Backend Developer Level 3

Rapinno Tech; United States; Remote; USD 120,000 - 165,000; Full time

Job summary

84.51° is seeking a Backend Developer Level 3 for a 100% remote, 6+ month contract. The role demands 8+ years of experience in modern full‑stack web development and a strong background in Java, SpringBoot, RESTful APIs, and distributed systems.

You'll work in a cross-functional team with product, design, and data scientists to deliver scalable solutions, emphasize TDD, CI/CD, and robust monitoring while maintaining code quality and collaboration.

Qualifications

• 8+ years of professional software development experience.
• Experience with modern full-stack web-application development.
• Strong background in distributed systems and microservices.

Responsibilities

• Build robust, scalable backend and related services across the stack.
• Design services and system architecture to support growth.
• Write clean, testable code and participate in code reviews and testing.

Skills

TDD

CI/CD

Monitoring/Alerting

Distributed systems

Microservices

Agile methodologies

Education

Bachelor's degree in Computer Science or related field

Tools

Java

Docker

Azure Cloud Services

SpringBoot

RESTful APIs

Angular

Redux

NgRx

RabbitMQ

MySQL

MongoDB

Job description

Job Title: Backend Developer Level 3 Location: 100% Remote Duration: 06+ Months Contract

Job Description: Need minimum 08+ years of experience

In a digital economy, data is the 21st century gold rush. Imagine working for a big data company with 10 petabytes of data at your fingertips. A company where we are deriving insights from 35+ terabytes of new data every week. 84.51° is a wholly owned subsidiary of The Kroger Company. Our data is sourced from consumer transactions and behavior across 24 banners, 38 states and 58 million households. We are the research, development, and innovation arm of the nations second largest retailer. We create advanced data driven solutions putting the customer at the center of all our decisions.

What youll do

You will be part of a cross-functional team, applying your skill, experience, and creativity towards building complex and scalable solutions. You will work in a highly collaborative environment, solving exciting problems while leveraging best engineering practices. We work full-stack and the team owns features end-to-end. On our teams, were working daily with product, design, and data scientists to understand the problem and translate learnings into a pragmatic and effective solution. We happily pull in a peer when we need a pair to get through a tough problem or just for a second pair of eyes. We are always balancing new feature development with efforts to continuously improve both our efficiency and our infrastructure.

You should have

A passion for bringing great products into our world through collaboration and ingenuity Experience with sustainable engineering practices such as automated testing (TDD), continuous integration, continuous deployment, and monitoring / alerting. Strong fundamentals, with overlap across our tech stack (Java, SpringBoot, RESTful APIs, Angular, Redux, NgRx, Docker, RabbitMQ) Experience with distributed (multi-tiered) systems, microservices, and relational databases A passion for learning from and collaborating with a diverse, talented team

Requirements

Bachelors degree typically in Computer Science, Management Information Systems, Mathematics, Business Analytics or another technically strong program Minimum 4+ years working in modern full-stack web-application development Experience building and shipping multiple large software products using agile methodologies Excellent communication skills - you can effectively work with engineers but at the same time collaborate with product owners, data analysts and stakeholders

Major Bonus Points for

Experience in Media / Ad Industry Experience working on distributed or remote-first teams Experience with distributed system performance analysis and optimization Experience in event-driven architectures Experience with DevOps best practices and tools Experience in Spark, Hadoop, Unravel, Hive, Google Cloud

Skills

Some technology you might work with includes: Java Docker Azure Cloud Services SpringBoot RESTful APIs Angular Redux NgRx RabbitMQ MySQL MongoDB

Key Responsibilities

• Building robust and scalable software using a variety of tools & languages


• Designing and creating services and system architecture


• Writing code that is clean, testable and efficient, while improving our code quality through writing unit tests, automation, and conducting code reviews


• Help define architectural improvements to enable orders-of-magnitude growth in traffic and order volumes


• Following & bringing forth industry best practices from DRY, YAGNI principles to TDD and CI/CD practices, and following our own best practices & principles we have aligned on as an organization


• Working with the product, design and data science teams to understand end-user requirements, formulate use cases, and translating learnings into a pragmatic and effective technical solution


• Brainstorming and contributing ideas to our technology, algorithms, and products


• Creating amazing user experiences for both internal and external customers.

Skills

Some technology you might work with includes: Java Docker Azure Cloud Services SpringBoot RESTful APIs Angular Redux NgRx RabbitMQ MySQL MongoDB