software development experience, including substantial hands-on backend development Strong experience building REST APIs, backend... ...security mission systems, architectural standards, and mentoring developers Software…
Engineering & IT · Denver, CO
Backend Developer jobs in Denver, CO
Backend developers build the server-side logic, APIs, and data layers that applications run on. The job is designing services that stay correct, fast, and secure as usage grows.
164
Open roles today
$38–$100/hr
Typical pay range
$135k
Median, full-time
9
Fresh in this list
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01
Open backend developer roles
12 shown of 164 · sorted by freshness
$100k - $150k
Baker is looking for an experienced full-stack (Javascript) developer to help us continue to grow our product. This person will work directly... ...the core platform Work with various teams to integrate backend systems w…
$98.5k - $206.8k
Required: NoneType of Travel: NoneAnticipated Posting End: 9/14/2027The Opportunity:CACI is seeking an experienced Full Stack Software Developer to join a multidisciplined team to work on delivering the next generation o…
$118.35k - $142.53k
architecture, version control tools such as GitHub or SVN, CI/CD pipelines, and software engineering principles. Responsibilities: Develop and maintain full-stack web applications using modern JavaScript frameworks such…
based, except CA & NY metro areas) Reporting to: Brianna Dropinski OUR TECH STACK - Frontend: Vue 3, TypeScript, Vitest, Cypress - Backend: Laravel (PHP 8), Java with Spring Boot, TypeScript, AWS Lambda, REST APIs - Data…
$134.5k - $265.1k
experiences, and works with Architecture, iOS and Android Engineering, Backend Engineering, Data, Design, and Go-to-Market to deliver... ...merchandising experiences, and resolve tradeoffs between them.Lead and develop p…
$65.8k - $213.4k
the nature of this work, this position will be 100% on-site.Responsibilities include, but are not limited to, the follow:Designs, develops, documents, tests and debugs applications software and systems that contain logic…
$120k - $180k
PiperPosition Owner: Reese EelkemaZachary Piper Solutions is seeking a Backend Engineer to support a next‑generation federal mission‑software... ...SECRET SECURITY CLEARANCE REQUIRED Primary Responsibilities:• Develop b…
improve the stack. ~ TypeScript monorepo ~ Frontend - React web app hosted on AWS S3/Cloudfront; Redux, Material UI, ReactQuery ~ Backend - Serverless NodeJS hosted on AWS Lambda, managed by SST. MySQL database. Also inc…
$96.25k - $137.5k
invalidation strategies to resolve subsystem bottlenecks and meet team uptime OKRs. Develop decoupled integration points across AEM and Commerce services to maintain separation between backend business logic and presenta…
Our distributed teams collaborate across time zones to deliver for clients worldwide. We are seeking a motivated **Junior Backend Developer* * to join our growing engineering team. This is an excellent opportunity for so…
seeking a Software Engineer with strong .NET and Angular skills to develop and maintain OpenFLIS's microservices and user interface. The... ...Familiarity with other front‑end frameworks (React, Vue) and backend technolo…
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What backend developers earn in Denver
Hourly first — that's how the offer arrives
| Experience | Hourly | Annual, full-time |
|---|---|---|
| Entry level | $38–$53 | $79k–$110k |
| Mid level | $53–$77 | $110k–$160k |
| Senior | $74–$100 | $154k–$209k |
Adjusted for the Denver market from national ranges.
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What employers ask for
The skills these listings keep naming
A server language (Java, Go, Python, C#)API design (REST, gRPC)SQL and schema designCaching and queuesAuthentication and securityDistributed systems basicsDocker and CI/CDObservability and logging
04
Interview questions worth rehearsing
With the thing the interviewer is actually listening for
Design an API for a feature like comments or notifications.
Clarify requirements, then cover endpoints, data model, pagination, and error handling. Mentioning versioning and rate limits shows production experience.
How would you find and fix a slow database query?
Walk through reading the query plan, checking indexes, and considering caching or denormalization. Ground it in a query you actually fixed.
How do you keep two services consistent when both need to update data?
Discuss transactions, idempotency, and eventual consistency with outbox or saga patterns. Acknowledge tradeoffs rather than promising perfect consistency.
What do you monitor on a service you own?
Name the basics — latency, error rate, saturation — plus business-level signals. Bonus points for talking about alerts you tuned to reduce noise.
Tell me about a production incident you handled.
Structure it: detection, mitigation, root cause, prevention. Emphasize what changed afterward, not just the firefight.
How do you approach securing an API?
Cover authentication, authorization, input validation, and secrets handling. Naming OWASP-style risks concretely is enough; you are not expected to be a security engineer.
When would you choose a message queue over a direct call?
Talk about decoupling, retries, and absorbing spikes, and be honest about the added complexity of async debugging.
05
Resume tips that move the needle
For backend developers specifically — generic advice costs you here
01
State scale where you can: requests per second, data volume, or number of services — it is the fastest way to signal seniority.
02
Name the databases and infrastructure you ran in production, not just languages.
03
Describe reliability work — migrations without downtime, incident reduction, test coverage on critical paths.
04
If you designed an API others consume, say so and note how many teams or clients depend on it.
05
Avoid listing every framework you have touched; two stacks with depth read better than eight without.
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Where this role goes
Typical progression
01
Junior Backend Developer
02
Backend Developer
03
Senior Backend Developer
04
Staff Engineer
05
Principal Engineer
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