Lead Software Engineer​/Developer - Contingent

Public Trust Eligibility Required

This is a contingent position, meaning employment is dependent upon the successful award of the associated contract to Aretum and completion of any required background investigation or security clearance verification.

Aretum is a mission-driven organization committed to delivering innovative, technology-enabled solutions to our customers across defense, civilian, and homeland security sectors. Our teams work at the intersection of strategy, technology, and transformation, helping agencies solve their most critical challenges. We believe in investing in our people and creating a culture where collaboration, inclusion, and professional growth are at the forefront.

Aretum is seeking a Lead Software Engineer/Developer to serve as the hands-on technical lead of an Agile scrum team supporting a large-scale federal digital content management and systems integration program. This is a backend-focused engineering role. Python is the primary development language on the program, and you will lead the design and development of Python and Django services, REST APIs, and ETL pipelines that acquire, process, validate, and exchange digital content (images, video, audio, and textual materials) and its associated metadata between major enterprise systems.

Portions of the existing platform are implemented in Java, so working Java proficiency is required, but the majority of new development is expected to be in Python. Working as part of an integrated team alongside government developers, testers, user experience staff, and subject matter experts, you will own the technical approach for content selection services, metadata transformation, API integration, secure content transfer, and workflow administration.

You will guide a mid-level developer, coordinate with government technical leads, and remain accountable for the quality, maintainability, and security of the code your team delivers. This is a senior, designated lead position.

Due to the nature of our work as a federal consulting organization, employees may be expected to handle Controlled Unclassified Information (CUI) and must adhere to applicable safeguarding and compliance requirements.

• Serve as the technical lead of a scrum team working on a three-week sprint cadence as part of an integrated team with government developers, testers, and stakeholders, using standard Agile practices including continuous integration and story-point-based planning in JIRA.
• Lead the design, development, and unit testing of Python and Django backend services that support system-to-system content acquisition, ingest, quality review, inventory, and reporting functions.
• Design and build REST APIs in Python and Django to support content extract, transform, and load (ETL) operations, metadata exchange, reporting, and digital content management functions across integrated enterprise systems.
• Design and implement content identification and selection services, including business rules for selection (date ranges, status flags, ownership), inclusion and exclusion criteria, filtering logic, and manual, scheduled, and event-driven selection triggers.
• Build metadata management and transformation services, including field mapping, normalization, schema validation, quality and completeness checks, and reconciliation logic for metadata mismatches and validation failures.
• Implement API integration and content transfer capabilities, including source and target API connectivity, authentication and authorization, secure transport, retry and error-handling logic, transfer status monitoring, and end-to-end transaction logging and traceability.
• Design relational data models and tune database schemas, queries, and indexes in PostgreSQL to support content registries, workflow state, audit history, and reporting.
• Implement asynchronous and background processing for long-running content operations, including queueing, task orchestration, checkpointing, throttling, and idempotent retry behavior for large or batched transfers.
• Maintain and extend existing Java components where the platform requires it, applying the same standards of testability, readability, and maintainability used across the codebase.
• Integrate existing malware scanning, file integrity validation (checksum comparison), and content routing utility services into exchange workflows through their documented APIs, including quarantine handling and remediation paths.
• Design and implement workflow administration and governance capabilities, including workflow states, approvals, escalations, exception paths, role-based permissions, operational queues, and audit logging.
• Design and tune search and indexing capabilities using Solr and Elasticsearch to support discovery, reporting, and content management features.
• Build and operate services across AWS-based development, test, staging, and production environments, contributing to infrastructure-as-code in Terraform and to containerized deployment…