Application engineering
Microservices and hexagonal architecture. Business rules, APIs and service integration.
Java 17/21, Spring Boot, Python, Go
Software engineer
Anas Bouarafa
Java, backend
& cloud engineering.
Based in Paris, with 6+ years building Java / Spring Boot services, Kafka data flows and cloud systems for investment banking and energy.
Experience with
01 / Professional experience2020 — Today
Experience in
banking & energy.
Counterparty risk. Financial crime. Energy networks. Software built around the details that matter to a business.
2025 — PresentCurrentSociété Générale CIBBackend EngineerCounterparty risk & margin calls
Developing Java microservices for exposure calculation and aggregation, with Kafka flows connecting market data, calculation results and margin-call processing.
- Integrating services with Oracle and Apache Camel, with Python and Pandas in the data stack.
- Delivering through Jenkins and XL Deploy, with Vault for secrets management.
- Working with Risk, Finance and Front Office teams on indicators and regulatory releases.
2023 — 2025Crédit Agricole CIBJava / Data EngineerSecuritisation platform redesign
Rebuilt applications around hexagonal microservices. Migrated Excel-held data to MongoDB, centralised calculation logic and connected services through Kafka events.
- Separated domain, application and infrastructure through ports and adapters.
- Recovered historical transactions, ran backtesting and automated acceptance scenarios with Cucumber.
- Delivered with GitLab CI, Docker, Kubernetes and Argo CD; supervised services with Elasticsearch and Kibana.
2022 — 2023BNP ParibasCloud / DevOps Engineer · via FinaxysFinancial crime systems on private cloud
Migrated anti-money-laundering systems to Java microservices on private IBM Cloud, including an Oracle-to-MongoDB data-model redesign.
- Recovered historical data using Kafka Connect and built event flows with Kafka Streams and Apache NiFi.
- Implemented Docker/Kubernetes delivery, GitLab CI pipelines and infrastructure as code with Terraform.
- Managed secrets with Vault and monitored applications and infrastructure with Splunk and Sysdig.
2020 — 2022EnedisSoftware Engineer · via CapgeminiGeospatial data for the electricity network
Built Java and Python services for bulk DGN plan imports and exports, alongside GeMap’s ETL pipeline for geographic data in Oracle and PostGIS.
- Developed backend services with Spring Boot and Flask.
- Monitored exchanges with other Enedis systems to help investigate data-flow anomalies.
- Used test-driven development, Docker and continuous delivery in Scrum/SAFe teams.
02 / Engineering rangeDomain → Delivery
From domain logic
to delivery.
I work across the boundaries: business logic, the data moving between services, and the infrastructure that keeps them running.
Events & data
Event-driven communication, stream processing, historical-data recovery and ETL pipelines.
Kafka, NiFi, Oracle, PostgreSQL, MongoDB
Cloud & delivery
Container platforms, CI/CD, infrastructure as code, secrets management and observability.
Kubernetes, Docker, AWS, IBM Cloud, Terraform
03 / A little about meA bit more
A bit more
about me.
Paris, France
French · English
Based in Paris, I work at the intersection of software, data and infrastructure. I enjoy the part of engineering where understanding a business problem changes how you design the system.
My experience spans counterparty risk, securitisation, financial crime compliance and electricity-network data. I work with both business and technical teams, from design through release.
Education
Master’s in Computer Science · ICS
ISIMA · Clermont-Ferrand
Data Science and KnowledgeEngineering degree in Computer Science
ENSIAS · Rabat
Web Engineering and Web Intelligence04 / Independent products
01 / 05
folio.
PDF editor for WindowsPreview 0.9A PDF editor with local AI.
An editor I’m building to work directly with PDF text, fonts and pages. All document processing stays on your computer.
Local AIRewrite, shorten or translate selected text with an optional on-device model.
React / TypeScriptTauri / RustC++ / MuPDFllama.cpp
ICT Trading.
Market analysis & backtestingIndependent projectFrom live prices to strategy evaluation.
A trading research engine that streams market data, detects market structure across timeframes and evaluates configurable strategies against historical prices.
WebSocket ingestion, time-series storage and trade-by-trade backtest results.
Java / Spring BootTimescaleDBWebSocketsTA4J
Hyperledger.
Banking prototypeIndependent projectShared workflows for settlement and margin.
A Hyperledger Fabric banking prototype for treasury-versus-cash settlement, margin calls and collateral. Java smart contracts connect to a Spring Boot API and a React operations console.
Bilateral call tracking, settlement-plan approval and collateral posting.
Hyperledger FabricJavaSpring BootReact
Workflow Manager.
Workflow runtime & risk platformIndependent projectOrchestrating work that spans systems and people.
A durable Java workflow engine with versioned definitions, worker tasks, approvals, timers and event history. A counterparty credit risk application uses it to coordinate limits, margin calls and disputes.
Reusable Java SDK, PostgreSQL persistence and a React operations interface.
Java 21Spring BootPostgreSQLReact / TypeScript
PEA Analysis.
Equity research prototypeIndependent projectEuropean equities, with the data behind the numbers.
A research workspace for screening European equities, comparing fundamentals and exploring portfolio allocations. Financial metrics retain their source and quality status, with ingestion and analysis handled in the background.
Company screening, financial ratios and explainable portfolio construction.
Next.js / TypeScriptFastAPI / PythonPostgreSQLPolars
05 / What’s next
Open to collaboration
Contact.
Projects, collaborations and technical conversations.