Ost

OST operates with small senior teams and technical leads who remain involved through delivery. The team that sells the work is the team that ships it. Its named leadership includes President Shaili Gupta, CEO and founder Manish Mittal, Jonathan Parella in sales and strategy, Lorena Villar in project management and UX, Daniel Gonell in user experience and design, and Sanjeev Kumar in delivery management.

Operating principles

• Confidentiality: OST signs mutual NDAs at the proposal stage. It does not use subcontractors without the client's written approval.
• One team across the lifecycle: Discovery, development, accessibility audits, server work, and ongoing support are handled by one team.
• Senior staffing: The senior person on the kickoff remains the senior person through release. Technical leads typically have at least eight years on the relevant stack.
• Response and support: OST states that production issues receive a response within one business day during business hours. Escalation paths and on-call rotations are documented for each engagement, with weekend coverage for retainer clients.
• Accessibility by default: Engagements include conformance to WCAG 2.2 AA and Section 508 as a baseline, with QA performed against client-approved acceptance criteria.
• Long-term relationships: OST describes multi-year relationships as common and states that it remains involved after launch.

• Custom mobile app development: iOS, Android, and cross-platform mobile and web applications with UI/UX, robust functionality, and consistent performance.
• Cross-platform development: React Native and Flutter applications for iOS, Android, and web from a shared codebase.
• Custom web development: Enterprise portals, e-commerce systems, SaaS applications, and other scalable, secure web platforms.
• API development: RESTful and GraphQL APIs, plus third-party API integration.
• Systems integration: Connections between CRMs, ERPs, payment processors, custom platforms, and other enterprise systems.
• Startup and MVP development: MVPs and early-stage software focused on product validation and scope discipline.
• Product innovation: Concept validation, market-opportunity analysis, user-centric design, rapid prototyping, and full-cycle development.
• AI consulting and implementation: Predictive analytics, intelligent chatbots, recommendation engines, and knowledge-base-grounded assistants.
• AI prototype to production: Hardening OpenAI, Anthropic, or open-source model proof-of-concepts with error handling, cost controls, and monitoring.
• Maintenance: Security patches, dependency upgrades, bug fixes, and performance tuning.
• Bridge engineering: Legacy API wrapping, data translation layers, event-driven synchronization, and strangler fig migrations.
• Migration and upgrades: Cloud migration, database upgrades, and transitions from legacy systems, including Drupal 7 to 10, Magento 1 to modern commerce, and Classic ASP to modern stacks.
• DevOps: CI/CD pipelines, infrastructure automation, and development-operations collaboration.
• Software security: Threat detection, vulnerability assessments, encryption, and compliance-focused application security.
• Quality assurance: Automated and manual testing, security assessments, performance analysis, and accessibility testing.
• Digital marketing: SEO, generative engine optimization, voice search, social media, content creation, and email automation.

Services can be delivered individually or combined across a multi-year engagement.

The company lists the following awards and affiliations:

• Philadelphia 100 recognition, including 2020, 2021, and 2022 listings
• Clutch recognition, including Top IT Services Firms, Top 1000 Companies Global, and Top Mobile App Developers
• DesignRush Accredited Agency
• GoodFirms and Expertise recognition
• WP Engine Agency Partner
• Google Cloud Partner
• HubSpot Partner
• OpenCart Partner
• Zapier Partner

Compliance and technical posture

• Accessibility: WCAG 2.2 AA and Section 508 are stated as the default for public-facing builds unless a contract specifies otherwise.
• Regulated delivery: OST states that it delivers against SOC 2 Type II, HIPAA, and FedRAMP-aligned controls for regulated stacks.
• Cloud: Senior architects have deployment experience across Google Cloud, AWS, and Azure.
• Marketing credentials: The team includes HubSpot, Google Ads, and Google Analytics 4 certifications, as well as an active GEO Practitioner certification.
• Client validation: OST reports a 4.8 out of 5 rating across 36 verified Clutch reviews.

OST AI Assistant

A 24/7 customer-support, sales, and onboarding assistant powered by a customer's knowledge base. The product is described as WCAG 2.1 AA accessible, multilingual, and secure for multi-tenant use. It is used by Wild Boar ATV Parts and Council on Aging Martin County.

TapRelief

A free wellness app with an interactive 3D body picker. Users can select where they hurt, follow a stretch, and track tension patterns over time. It is anonymous by default and available on iOS, Android, and the web.

Ways to start

• Schedule a 60-minute call: A no-obligation conversation to determine whether OST is a fit.
• Use free tools: The Modernization Cost Calculator, AI Visibility Audit, and ROI Calculator are offered without an email gate or upsell.
• Call OST: +1 (833) 678-2402, Monday through Friday, 9am–7pm ET. OST states that calls are answered by a human.

Conversations are confidential. OST can sign an NDA, and a sample NDA is available for download.

• Businesses: Mid-market US businesses seeking legacy-system modernization, custom applications, or AI integration. Engagements may be focused short projects or multi-year retainers.
• Agencies: US agencies can use OST for white-label engineering. OST describes its offering as an AI-augmented senior team with offshore economics and US-time-zone presence, and follows the client's AI policy.
• RFP teams: OST is SAM-registered and supports SLED and federal procurement. Its stated compliance posture includes Section 508 and WCAG 2.2 AA conformance, with past performance across K-12, higher education, civic, and nonprofit work.

Industries

OST's core practice areas are:

• Education
• Nonprofit and civic
• Healthcare and wellness
• Real estate technology
• E-commerce and marketplaces
• Manufacturing and B2B

The company also takes selected engagements in beauty and cosmetics, fitness, food and nutrition, fintech and finance, environmental work, insurance, hospitality and travel, media and entertainment, and shipping.

Engagement formats

OST supports new builds, inherited or existing systems, modernization, AI integration, ongoing maintenance, and government RFP delivery. Clients may use OST for project work or retain the firm as an engineering team for building features, running servers, monitoring analytics, and fixing issues.