Services / LoneSock Consultancy

We build the system.
You own the code.

Custom software, AI, ERP, communications, fintech, and infrastructure. Six horizontal disciplines plus five vertical practices, billed at $20 per hour with source code delivery on every engagement.

Start a ConversationSee What We Build

At a glance

Years shipping
26
Products in catalog
22
Hourly rate
$20
Source delivery
100%

What is the LoneSock services practice?

LoneSock Consultancy is the client-services arm of KaritKarma Limited. Where KaritKarma builds its own products (22 in production, from Wenme identity to BitsPath communications to BizRP ERP), LoneSock takes that same engineering practice to client engagements.

Clients hire LoneSock when they need a system built or modernized, not when they need software to subscribe to. We can fold a KaritKarma product into the architecture when it is the right fit, or we can build the equivalent from scratch as a standalone codebase that you fully own. Either way, you get the same architects, the same engineering discipline, and the same source code delivery.

Same team, start to finish

The architects who design your system also build it. No handoff to a junior pool after the kickoff deck.

Outcome, not hours

We are accountable for what we ship. If a feature does not work to spec, we fix it. No change orders for bugs.

Patterns, not greenfield invention

26 years of patterns refined across 22 KaritKarma products. We have seen most failure modes before.

Horizontal disciplines

Six disciplines, each backed by shipped products.

Every discipline is backed by at least one KaritKarma product in production. That product is offered as a platform option, never a mandate. We integrate the alternative when the alternative fits better.

Custom Software Development

Go / .NET 10 / Rust / Next.js

Full-stack enterprise systems. Microservices, APIs, web apps, mobile apps. Go, .NET 10, Rust, Next.js, React Native.

Read the brief

AI & Machine Learning

Groq, CLIP, autonomous agents

Voice AI (sub-500ms with Groq), NLP, fraud detection (ML scoring), recommendation engines, autonomous agents, computer vision (CLIP).

Read the brief

E-Commerce & ERP

BizRP or custom

BizRP-powered or custom-built. Full e-commerce with POS, inventory, accounting. ERPNext-level business logic in Go microservices.

Read the brief

Communications & CPaaS

BitsPath or Twilio

BitsPath-powered. Email, SMS, WhatsApp, push, voice PBX. Carrier-grade Rust voice platform with SIGTRAN/SS7.

Read the brief

FinTech & Payment Systems

SSLCommerz, bKash, Aegis, Hold.bd

Payment gateways, escrow (Hold.bd + tier-1 commercial bank partner), fraud detection (Aegis), sovereign payment networks (IntraPay).

Read the brief

Infrastructure & DevOps

Tier-3 DC, AS 64005

Own Tier-3 data center (APNIC member, AS 64005, BGP peering). Docker/k8s, CI/CD, monitoring, cloud migration.

Read the brief

Vertical practices

Five verticals where domain knowledge matters.

Some sectors carry enough regulatory, operational, or workflow gravity that a horizontal services pitch is not enough. These five verticals get their own dedicated practice with industry-specific patterns.

ISP Operations

Billing, RADIUS AAA, MikroTik integration, subscriber portals. ISPChamp is one option, custom builds are the other.

Visit practice

Newspaper Publishing

Editorial workflow, print plus digital CMS, archive search. NewsForge, Pressable, or a bespoke editorial stack.

Visit practice

Education Systems

Student lifecycle, LMS, virtual classroom, exams. BTEB and UGC compliant. Custom-built per institution.

Visit practice

SME Back-Office

Inventory, invoicing, HR, CRM, accounting integration. BizRP-powered or fully custom on Go or .NET.

Visit practice

Non-Profit Operations

Donor relationships, program impact tracking, volunteer coordination, omnichannel fundraising. Special pricing.

Visit practice

Platform options

Your stack, your choice.

For every platform layer we operate in, KaritKarma has a product and the market has competitors. We present both, then build with what fits.

Authentication

Wenme is our OAuth 2.1 and OIDC identity platform. We also integrate Auth0, Clerk, Supabase Auth, or your existing SSO provider.

WenmeAuth0ClerkSupabase Auth

Authorization

Darwan is our 42-endpoint RBAC plus ABAC system with four SDKs. We also implement Casbin, Oso, or custom claim-based RBAC.

DarwanCasbinOsoCustom RBAC

Communications

BitsPath is our 15-service CPaaS plus carrier-grade Rust PBX. We also integrate Twilio, SendGrid, MessageBird, or local aggregators.

BitsPathTwilioSendGridMessageBird

Storage and Payments

Cloudflare R2 for client file storage. SSLCommerz, bKash PGW, Nagad, or Stripe for client payment integration based on the client's merchant relationships.

Cloudflare R2SSLCommerzbKash PGWStripe

How we compare

LoneSock vs typical agency vs Big-N consultancy.

An honest comparison across the dimensions that usually decide the engagement.

DimensionLoneSockTypical agencyBig-N consultancy
Hourly rate
$20
$80-150$250-500
Source code ownership
Standard, every engagement
Sometimes, with caveatsRare, often locked behind licensing
Architect involvement
Architects build, every sprint
Pre-sales only, then handoffPartner level, billed separately
Platform options
22 KaritKarma products, or competitor stack
Whatever partner program paysProprietary or one cloud vendor
Infrastructure backbone
Tier-3 DC, AS 64005, APNIC member
Hyperscaler resellerHyperscaler reseller

Method

Five phases. Same team across all of them.

The methodology has been refined across 22 product builds and 200+ client engagements. Predictable, transparent, and unchanged by reorganizations on our side.

  1. 01

    Discovery

    Audit current systems, interview stakeholders, document requirements and constraints.

    2-4 weeks

  2. 02

    Architecture

    Design the solution. Technology choices, integration surfaces, migration plan, security model.

    1-2 weeks

  3. 03

    Build

    Development in two-week sprints. Working software every iteration, source code delivered continuously.

    8-16 weeks

  4. 04

    Deploy

    Infrastructure setup, monitoring, go-live, runbook handover. Your operators learn alongside us.

    1-2 weeks

  5. 05

    Support

    Optional ongoing maintenance via Retainer or AMC. Same team that built it continues to run it.

    Ongoing

Commercial models

Four ways to engage.

Pick the structure that matches your scope clarity and budget shape.

Fixed-Price

Milestone-based payments against defined scope. Source code delivery on each milestone.

Best for: Clear projects with stable requirements

Time and Materials

$20 per hour, billed by actual effort. Scale capacity up or down by sprint.

Best for: Evolving projects or ongoing development

Retainer / AMC

Twenty percent of build cost per year. Dedicated capacity reserved for maintenance and enhancements.

Best for: Continuous development and incident response

CTO-as-a-Service

Fractional technical leadership. Architecture reviews, hiring panels, strategy, mentoring.

Best for: Startups and teams without senior technical leads

FAQ

Frequently asked.

What is LoneSock Consultancy?
LoneSock Consultancy is the services arm of KaritKarma Limited. We deliver custom software, AI systems, ERP, payment systems, communications platforms, and infrastructure for clients across Bangladesh, the UK, UAE, and the US. Engagements bill at $20 per hour with full source code delivery on every project.
What services does LoneSock offer?
Six horizontal disciplines: Custom Software Development (Go, .NET 10, Rust, Next.js), AI and Machine Learning (Groq, CLIP, autonomous agents), E-Commerce and ERP, Communications and CPaaS, FinTech and Payment Systems, and Infrastructure and DevOps. Five vertical practices: ISP operations, Newspaper publishing, Education, SME back-office, and Non-Profit operations.
What is your hourly rate and how is it competitive?
$20 per hour for Time and Materials engagements. The same rate applies to junior and senior engineers because every engagement includes architect-level oversight from the team that has shipped 22 KaritKarma products over 26 years. Dhaka cost base, not Bay Area cost base.
Do clients own the source code?
Yes. Source code delivery is standard on every engagement. You receive the full repository, infrastructure-as-code definitions, deployment scripts, tests, and documentation. No vendor lock-in, no per-seat licensing.
Do you push your own products onto every project?
No. KaritKarma products are presented as platform options alongside competitors. Authentication can be Wenme or Auth0 or Clerk. Comms can be BitsPath or Twilio or SendGrid. Payments can be SSLCommerz or bKash PGW or Stripe direct. The client chooses what fits their compliance, geography, and budget.
What engagement models do you offer?
Fixed-Price with milestone payments for defined scope; Time and Materials at $20 per hour for evolving scope; Retainer or AMC at twenty percent of build cost per year for ongoing maintenance; and CTO-as-a-Service for fractional technical leadership.

Let us discuss your project.

No RFP required. Start with a conversation. Tell us what you are trying to build and we will tell you how we would approach it.

Schedule a Call