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ELSI500

LC 500 - Software, Mobile, Ads & IT Support

We fix that. LC 500 combines custom software development, mobile engineering, and performance-focused digital advertising.

Deep Services

We don’t do generic “digital solutions.” Each offering is scoped for accountability: clear deliverables, tech choices, and success metrics. Below are the core service lines we run day to day — often combined into integrated engagements for product companies, agencies, and enterprises.

Custom Software Development

We design and build bespoke applications tailored to your workflows, integrations, and scale. From internal tools and dashboards to customer-facing platforms, we use modern stacks and proven architecture patterns. Our process emphasizes requirements clarity, iterative delivery, and maintainability so your team can extend systems long after handover.

  • Node.js / Python / .NET
  • React / Vue / Angular
  • PostgreSQL / MongoDB

Mobile App Development

Native iOS and Android, or cross-platform with React Native and Flutter — we choose based on performance needs, timeline, and budget. We handle app-store compliance, push notifications, analytics, and offline capabilities. Whether B2C or B2B, we ensure your mobile product is secure, fast, and aligned with platform guidelines.

  • Swift / Kotlin
  • React Native / Flutter
  • Firebase / APNs / FCM

Web Development & Portals

High-performance websites, SPAs, and web portals built for SEO, accessibility, and conversion. We implement responsive layouts, CMS integrations where needed, and headless architectures when you require flexibility. From landing pages to complex multi-tenant portals, we deliver scalable, maintainable frontends and backends.

  • Next.js / Nuxt / Remix
  • Headless CMS
  • SSR / SSG

IT Consulting & Digital Strategy

We help you align technology with business goals: stack audits, architecture reviews, digitalization roadmaps, and vendor selection. Our consultants combine hands-on engineering experience with commercial and management consulting. Outcomes include clearer technical direction, reduced tech debt, and better ROI on IT investments.

  • Architecture reviews
  • Tech due diligence
  • Roadmapping

Digital Advertising & Media

We plan, execute, and optimize paid campaigns across search, social, and programmatic. Focus on attribution, creative testing, and incrementality — not vanity metrics. We work with brands and agencies to improve ROAS, lower CAC, and scale what works. Media buying is complemented by landing-page optimization and conversion tracking.

  • Google / Meta / TikTok
  • Programmatic DSPs
  • Analytics & attribution

Technical Support & Managed Services

Ongoing maintenance, monitoring, and support for the systems we build or inherit. We offer SLAs, ticketing, incident response, and proactive health checks. From bug fixes and security patches to feature tweaks and capacity planning, we keep your platforms stable and performant so you can run the business.

  • 24/7 NOC
  • SLAs & escalation
  • Backup & DR

Narrative Case Study: Logistics SaaS Platform

The challenge

A mid-size logistics operator needed to replace legacy, spreadsheet-heavy dispatch and driver management. Manual routing, poor visibility into fleet utilization, and no real-time ETAs led to missed SLAs, customer complaints, and rising operational costs. They needed a unified platform: order intake, route optimization, driver apps, and a shipper-facing portal — all integrated with existing ERPs and telematics.

The technical solution

We ran a discovery phase to map workflows, integration points, and non-negotiables. We then designed a modular architecture: a React-based operations dashboard, a React Native driver app (offline-first), and a .NET Core API with event-driven updates. Route optimization used a combination of third-party APIs and custom heuristics. We implemented role-based access, audit logs, and encryption at rest and in transit. Deployment was containerized (Docker/K8s) on their preferred cloud, with CI/CD, monitoring, and automated backups.

Measurable ROI

Within six months of launch: route efficiency improved by roughly 18%, reducing fuel and driver hours; SLA compliance rose from ~82% to 96%; and administrative time for dispatch dropped by an estimated 40%. The client expanded usage to a second region and contracted us for ongoing support and feature iterations. The project demonstrated our ability to own full-stack delivery, complex integrations, and post-launch evolution.

Step-by-Step Methodology

Our engagement model follows six stages from discovery to post-launch support. Each stage has defined activities, deliverables, and checkpoints so you always know what we’re doing and what you’re getting.

Discovery & Requirements

What we do: Stakeholder interviews, process mapping, technical and business constraints, success criteria, and risk assessment. We produce a discovery report, user stories, and a prioritized backlog.

What you get: A shared understanding of scope, timelines, and dependencies; a baseline for change control; and a foundation for architecture and design.

Architecture & Design

What we do: System design, tech stack selection, API contracts, data models, security and scalability considerations. We create architecture diagrams, UI/UX wireframes, and design systems where relevant.

What you get: A technical blueprint, clear interfaces for integration, and design assets ready for development — plus your sign-off before we write production code.

Sprint Development

What we do: Agile sprints (typically two weeks). We build features incrementally, run demos, integrate feedback, and maintain CI/CD, tests, and documentation.

What you get: Regular demos, transparent progress, and a product that grows in shippable increments rather than a big-bang release.

QA, Security & Performance

What we do: Functional, regression, and security testing; performance and load tests; penetration testing where required. We fix issues and document known limitations.

What you get: A release-ready build, test reports, and confidence that the system meets quality and security standards before go-live.

Launch & Deployment

What we do: Staged rollout (e.g. canary, blue-green), configuration management, monitoring setup, runbooks, and team training. We support you through launch and hypercare.

What you get: A smooth go-live, operational playbooks, and a team that knows how to run and troubleshoot the system.

Post-Launch Support

What we do: Bug fixes, security patches, minor enhancements, and capacity scaling. We offer SLA-backed support tiers and optional retainer for ongoing feature work.

What you get: Long-term stability, reduced downtime, and a partner who continues to evolve the product as your business grows.

Capabilities Matrix

We offer tiered engagement models to match different budgets, timelines, and risk tolerance. The table below summarizes what’s included at each level so you can choose the right fit.

Service tier comparison: Starter, Growth, and Enterprise
Capability Starter Growth Enterprise
Discovery & scopingLightFullFull + workshops
Architecture reviewYesYes + security audit
Design (UI/UX)BasicFullFull + design system
DevelopmentSmall teamDedicated squadDedicated + overflow
QA & security testingFunctionalFunctional + securityFull + pen-test
Deployment & DevOpsStandardCI/CD + monitoringFull SRE, DR
Post-launch support30 days90 days12 months + SLA
IP assignmentYesYesYes

Tech Stack Cloud

We work with a curated set of technologies to balance performance, maintainability, and ecosystem support. Below is a categorized overview; final choices depend on your constraints and preferences.

Frontend

  • React
  • Vue
  • Angular
  • Next.js
  • Nuxt
  • Remix
  • TypeScript

Backend

  • Node.js
  • Python
  • .NET Core
  • PostgreSQL
  • MongoDB
  • Redis
  • GraphQL

Mobile

  • Swift
  • Kotlin
  • React Native
  • Flutter
  • Firebase

Cloud & DevOps

  • AWS
  • GCP
  • Azure
  • Docker
  • Kubernetes
  • Terraform

KPI & Impact

We track and report on metrics that matter for delivery and operations. Below are representative commitments and how we achieve them.

99.9%
Uptime
How we achieve high availability

We use redundant deployments, health checks, automated failover, and 24/7 monitoring. Incidents are triaged via defined SLAs and escalation paths. Post-mortems and runbooks reduce recurrence.

< 48h
Critical bug response
Our commitment

Critical issues are acknowledged within 4 hours and assigned a fix or workaround within 48 hours for supported tiers. We prioritize security and data-integrity bugs above feature work.

100%
IP assignment
What you own

Upon final payment, you receive full ownership of deliverables: source code, designs, and documentation. We use clear contracts and no lock-in; you can take the project elsewhere if needed.

6-stage
Methodology
Structured delivery

Discovery → Design → Development → QA → Launch → Support. Each stage has defined outputs and checkpoints so scope and timeline stay transparent throughout the engagement.

FAQ

Common questions about security, pricing, timelines, and IP. Expand any item for more detail.

How do you handle data security and GDPR?

We follow GDPR-aware practices: data minimization, purpose limitation, and clear processing agreements. We use encryption at rest and in transit, access controls, and audit logs. For EU/EEA clients, we can align with DPA requirements and support data residency where needed.

What pricing models do you offer?

We use fixed-price projects for well-scoped work, and time-and-materials or dedicated teams for exploratory or ongoing engagements. We provide estimates after discovery and use change-control for scope changes. Pricing is transparent and discussed before commitment.

How long does a typical project take?

It depends on scope. An MVP can take 8–14 weeks; larger platforms often 4–8 months. Discovery usually 1–2 weeks. We give timeline estimates in the proposal and track progress via demos and milestones.

Do we own the intellectual property?

Yes. Upon full payment, you receive all rights to custom code, designs, and documentation we produce for your project. We use standard IP assignment clauses in our contracts. Third-party components remain under their licenses; we’ll identify them and ensure compatibility.

Do you work with clients outside Ukraine?

Yes. We work with clients across Europe, North America, and elsewhere. Communication is in English. We use async collaboration, videoconferencing, and project tools. Time-zone differences are managed through overlapping hours and clear response expectations.

What about ISO or other certifications?

We apply ISO-like practices for quality and security where relevant. Formal certifications can be discussed for enterprise engagements. We’re happy to complete vendor questionnaires and provide documentation on our processes.

Can you take over an existing codebase?

Yes. We do codebase audits, refactoring, and feature work on legacy systems. We’ll assess tech stack, documentation, and deploy pipeline, then propose a plan. Handover support from your current team accelerates the transition.

What support options exist after launch?

We offer SLA-backed support tiers: response times, coverage windows (e.g. business hours vs 24/7), and severity levels. Options include bug fixes, security patches, minor enhancements, and retainer-based feature work. We’ll propose a support plan during project closeout.

Compliance & Security

We take compliance and security seriously. Below are key commitments we apply across projects and support engagements.

  • GDPR alignment: We process personal data only as instructed, support data subject rights, use DPAs where required, and document processing activities. We avoid unnecessary data retention and use secure storage and transmission.
  • Data encryption: Sensitive data is encrypted at rest (e.g. AES-256) and in transit (TLS 1.2+). Keys are managed securely; we never log passwords or sensitive payloads.
  • Access control & audit: We use role-based access, least privilege, and audit logs for sensitive operations. Access reviews and offboarding procedures are part of our operational practice.
  • SLA guarantees: For supported tiers we commit to uptime, response times, and resolution targets. Penalties and escalation paths are defined in the support agreement.
  • Incident response: We have defined procedures for security incidents: containment, notification, and remediation. We’ll inform affected clients where legally or contractually required.
  • Vendor & subprocessors: We use a limited set of subprocessors (hosting, tools). We assess them for security and compliance and disclose them upon request. We can accommodate constraints where possible.

Contact

Use the form for project inquiries, support, or partnership discussions. We respond within one business day.

ELSI 500
2 Akademika Vil'yamsa St
Kyiv, 03189
Ukraine

[email protected]

+380 99 815 64 19

Support hours: Mon–Fri 09:00–18:00 EET. For SLA-backed clients, 24/7 escalation applies.