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Service · Engineering

Software Development built around your workflows.

Bespoke business systems — APIs, internal tools, microservices, dashboards, integrations — engineered around your team, not a vendor's template.

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Typical timeline: 8 – 20 weeks. Engagement: fixed scope, retainer, or staff augmentation.

api.smartdesizns.com · services
Endpoints · domain-svc
OpenAPI 3.1
GET /v1/orders/{id} p95 28ms
POST /v1/orders p95 64ms
PATCH /v1/orders/{id}/cancel p95 41ms
Queue depth
128 jobs
Healthy · DLQ 0
Error rate
0.04%
Under SLO 0.1%
All 6 services healthy · 0 paging incidents
OpenTelemetry traces · 99.97% SLO this month
Engineering DNA
Polyglot · SLO-driven
Domain-driven design DDD · CQRS

Bounded contexts and event flows. No god-services. Replaceable parts.

Test pyramid 80%+ critical

Unit + contract + end-to-end. Coverage targets agreed in discovery.

Shift-left security SAST · DAST · SCA

Threat-model per epic. Pen-test before every major release.

SLO
99.9%
Lead time
< 1d
IP
100%
What you get

A full engineering team, accountable end-to-end.

Architecture, code, tests, infra, observability and documentation — in one repo, owned by you on day one.

Architecture & API design

Domain-driven modeling, OpenAPI contracts, event flows and a written ADR for every non-trivial decision.

AuthN / AuthZ & RBAC

OAuth2 / OIDC, SAML SSO, fine-grained roles, audit logs, MFA and tenant isolation built in.

Background jobs & queues

BullMQ, Sidekiq, Temporal or SQS workers for retries, scheduling and long-running workflows.

Integrations layer

CRM, ERP, payments, telephony, e-sign, accounting — with idempotent webhooks and replayable events.

CI/CD & environments

Per-PR preview environments, blue-green deploys, automated migrations, secrets rotation.

Observability

Structured logs, traces, metrics, dashboards and on-call runbooks. No black boxes in production.

What we architect

How we architect systems that outlast roadmaps.

Every system we ship follows the same disciplined skeleton — clear layers, observable seams, replaceable parts. Clients talk to an edge gateway, the gateway talks to focused services, services talk to purpose-built data stores, and everything reports into one observability plane.

At the edge, that means rate-limiting, request signing and IP allow-lists before a request ever reaches your domain logic. Inside, it means bounded contexts with no god-services — aggregates and event sourcing only where they earn their keep.

And at the boundary, vendor SDKs are wrapped in narrow interfaces — ports and adapters — so you can swap a payment provider or e-sign vendor without touching the domain layer. That is what keeps a system alive when the roadmap changes underneath it.

The disciplined skeleton

  • Identity by default. OIDC, SAML, magic links and passkeys, with SCIM provisioning and field-level RBAC down to row policies.

  • Async by design. Idempotent jobs, retries with backoff and dead-letter quarantine — long-running work never blocks a request.

  • Transactional truth. Postgres with row-level security, partitioning, point-in-time recovery and replica read-pools.

  • Search & analytics split. Writes land in Postgres and project into a search store via change-data-capture — reads stay fast under load.

  • Observable seams. OpenTelemetry traces across every call, metrics dashboards, error tracking and structured logs — no black boxes.

Disciplines

Engineering disciplines we bring.

The non-negotiables that keep systems honest after the launch glow fades.

Test pyramid

Unit + contract + end-to-end tests. Roughly 80% coverage non-negotiable on critical paths.

CI/CD

Preview deploys per PR, gated releases, blue/green or canary cutovers with one-click rollback.

Security

SAST + DAST + SCA + secret-scan in CI. Threat-model per epic. Pen-test before every major release.

Reliability

SLOs, error budgets, runbooks and blameless postmortems. On-call rotations with paging tuned to noise.

How we work

Five phases. Weekly demos. No surprises.

A predictable path from brief to launch — with documented hand-offs at every milestone.

  1. 1

    Discover

    Goals, users, constraints, success metrics — locked in writing.

  2. 2

    Design

    User journeys, wireframes, hi-fi UI, prototype, design system.

  3. 3

    Build

    Sprint cadence, weekly demos, code review, automated tests.

  4. 4

    Launch

    Staging UAT, security review, CI/CD, monitored go-live.

  5. 5

    Scale

    SLA support, observability, feature roadmap, optimisation.

Tech we use

A reliable stack, picked for the long haul.

Backed by mature ecosystems, large hiring markets and predictable operational behaviour.

Node.js NestJS Python FastAPI Go TypeScript PostgreSQL MongoDB Redis RabbitMQ Kafka Docker Kubernetes AWS GCP Terraform GitHub Actions OpenTelemetry
FAQ

Common questions, answered.

Can you join an existing codebase?

Yes. We start with a 1-week audit covering architecture, tests, performance and risk, then propose a focused work plan — with safety rails so nothing in production breaks.

Do you write tests?

Yes. Unit, integration and end-to-end tests are standard. Coverage targets are agreed in discovery, not after launch.

How do you handle data migrations?

Reversible migrations, dry runs on a snapshot of production data, written rollback plan, and a feature flag for the cutover.

What about compliance?

We have shipped systems under HIPAA-style, PCI-DSS and DPDP / GDPR constraints. Compliance requirements feed into architecture from day one.

Can you embed engineers into our team?

Yes — staff-augmentation engagements with a tech lead are common. You manage the backlog, we deliver the code through your processes.

Experience
0
years shipping since 2011
In production
0
products live in production
Offices
0
offices — India & USA

Ready to start?

Tell us about the project. We will reply within one business day with a proposal and timeline.

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