Senior Software Engineer (Java)

Why Join Keystone AI We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks. From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next. What powers it all? Our people are ambitious, collaborative, and constantly evolving. About the Client A leading North American financial services provider operating across personal, commercial, wealth management, and capital markets sectors. Following recent strategic acquisitions, the top-tier bank has significantly expanded its international footprint. Now executing an "AI-first" strategy, the organization has launched a dedicated institute for applied AI and quantum computing to drive productivity and deliver hyper-personalized digital experiences for millions of global customers. What You’ll Do Design and develop scalable backend services using Java. Build integrations between internal platform services and external applications using APIs, messaging platforms, and event-driven architectures. Translate business requirements into technical designs and implementation plans. Develop, test, deploy, and maintain high-quality software throughout the full SDLC. Troubleshoot production issues and perform preventative and corrective maintenance. Ensure solutions meet security, logging, monitoring, performance, and reliability standards. Create technical documentation and contribute to system design discussions. Evaluate new technologies and recommend improvements across the application ecosystem. Participate in release management processes and maintain version control best practices. Collaborate across engineering, product, and business teams to deliver enterprise-scale solutions. Provide technical guidance and act as a senior technical resource within the team. What You Bring Senior-level professional Java backend development experience. Strong experience building backend services and enterprise applications. Experience designing and developing REST APIs and system integrations. Strong understanding of messaging systems and event-driven architectures. Experience working with relational databases and SQL. Solid understanding of Software Development Lifecycle (SDLC) best practices. Experience with Test-Driven Development (TDD), automated testing, and quality assurance practices. Strong troubleshooting and debugging skills. Experience translating business requirements into technical solutions. Excellent analytical and problem-solving abilities. Strong verbal and written communication skills. Ability to collaborate effectively across cross-functional teams. Nice to have Experience with cloud platforms (AWS, Azure, or GCP). Financial services, capital markets, or trading platform experience. Experience working with enterprise integration architectures. Familiarity with release management and CI/CD pipelines. Experience evaluating emerging technologies and driving technical improvements. English level Upper-Intermediate Legal & Hiring Information Keystone AI is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more Reasonable accommodations are available to enable individuals with disabilities to perform essential functions Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs Your Benefits at Keystone AI Keystone AI benefits vary by location and contract type. Your recruiter will fill you in on the details. International projects In-office, hybrid, or remote flexibility Medical healthcare Recognition program Ongoing learning & reimbursement Well-being program Team events & local benefits Sports compensation Referral bonuses Top-tier equipment provision Keystone AI Culture We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.