Java Technical Lead

Hallmark Global Solutions Ltd; Memphis (TN); On-site; USD 120,000 - 180,000; Full time

Job summary

Hallmark Global Solutions Ltd in Memphis or Charlotte is seeking a senior backend engineer with Core Java & Spring expertise to design, build and maintain high‑scale services. You will work on RESTful APIs, data persistence, and performance optimization within a modern Java ecosystem.

Office-based role, five days a week, with emphasis on code quality, tests, and DevOps practices using Kubernetes, Docker, and CI/CD, plus exposure to Dynatrace and distributed caching.

Qualifications

• 10+ years of backend software engineering in Java/Spring
• Strong experience with Spring Data JPA / Hibernate and complex mappings
• Proficient in RESTful API design,SOAP/XML, and WebClient
• Hands-on with Kubernetes, Docker, Helm, and CI/CD pipelines
• Familiarity with caching (Redis) and performance tuning
• Experience in banking/financial services domain is a plus

Skills

Java backend expertise

Spring framework

REST API design

DevOps mindset

Communication skills

Tools

Java 21

Spring Boot 3.5.4

Maven

WebClient

Hibernate / JPA

Redis / Redisson

Kubernetes

Docker

CI/CD (GitLab/GitHub Actions)

Dynatrace

Job description

Location- either the Memphis, TN or Charlotte office and will be expected to work from the office five days a week

Fulltime Only

We need top notch resource, Excellent comm skills, there will be a coding test involved

Required Technical Skills

Core Java & Spring

• Java 21 with modern language features (records, sealed classes, pattern matching)
• Spring Boot 3.5.4 and Spring ecosystem (Data JPA, Security, WebClient, AOP, Retry)
• Maven for build and dependency management
• Strong understanding of transaction boundaries, lazy loading, and persistence context in JPA/Hibernate

API & Integration Design

• RESTful API design with versioning, status codes, and partial-success semantics
• SOAP/XML parsing and generation (Interpose passthrough experience a plus)
• WebClient for async HTTP integrations with resilience patterns
• Experience with circuit breakers, retries, and timeouts (Resilience4j or equivalent)
• Understanding of idempotency and request deduplication in distributed systems

Data & Persistence

• Spring Data JPA / Hibernate with complex mappings, composite keys, and cascading behavior
• Ability to reason about query performance, N+1 problems, and connection pooling
• Experience with database migrations and schema evolution

Caching & Performance

• Redis and Redisson for distributed caching
• Cache invalidation strategies and TTL management
• Performance profiling and optimization

Testing & Quality

• Writing unit, service, and integration tests that verify behavior
• Checkstyle and code quality enforcement
• Familiarity with JUnit 5, Mockito, and MockWebServer

DevOps & Infrastructure

• Kubernetes / AKS cluster management and deployment strategies
• Helm charts design, templating, and values management across environments
• Docker containerization, image optimization, and security scanning
• CI/CD pipelines (GitLab CI, GitHub Actions, or equivalent)
• Infrastructure-as-Code (IaC) principles and tools
• Azure services: Key Vault, SQL Database, Container Registry, managed identity
• mTLS and certificate-based authentication in Kubernetes
• Deployment automation, blue-green deployments, and rollback strategies
• Pod security policies, network policies, and RBAC in Kubernetes

Observability & Operations

• Dynatrace for APM, log analysis, and trace investigation
• DQL (Dynatrace Query Language) for custom metrics and dashboards
• Understanding of SLOs, error rates, and latency analysis
• Ability to read and interpret production logs without exposing PII
• Health checks, readiness probes, and liveness probes in Kubernetes
• Metrics collection and monitoring strategy
• Azure services: Key Vault, SQL Database, Container Registry, managed identity
• Kubernetes / AKS deployment concepts, scaling, and resource management
• Docker containerization and image management
• Container registries and image scanning
• Network configuration and service mesh concepts (optional but valued)

Preferred Qualifications

• 10+ years of backend software engineering in Java/Spring
• 3+ years of DevOps, SRE, or infrastructure engineering experience
• Experience with banking or financial services domain (profiles, accounts, entitlements, audit)
• Familiarity with APIGEE API gateway or similar
• Hands-on experience with Helm charts in production environments
• Experience with Kubernetes in production (AKS, EKS, or GKE)
• Knowledge of GitOps practices and tools (ArgoCD, Flux)
• Experience with Databricks for audit reporting or analytics
• Knowledge of PowerShell for operational scripting
• Contributions to open-source projects or published technical writing
• Experience with incident response and RCA (root cause analysis) documentation
• Familiarity with container security and image scanning tools