Full Stack

TEKsystems; United States; Hybrid; USD 83,000 - 96,000; Full time

Benefits offered by this job

Hybrid work model

Medical, dental & vision

401(k)

Job summary

CoBank is seeking a Senior Full Stack Software Engineer to drive a major cloud modernization effort, delivering scalable, enterprise-grade software. You will own end-to-end delivery, from design through production, while collaborating with engineers and business stakeholders.

The role emphasizes deep technical能力, live coding during interviews, and strong problem-solving in a highly regulated financial environment. Hybrid work in Greenwood Village is supported.

Qualifications

• Strong hands-on coding with Python, Node.js, TypeScript, React, SQL.
• Experience developing and consuming REST APIs.
• Strong understanding of software engineering fundamentals.
• Experience with AWS cloud services and containerization (Docker/Kubernetes).
• System design and architecture experience; agile development experience.

Responsibilities

• Build and maintain backend services, APIs, and microservices solutions.
• Design and develop cloud-native applications in AWS.
• Modernize legacy applications and integrate enterprise systems.
• Develop and consume RESTful APIs using Python and Node.js.
• Collaborate with architects, engineers, and stakeholders to deliver scalable solutions.
• Troubleshoot production issues and optimize performance.
• Participate in system design discussions and architectural decisions.

Skills

Python

Node.js

TypeScript

React

SQL

REST APIs

AWS

System design

Debugging

Live coding

Agile

Bachelor's degree

Education

Bachelor's Degree in Computer Science or related field

Tools

Docker

Kubernetes

Job description

Full Stack Software Engineer III (Senior)

Client: CoBank, ACB

Location: Greenwood Village, CO (Hybrid)

Duration: 6-Month Contract (Potential Contract-to-Hire)

Pay Rate: $60-$70/hr

Interview Process: 1 Onsite Interview (Technical + Live Coding)

About the Opportunity

CoBank is seeking a Senior Full Stack Software Engineer to help drive a large-scale cloud modernization initiative focused on migrating and modernizing critical financial systems. This role is ideal for a highly skilled software engineer who thrives in complex enterprise environments, enjoys solving difficult technical problems, and can independently design, build, and troubleshoot scalable applications.

The team is looking for a true engineer, not someone who has only surface-level exposure to the technology stack. Candidates must be able to code live, explain architectural decisions, troubleshoot production issues, and demonstrate end-to-end ownership of enterprise applications.

What You'll Do

• Build and maintain backend services, APIs, and microservices solutions
• Design and develop cloud-native applications in AWS
• Modernize legacy applications and integrate enterprise systems
• Develop and consume RESTful APIs using Python and Node.js
• Collaborate with architects, engineers, and business stakeholders to deliver scalable solutions
• Troubleshoot production issues and optimize application performance
• Participate in system design discussions and architectural decision-making
• Support cloud migration, platform modernization, and infrastructure optimization initiatives

Required Skills

• Strong hands-on coding experience with:
  • Python
  • Node.js
  • TypeScript
  • React
  • SQL
• Experience developing and consuming REST APIs
• Strong understanding of software engineering fundamentals
• Experience with AWS cloud services
• Experience with Docker and/or Kubernetes
• System design and architecture experience
• Strong debugging and troubleshooting skills
• Ability to explain technical decisions, tradeoffs, and design approaches
• Experience working in Agile development environments
• Bachelor's Degree in Computer Science or related field preferred

Preferred Qualifications

• Financial services or banking industry experience
• Experience modernizing legacy applications
• Terraform experience
• AWS certifications
• Data center migration experience
• Cloud optimization and performance tuning experience
• Experience working within highly regulated enterprise environments

Ideal Candidate

The ideal candidate is a Senior-level engineer who:

• Can write production-quality code without relying heavily on AI tools
• Demonstrates deep understanding of systems they have built and supported
• Excels in live coding exercises
• Understands API design, backend development, and system architecture
• Takes ownership of solutions from design through deployment
• Is curious, self-sufficient, and highly collaborative

Technical Environment

• Python
• FastAPI
• Node.js
• TypeScript
• React
• AWS
• REST APIs
• Microservices
• Docker/Kubernetes
• Terraform
• SQL

Interview Expectations

Candidates should be prepared to:

• Complete two live coding exercises
• Discuss system design and data flow from previous projects
• Demonstrate strong knowledge of programming fundamentals
• Explain technical decisions and architectural tradeoffs
• Walk through real-world examples of applications they have built and supported

Why Join?

• Opportunity to contribute to a major cloud transformation initiative
• Work on mission-critical financial systems
• Exposure to modern AWS cloud technologies
• Collaborative engineering culture with strong technical leadership
• Potential for long-term conversion opportunities
• Competitive compensation and benefits

If you're a hands-on engineer who enjoys building scalable systems, solving complex technical challenges, and delivering high-quality software in a modern cloud environment, we'd love to connect with you.

We reserve the right to pay above or below the posted wage based on factors unrelated to sex, race, or any other protected classification.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms.This temporary role may be eligible for the following:

• Medical, dental & vision
• 401(k)/Roth
• Insurance (Basic/Supplemental Life & AD&D)
• Short and long-term disability
• Health & Dependent Care Spending Accounts (HSA & DCFSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location

This is a Contract position based out of Greenwood Village, CO.

Pay and Benefits

The pay range for this position is $60.00 - $70.00/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors.

Eligibility requirements apply to some benefits and may depend on your jobclassification and length of employment. Benefits are subject to change and may besubject to specific elections, plan, or program terms. If eligible, the benefitsavailable for this temporary role may include the following:Medical, dental & visionCritical Illness, Accident, and Hospital401(k) Retirement Plan Pre-tax and Roth post-tax contributions availableLife Insurance (Voluntary Life & AD&D for the employee and dependents)Short and long-term disabilityHealth Spending Account (HSA)Transportation benefitsEmployee Assistance ProgramTime Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location

This is a Contract position based out of Greenwood Village, CO.

Application Deadline

This position is anticipated to close on Oct 30, 2026.

Workplace Type

This is a hybrid position in Greenwood Village,CO.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.