prevent recurrence
• Prioritize denial resolution based on dollar value and timely filing window expiration — ensuring high-value, near-deadline denials are worked first
• Establish appeals workflows for payer-specific appeal processes, including supporting documentation requirements and submission timelines
• Monitor denial overturn rates by payer and reason code, and use outcomes data to refine appeal strategies
• Partner with the Front End Revenue Cycle Manager to address eligibility-driven denials at the root — denials reflecting coverage terminations that should have been caught upstream
• Manage the collections process for both claims-billed payer populations
• Establish payer-specific follow-up protocols including call queues, correspondence templates, and escalation timelines
• Coordinate with Client Success on employer group collections, including communication protocols and escalation to the employer guarantee of payment process when appropriate
• Monitor and report on cash collection rates by payer against contracted PMPM rates, identifying and investigating variances
• Recruit, onboard, and develop back-end RCM staff including AR follow-up specialists, denial management analysts, and collectors
• Establish competency requirements, training programs, and performance expectations for all back-end positions — with particular emphasis on experienced denial management and collections hires
• Conduct regular AR review sessions with staff to ensure accounts are being worked effectively and escalations are appropriate
• Build a culture of accountability, data-driven decision making, and continuous improvement within the back-end team

Senior Manager, Back End Revenue Cycle

• You will work on cross-functional teams to build scalable systems for our government -- designing, implementing, and delivering services that millions of Americans depend on.
• You care deeply about working on technology that improves people’s lives, but don’t think technology is always the answer.
• You are passionate about building large-scale systems that are inclusive, well-designed, fast, scalable, and secure, and you'll help set high standards for our teams in terms of simplicity, empathy, and accessibility.
• The Sr. Software Engineer role will be responsible for developing end to end systems for one of Nava's major government partners.
• The objective is to modernize an existing legacy enterprise platform to enable users to have more access to the programs and services that they need.
• This individual will be involved in everything, from strategy and planning through to post-production testing and support.

Software Engineer – Backend, Java

• Supporting Unum’s Total Leave teams through deep expertise in Fineos and custom Fineos development
• Researching and evaluating third-party and cloud technologies to drive efficient integrations and modernize solution capabilities
• Building and/or configuring software solutions within their business portfolio with little to no oversight
• Collaborating with their agile team members and leveraging unit testing and continuous integration
• Estimating work required to deliver software features
• Applying critical thinking skills to solution design and implementation for delivering business value
• Mentoring Software Engineers and Associate Software Engineers.

Software Engineer II – Java/J2EE

• Work with fellow Nava engineers to design, review, and build well-crafted software
• Collaborate with government partners and other contractors to architect, implement, and deploy new systems and improvements to existing systems
• Work in an agile manner to efficiently ship new features that meet user needs
• Create tools and processes to automate our development, testing, and production workflows
• Write and review technical documentation, performing code reviews
• Participate in an on-call rotation to support production systems and investigate issues when they occur
• Take part in hiring activities (e.g., submitting referrals, conducting interviews, and attending interview debriefs), as needed

Software Engineer, Senior – Python

• Design, develop, and execute analytical solutions using optimization, simulation, machine learning, generative AI, and statistical modeling.
• Construct predictive models to explain events, forecast behaviors, identify risk, or perform segmentation and clustering.
• Apply domain expertise to ensure models are practical, interpretable, and aligned with business needs.
• Evaluate alternative approaches and select appropriate modeling techniques for each use case.
• Integrate and transform large volumes of data from diverse sources to support analytics and experimentation.
• Build modeling-ready datasets using validation, reconciliation, feature engineering, and aggregation techniques.
• Write complex SQL queries involving multi-table joins, data exploration, and troubleshooting with minimal guidance.
• Develop logical data models combining internal and external datasets; lead conversations with external data providers when needed.
• Build automated analytics pipelines leveraging scripting, APIs, DevOps practices, and cloud platforms.
• Partner with engineering and IT teams to scale solutions, automate workflows, and integrate models into business processes.
• Develop and deliver clear, compelling visualizations tailored to various audiences.
• Interpret analytical results and communicate actionable insights that influence senior leaders and key business partners.

Senior Data Scientist – GenAI, Python, AWS, SQL

• This application developer position is for a project that uses Agile Software Development to build systems that support our client’s mission.
• This position will involve software development from the requirements gathering phase through coding and testing.
• Communicating status, including issues and risks to the team.
• Collaborating with team members to reach problem resolution.
• Learning new skill sets on the job in a fast-paced environment.

Mid-Level Full Stack Developer – React/Node.js

Staff Backend Engineer – AI, Agentic Systems

Software Engineer, Ruby

• Writing secure, correct, efficient, clear and supportable “production ready” code that meets internal standards and industry best practice.
• Enhance and extend our existing products, including device management, microservices, and WPF (Windows Presentation Foundation) applications to deliver seamless experiences to our customers.
• Design and build APIs that integrate with internal and external services and contribute to overall system functionality.
• Clarifying and communicating engineering requirements for new products, features, quality improvements, or design changes.
• Track progress, update stakeholders, communicate with peers and broader team through stand-ups, regular updates on work items.
• Implement industry-standard security practices to safeguard both customer and internal data.
• Ensure thorough testing of code, participate in code reviews, and proactively resolve bugs and performance bottlenecks.

Software Engineer, Backend

• Architect and deliver Drupal sites that are fully compliant with standards for design, accessibility, security, and performance
• Write automated tests that support the delivery of quality software
• Help define and support your application’s path to production
• Work with less experienced engineers to level up their skills
• Work directly with stakeholders and team members to set and manage expectations throughout the life of the project
• Operate within an agile development process

Software Engineer, Drupal

• Partner with Product and stakeholders to understand customer challenges and translate them into technical solutions
• Design, build, test, and deploy scalable, secure, and high-quality software solutions
• Use data to measure outcomes, validate assumptions, and drive engineering decisions
• Develop and maintain microservices and event-driven architectures
• Strengthen engineering practices including TDD, BDD, and CI/CD automation
• Support production systems through monitoring, incident response, and continuous improvement
• Identify performance bottlenecks and optimize systems for scalability and reliability
• Mentor peers and contribute to a culture of technical excellence and continuous learning
• Take ownership of work, operate independently, and deliver high-quality outcomes with minimal supervision

Senior Software Engineer, C#/.NET, AI

• Lead the design and implementation of scalable data platforms and pipelines using PySpark, Spark, and Python
• Drive adoption and best practices for Palantir Foundry (data pipelines, ontology, workflows, and operational applications)
• Architect and optimize high-performance data processing solutions for large-scale datasets
• Provide technical leadership and mentorship to data engineers, ensuring code quality and best practices
• Collaborate with cross-functional teams (business, analytics, data science) to translate requirements into scalable solutions
• Design robust data models, ETL/ELT frameworks, and data integration strategies
• Ensure data quality, governance, security, and compliance across enterprise data platforms
• Lead performance tuning, troubleshooting, and optimization of data pipelines
• Drive CI/CD implementation, code reviews, and release management
• Stay current with emerging data engineering technologies and recommend improvements

Data Engineer, Palantir, Spark, PySpark, Python

• This application developer position is for a project that performs Agile Software Development for systems that are used to support our client’s mission.
• This position will involve software development from the requirements gathering phase through coding and testing;
• communicating status including issues and risks to the team;
• collaborating with team members to reach problem resolution;
• learning new skill sets on the job in a fast-paced environment.

See all jobs on JobTailor