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Posted August 01, 2026

Lead Software Engineer

Eliassen Group
Chicago, IL, US Full Time

Job Description

Job Description
Description:

Hybrid At least 2 days per week in office in Chicago, IL

Our client seeks a Lead Software Engineer to drive the design, delivery, and technical strategy for cloud-native data platforms within a Customer Data Platform team. The role will define engineering standards, influence long-term platform direction, mentor engineers, and ensure platforms scale securely and reliably. The position requires hands-on work across Java, Python, Spark, TypeScript, Angular, AWS services, and event-driven architectures, partnering with product and architecture stakeholders to align with strategic objectives.

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: $74.00 to $84.00/hr. w2

Responsibilities:
  • Deliver large-scale cloud-native data platforms on AWS leveraging REST APIs, microservices, and event-driven applications for scalability and resilience.
  • Work hands-on across Java, Python, Spark, TypeScript, JavaScript, Angular, AWS services, event-driven architectures, and SQL/NoSQL databases.
  • Lead technical initiatives focused on performance, scalability, reliability, security, governance, and cost efficiency.
  • Partner with global engineering, product management, architecture, and business stakeholders to align solutions with objectives.
  • Own the software development lifecycle including requirements, design, development, deployment, observability, and documentation.
  • Mentor and guide junior engineers to foster innovation, accountability, collaboration, and technical excellence.
Experience Requirements:
  • 8-10 years of software engineering with expertise in scalable UX-driven applications and distributed systems.
  • Proven experience with REST APIs, microservices, Kubernetes, and distributed systems.
  • Experience in Data Warehousing, Data Lakes, Delta Lake architecture, and modern big data ecosystem designs.
  • Hands-on expertise in Python, Java, and Angular with object-oriented and functional programming.
  • Expertise in PySpark and Apache Spark for high-performance distributed data processing.
  • Depth in microservices with Kubernetes for eventing and serving.
  • Extensive AWS experience including S3, Lambda, API Gateway, and EventBridge.
  • Experience with messaging and event-driven technologies such as Kafka, SNS, and SQS, and databases including PostgreSQL, SQL Server, Aurora, DynamoDB, MongoDB, and Redis.
  • Hands-on with Terraform and Ansible for Infrastructure as Code.
  • Strong CI/CD and DevOps practices using Jenkins, GitHub/GitLab, Bitbucket, GoCD, and automated pipelines.
  • Robust testing strategies including unit, integration, and regression testing.
  • Strong critical thinking and analytical skills for diagnosing and solving complex problems.
  • Exposure to Generative AI, including LLMs, RAG architectures, and Agentic AI systems.
  • Nice to have: PySpark with Databricks, Azure and/or GCP experience, and experience building privacy-safe data platforms or CDPs and MarTech environments.
Education Requirements:
  • B.E./B.Tech/M.Tech/MCA in Computer Science, Information Technology, or a related field.
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 ([email protected], 781-808-2924) 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.If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:

· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.

If you have any indication of fraudulent activity, please contact [email protected].

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!

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