Senior Software Engineer (Backend) - Remote

ICF•Reston, VA

2d•Remote

About The Position

ICF is looking for an enthusiastic Senior Software Engineer to join our team and help with development and maintenance of our backend APIs that support a significant program with the Centers for Medicare & Medicaid Services (CMS). If you are Senior Software Engineer interested in applying your expertise in software engineering in a consulting environment, then this may be the role for you. This position requires that the job be performed in the United States. ICF monitors employee work locations and blocks access from foreign locations/foreign IP addresses, and also prohibits personal VPN connections. Our core work hours are 10am - 4pm Eastern Time with the option to start earlier or work later depending on your time zone. The client is on the east coast and may sometimes start a meeting earlier than 10:00 which may require your participation. Travel for a conference or to another ICF location for collaboration may be required once a year.

Requirements

Bachelor's Degree
5+ years of professional software development experience
Candidate must be able to obtain and maintain a Federal Public Trust
Candidate must reside in the U.S., be authorized to work in the U.S., and all work must be performed in the U.S.
Candidate must have lived in the U.S. for three (3) full years out of the last five (5) years

Nice To Haves

TypeScript / JavaScript — backend services, async patterns, Node.js runtime
Python 3 — data engineering, ETL pipelines, type hints, abstract base classes
SQL — analytical queries, schema design, query optimization across PostgreSQL and MySQL
NestJS Framework — modules, controllers, services, dependency injection, guards, middleware, decorators
RESTful API design — resource modeling, HTTP semantics, versioning
ETL pipeline design — extract → transform → validate → publish lifecycle; idempotency patterns; runtime business rule validation
S3 — file storage, S3A filesystem integration with Spark, lifecycle conventions
Docker — multi-stage Dockerfiles, docker-compose for local dev clusters, environment parity with production runtimes
ORM proficiency — TypeORM (entity modeling, migrations, query builder, transactions)
Authentication & authorization — JWT/Bearer tokens and policy-based authz with role/claim evaluation
Apache Spark (PySpark) — distributed compute, DataFrame I/O, Spark SQL, EMR Serverless job configuration and submission
Pandas / NumPy — in-process data transformation, vectorized operations, statistical aggregations
Vitest and Jest — unit and integration testing, high coverage discipline (95%+ thresholds)
pytest — Python unit and integration testing; mocking AWS services
Structured logging — contextual request/job logging
APM tooling — Datadog familiarity a plus
Dependency security — Snyk, CVE remediation, automated dependency updates (Dependabot)
PostgreSQL — schema design, JDBC integration, query optimization
MySQL / Aurora MySQL — schema design, indexing, migrations
Amazon Redshift — analytical SQL, serverless cluster connectivity, credential management
AWS CodeBuild — CI/CD pipeline authoring, multi-step buildspecs, secret injection
EMR Serverless — PySpark job submission, monitoring, custom Python
SSM Parameter Store — runtime secret and config injection
TypeScript linting — ESLint 9, TypeScript ESLint, Prettier, Husky + lint-staged pre-commit hooks
Python linting — Ruff (lint + format), isort, pip-compile for deterministic dependency pinning
Federal Government contracting work experience
Prior experience in consulting or healthcare highly preferred
Good leadership and team-working skills.
Highly effective analytical, problem-solving, and decision-making capabilities.
Excellent communication and interpersonal skills to interface effectively at all levels of the business.
Organized, detailed oriented and able to prioritize and multi-task.
Ability to self-organize, prioritize and conduct work on multiple projects under tight deadlines in a fast-paced environment.