Senior Software Engineer

Description:
Hybrid 3 days onsite / 2 days remote in Rockville, MD

Our client is seeking a Senior Software Engineer to design, develop, and maintain data-intensive applications that ingest multiple data sources and surface insights through correlation and analysis. The role provides technical leadership, participates in architecture and strategy, and ensures code quality, performance, and reliability across the software development life cycle. The engineer will contribute to big data processing, ETL/ELT pipelines, data lake and warehouse patterns, and AWS-based infrastructure while mentoring teammates and supporting production systems in a hybrid work environment within the financial industry.

We can facilitate w2 and corp-to-corp consultants. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $70.00 to $80.00/hr. w2

Responsibilities:

• Design, develop, and maintain applications that ingest multiple data sources and surface insights through correlation and analysis with attention to code quality, performance, and best practices.
• Provide technical leadership and mentorship, including guidance on responsible use of AI-assisted development tools.
• Participate in architecture discussions and contribute to technical strategy, defining solutions and processes that improve efficiency with measurable impact.
• Identify and resolve technical risks and cross-team dependencies early, delivering team goals on time and to a high standard of quality.
• Support production systems, troubleshoot complex issues, and simplify code and infrastructure to reduce maintenance and migration costs.
• Apply computer science fundamentals and big data technologies to solve complex business problems.
• Use AI-assisted development tools effectively and review generated output for correctness, security, and quality.
• Build productive relationships with senior partners to remove barriers, align priorities, and collaborate in support of investor protection and market integrity.

Experience Requirements:

• Proficiency in Java, Python, and/or Node.js with strong object-oriented development, RESTful API design, and microservices architecture.
• Experience with big data frameworks such as Apache Spark, EMR (Presto, Trino), and Athena.
• Design and development of ETL/ELT pipelines for batch and streaming data ingestion, transformation, and loading.
• Data lake and warehouse patterns including partitioning, schema management, and file formats such as Parquet, ORC, and Avro, with SQL performance tuning for analytics.
• Workflow orchestration and scheduling using AWS Glue, Step Functions, or Airflow, including data quality, validation, and pipeline monitoring.
• Experience with relational databases such as PostgreSQL, MySQL, or Aurora, and NoSQL databases such as DynamoDB, MongoDB, or Cassandra.
• Strong knowledge of AWS services including EC2, S3, Lambda, RDS, ECS, API Gateway, CloudWatch/CloudTrail, IAM, VPC networking, and IaC with Terraform or CloudFormation.
• CI/CD pipelines, test automation and unit testing, and software security best practices.
• Nice to have: QuickSight, frontend frameworks such as React or Angular, GitLab CI/CD exposure, and AI development tools such as Amazon Q.

Education Requirements:
Bachelor's degree in Computer Science, Information Systems, or a related discipline with at least seven years of related experience, or an equivalent combination of education and work experience. Requires system design experience, cloud and data storage expertise, performance tuning and optimization, DevOps and CI/CD, test automation and unit testing, and software security.

Recruitment Transparency Notice

Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team ( , ) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group's use of these tools, including AI tools, as part of the application and hiring process.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.

W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
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When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

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About Eliassen Group:

Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients' capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.

Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.

Don't miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!