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Sr Backend Developer - Cap Markets Tech Transformation

Apex SystemsChicago, IL🇺🇸United StatesPosted 10 Aug 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Job#: 3045056

Job Description:
Sr Backend Developer - Cap Markets Tech Transformation

Location: Chicago, Illinois (Remote)

Role Overview

We are seeking an experienced Senior Backend Lead Developer to support a large-scale technology transformation program. This is a senior, hands-on technical leadership role responsible for providing direction across backend engineering, driving architectural excellence, and guiding development teams building high-performance, scalable, API-driven platforms. The ideal candidate will act as the lead backend engineer across multiple microservices within a capital markets and securitization application domain.

Key Responsibilities
  • Act as the lead backend engineer across multiple microservices, translating business and technical requirements into standardized designs.
  • Define and promote reusable components, libraries, and architectural patterns to ensure consistency in code design and quality.
  • Actively develop features, build proofs of concept (POCs) for new technologies, and guide feature teams to adopt approved patterns.
  • Take hands-on involvement with DevOps practices, including CI/CD pipeline management, backend deployment processes, and maintenance.
  • Enforce best practices related to code quality, security, exception handling, and performance, leading rigorous code reviews and mentoring developers.
  • Work closely with product owners, architects, and other teams to refine requirements and ensure technical solutions align with product goals.
  • Oversee the implementation and maintenance of CI/CD pipelines using tools like Jenkins and Helios.
Required Qualifications

Experience:
  • 10+ years of backend engineering experience using .NET and C# in enterprise environments.
  • Proven ability to lead backend development teams within complex, multi-stream transformation programs.
  • Strong expertise designing and building scalable RESTful APIs and microservices using Swagger/OpenAPI.
  • Deep experience with Dapper ORM, SQL Server, and structured data formats including JSON and XML.
  • Hands-on experience with messaging and event-driven architectures (e.g., Solace, SignalR).
  • Experience implementing distributed caching platforms such as Apache Ignite or MemSQL.
  • Practical experience designing and maintaining CI/CD pipelines using Jenkins, Helios, and Git-based workflows.
  • Advanced proficiency in unit testing, mocking, and Test-Driven Development (TDD) practices using xUnit or NUnit.
  • Strong communication skills with the ability to present architecture decisions and mentor engineers.

Education:
  • Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience.
Preferred Qualifications
  • Prior experience in financial services or capital markets, including trading, risk, clearing, or settlement platforms.
  • Exposure to front-end frameworks such as React or Angular to support collaboration with full-stack teams.
Work Location & Time Zones

This role is remote, but candidates are expected to work during Eastern or Central Time (EST/CST) hours for operational efficiency and coordination with project teams.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Everforth Apex uses a virtual recruiter as part of the application process. Click for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at

Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at or . Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.

Skills

Microservices
SQL
SQL Server
TDD
Angular
Apache
C#
.NET
Git
Jenkins
React

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