They are seeking a Full Stack Developer to build and improve products, focusing on backend and ... contract, and similar patterns). • Own database performance: indexing, query analysis, and ...
They are seeking a Full Stack Developer to build and improve products, focusing on backend and ... contract, and similar patterns). • Own database performance: indexing, query analysis, and ...
Full Stack Developer - Backend Focused
Lehi, UT · On-site
$70K - $140K/yr
Own backend API services, improving performance, security, and efficiency. * Complete devops or frontend tasks when necessary for a project to succeed. HOW WE BUILD WITH AI We expect engineers to use ...
Full Stack Developer - Backend Focused
Lehi, UT · On-site
$70K - $140K/yr
Own backend API services, improving performance, security, and efficiency. * Complete devops or frontend tasks when necessary for a project to succeed. HOW WE BUILD WITH AI We expect engineers to use ...
Software Developer
Salt Lake City, UT · On-site
$85K - $116K/yr
Collaborate with back-end C#/.Net and AWS data engineers to define clean API contracts and ensure reliable data delivery across services * Write clean, testable, well-documented code and participate ...
New
Quick apply
Software Developer
Salt Lake City, UT · On-site
$85K - $116K/yr
Collaborate with back-end C#/.Net and AWS data engineers to define clean API contracts and ensure reliable data delivery across services * Write clean, testable, well-documented code and participate ...
New
Software Developer
Salt Lake City, UT · On-site
$85K - $116K/yr
Collaborate with back-end C#/.Net and AWS data engineers to define clean API contracts and ensure reliable data delivery across services * Write clean, testable, well-documented code and participate ...
Software Developer
Salt Lake City, UT · On-site
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Collaborate with back-end C#/.Net and AWS data engineers to define clean API contracts and ensure reliable data delivery across services * Write clean, testable, well-documented code and participate ...
Software Engineer II
Draper, UT · On-site
$91K - $124K/yr
Software Engineer II Duration: 06 Months Contract (Possible Extension or Perm) Location: 13693 ... Yes We are looking for a Backend Engineer II to join the DMS+ team. This role focuses on building ...
Quick apply
Software Engineer II
Draper, UT · On-site
$91K - $124K/yr
Software Engineer II Duration: 06 Months Contract (Possible Extension or Perm) Location: 13693 ... Yes We are looking for a Backend Engineer II to join the DMS+ team. This role focuses on building ...
Software Developer in Test - Assistant Vice President
Salt Lake City, UT · On-site
$110K - $130K/yr
As a Software Developer in Test (SDET), this role will work closely with the Development and ... backend services and smart-contract interactions. * Perform all types of testing as needed like ...
Software Developer in Test - Assistant Vice President
Salt Lake City, UT · On-site
$110K - $130K/yr
As a Software Developer in Test (SDET), this role will work closely with the Development and ... backend services and smart-contract interactions. * Perform all types of testing as needed like ...
AI Software Developer in Test - Vice President
Salt Lake City, UT · On-site +1
$120K - $150K/yr
... backend services and smart contract interactions where applicable. * Perform all types of testing ... Qualifications * 10+ years of experience with QA engineering delivery experience with strong focus ...
AI Software Developer in Test - Vice President
Salt Lake City, UT · On-site +1
$120K - $150K/yr
... backend services and smart contract interactions where applicable. * Perform all types of testing ... Qualifications * 10+ years of experience with QA engineering delivery experience with strong focus ...
AI Software Developer in Test - Vice President
Salt Lake City, UT · On-site
$120K - $150K/yr
... backend services and smart contract interactions where applicable. * Perform all types of testing ... Qualifications * 10+ years of experience with QA engineering delivery experience with strong focus ...
AI Software Developer in Test - Vice President
Salt Lake City, UT · On-site
$120K - $150K/yr
... backend services and smart contract interactions where applicable. * Perform all types of testing ... Qualifications * 10+ years of experience with QA engineering delivery experience with strong focus ...
Software Developer in Test - Assistant Vice President
Salt Lake City, UT · On-site +1
$110K - $130K/yr
Build and implement robust automated test suites for API and backend services. * Develop and ... Experience working with blockchain technologies (i.e. smart contracts, distributed ledgers, and ...
Software Developer in Test - Assistant Vice President
Salt Lake City, UT · On-site +1
$110K - $130K/yr
Build and implement robust automated test suites for API and backend services. * Develop and ... Experience working with blockchain technologies (i.e. smart contracts, distributed ledgers, and ...
Federation & Contract Governance: Own the health, evolution, and long-term hygiene of our GraphQL ... Mentor and coach engineers across both frontend and backend disciplines, elevating code review ...
Federation & Contract Governance: Own the health, evolution, and long-term hygiene of our GraphQL ... Mentor and coach engineers across both frontend and backend disciplines, elevating code review ...
... backend subgraphs and authorization layers--serving as the ultimate escalation point when technical layers disagree. • Federation & Contract Governance: Own the health, evolution, and long-term ...
... backend subgraphs and authorization layers--serving as the ultimate escalation point when technical layers disagree. • Federation & Contract Governance: Own the health, evolution, and long-term ...
Federation & Contract Governance: Own the health, evolution, and long-term hygiene of our GraphQL ... Mentor and coach engineers across both frontend and backend disciplines, elevating code review ...
Quick apply
Federation & Contract Governance: Own the health, evolution, and long-term hygiene of our GraphQL ... Mentor and coach engineers across both frontend and backend disciplines, elevating code review ...
Federation & Contract Governance: Own the health, evolution, and long-term hygiene of our GraphQL ... Mentor and coach engineers across both frontend and backend disciplines, elevating code review ...
Federation & Contract Governance: Own the health, evolution, and long-term hygiene of our GraphQL ... Mentor and coach engineers across both frontend and backend disciplines, elevating code review ...
Java Engineer
Salt Lake City, UT · On-site
$50 - $68.75/hr
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Java Engineer
Salt Lake City, UT · On-site
$50 - $68.75/hr
Salt Lake City, Utah onsite C2C Contract JD Below 1. Core Java Expertise (Kotlin is a plus) Strong ... backend development Tech Stack: Java 17+, Kotlin, Maven/Gradle, JUnit 2. Spring Boot ...
Java Engineer
Salt Lake City, UT · On-site
$50 - $68.75/hr
Salt Lake City, Utah onsite C2C Contract JD Below X. Core Java Expertise (Kotlin is a plus) Strong ... Cloud-Native & Database Engineering Understanding of cloud-native principles and scalable backend ...
Java Engineer
Salt Lake City, UT · On-site
$50 - $68.75/hr
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Senior Fullstack Software Engineer
$109K - $144K/yr
... backend services supporting it. You will own features end-to-end-from building responsive React ... Define clear data contracts between microservices, maintain schema federation hygiene, and ...
Senior Fullstack Software Engineer
$109K - $144K/yr
... backend services supporting it. You will own features end-to-end-from building responsive React ... Define clear data contracts between microservices, maintain schema federation hygiene, and ...
Experience in software development technologies including Java backend frameworks (Spring ... Contract Salary: $80,000.00 /year Required education: * Bachelor's Required experience: * Developer ...
Experience in software development technologies including Java backend frameworks (Spring ... Contract Salary: $80,000.00 /year Required education: * Bachelor's Required experience: * Developer ...
Full Stack Software Developer - Mid-Senior Level
Farmington, UT · On-site
$80K - $85K/yr
Due to our current client contracts, we are unable to hire INTERNATIONALLY and in these states at ... You'll work across our Lucee (CFML) backend and Angular frontend, building and maintaining the ...
Full Stack Software Developer - Mid-Senior Level
Farmington, UT · On-site
$80K - $85K/yr
Due to our current client contracts, we are unable to hire INTERNATIONALLY and in these states at ... You'll work across our Lucee (CFML) backend and Angular frontend, building and maintaining the ...
Full Stack Software Developer - Mid-Senior Level
Farmington, UT · Remote
$80K - $85K/yr
Due to our current client contracts, we are unable to hire INTERNATIONALLY and in these states at ... You'll work across our Lucee (CFML) backend and Angular frontend, building and maintaining the ...
Full Stack Software Developer - Mid-Senior Level
Farmington, UT · Remote
$80K - $85K/yr
Due to our current client contracts, we are unable to hire INTERNATIONALLY and in these states at ... You'll work across our Lucee (CFML) backend and Angular frontend, building and maintaining the ...
Staff Software Engineer
Draper, UT · Remote
Design the API contract for the permission service: how callers request access decisions, how ... Strong backend engineering fundamentals; comfort working in a PHP monolith with modern ...
Quick apply
Staff Software Engineer
Draper, UT · Remote
Design the API contract for the permission service: how callers request access decisions, how ... Strong backend engineering fundamentals; comfort working in a PHP monolith with modern ...
Contract Back End Developer information
What is the difference between Contract Back End Developer vs Contract Front End Developer?
| Aspect | Contract Back End Developer | Contract Front End Developer |
|---|---|---|
| Required Skills | Server-side languages (e.g., Java, Python), databases, API development | HTML, CSS, JavaScript, UI frameworks |
| Work Environment | Backend systems, server management, database integration | Client-side interfaces, user experience design |
| Common Certifications | None specific, but backend certifications (e.g., AWS, Oracle) are common | None specific, but front end certifications (e.g., React, Angular) are common |
Contract Back End Developers focus on server-side logic, databases, and API development, while Contract Front End Developers work on user interfaces and client-side functionality. Both roles require technical skills but differ in their focus areas within software development.
What are some common challenges faced by contract back end developers when integrating with existing systems?
What are the key skills and qualifications needed to thrive as a Contract Back End Developer, and why are they important?
What are Contract Back End Developers?

Full-time
Re-posted 16 days ago
Job description
Opiniion Inc. is a resident satisfaction software company that partners with property management firms to enhance living experiences. They are seeking a Full Stack Developer to build and improve products, focusing on backend and platform development, including a migration from MongoDB to PostgreSQL.
Responsibilities:
• Write and maintain Node.js (TypeScript) API services and Python scripts.
• Architect the relational schema from our existing document-based data model.
• Design and execute a zero-downtime migration strategy (dual-write, expand-contract, and similar patterns).
• Own database performance: indexing, query analysis, and connection pooling.
• Work across MongoDB and PostgreSQL to read, process, and optimize data.
• Contribute across the full stack, from front-end product work to back-end services, as the team's priorities move.
Qualifications:
Required:
• 5+ years of professional software engineering experience.
• True full-stack range: comfortable on the front end (JavaScript or TypeScript with a modern framework, Vue preferred, React welcome) and on the back end (services and APIs in Node.js and/or Python).
• Strong SQL and solid relational data fundamentals (joins, CTEs, window functions, indexing).
• Experience designing and consuming REST APIs, including auth flows (OAuth, API keys, token refresh), pagination, rate limiting, and error handling.
• Comfortable in AWS (RDS, S3, ECS or Lambda, IAM basics) and using Docker for local development.
• Disciplined with Git, pull requests, CI/CD, testing, and clear documentation.
• Have shipped a production NoSQL to relational migration and can walk us through it.
• Deep PostgreSQL knowledge (JSONB, CTEs, window functions, transactions, EXPLAIN ANALYZE).
• Strong, autonomous Node.js and TypeScript skills, with a habit of putting data integrity first and speed second.
• Ownership mindset: you treat what you ship as your responsibility, not just your code. When something breaks, you care about the fix and the prevention.
• Strong communicator: you set clear expectations, surface problems early, and write things down so the team doesn't run on tribal knowledge.
• Collaborative and low-ego: you give thoughtful code reviews, help teammates through blockers, and keep learning.
• Autonomous: you can take a well-scoped problem and drive it to done, while knowing when to ask for help.
Preferred:
• Experience with schema migration tooling (we use Drizzle).
• Strong computer science fundamentals and prior backend architecture ownership.
• Experience in SaaS or other product-led software environments.
• Familiarity with MongoDB internals and NoSQL-to-relational migration patterns.
Company:
Opiniion is an industry leading resident satisfaction software. Founded in 2017, the company is headquartered in Lindon, USA, with a team of 51-200 employees. The company is currently Growth Stage.
About Opiniion
Sourced by ZipRecruiter
Industry
Software development
Company size
11 - 50 Employees
Headquarters location
Lindon, UT, US
Year founded
2017