Persistent Systems
Senior Architect – Java (with AI / GenAI)
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About Persistent
We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what’s next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.
Our disruptor’s mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We have delivered 21 sequential quarters of growth with $389.7M in Q1 FY26 revenue, up 3.9% Q-o-Q and 18.8% Y-o-Y growth. Our 25,000+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been named the fastest-growing Indian IT services brand in the “Brand Finance India 100” 2025 report. We were also cited as a Leader in the ISG Provider Lens™ 2025 for Digital Engineering Services 2025 and the Everest Group Talent Readiness for Next-generation Application Services PEAK Matrix® Assessment 2025.
We are a fast-growing company (with $1 billion dollars in revenue). Plan to grow at Krakow, Poland. If you’re interested in working on bleeding Data and AI technologies, join us.
Read more - https://www.persistent.com/
About Position and details
Role
Senior Architect – Java (with AI / GenAI)
Location
Cavendish Square, London, W1G 0PW
Mode
Hybrid
Experience
12 to 15 years
Job Type
Permanent role
Primary Skill
Java · Spring · Microservices Architecture
Role Summary
We are seeking a Senior Architect with 12–15 years of experience to own the end-to-end solution and application architecture of enterprise-grade, distributed platforms. This is a hands-on, Java-first architecture role: you will design scalable microservices and event-driven systems, set engineering standards, and lead modernization initiatives while actively embedding Generative AI into the delivery lifecycle.
The ideal candidate is a deep Java technologist and a proven technical leader who pairs strong system-design fundamentals with practical adoption of AI/GenAI tooling. Experience in banking, payments, or financial services is a strong plus.
Key Responsibilities
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- Own end-to-end solution and application architecture for enterprise Java platforms, translating business needs into resilient, scalable designs.
- Design and evolve microservices and event-driven architectures using Spring Boot, Apache Kafka, IBM MQ, and ActiveMQ.
- Define the API strategy across REST, gRPC, and GraphQL with schema-driven, contract-first design (OpenAPI/Swagger).
- Drive cloud-native design on AWS and/or Azure/GCP, including containerization and orchestration with Docker, Kubernetes, and Helm.
- Establish and enforce engineering standards — design patterns, clean architecture, domain-driven design, coding standards, and code reviews.
- Adopt and champion Generative AI tooling (GitHub Copilot, SASVA, OpenAI Codex, Claude Code) to accelerate development, documentation, and application modernization.
- Integrate AI/ML and RAG-based capabilities into enterprise applications where they add measurable value.
- Own non-functional requirements — scalability, high availability, resiliency, security, performance, and observability.
- Lead legacy modernization, re-platforming monoliths into scalable, maintainable microservices.
- Provide technical leadership and mentorship; upskill engineers and grow the technical bench.
- Collaborate with product managers, business stakeholders, QA, and DevOps to plan deliverables and timelines.
- Safeguard quality, security, and performance through reviews, automated testing, and static analysis.
Must-Have Skills — Primary (Java)
- 12–15 years in software engineering, including 4+ years in an architecture or technical-lead capacity.
- Core Java: deep expertise in Java 11/17+, concurrency, multithreading, collections, and functional programming.
- Spring ecosystem: Spring Boot, Spring MVC, Spring Integration, Spring Security, and Spring Batch.
- Architecture: microservices, design patterns, clean architecture, and domain-driven design.
- Event-driven & messaging: Apache Kafka, IBM MQ, ActiveMQ, JMS, and Pulsar / Event Hubs.
- APIs: REST, gRPC, GraphQL, and OpenAPI/Swagger.
- Databases: relational (PostgreSQL, MySQL, Oracle, SQL Server) and NoSQL (MongoDB, Redis, Cassandra, DynamoDB, Cosmos DB).
- Cloud & containers: AWS and/or Azure/GCP; Docker, Kubernetes, and Helm.
- CI/CD & DevOps: Jenkins, GitLab CI, Git, and Maven; code quality with SonarQube and Snyk.
- Testing: JUnit, Mockito, and integration/contract testing.
- Security: Spring Security, JWT, TLS/SSL, and mutual TLS.
- Non-functional design: high availability, scalability, resiliency, performance tuning, and observability.
Additional Skills — Artificial Intelligence / GenAI
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- GenAI developer tooling: hands-on with GitHub Copilot, OpenAI Codex, Claude Code, and SASVA for code generation and modernization.
- RAG & LLM integration: experience with Retrieval-Augmented Generation frameworks, prompt engineering, and integrating LLMs into applications.
- AI-accelerated delivery: applying GenAI to code generation, documentation, knowledge retrieval, and test automation.
- AI/ML fundamentals: sound understanding of core AI/ML concepts and integrating AI-enabled features and services into Java applications.
- Vector stores (nice to have): familiarity with embeddings and vector databases.
Good to Have — Banking / Financial Services
- Domain experience across banking, capital markets, payments, or financial services / insurance.
- Financial messaging standards: ISO 20022, ISO 8583, CBPR+, pacs.008 / pacs.009, and camt.
- Payment rails & networks: Fedwire Funds Service, FedNow, and networks/gateways such as Mastercard and PayPal.
- Compliance & rules: AML/sanctions screening (e.g., FircoSoft), rules engines (Drools), and compliance-driven processing.
- Transaction systems: real-time / high-value transaction processing, reconciliation, order management systems, and mutual-fund / DTCC integrations.
Leadership & Soft Skills
- Technical mentorship and a track record of upskilling engineering teams.
- Ability to communicate complex technical concepts clearly to both technical and non-technical audiences.
- Strong ownership, structured problem-solving, and a relentless focus on quality.
- Disciplined documentation of systems, processes, and standards.
Education & Certifications
- Education: Bachelor's or Master's degree in Computer Science, Engineering, or an equivalent discipline.
- Certifications (nice to have): cloud architect certification (AWS / Azure) and relevant Java or architecture credentials.
Benefits
- Competitive salary and benefits package
- Culture focused on talent development with quarterly promotion cycles and company-sponsored higher education and certifications.
- Opportunity to work with cutting-edge technologies.
- Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
- Annual health check-ups
- Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents
Let’s unleash your full potential at Persistent - persistent.com/careers.
“Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.”
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