[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Citigroup jobs](https://jobs.opennash.com/companies/citigroup/) · [Search jobs](/search/) Citigroup · Mississauga Ontario Canada # Senior Java Developer Solution Architect - Vice President Mississauga Ontario Canada Full-time Executive $120,800.00 - $170,800.00 Software Engineering Listed on Citigroup’s official careers site. Posted October 19, 2026. Check that it is still open and apply there. [Apply on Citigroup’s careers site →](https://citi.wd5.myworkdayjobs.com/2/job/Mississauga-Ontario-Canada/Senior-Java-Developer-Solution-Architect---Vice-President_261000687) [OpenNash Jobs](https://jobs.opennash.com/) / [Citigroup](https://jobs.opennash.com/companies/citigroup/) / Senior Java Developer Solution Architect - Vice President ## Job description ### Role Summary We’re seeking a seasoned Senior Java Developer Solution Architect with 6+ years of experience to lead end-to-end technical design and delivery of mission‑critical systems. You will own architecture decisions, drive engineering excellence, mentor senior engineers, and partner with product, security, and platform teams to build scalable, reliable, and secure distributed systems. ### Key Responsibilities Architecture & Design Define and evolve system architecture for cloud-native, microservices/event-driven platforms (scalability, resilience, security, cost). Create high-level and low-level designs, integration patterns, API contracts, and reference implementations. Lead design reviews; ensure alignment with domain-driven design (DDD), 12‑factor principles, and organization standards. Engineering Leadership Lead squads through full SDLC —from discovery and PoCs to production and SRE handoff. Establish coding standards, code review practices, and secure-by-default patterns. Mentor and coach senior engineers; support career growth and succession of technical leaders. Hands-on Development Build core services using Java (17+), Spring Boot, REST/GraphQL, and message/event streaming. Optimize for performance, concurrency, observability, and operational excellence (SLOs, error budgets). Drive quality with unit/integration/contract testing, test data strategy, and automated quality gates. Cloud & Platform Design for AWS/Azure/GCP, container orchestration ( Kubernetes), service mesh, and CI/CD. Implement infrastructure-as-code (IaC) patterns and secrets management. Partner with SRE/Platform teams on monitoring, alerting, logging, tracing, and cost governance. Data & Integration Architect integrations across SQL/NoSQL, caching (Redis), and event streams (Kafka/Pulsar). Define data contracts, schema evolution strategies, and idempotent/eventual consistency patterns. Security & Compliance Embed AppSec best practices, OWASP controls, secure API/auth (OAuth2/OIDC), and zero trust patterns. Ensure compliance with regulatory and audit requirements where applicable. Stakeholder Partnership Translate business needs into technical roadmaps and architecture runway. Communicate trade-offs and decisions to both technical and non-technical audiences. ### GenAI Knowledge of MCP, A2A, Agentic Architecture Required Qualifications: 6+ years of progressive experience building enterprise systems, with 6+ years in Java and Spring at scale. Proven delivery of cloud-native, microservices, and event-driven architectures. Strong expertise in: Java 11/17+, Spring Boot, Spring Cloud REST/GraphQL APIs, gRPC (nice-to-have) Kafka (or Pulsar), Kubernetes, Docker RDBMS (PostgreSQL/MySQL/Oracle) and NoSQL (MongoDB/Cassandra/DynamoDB) Caching (Redis), CI/CD (GitHub Actions/Azure DevOps/Jenkins), IaC (Terraform/ARM) Observability (OpenTelemetry, Prometheus/Grafana, ELK), feature flags /progressive delivery Solid grasp of concurrency, performance tuning, resiliency patterns (circuit breakers, retries, bulkheads), and fault-tolerance. Demonstrated leadership of architectural forums, design reviews, and mentorship. Strong communication and stakeholder management skills. ### Nice-to-Have Domain knowledge: Payments, banking, capital markets, insurance, e-commerce, supply chain, or telecom. ### Security Threat modeling, shift-left security, SAST/DAST, secrets rotation, mTLS. ### Data CDC (Debezium), schema registry, exactly-once semantics, streaming ETL. ### Platform Service mesh (Istio/Linkerd), API gateways (Kong/Apigee), Serverless (Lambda/Functions). ### Modern patterns CQRS, event sourcing, Saga orchestration, hexagonal architecture. ### Education Bachelor’s degree/University degree or equivalent experience ------------------------------------------------------ Job Family Group: Technology ------------------------------------------------------ Job Family: Applications Development ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location Full Time Salary Range: $120,800.00 - $170,800.00 ------------------------------------------------------ Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------ Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Automated Processing and AI We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi. Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details. ------------------------------------------------------ This job opening is for an existing job vacancy. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster. ## At a glance - Posted by the employer: Oct 19, 2026 - First seen by OpenNash: Oct 20, 2026 - Last checked: Oct 20, 2026 - Listed for: 1 day - Location: Mississauga Ontario Canada - Employment type: Full-time - Pay: $120,800.00 - $170,800.00[Apply on Citigroup’s careers site →](https://citi.wd5.myworkdayjobs.com/2/job/Mississauga-Ontario-Canada/Senior-Java-Developer-Solution-Architect---Vice-President_261000687) ## More jobs at Citigroup ### [AI-Augmented Full-Stack Engineer - Vice President](https://jobs.opennash.com/companies/citigroup/jobs/d357b86dc6b2839ee256/) Mississauga Ontario Canada ### [AVP Full Stack Java/Angular Developer](https://jobs.opennash.com/companies/citigroup/jobs/2336b8c1545a09a4d34e/) Mississauga Ontario Canada ### [AVP, Fullstack Developer (Applications Development Sr Programmer Analyst) - C12 - MISSISSAUGA](https://jobs.opennash.com/companies/citigroup/jobs/dd5fe5f59c8b938c5e22/) Mississauga Ontario Canada ### [AVP, Software Engineer (Hybrid)](https://jobs.opennash.com/companies/citigroup/jobs/925de499c1eec69aa06a/) Mississauga Ontario Canada ### [Application Development Technical Lead Analyst Developer Vice President Conversion](https://jobs.opennash.com/companies/citigroup/jobs/8d346d5f462e2fe9cfca/) Mississauga Ontario Canada ## Similar jobs at other companies ### [Z5_Java Solution Architect](https://jobs.opennash.com/companies/ntt/jobs/18acaed133e07fbdcdfe/) NTT · Bangalore, KA, IN, India ### [Solution Architect- Java Expertise](https://jobs.opennash.com/companies/ntt/jobs/6434d2c4440c072c6ef3/) NTT · Ho Chi Minh, Hồ Chí Minh, Vietnam ### [Senior Software Developer – Java Full stack (Java + Angular + OracleDB)](https://jobs.opennash.com/companies/siemens/jobs/8bf734b2da72dd83953e/) Siemens ### [Java Solution Architect](https://jobs.opennash.com/companies/tata-consultancy-services/jobs/984a5c6e3b2c268e1935/) Tata Consultancy Services · Trivandrum ### [Java Developer](https://jobs.opennash.com/companies/vodafone/jobs/7ed209e9d55fb339eb1f/) Vodafone · Bucuresti, Romania OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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