
Custom Software Development
Web platforms, APIs and internal tools engineered with modern stacks — TypeScript, React, Node, Python, Go.

REPSAR LTD builds resilient software, cloud platforms and secure infrastructure for organisations that can't afford downtime, drift, or guesswork.
01 · Who we are
Founded as a focused engineering studio, REPSAR LTD works alongside product, operations and security teams to design, build and operate systems that hold up under real-world load.
Our practice combines senior software engineers, cloud architects and security specialists — a small, deliberate team that ships production-grade work without the overhead of large consultancies.
Headquartered in the UK
Operating globally across EMEA, Americas and APAC.
Product-minded
We measure success in outcomes shipped, not hours billed.
02 · Services
Each engagement pairs a lead architect with a small delivery team — no handoffs, no diluted accountability.

Web platforms, APIs and internal tools engineered with modern stacks — TypeScript, React, Node, Python, Go.
AWS, Azure and GCP architecture, migration and cost optimisation.
Threat modelling, secure SDLC, penetration testing and 24/7 monitoring.
Roadmaps, architecture reviews and technology due diligence.
Pipelines, warehouses and decision-ready dashboards.
SRE, observability and platform reliability engineering.
03 · Industries served
Regulated platforms with strict SLAs.
HIPAA-aware clinical and patient systems.
High-traffic storefronts and back-office.
Real-time tracking and fleet optimisation.
IIoT, MES and predictive maintenance.
SCADA integrations and edge platforms.
Multi-tenant B2B products at scale.
Secure citizen-facing services.
04 · Technology stack
Our teams operate fluently across mainstream ecosystems and modern edge runtimes. Every choice is defensible against maintainability, cost and hiring.
Languages
TypeScript · Python · Go · Rust · Java · C#
Frontend
React · Next.js · TanStack · Vue · Svelte
Backend
Node · FastAPI · .NET · Spring · gRPC
Cloud
AWS · Azure · GCP · Cloudflare · Vercel
Data
Postgres · Snowflake · BigQuery · Kafka · dbt
DevOps
Terraform · Kubernetes · GitHub Actions · Datadog

05 · How we work
Business goals, constraints, existing systems.
Reference architecture, risk register, roadmap.
Iterative delivery with weekly demos.
Reviews, testing and compliance gates.
SRE handover, monitoring, continuous improvement.

06 · Why teams choose us
Every engineer on your project has shipped comparable systems before.
Demo, decisions log, updated backlog — every Friday.
Architecture, runbooks, and onboarding materials belong to you.
We recommend the right tool, not the one we resell.
07 · Selected work

Re-platformed a monolithic core banking workload into a multi-region AWS architecture, cutting infrastructure spend by 38% and reducing deployment lead time from weeks to hours.

Consolidated 14 legacy data sources into a governed Snowflake warehouse with dbt models powering real-time inventory and margin dashboards.

Implemented a full secure SDLC — threat modelling, SAST/DAST, and SOC-ready audit logs — for a fast-growing B2B SaaS.
08 · Team & values
We treat code, architecture and documentation as first-class deliverables.
We say what we see, early — even when it's inconvenient.
The engineers who design your system also stay to operate it.


09 · Security & reliability
Security and reliability are not phases at the end of the plan — they are wired into every architecture review, pull request and runbook we write.
10 · FAQ
11 · Contact