Java developer Jobs in Detroit, MI

Job#: 3029311

Job Description:

Java API Developer (back end)

Location: DEARBORN, Michigan (Partial Remote)

Employment Type: Contract

Position Description

Employees in this role are responsible for designing, building, and operating high-throughput backend systems that ingest, process, and serve large volumes of telematics data from connected vehicle fleets.

They work at the intersection of distributed systems, data engineering, and API development—delivering reliable, low-latency services that power fleet intelligence products for commercial and enterprise customers.

• Design and develop scalable, high-performance backend services and APIs that process and expose telematics data—including GPS, trip events, driver behavior, vehicle diagnostics, and sensor telemetry—at fleet scale.
• Build and maintain real-time and batch data pipelines that ingest high-volume vehicle event streams from messaging systems (, Pub/Sub, Kafka) into data warehouses and operational stores.

Skills Required

• GCP (Google Cloud Platform)
• Experience deploying and managing services on GCP, including Compute Engine, Cloud Storage, IAM, and Cloud Functions.
• Example: Designing and implementing a cloud-native application architecture using GKE (Google Kubernetes Engine) with Cloud SQL and Pub/Sub.
• Big Data
• Experience working with large-scale data processing frameworks such as Apache Spark, Dataflow, or BigQuery.
• Example: Building ETL pipelines that process terabytes of daily event data and transform it for downstream analytics.
• Artificial Intelligence & Expert Systems
• Experience developing or integrating AI/ML models and rule-based expert systems.
• Example: Building a classification model using Vertex AI to predict customer churn, or implementing a rule engine that automates underwriting decisions.
• API Development
• Experience designing, building, and consuming RESTful or gRPC APIs.
• Example: Developing a versioned REST API with OAuth authentication that serves as the integration layer between a mobile application and backend microservices.

Skills Preferred

• Google Cloud Platform
• Familiarity with advanced GCP services beyond core compute and storage, such as Vertex AI, Dataflow, Cloud Composer (Airflow), and BigQuery ML.
• Example: Using Cloud Composer to orchestrate scheduled data pipelines that feed into a BigQuery data warehouse.

Experience Required

• Senior Engineer level experience
• Practical experience in two coding languages, or advanced proficiency in one language
• Ability to guide others
• 7+ years in IT
• 5+ years in development

Experience Preferred

• Languages: Kotlin, Java, Python, or equivalent JVM/backend language
• Frameworks: Spring Boot, gRPC, REST API design
• Data: BigQuery, PostgreSQL, Redis, Bigtable, Kafka, or Pub/Sub
• Infrastructure: GCP (or equivalent), Docker, Kubernetes, CI/CD pipelines
• Practices: TDD, MLOps-adjacent data pipeline patterns, database performance tuning, API versioning

Education Required

• Bachelor’s Degree

Education Preferred

• Certification Program

Additional Information

Position is hybrid – 4 days per week in the office

• Architect and optimize data access layers across heterogeneous storage systems—including relational databases (PostgreSQL, Cloud SQL), columnar warehouses (BigQuery), in-memory caches (Redis), and wide-column stores (Bigtable)—selecting the appropriate store for each access pattern.
• Collaborate with data engineers and analysts to design stored procedures, views, and query patterns in analytical databases that meet strict latency and throughput SLAs for reporting endpoints.
• Implement data aggregation, transformation, and enrichment logic—including time-series rollups, geo-spatial calculations, and unit/timezone conversions—to produce accurate, consistent reporting outputs.
• Build and enforce data contracts and schema evolution strategies to ensure backward compatibility and stability across upstream producers and downstream API consumers.
• Integrate backend services with cloud-native infrastructure (GCP, AWS, or Azure), including event-driven architectures, scheduled jobs, serverless functions, and container orchestration platforms (Kubernetes/GKE).
• Instrument services with observability tooling—structured logging, distributed tracing, and metrics—and participate in on-call rotations to maintain high availability and reliability targets (SLO/SLA).
• Apply security best practices, including authorization scoping (, segment- or fleet-scoped data access), secrets management, and data privacy controls in compliance with automotive and enterprise data regulations.
• Partner with product, data science, and platform teams in an agile delivery model—contributing to technical design reviews, code reviews, and architectural decisions for new capabilities on the telematics platform.

Compensation & Benefits

The pay rate for this position is between $ and $ per hour. Please note that the pay rate may be negotiable depending on experience and qualifications. A comprehensive benefits package may be available to eligible employees.

We are an equal opportunity employer and welcome applications from all qualified candidates regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

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Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.

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