Built for Precision, Security & Longevity
From internal calculation engines and ERP glue code to secure payment reconciliation and legacy modernization.
High-throughput backend engines written in Python, Node.js, or Go designed to execute complex business logic, background batch processing, and high-concurrency tasks.
- Clean architecture with modular separation of concerns
- Asynchronous message queuing (RabbitMQ / Kafka)
- Sub-millisecond data caching layers (Redis)
Unify fragmented software silos. We connect payment gateways, ERPs (SAP, Tally, Zoho), CRMs, logistics APIs, and communication webhooks into a harmonious pipeline.
- Automated data sync between incompatible tools
- Webhook retry queues with exponential backoff
- Rate limit handling and API gateway orchestration
Upgrade slow, unmaintainable legacy codebases into clean modern architectures without risking operational downtime or data loss during the transition.
- Incremental strangler-fig pattern migration
- Database schema refactoring & normalization
- Comprehensive test harness to guarantee parity
Eliminate repetitive manual tasks. We engineer scheduled cron routines, automated PDF statement generation, bulk invoice dispatching, and error reconciliation jobs.
- High-volume PDF generation & automated email dispatch
- Daily bank statement and ledger reconciliation
- Granular dead-letter queue error alerts on Telegram/Slack
Software requires active vigilance after launch. Tech Sreni provides proactive maintenance agreements covering server uptime, security patches, library updates, and incident response.
- 24/7 automated uptime & endpoint latency monitoring
- Security patch applications and vulnerability auditing
- Dedicated hours for ongoing feature tweaks & tweaks
Automated pipelines that test, build, and deploy code securely with zero manual friction, backed by infrastructure-as-code and container orchestration.
- Docker containerization for identical dev & prod parity
- GitHub Actions CI/CD automated test suites
- Terraform / Pulumi Infrastructure as Code
Our Rigorous Software Methodology
Enterprise systems require structured phases to guarantee functional alignment and performance under stress.
Technical Discovery & Scoping
We review your existing software, data schemas, compliance rules, and throughput targets to write a comprehensive Functional Spec.
System & Architecture Design
Database normalization, API contract definitions, data-flow diagrams, and failure scenario mapping.
Agile Development Sprints
Test-driven development (TDD) with weekly milestone demonstrations and continuous staging deployments.
Security & Concurrency Stress Testing
Simulating peak traffic conditions, penetration testing, SQL injection testing, and automated load benchmarks.
Production Cutover & SLA Support
Coordinated migration, automated backup confirmation, developer documentation handover, and ongoing support tier activation.
The Custom Software Asset Package
Every custom software build delivered by Tech Sreni is completely documented and ready for in-house developer ownership.
- Full Intellectual Property & complete source code transfer
- Docker Compose & container infrastructure configuration
- Comprehensive OpenAPI / Postman API collections
- Automated Unit & Integration test suites
- Architecture documentation & deployment runbooks
- Initial 60-day post-launch warranty & SLA coverage
Project Scope & Retainer Options
We offer both fixed-price milestone delivery and dedicated agile development retainers:
Frequently Asked Questions
Common questions regarding custom software development and ongoing maintenance.
Why build custom software instead of buying SaaS?
Off-the-shelf SaaS charges recurring per-seat fees, locks your proprietary data into third-party servers, and forces you to adapt your business processes to their limitations. Custom software gives you complete process control, zero subscription inflation, and distinct intellectual property value.
What is included in site and software maintenance?
Our maintenance plans include weekly package updates, security vulnerability scanning, automated cloud backup verification, SSL renewal checks, uptime monitoring with immediate incident response, and dedicated hours each month for feature enhancements.
Can you integrate with our legacy on-premise databases?
Yes. We regularly build secure middleware bridges (e.g. VPN tunneling, secure REST wrappers, or database replication listeners) that safely extract or sync records with on-premise ERPs, SQL servers, or legacy mainframes.
How do you handle documentation and handover?
Every function and endpoint is documented with clear markdown runbooks, architecture diagrams, and interactive OpenAPI specifications. We conduct live technical handover sessions with your internal IT team.
Build Software That Powers Your Competitive Edge
Connect directly with our senior software architects to review your technical challenges, legacy modernization, or proprietary logic. We formulate clear, maintainable development roadmaps with fixed milestones.