Senior Software Engineer

Luxoft; New York (NY); On-site; USD 120,000 - 200,000; Full time

Job summary

Luxoft is seeking a Senior Software Engineer to lead backend design and modernization of mission-critical systems in the Markets line. You will own architecture, drive integrations, and deliver scalable Java/Spring services for Auctions, Trading, Operations Planning, and Rates Production products.

Ideal candidates have 5+ years in production software engineering, strong Java/Spring expertise, and a track record of delivering high-uptime, scalable solutions in financial services.

Qualifications

• 5+ years of production software engineering across multiple products.
• Deep Java & Spring expertise with REST and microservices design.
• Experience with RDBMS (Oracle, PostgreSQL) and data modeling.
• Proficient in CI/CD and Agile practices for fast-paced delivery.

Responsibilities

• Lead backend design and modernization of production-grade services.
• Own cross-squad integration layers and APIs for multiple domains.
• Drive performance, scalability, and operational excellence in production.

Skills

Java

Spring Framework

Backend architecture

Microservices

Kafka

Cloud: AWS

CI/CD

SQL databases

Leadership

Communication

Education

BS in Computer Science or related field

MIS

Tools

Kafka

AWS

Docker

Kubernetes

Terraform

Job description

Project description

Luxoft has one of the world's leading Calypso practice. We are a top-tier Calypso Partner and a market leader in implementation, integration, upgrade, and migration. We provide end-to-end project services and have delivered Calypso projects across all major asset classes and sectors including investment banking, asset management, corporate treasury, and insurance. Project Description: Implementation of Fixed Income Desk on existing Calypso instance. Compensation for NYC: 120000-200000 USD Gross per year based on your interview results. Salary for other locations dependent on experience and market standards

Responsibilities

• We are seeking an experienced Senior Software Engineer to lead the design, development, and modernization of mission-critical backend systems within our Markets Business line. In this role, you will operate as a senior technical leader and high-impact individual contributor, taking full ownership of complex integrations, business operations workflows, and system modernization initiatives across multiple domains including Auctions, Trading, Operations Planning, and Rates Production products. This position is ideal for a senior engineer who thrives on solving complex technical challenges in a fast-paced environment, building new features collaboratively across multiple products, while also strategically modernizing existing systems to meet modern engineering standards. You will work cross-functionally with different squads, championing technical excellence and driving architectural decisions that impact the entire Markets business line. What You Will DoArchitecture & Development Leadership Design, architect, and deliver robust, production-grade backend services, APIs, and mid-tier integrations using Java and the Spring ecosystem Take full technical ownership of business-critical services from architectural design through production deployment Turn complex business requirements into scalable technical designs, making critical engineering trade-offs independently Champion architectural patterns and best practices across multiple squads and products Modernization & Technical Excellence Evaluate and strategically re-engineer internal code bases to modern standards and cloud-ready architectures Identify technical debt and lead refactoring initiatives without causing production downtime Maintain code excellence through rigorous testing strategies, deep code reviews, and continuous improvement Build systems for failover, disaster recovery, and maximum operational stability under heavy data loads Cross-Product Integration & Collaboration Build new features collaboratively across multiple products and domains within Markets Business Design and implement secure, scalable integration layers connecting core platforms with third-party vendor systems and enterprise platforms Deliver APIs, mid-tier integration, and backend functionality for trading, operations, and auction workflows Work effectively with different squads, contributing across multiple development stacks and technologies Performance & Scale Optimize application performance, ensure high availability, and manage data consistency across distributed architectures Build event-driven, low-latency systems capable of handling high-throughput transactional workloads Design for scale, resilience, and operational excellence in production environments Our Engineering CultureWe value engineers who: Take ownership and drive technical initiatives to completion Balance pragmatism with technical excellence Communicate effectively across technical and business stakeholders Continuously learn and adapt to new technologies Mentor and elevate engineering practices across teams Thrive in fast-paced, collaborative environments

SKILLS

Must have

• BS in Computer Science, MIS, or similar technical field
• 5+ years of production software engineering experience with demonstrable success across multiple products simultaneously
• Advanced Java & Spring Expertise Deep understanding of core Java (8-21), JVM internals, memory management, concurrency, and performance tuning Extensive production experience with Spring ecosystem: Spring Boot, Spring Data, Spring MVC, Spring Security, Spring Core Integration & System Design Proven ability to design and implement interfaces and integrations incorporating established best practices Strong experience designing integration layers, handling complex data translations, and API design (RESTful) Experience building decision support applications for operations and trading in the financial industry
• Distributed Systems & Messaging Proven track record building scalable microservices and event-driven architectures Production experience with Kafka/Amazon MSK for streaming and messaging patterns
• Data & Infrastructure Strong experience with RDBMS (Oracle, PostgreSQL) including schema design, query optimization Experience with middle-tier caching solutions (Redis, Elasticache) Production experience with App/Web servers (Tomcat, JBoss, etc.)
• Modern Engineering Practices Knowledge and use of Agile methodologies (e.g., Scrum) Test-Driven Development AND Behavior Driven Development (TDD/BDD) Experience using Continuous Integration and Deployment tools (GitLab/GitHub, pipeline maintenance)
• Leadership & Autonomy Demonstrated ability to take vague product requirements and independently design and deliver complete, secure technical solutions Strong analytical and communication skills with ability to influence technical direction Willingness to contribute and lead across multiple development stacks, areas, and technologies
• Preferred Experience & Technologies Transformation & Modernization Proven track record of successfully refactoring and modernizing large-scale legacy code bases Building and testing systems end-to-end with focus on zero-downtime deployments
• Cloud & DevOps Hands-on experience with AWS services: IAM, S3, CloudFront, Secrets Manager, EC2, ECS, ALB, RDS, Elasticache, MSK, AmazonMQ Containerization & Orchestration Docker, Kubernetes, ECS Infrastructure as Code Terraform CI/CD pipeline design and maintenance
• Additional Technologies Testing frameworks: Playwright or similar E2E testing tools High-throughput transactional systems in financial services Query optimization and database performance tuning

Nice to have

• Ability to work under pressure in a fast-paced environment is essential.
• Have a willingness to learn new skills
• Must have attention to detail
• Must have the ability to work independently and also as part of a group
• Experience of Agile practices and processes (e.g. SCRUM, KANBAN)
• Experience with middle/back office financial platforms (e.g., Calypso)
• Any technical knowledge (Writing simple sql query, be able to read code )
• Conflict management ensuring collaborative outcomes
• Excellent attention to detail and accuracy