Java Developer (Digital Marketing domain)

Coherent Solutions; México; Hybride; MXN 900 000 - 1 400 000; Plein temps

Avantages offerts par ce poste

Health insurance

Flexible work options

Training programs

Conferences & meetups

Mentorship

Referral program

Vacation days

Résumé du poste

Coherent Solutions in Mexico is seeking a senior Java backend engineer to help develop real-time DSP serving services, processing billions of transactions daily, with a focus on high throughput, low latency, and reliability. You will work with Kafka/Kinesis, Docker, Kubernetes, and Tomcat to build scalable distributed systems.

You will collaborate with product teams, write production-ready code, improve test coverage and observability, and participate in Agile sprints with quarterly pager duty.

Qualifications

• 5+ years of commercial Java backend development experience.
• Strong knowledge of the JVM ecosystem, GC, profiling and tuning.
• Experience with distributed REST APIs, fault tolerance, scalability and resilience.
• Hands-on experience with low-latency, high-throughput services.
• Experience with real-time streaming pipelines using Kafka or Kinesis.
• Strong data structures and algorithms knowledge.
• Experience with Tomcat and web/application servers.
• Understanding of networking and load balancing concepts.
• Production experience with Docker and Kubernetes.
• Git and CI/CD pipelines (GitLab CI/CD or similar).
• Interest in modern technologies and AI-assisted development tools.
• Willingness to participate in PagerDuty rotation (1 week per quarter).
• Excellent verbal and written communication; ability to explain technical trade-offs.
• English: B2 or higher.

Responsabilités

• Develop high-performance, large-scale services for DSP integrations and platform products.
• Collaborate with Product to translate requirements into technical solutions.
• Write clean, production-ready code with a focus on throughput and latency.
• Design, develop, test, and improve platform features.
• Contribute to distributed systems handling billions of transactions per day under SLAs.
• Improve test coverage, monitoring, automation, and observability.
• Follow Agile methods in a fast-paced engineering environment.

Connaissances

Java backend development

High-throughput systems

Low latency optimization

Distributed REST APIs

Communication

English fluency

Outils

Docker

Kubernetes

Tomcat

Git

CI/CD

Kafka

Kinesis

Redis

AWS S3

Description du poste

Mexico

Company Background

Our client is a global technology company transforming the way brands and agencies make marketing decisions. Its platform enables marketers to plan and activate cross-channel, programmatic media campaigns using real-time research, proprietary audience data, advanced analytics, and more than 150 integrated partners including Facebook, Instagram, Pinterest, Snapchat, and Twitter. The company operates across North America, Europe, the Middle East, Asia, and Australia.

Project Description

The role is focused on developing and modernizing real-time DSP serving services that process bid requests, deliver ads, integrate with third-party platforms, and record measurement events used for reporting and billing. The team works on high-throughput, low-latency systems processing millions of requests per second, with a strong focus on availability, data correctness, performance tuning, and scaling the platform for future growth. Current initiatives include splitting a monolith into microservices, improving deployment automation, and moving measurement pipelines from batch processing to real-time streaming with Kafka.

Technologies

• Java
• Kafka / Kinesis
• Redis
• S3
• Tomcat
• Docker, K8S
• Git, CI/CD

What You'll Do

• Develop critical high-performance, large-scale services for DSP programmatic integrations and platform products;
• Work closely with the Product team to understand business needs and translate product requirements into technical solutions;
• Write clean, efficient, and production-ready code with a strong focus on high throughput and low latency;
• Design, develop, test, and improve new and existing platform features;
• Contribute to building large-scale distributed systems processing billions of transactions per day under strict SLAs;
• Improve test coverage, monitoring coverage, automation, and overall system observability;
• Follow Agile methodologies and work in a fast-paced engineering environment with quick delivery cycles;

Job Requirements

• 5+ years of commercial experience in Java backend development, with a focus on scalable backend systems;
• Strong knowledge of the JVM ecosystem, including garbage collection, profiling, and performance tuning;
• Experience with distributed REST APIs, fault tolerance, scalability, consistency, and resilience;
• Hands-on experience with low-latency and high-throughput services;
• Experience with real-time streaming pipelines using Kafka, Kinesis, or similar technologies;
• Strong knowledge of data structures and algorithms;
• Experience with web/application servers such as Tomcat;
• Solid understanding of networking and load balancing concepts;
• Production experience with Docker and Kubernetes;
• Experience with Git and CI/CD pipelines, such as GitLab CI/CD or similar tools;
• Interest in applying modern technologies and AI-assisted development tools;
• Readiness to participate in PagerDuty rotation (1 week per quarter);
• Strong verbal and written communication skills, including the ability to explain complex technical trade-offs to both technical and non-technical stakeholders;
• English: B2 or higher;

Nice To Have

• Prior experience in the AdTech industry;
• Familiarity with Python or Scala;

What Do We Offer

The global benefits package includes:

• Technical and non-technical training for professional and personal growth;
• Internal conferences and meetups to learn from industry experts;
• Support and mentorship from an experienced employee to help you professional grow and development;
• Health insurance;
• Sports activities to promote a healthy lifestyle;
• Flexible work options, including remote and hybrid opportunities;
• Referral program for bringing in new talent;
• Work anniversary program and additional vacation days.