**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 growth opportunities 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
**App

Sec**
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
**7+ 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**
(Git

Hub Actions/Azure Dev

Ops/Jenkins),
**IaC**
(Terraform/ARM)
**Observability**
(Open

Telemetry, 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
Master’s degree preferred
This job description provides a high-level review of the types of work performed.

Other job-related duties may be assigned as required.
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**Job Family Group:**
Technology
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**Job Family:**




Applications Development
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**Time Type:**
Full time
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**Primary Location Full Time Salary Range:**
$120,800.00 - $170,800.00
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**Most Relevant Skills**
Please see the requirements listed above.
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**Other Relevant Skills**
For complementary skills, please see above and/or contact the recruiter.
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**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.
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_This job opening is for an existing job vacancy._
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_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 (https://www.citigroup.com/citi/accessibility/application-accessibility.htm)_
_._
_View Citi’s_
_EEO Policy Statement (https://www.citigroup.com/global/eeo-aa-policy)_
_and the_
_Know Your Rights (https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_Know

Your

Rights6.12Screen

Rdr.pdf)_
_poster._
Citi is an equal opportunity and affirmative action employer.

Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.

📌 Senior Java Developer Solution Architect - Vice President (Mississauga)
🏢 Citigroup
📍 Mississauga