Java Developer (Food Delivery sphere)

Coherent Solutions is a digital product engineering company focused on empowering business success. Our global team of 1700+ talented professionals collaborate seamlessly to deliver innovative solutions that drive measurable business impact. Headquartered in Minneapolis, USA, the company’s core competencies across 10 locations worldwide include product software development, IT consulting, data and analytics, machine learning, mobile app development, DevOps, Salesforce, and more.

We grow a team of advisors, not just order takers, and strive to make the company a place for career growth and opportunities. If you want to grow your core competencies, share your passion and be sure that every contribution is evaluated, we are on the same page.

Company Background

Our client is a leading online and mobile food ordering company, connecting diners with over 80,000 takeout restaurants across 1,600+ U.S. cities and London. Their platform processes over 436,900 daily orders, generating $4 billion in annual gross food sales, and supports millions of active diners. The company is committed to high availability, reliability, and scalability, ensuring seamless experiences for both customers and restaurant partners.

Project Description

This role focuses on the Enterprise Application, where companies manage lunch/dinner orders for employees. You will be working on the Merchant Accounting Service (MAS), an online service responsible for processing orders and generating financial transactions that determine the amount of revenue retained and the payments owed to restaurants. Additionally, the Accounting Gateway manages consolidated transactions with external accounting providers, currently integrating with Intacct.

Technologies

• Java
• AWS
• Cassandra (NoSQL)
• Docker
• CI/CD (Gradle, Jenkins, Spinnaker)
• JUnit
• Mockito
• JMeter
• Gatling.io

What You'll Do

• Design, develop, and maintain highly scalable, fault-tolerant backend services;
• Build and optimize Merchant Accounting Service (MAS) to ensure accurate financial transactions for restaurants;
• Develop observability features to enhance monitoring, alerting, and logging for distributed systems;
• Ensure high availability (99.99% uptime) by designing redundant, scalable architectures;
• Write automated tests (unit, integration, and performance testing) using JUnit, Mockito, JMeter, and Gatling.io;
• Implement and manage CI/CD pipelines using Gradle, Jenkins, Spinnaker, or similar tools;
• Work with distributed databases (Cassandra or similar NoSQL solutions) to ensure high availability and low-latency access;
• Collaborate with cross-functional teams to improve system reliability, scalability, and performance;
• Participate in an on-call rotation to ensure continuous system availability and rapid response to incidents;
• Model system resource requirements to efficiently scale applications based on traffic changes;

Job Requirements

• 5+ years of experience in backend development, with a focus on highly scalable consumer-facing applications;
• Strong expertise in Java and AWS (or similar cloud platforms);
• Experience with distributed systems and fault-tolerant architectures;
• Proficiency in data structures, algorithms, and high-performance system design;
• Experience developing and maintaining high-availability distributed systems (99.99% uptime);
• Experience with NoSQL databases such as Cassandra;
• Hands-on experience with Docker or other containerization technologies;
• Ability to troubleshoot performance issues, optimize services, and build self-healing mechanisms;
• Strong experience with CI/CD tools (Gradle, Jenkins, Spinnaker, etc.);
• A customer-first mindset, ensuring services remain operational during outages;
• Ability to work independently, prioritize tasks, and collaborate across teams to drive results;
• English proficiency at B2 or higher for effective communication with international teams;
• Willingness to participate in an on-call rotation for system support;

What Do We Offer

• You will be rewarded with the salary starting from 4500 EUR gross monthly.
• Remote work. We respect each employee’s chosen way to work remotely anywhere.
• "Launch for success" package: premium health insurance, monthly lunch vouchers, telecom services for employees and their family members, and more.
• Global teams. The working model in the company is based on working in global multicultural departments and gaining experience from the highest-level professionals.
• International Clients. It is on us to ensure the wide range of Clients you will work with – Innovative start-ups and Fortune 1000 companies in the U.S. and Europe.
• Professional growth opportunity. We created a professional training center including educational programs for developers of any level and live training sessions.
• Unique ideas development. Our internal start up incubator, Innovation Sandbox, helps to materialize ideas, receive support on their realization, and win cash prizes.
• Team spirit. Work in the company is not just about work – team building, celebrations, corporate events, family events and other traditions are an essential part of our culture.

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