ConnexityHiring

Senior Software Engineer III, Backend

  • Los Angeles, CA
  • Senior
  • Posted 6 days ago
Apply with Keywordise AI

or apply from Claude / ChatGPT / Muse

In one line

Backend engineer on an internal tools team building a new advertiser management platform that replaces several older systems; Java and Spring Boot are central.

About the role

A fit is an experienced backend engineer who likes shaping a platform from its early days, from APIs and data models to system design. The team unifies legacy systems on one modern foundation, with middleware and services at the core.

At a glance

Pay
Not stated in the posting
Location
Los Angeles, CA
Seniority
Senior
Skills
Java, Spring Boot, Python, Node.js, Go, RESTful API, MySQL
Posted
29 Oct 2026
Last checked
1 Nov 2026

What you will do

  • Design and maintain backend services, APIs and microservices for the platform
  • Contribute to architecture and system design choices that keep things reliable and fast
  • Model relational schemas and tune queries that act as the system of record
  • Work with product, design and engineering peers to define and ship features

What they look for

  • 10 or more years of backend development, including high-performance systems
  • Strong Java plus Spring Boot, and working knowledge of Python, Node.js or Go
  • Distributed systems and microservices experience, with NoSQL or BigQuery exposure

Nice to have

  • Interest in evaluating AI-assisted development tooling
  • A habit of refactoring code for scalability and maintainability

How Keywordise applies for you

  1. 1Upload your CVAdd your CV once. It takes about a minute.
  2. 2Tailored to this jobKeywordise writes a CV and a cover letter for this job from your real experience.
  3. 3The form fills itselfName, email, experience and screening questions, field by field.
  4. 4Application sentYou get a receipt and follow it in your dashboard.

Apply with Keywordise AI7-day free trial, no card.

Apply from your AI assistant

Connect Keywordise to your assistant once, then send it the prompt. It applies for you.

ClaudeConnectorChatGPTConnectorMuseby Meta

Claude

  1. In Claude, open Settings, then Connectors, and choose Add custom connector.
  2. Name it Keywordise and paste the connector URL.
  3. Click Connect, log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
https://keywordise.com/mcp

Disconnect any time in your Keywordise settings.

ChatGPT

  1. In ChatGPT, open Settings, then Connectors. On plans that need it, turn on developer mode first.
  2. Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
  3. Log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
https://keywordise.com/mcp

Disconnect any time in your Keywordise settings.

Muse

  1. Open Muse (muse.ai or the app) and send it the message below.
  2. If Muse asks how to sign in, answer OAuth. Open the sign-in link it sends, log in to Keywordise and approve.
  3. Send the prompt. Muse asks before it sends anything.
Message for Muse
Add a custom connector called Keywordise. It is a remote MCP server at https://keywordise.com/mcp and uses OAuth. Give me the sign-in link.

Muse is available in the US only for now.

Prompt
Apply to Keywordise job ho3ricub7u
How to connect

Questions about this job

Where is this job based?

The posting lists Senior Software Engineer III, Backend as a role based in Los Angeles, CA, United States.

What does this job pay?

The posting does not state a salary, so there is no figure to quote.

What experience is needed?

It is a senior role. The posting asks for: 10 or more years of backend development, including high-performance systems; strong Java plus Spring Boot, and working knowledge of Python, Node.js or Go; distributed systems and microservices experience, with NoSQL or BigQuery exposure. Skills it names include Java, Spring Boot, Python, Node.js.

How do I apply with Keywordise AI?

Select Apply with Keywordise AI, sign up and upload your CV. Keywordise writes a CV and a cover letter for this job from your real experience and applies for you. The 7-day free trial needs no card.

More IT and software jobs in Los Angeles, CA

All jobs
ConnexityLos Angeles, CA
Apply with Keywordise AI