Senior Java Developer (with AWS)

Company Description

For the 2nd consecutive year, Talan Poland has been recognized as a Great Place to Work! 🎉This is a significant milestone since opening our office there in 2023.

Talan is an international consulting and technology expertise group, with 6,600 employees and an annual turnover of 830M€.

We offer our customers a continuum of services to support them at each key stage of their organization’s transformation, with four main activities:

• CONSULTING in Management and Innovation: Supporting business, managerial, cultural, and technological transformations.
• DATA & TECHNOLOGY: Implementing major transformation projects.
• CLOUD & APPLICATION SERVICES: Building or integrating software solutions.
• CENTERS of EXCELLENCE: Providing technology, innovation, agility, sustainability of skills, and cost optimization.

Talan accelerates its clients’ transformation through innovation, technology and data.

For 22 years with presence across 21 countries, Talan has been advising and supporting companies and public institutions in implementing their transformation and innovation projects.

Job Description

We are seeking a Senior Java Software Engineer to join our technology team focused on building high-performance, distributed computation systems for financial analytics and risk management and have a deep understanding of security in AWS.

In this role, you will design and implement key components of our cloud-native infrastructure using Java (Spring Boot) and AWS, supporting large-scale workloads such as market simulations, risk engines, and data pipelines. You will also help drive CI/CD, release automation, and system observability, ensuring robust and resilient platforms for critical financial applications.

Key Responsibilities:

• Architect and implement microservices and distributed computing frameworks using Java Spring Boot.
• Build scalable, fault-tolerant systems to support financial risk computations, pricing analytics, and batch/real-time data processing.
• Develop and deploy applications in the AWS cloud using EKS, Lambda, S3, Redis, Docker, Kubernetes, and Airflow.
• Integrate messaging and data streaming with Apache Kafka, and support analytics and monitoring using ElasticSearch, Kibana, and CloudWatch.
• Implement observability and tracing using OpenTelemetry.
• Design and enforce AWS security best practices including IAM roles and policies, security groups, encryption (KMS) and secret management.
• Lead and maintain CI/CD pipelines and automate the release management process across environments.
• Collaborate with DevOps, quant, and data engineering teams to support secure, performant infrastructure.
• Use Jira, Confluence, and Git for project management, documentation, and source control in a highly regulated financial environment.
• Apply best practices in software engineering, testing, and code review, with a focus on accuracy, performance, and compliance.

Qualifications

Required Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.
• 5+ years of experience in Java development with strong knowledge of Spring Boot.
• Deep experience with AWS (S3, Lambda, Redis, EKS, etc.) and containerized environments using Docker and Kubernetes.
• Proven experience working with Kafka, ElasticSearch, and monitoring/observability tools.
• Experience in CI/CD, release engineering, and automation.
• Familiarity with Apache Airflow or StepFunctions for data workflows.
• Hands-on experience with ALM tools like Jira, Confluence, and Git in regulated environments (e.g., financial services).
• Strong understanding of distributed systems, concurrency, and system performance.
• Ability to work effectively in cross-functional teams in an agile environment.

Preferred Qualifications:

• Experience in financial services, especially in domains such as derivatives valuation, XVA, risk engines, or market data processing.
• Knowledge of a second programming language (C++, Rust, Python) is appreciated
• Familiarity with financial data formats and time-series data processing.
• AWS Certification (e.g., Solutions Architect, Developer, or DevOps Engineer).
• Knowledge of regulatory and compliance considerations in software delivery.

Additional Information

• Permanent, full-time contract
• Training and career development
• Benefits and perks such as private medical insurance LuxMed, lunch pass card Pluxee, MultiSport Plus card
• Possibility to be part of a multicultural team and work on international projects
• Hybrid position based in Warsaw, Poland
• Possibility to manage work permits