Top 62 Proprietary Software Developer Jobs in Chicago, IL

Full-stack Engineer
Ocra —Chicago, IL
- $130,000 - $160,000 a year
- Full-time
- Remote
- System design
- Mid-level
- SQL
- Health insurance
- Dental insurance
Quick Apply
Associate Engineer 2026 - immediate start
Chicago Trading Company (CTC) —Chicago, IL
- $175,000 a year
- Urgently hiring
- Hybrid work
- Computer science
- Computer Science
- Office
- Paid parental leave
- Parental leave
Python Software Engineer
Old Mission —Chicago, IL
- $150,000 - $225,000 a year
- Full-time
- Computer science
- Computer Science
- Mid-level
- Disability insurance
- Health insurance
Software Engineer
Capacity Systems —Chicago, IL
- Mid-level
- AWS
- Health insurance
Software Engineer, Fullstack
Treehouse —Chicago, IL
- $125,000 - $160,000 a year
- Full-time
- Azure
- Computer Science
- Mid-level
- Health insurance
- Dental insurance
Software Engineer
Simplex Trading —Chicago, IL
- $125,000 - $200,000 a year
- Full-time
- Computer science
- Computer Science
- Engineering
- Health insurance
- Dental insurance
Python Developer (Airlines)
Appex Innovation —Chicago, IL
- Contract
- Windows
- Linux
- Senior level
Full Stack Agentic Developer
Charles River Associates —Chicago, IL
- $150,000 - $230,000 a year
- 6 years
- Software troubleshooting
- Analysis skills
- Commuter assistance
- Paid parental leave
Fullstack Developer
UNDUIT WIRELESS —Chicago, IL
- Full-time
- Computer Science
- Office
- Analysis skills
Full Stack Developer
Edgehog Trading —Chicago, IL
- $150,000 - $175,000 a year
- Full-time
- Computer Science
- System design
- Mid-level
- Commuter assistance
- Health insurance
Full-Stack Cloud Engineer
PRICE WATERHOUSE COOPERS —Chicago, IL
- $77,000 - $202,000 a year
- Azure
- Mid-level
- AWS
- Paid holidays
- Health insurance
Staff Software Engineer
Epsilon —Chicago, IL
- $105,000 - $195,000 a year
- Email
- Hybrid work
- Azure
- Computer Science
- System design
- Commuter assistance
- Paid holidays
Software Engineer
Epsilon —Chicago, IL
- $73,500 - $136,500 a year
- Email
- Hybrid work
- Computer science
- Azure
- Computer Science
- Commuter assistance
- Paid holidays
Senior Software Engineer
Epsilon —Chicago, IL
- $88,900 - $165,100 a year
- Email
- Hybrid work
- Computer science
- 6 years
- Computer Science
- Commuter assistance
- Paid holidays
Staff/Senior Software Engineer (Python/PHP)
Ontrac Solutions —Chicago, IL
- Full-time
- Remote
- Computer Science
- Mentoring
- Senior level
Quick Apply
C++ Developer - Trading Platforms
ThinkMarkets —Chicago, IL
- Computer Science
- System design
- Mid-level
Senior Cloud Engineer (Remote)
DV Trading —Chicago, IL
- Remote
- 5 years
- AWS
- Mentoring
Quick Apply
Lead Software Engineer
Epsilon —Chicago, IL
- $98,000 - $182,000 a year
- Email
- Hybrid work
- Azure
- Computer Science
- 8 years
- Commuter assistance
- Paid holidays
Principal Software Engineer, AI (Web & Data)
Okta —Chicago, IL
- $152,000 - $209,000 a year
- Hybrid work
- System design
- Databases
- AWS
Quick Apply
Senior Full Stack Developer
GUARANTEE TRUST LIFE INS CO —Glenview, IL
- $105,000 - $120,000 a year
- Full-time
- Computer science
- 7 years
- Computer Science
- Profit sharing
- Health savings account

I want to receive the latest job alert for Proprietary Software Developer in Chicago, IL

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Explore jobs in more locations

Proprietary Software Developer jobs near Chicago, IL

Full-stack Engineer

Ocra -
Chicago, IL

Quick Apply

Job Details

Full-time
$130,000 - $160,000 a year

Benefits

Stock options
Health insurance
Unlimited paid time off
Dental insurance
401(k)
Vision insurance

Qualifications

Notion
Performance monitoring
Systems integration
Google Docs
Automation
Procedural guides
IT system monitoring
Data retrieval time improvement
Pricing optimization
Slack
System design
Revenue management
Mid-level
AI platforms (beyond public GPTs)
Communication platforms
SQL
Event-driven architecture
AWS
Product development
Quality issues
Redis
SaaS platforms
Implementing APIs
Collaborative technology platforms
GitHub
Experience with SaaS (as product category for technical sales engineers)
User guides
Developing and maintaining backend systems
Integration with Third-Party Services (system development)
In-memory caching

Full Job Description

About Ocra

Ocra is an AI-powered Revenue Management System (RMS) and Global Distribution System (GDS) built for parking assets. Parking owners and operators use Ocra to sell underutilized parking inventory through “parking OTAs” to prepaid reservation customers looking to park near airports, event venues and high-demand transient locations.
Ocra's team of parking revenue management experts drives revenue growth without adding labor or disrupting operations, helping assets increase net operating income (NOI).
Ocra partners with 50+ parking operators and 25+ hotel groups at over 600+ locations. The company has raised $10M, most recently an oversubscribed $5M round co-led by Trestle Partners and MCR Hotels.

We’re looking for a mid-level full-stack engineer who is energized by working in a small, distributed team where autonomy, curiosity, and adaptability matter more than rigid processes (but we do work on our processes and ensuring it’s not total chaos).

What You Will Be Doing

Design, build, and maintain full-stack features across our SaaS platform.
Develop and optimize APIs (client & server side), including working with messy or poorly documented partner integrations.
Write clean, well-tested, and well-documented code (unit and integration testing).
Collaborate with teammates on architecture, design reviews, and code reviews.
Contribute to shared resources like onboarding guides, runbooks, and documentation.
Identify and resolve performance issues, especially around SQL queries and scaling workloads in AWS.
Experiment with AI tools and approaches — both to accelerate development and to inform our proprietary AI-enabled product.

Core Skills & Experience

Languages: Python (primary), JavaScript/TypeScript (secondary).
Databases: Postgres, Redis, and DynamoDB experience, including query optimization.
Testing: Familiarity with unit testing, integration testing, and modern testing tools.
Cloud: Hands-on experience with AWS (deployment, monitoring).
Building and consuming APIs; able to reverse engineer poorly documented systems.
Comfortable in a distributed, text-first communication environment (Slack, GitHub, Notion, Linear, Google Docs).

Bonus points for any of the following:

Vue experience in building user interfaces and front-end experiences
Experience in parking, mobility, or adjacent industries (hotel, airline, shipping, storage, etc.).
Background in pricing optimization, revenue management, or omni-channel distribution systems.
Familiarity with serverless architectures and event-driven systems.
Interest or hands-on experience with AI development (LLMs, agents, or workflow automation).

Who You Are

Clear & Direct Communicator
- Communicates with clarity, precision, and honesty.
- Assumes good intent and avoids unnecessary fluff.
Adaptable Generalist
- Curious and eager to learn unfamiliar parts of the system.
- Comfortable wearing multiple hats (full-stack)
- Collaborative & Feedback-Friendly
Creative & Resourceful Hacker
- Enjoys solving problems that seem impossible — like automating brittle systems or bridging mismatched APIs.
- Sees constraints as opportunities for inventive solutions.
Pragmatic & Impact-Oriented
- Focuses on delivering value, not chasing perfection.
- Makes thoughtful tradeoffs between speed and quality.
Flexible & Proactive
- Raises issues early and steps outside their lane when needed.

Non-Negotiables

We value humility, curiosity, and outcomes over ego or rigid process.

Benefits

Competitive salary w/ ancillary earning opportunities
Comprehensive benefits: medical, dental, & vision
Flexible work-from-anywhere policy
Unlimited PTO that supports work-life balance
Stock option incentive plan
Company-sponsored 401k
Structured growth opportunities
Training and ongoing professional development

Compensation Range: $130K - $160K

Quick Apply

Refine Your Search

Proprietary Software Developer jobs in Chicago, IL

Full-stack Engineer

Associate Engineer 2026 - immediate start

Python Software Engineer

Software Engineer

Software Engineer, Fullstack

Software Engineer

Python Developer (Airlines)

Full Stack Agentic Developer

Fullstack Developer

Full Stack Developer

Full-Stack Cloud Engineer

Staff Software Engineer

Software Engineer

Senior Software Engineer

Staff/Senior Software Engineer (Python/PHP)

C++ Developer - Trading Platforms

Senior Cloud Engineer (Remote)

Lead Software Engineer

Principal Software Engineer, AI (Web & Data)

Senior Full Stack Developer

I want to receive the latest job alert for Proprietary Software Developer in Chicago, IL

Explore jobs in more locations

About Ocra

What You Will Be Doing

Core Skills & Experience

Bonus points for any of the following:

Who You Are

Non-Negotiables

Benefits

Job Seeker Tools

Employer Tools

Browse

Stay Connected