Application development for banks & financial institutions.
We build secure, scalable platforms in Java and Python, and design AWS architectures that ship to production reliably—built for regulated environments and high availability.
Typical engagements: core platform build, modernization from legacy stacks, AWS migration, secure deployment pipelines, and performance scaling.
We design with auditability, least privilege, encryption, and clear change controls—so delivery stays fast without compromising compliance.
- Threat modeling & secure SDLC practices
- Policy-as-code guardrails (IAM, networking, secrets)
- Observability & incident-ready runbooks
Core stack
Java
Spring Boot, microservices, APIs, integration layers
Python
Data pipelines, automation, services, risk tooling
AWS
EKS/ECS, serverless, networking, security
DevOps
Terraform/CDK, CI/CD, blue/green, canary
Replace/extend this list to match your exact service mix.
Solutions for finance
What we build for banks & financial institutions
Modern platforms that are reliable under load, easy to audit, and safe to evolve. We focus on the engineering essentials that matter for financial systems: correctness, security, performance, and operability.
Payments & card platforms
Authorization flows, settlement tooling, transaction services, and resiliency patterns for high-throughput workloads.
Core banking integrations
API gateways, integration layers, batch processing modernization, and event-driven architecture.
Risk, AML & compliance tooling
Workflow automation, rules services, audit trails, and data pipelines that keep governance simple.
Capabilities
Java + Python engineering with AWS architecture & deployments
We don’t just write code—we deliver systems that run. Expect strong engineering hygiene, pragmatic architecture, and deployment pipelines designed for safe change.
Backend application development
Clean APIs, domain-driven design, eventing, and integrations. Built for performance and maintainability.
- Spring Boot, REST/gRPC, messaging
- Python services, automation, data tooling
- Testing strategy (unit, contract, integration)
AWS architecture
Secure-by-design cloud foundations that support regulated workloads and predictable cost scaling.
- Landing zones, IAM, VPC, KMS, secrets
- Compute: EKS/ECS, Lambda, serverless
- Resilience: multi-AZ patterns, DR planning
Deployments & DevOps
Repeatable, auditable releases with guardrails—so teams can ship frequently and safely.
- CI/CD (GitHub Actions/GitLab/Jenkins)
- IaC (Terraform / AWS CDK), drift control
- Observability (CloudWatch, OpenTelemetry)
Security & compliance
Access controls, encryption, audit logs, and secure reviews embedded into delivery.
Performance under load
Profiling, caching strategies, backpressure, idempotency, and tuning for peak traffic.
Modernization
Incremental refactors, strangler patterns, and migration plans that reduce operational risk.
Operability
Runbooks, SLOs/SLIs, dashboards, alerting, and on-call readiness.
Delivery approach
A predictable path from requirements to production
Banking software fails when ambiguity meets operations. Our delivery emphasizes crisp scope, strong engineering practices, and production readiness from day one.
How we work
Discovery & architecture
Define flows, risks, SLAs, and constraints. Produce an architecture plan and delivery roadmap.
Build & validate
Iterative delivery with test automation, code reviews, and environment parity.
Deploy & operate
CI/CD pipelines, IaC, observability, and handover with runbooks and KPIs.
Sample outcomes
Modern API layer
A secure integration tier for legacy systems with strong auditability and clear change control.
Cloud migration blueprint
A staged plan with landing zone, networking, IAM, data migration steps, and rollback strategy.
Release pipeline
Automated builds, security scans, approvals, and safe deployment strategies (blue/green / canary).
Want a tighter, simpler page like your current site? You can remove sections and keep the same design system.
Contact
Let’s discuss your banking or fintech build
Share a few details and we’ll respond with a proposed next step (discovery call, architecture review, or a delivery plan).
Send a message
Or contact us directly
contact@jbrains.co
What happens next
- We confirm requirements, constraints, and success criteria.
- We propose an approach: team, milestones, architecture, and delivery plan.
- If aligned, we start with a short discovery sprint and ship incrementally.
Areas we’re strongest
Core services, integration layers, cloud architecture, CI/CD, and operational readiness.
Engagement models
Project delivery, team augmentation, or architecture & deployment advisory.
Replace this with your real address: contact@jbrains.co