01
Mindera · FanDuel Racing
TVG Racing
Microservices supporting live horse-racing wagering, payments, wallets, real-time data and high-traffic events.
Read TVG case study →
Focus
27 services · 4 environments · live-event reliability
Senior Backend Engineer
India · Remote worldwide · Relocation · USA (H1B)
I build backend systemsthat stay calm under pressure.
Java, Spring Boot, AWS and event-driven architecture—designed for live traffic, strong consistency and teams that need to move with confidence.
7+Years of backend engineering
5M+Users supported at scale
35+Services developed & modernized
Java Kafka AWS
Engineering for real-world pressure
Millions of users.
Live-event traffic.
Systems that cannot afford to fail.
I design backend platforms where reliability is not a feature added later—it is the starting point.
Selected systems
Work built for scale.
Four professional chapters spanning live-event platforms, university operations and enterprise modernization.
02
Mindera · FanDuel
Super6
Akka-based Java administration and sports-prediction infrastructure serving a product with more than five million users.
View Super6 experience →
Impact
5M+ users · 10 Lambdas · 6 infrastructure stacks
03
Infosys · UK insurance client
BRIT Insurance
.NET, SharePoint, Oracle and Unix-based solutions that replaced manual insurance operations with faster, controlled digital workflows.
View Infosys experience →
Impact
5 processes automated · 2–3 days reduced to 2–4 hours
04
Northeastern University
Office of Global Services
Internal digital platforms, SharePoint solutions, React interfaces and Node.js services supporting international-student workflows.
View Northeastern experience →
Value
2 sites · 1 React calendar · cloud delivery
Personal projects
Systems built to explore production-grade architecture.
Independent projects that turn backend concepts into deployable systems, infrastructure and observable workflows.
01 · Active build12-week roadmap
BharatPayOPS
A production-minded payments and operations platform designed around explicit service boundaries, idempotent transactions, auditability, reconciliation and operational readiness.
Clients→API Gateway→Domain services→Kafka→Ledger & audit
8Planned core modules
12Weeks from foundation to scale
3Core principles: idempotency, auditability, observability
02 · AWS cloud projectNode.js · Infrastructure as code
AWS Bill Management System
Token-based REST APIs for bill creation and lifecycle management, deployed as a highly available AWS application with automated delivery and event-driven email notifications.
ALB→EC2 Auto Scaling→Express APIs→RDS·SNS → SQS → Lambda → SES
RESTToken-protected bill APIs
HAALB + Auto Scaling Group
Fan-outSNS/SQS events triggering Lambda and SES
Engineering knowledge hub
Go beyond the résumé.
Thirty crawlable engineering articles, searchable case studies and technical notes turn project claims into architecture, trade-offs and lessons that engineering teams can evaluate.
01 · Case studies
Projects with context
Architecture, responsibilities, trade-offs, technologies and measurable outcomes.
Explore projects ↗ 02 · System designPatterns under pressure
Event-driven flows, idempotency, data ownership, observability and graceful degradation.
Explore architecture ↗ 03 · Engineering notes30 production-minded engineering notes
Thirty practical articles across Java, Spring Boot, Kafka, databases, AWS and system design.
Read insights ↗ 04 · SearchFind any detail
Search projects, employers, technologies, architecture decisions and articles.
Search the site ↗Inside the system
Architecting for scale.
A simplified view of the patterns behind a high-traffic wagering platform: controlled entry points, focused domain services, asynchronous events, explicit data ownership and observability throughout.
Swipe horizontally to inspect the full architecture
Capability index
What I bring to the system.
Select a capability to reveal the work, tools and engineering concerns behind it.
Service boundaries, REST and GraphQL APIs, transactional workflows, persistence, testing and production ownership across Java, JavaScript and Python ecosystems.
Java 17Spring Boot 3Spring MVCHibernate / JPAAkkaNode.jsExpress.jsPythonShellRESTGraphQLOpenAPI
Asynchronous processing, idempotency, failure isolation, event propagation, ordered transaction streams, cache coherence and graceful degradation under live-event pressure.
KafkaKafka StreamsRabbitMQSQSSNSRedis Pub/SubAkkaWebSocketsTransactional outboxRetriesDead-letter queuesCorrelation IDs
Cloud infrastructure, containerized deployment, serverless automation, security controls, secrets, configuration and operational readiness across AWS, Azure and GCP.
EC2IAMELBRDSS3LambdaAPI GatewayCloudFormationECSEKSFargateCloudFrontCloudWatchCloudTrailKMSAzureGCP
CI/CD modernization, deployment confidence, container orchestration, secrets management, centralized logs, dashboards, alerts and incident-focused observability.
DockerKubernetesArgoCDJenkinsAzure DevOpsGradleMavenJFrogSonarVaultDatadogGrafanaELKElasticsearchGitHub
Translating product requirements, reviewing architecture, mentoring teammates and coordinating delivery across backend, frontend, QA, product and operations.
MentoringDesign reviewsProduct partnershipDocumentationAgile / ScrumJiraIncident supportCross-functional delivery
Relational transaction models, document-oriented application data, key-value access, caching, reporting and query performance across operational workloads.
PostgreSQLMySQLOracle / PL/SQLMongoDBDynamoDBMariaDBRedisMemcachedElasticsearchRDSRedshift
Secure API design and integration with identity, payments, content, messaging and enterprise platforms through stable contracts and failure-aware gateways.
REST / JSON / HTTPGraphQL FederationOAuth2JWTSwagger / OpenAPIMicrosoft GraphBrazePayPalBraintreeWebSocketsThird-party gateways
Automated verification, code-quality gates, integration testing, test doubles and production-safe delivery practices that reduce regression risk.
JUnitMockitoMochaChaiSonarQubeMockServerQuality gatesCode reviewsCI checks
Professional credential
Amazon Web Services Developer - Associate
Validated knowledge across AWS cloud concepts, architecture, security, deployment and operational best practices—supported by hands-on delivery with Lambda, CloudFormation, ECS/EKS, S3, RDS, API Gateway, SQS, SNS and CloudWatch.
Experience
Measured impact across platforms and teams.
From enterprise systems in India to global digital products in Boston and distributed teams—focused on backend reliability, automation and production outcomes.
Full résumé-
2021—2025Remote / Boston
Mindera Software Craft
Backend Java Developer · Mindera (2021—2025) · FanDuel TVG Racing and Super6 engagement
- 35Services modernized across Maven→Gradle, Sonar→JFrog, Vault and GCP→AWS initiatives spanning 4 environments.
- 25%Approximate build-time reduction through dependency, pipeline and build-system modernization.
- 5M+Users supported through the Super6 product, with high availability maintained during major live events.
- 10 + 6Python AWS Lambdas and CloudFormation stacks delivered, reducing recurring manual operations by roughly 40%.
- 2,400/hrHistorical throughput reference for a check-withdrawal path Ripan worked with during his 2024–2025 FanDuel engagement: roughly 2,400 requests/hour at the 2021 Kentucky Derby peak, with QA validation to 6 requests/second using 2 Kafka partitions.
- 202Accepted asynchronous response pattern used for bulk or slow wager flows, allowing status polling without blocking the client while downstream tote processing completed.
- 0Critical outages during supported Kentucky Derby and Breeders’ Cup event windows.
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2019—2020Boston
Northeastern University
SharePoint & Web Developer Part-time · Office of Global Services
- 500+Staff supported through internal workflow and information-access solutions.
- 2SharePoint solutions delivered for internal repositories, version control and operational knowledge management.
- 1React calendar application integrated into the internal experience for clearer scheduling and coordination.
- 3Delivery layers connected through Node.js, MongoDB and Azure CI/CD / Heroku deployment workflows.
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2019Boston
Ahold Delhaize · Retail Business Services
Software Engineer Intern · Lunchbox backend services
- 3K+Users supported by the Lunchbox web and mobile platform.
- 7RESTful backend servers developed with Node.js and MongoDB, containerized with Docker and deployed on Azure.
- 500+Sonar quality issues resolved across the codebase.
- 75%QA-cycle and delivery-efficiency improvement through automated CI checks and Mocha / Chai test coverage.
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2015—2018India
Infosys Limited
Senior Software Engineer · Insurance and enterprise platforms
- 2 + 5Applications delivered: 2 .NET MVC systems for real-time SQL data display and 5 SharePoint / Nintex workflow applications for a UK insurance client.
- 5Manual operational processes automated, reducing turnaround from 2–3 days to approximately 2–4 hours.
- 3Engineers coordinated across design, implementation and delivery activities, with additional work across Oracle PL/SQL and Unix shell automation.
Education
Engineering foundations, expanded through systems.
Formal education spanning electronics, software, cloud computing, data systems and multithreaded application design.
2018—2020
Boston, Massachusetts
Northeastern University
Master of Science in Information Systems
- Algorithms
- Cloud Computing
- Big Data Indexing
- Web Development
- Multithreading
- iOS Development
2011—2015
Pune, Maharashtra
Vishwakarma Institute of Technology
Bachelor of Technology in Electronics & Telecommunication Engineering
- Digital Systems
- Computer Networks
- Programming Foundations
- Communication Systems
- Engineering Mathematics
Interactive résumé
Follow the connections.
Select any project or technology to reveal where it was applied, what it enabled and which systems it connects to.
24interactive nodes
41mapped connections
4flagship systems
Selected
Ripan Halder
Senior Backend Engineer connecting live systems, cloud platforms, data stores and calm technical leadership.
Swipe to explore the full graph
Beyond systems
A life with range.
Travel, fishing, photography, cooking and the outdoors—shown through the original photographs, without retouching.
About Ripan
Technically deep. Calm under pressure. Built for teams.
I am a Senior Backend Engineer with experience across Java microservices, distributed systems and cloud platforms. I care about clean boundaries, production behavior and making complex systems understandable to the people who operate them.
I am currently open to opportunities in India, remote worldwide, hybrid roles and relocation. I also hold a valid H1B visa for eligible US opportunities.
Ask my professional profile
A résumé that answers with context.
This local assistant can explain my quantified impact, architecture decisions, AWS experience, certification, education, projects, availability and contact details. Questions stay in your browser.
4 employers5 flagship systems20+ technologies2 degreesAWS credential
Frequently asked
Quick answers for recruiters and engineers.
What kind of roles is Ripan targeting?
Senior Backend Engineer roles in India, remote worldwide, hybrid or relocation opportunities. Ripan also holds a valid H1B visa for eligible US opportunities.
What is Ripan’s core technical specialization?
Java, Spring Boot, AWS, Kafka, microservices, event-driven architecture, PostgreSQL, Redis, Docker, Kubernetes and production observability.
What scale has Ripan supported?
Products serving more than five million users, live-event backend platforms and more than thirty-five services developed or modernized across his career.
Where can I review deeper technical work?
Use the project case studies, architecture page and engineering notes linked across this site, or ask the local portfolio assistant for a focused summary.
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