Software Engineers/Data Scientists

REQUIRED: Active TS/SCI with Full Scope Polygraph
LOCATION: Full time, onsite in Chantilly, VA

Ardent Principles is seeking highly skilled Software Engineers/Data Scientists to design, build, and operate large‑scale, mission‑critical data and application systems. The ideal candidate will be developing modern React/TypeScript front‑end applications, building Node.js backend services, and engineering high‑performance Elasticsearch clusters capable of handling massive datasets.

Who We Are:
We offer advanced services in data science, data engineering, software engineering, AI solutions, cybersecurity, staff augmentation, and IT program management.

Passionate Integrity, Driven by Excellence
Ardent Principles offers a competitive salary range and a comprehensive, industry‑leading benefits package designed to support long‑term stability and employee well‑being. We provide more than a position-we offer a workplace committed to excellence, integrity, and mission‑focused impact. Our mission is to act as a bridge between satisfied clients and fulfilled employees, ensuring that your job and well-being are our top priorities because your satisfaction leads to the success of our clients.

Join us as we continue building the future of secure, high‑impact solutions.

Key Responsibilities

In this challenging yet rewarding role, you are an integral part of what brings our Company's mission to life. You must have the following required skills, certifications and demonstrated experience in and/or with:

• Building and maintaining scalable front-end applications using React and TypeScript, with a solid understanding of component-based architecture, state management, and hooks
• Managing application state using MobX or other state management libraries or solutions within a TypeScript/React environment.
• Understanding Node.js; to include competency in developing backend services and APIs using Node.js, with the ability to switch to backend work and integrate front-end with server-side code as required.
• Elasticsearch; to include designing search functionalities, analytics, including querying, indexing, mappings, analyzers, tokenization, bulk indexing, search DSL, aggregations, reindexing, snapshots, ILM, performance tuning, working with large datasets. Managing at scale: cluster topology, shard sizing, replica strategy, resource limits, JVM tuning, recovery practices. Shard sizing strategy, reallocation, recovery tuning, snapshot impact, and performing rolling upgrades.
• Database Management with RDS (Relational Database Service); to include proficiency in working with relational databases, specifically with Amazon RDS or similar services, including writing SQL queries, optimizing performance, and integrating with backend applications.
• Version control systems (such as Git) and familiarity with continuous integration/continuous deployment (CI/CD) pipelines to efficiently manage codebase and deployments.
• Building and operating ETL (extract, transform, load) pipelines for very large datasets (terabytes to petabytes), with production-grade reliability.
• TypeScript/JavaScript for backend development (Node.js frameworks like Express, async/await, Promises) and familiarity with the Elasticsearch JS/TS client.
• Scripting and programming, with strong skills in Python, Bash, or Go for automation, tooling, data processing and runbook scripting.
• SQL and experience optimizing complex queries where relevant to upstream data modeling.
• Ability to evaluate trade-offs between latency, throughput and infrastructure cost, including index retention and storage tiers (Cost-aware mindset).
• Extensive Terraform experience; authoring modules, composition patterns, managing remote state backends and locks (S3), workspaces, provider/version locking, and writing idempotent infrastructure.
• AWS (Amazon Web Service) networking mastery; to include VPC design, subnets, route tables, IGW, NAT, Transit Gateway, VPC Peering, PrivateLink, VPC endpoints, security groups, NACLs, Direct Connect, VPN and load balancers (NLB/ALB).
• CI/CD and automation: Git-based workflows, Terraform pipelines (GitHub Actions, GitLab CI, Jenkins).
• TLS, encryption at rest, IAM (identity and access management) policies or roles, secrets management (Vault, AWS Secrets Manager), network segmentation, audit logging and compliance controls.
• Performance tuning: JVM heap sizing, GC tuning, file descriptors/ulimits, OS settings (vm.max_map_count), thread pools, merge and refresh tuning, and bulk/ingest optimizations.
• Disaster recovery and capacity planning for large data sets, including tested backup/restore procedures and runbooks.
• Problem-solving, performance tuning capabilities for ETL jobs, Node.js backends, collaboration skills, with the ability to work across all layers of the stack, collaborate effectively with cross-functional teams, analytics and SRE teams, ability to adapt to evolving project requirements.
• Security and cost optimization patterns (right-sizing, reserved instances/savings plans, tiered storage).
• Strong troubleshooting skills using ES APIs (_cluster/health, _cat, _nodes, _segments, _recovery, _stats), logs, JVM GC analysis, thread-pool diagnostics, and OS-level metrics.

Highly Desired Qualifications

Other skills and demonstrated experiences that are highly desired but not mandatory to perform the work, include:

• Apache NiFi for flow-based ingestion and provenance-driven data movement.
• Schema evolution strategies, mapping conflicts, versioning, and automated reindex pipelines.
• Data modeling, metadata management and catalog tools.
• Strong communication skills and working cross-functionally with product, analytics and SRE teams.
• Working across all layers of the stack when needed, demonstrate problem-solving skills, collaborate effectively with cross-functional teams, and adapt to evolving project requirements.
• Running production-critical distributed systems.

What We Offer You

• Highly Competitive Salary: Recognizing and rewarding your expertise and contributions.
• Generous Paid Time Off: Providing ample time for rest, relaxation, and personal pursuits.
• Dedicated Training Budget: Supporting continuous learning and professional development.
• 100% Employer-Covered Family Vision, Dental, and Health Insurance: Ensuring comprehensive health coverage for you and your family.
• 100% Employer-Covered Life and Disability Insurance: Offering financial security and peace of mind.
• 401(k) Plan with a 6% Employer Match: Helping you plan and save for a secure retirement, with 100% vesting from day one.
• 11 Paid Government Holidays: Observing national holidays to ensure time off with family and friends.
• Spot Bonuses for Exceptional Performance: Rewarding outstanding contributions and achievements.

SCHEDULE:

This is a full-time position with consultants expected to be available and working onsite in Chantilly, VA during core hours.

Ready to take the next step in your career? Join us and be part of a team dedicated to driving positive change through technology. Apply now with our easy 3-minute, mobile-friendly initial application process. Your future starts here!

About Ardent Principles, Inc

At Ardent Principles, we're more than just a technology company - we're a team of innovators, problem-solvers, and collaborators dedicated to pushing the boundaries of what's possible. Our mission is to empower organizations with transformative IT solutions and program management services, while our values of integrity, excellence, and teamwork guide everything we do. We foster a culture of open communication, where every voice is heard, and every idea is valued. Join us and be part of a company where your contributions truly make a difference.