Legacy System Modernization Company in San Francisco

QServices is a remote-first software consultancy serving San Francisco companies in Tech, FinTech, SaaS, and Biotech on legacy system modernization. We are not headquartered in San Francisco, but we work with California clients on remote engagements with PT hours of daily overlap.

What San Francisco buyers typically need from legacy system modernization

San Francisco's Tech, FinTech, SaaS, and Biotech companies tend to reach a similar inflection point: the original codebase (often a monolith built in a Series A sprint) is blocking features the product team needs. Here are the patterns we see most often:

• SaaS companies needing to break a monolith into services so separate teams can deploy independently
• FinTech firms running payment or lending logic in systems that predate CCPA/CPRA requirements, with personal data embedded in places that make compliance reporting difficult
• Biotech companies on aging .NET or Java backends that need Azure migration for compute-heavy workloads
• Tech companies losing institutional knowledge as senior engineers leave, with undocumented business rules buried in a codebase only two people understand

CCPA and CPRA add a concrete modernization driver for California companies. Data subject rights (access, deletion, and portability) are hard to implement cleanly in legacy databases that were never designed around data ownership. We scope CCPA readiness as part of every modernization engagement for California clients. See the California AG's CCPA guidance for the obligations your data architecture must meet.

How we work with San Francisco clients

Our team is based in India and works in IST (UTC+5:30). San Francisco runs on PT (UTC-7 in PDT, UTC-8 in PST). That is a 12.5 to 13.5 hour gap. We don't paper over it. Here is how we manage it in practice:

• Morning overlap block: We reserve a 7:30–9:00 AM IST slot for late-afternoon PT calls (5:30–7:00 PM PT). For teams that prefer midday PT, we can flex to an evening IST slot by arrangement.
• Async-first delivery: All sprint work, code reviews, and demos are documented in writing. Nothing important lives only in a verbal conversation.
• Weekly standup: One live video call per week with your product or engineering lead, via Teams or Slack. Sprint reviews are shared as recorded walkthroughs with written notes.
• On-site visits: For projects over $100K, we include one on-site visit in San Francisco at the project midpoint and at go-live.

We use GitHub for code and whichever project management tool your team already uses: Jira, Linear, Confluence, or Notion. We don't ask clients to adopt our tools.

Relevant work in similar markets

We don't have a published San Francisco client at this time. The two closest cases from our portfolio involve FinTech-adjacent and enterprise software modernization, both directly relevant to the kind of projects San Francisco companies commission:

StockScrapping Analytics Platform: For an investment management and stock analytics company, we replaced scattered spreadsheet-based workflows with a role-authenticated Azure dashboard. The work covered .NET Core, Entity Framework, and SQL Server, moving from a fragmented data setup to a structured platform with automated scraping and real-time financial metrics. This type of data infrastructure modernization maps directly to San Francisco's FinTech and wealth management sector.

Global EHS Platform Modernization: We rewrote a legacy VB.NET monolith into a .NET 8 and React application on Azure for a global EHS software company. The migration covered a large integration surface (Management of Change, Incidents and Events, LMS training, and automated scheduling) without a big-bang cutover. We used a strangler-fig approach that kept the existing system live throughout the transition.

More detail on our modernization work is available on our services page.

What legacy system modernization costs for a typical San Francisco project

Engagements are scoped and billed in USD. Our rates run from $35/hour (standard) to $65/hour (senior). For California clients with CCPA/CPRA compliance scope, add 15–25% for regulatory overhead.

Typical project brackets:

• Scoped modernization ($60K–$120K): One legacy service rewritten using a strangler-fig pattern, data migration, API gateway integration, and staging deployment on Azure. Roughly 600–2,000 hours.
• Platform modernization ($120K–$500K): Full product migration from monolith to services, covering multi-system integration, CCPA readiness built into the data architecture, and a maintenance retainer after go-live. Roughly 2,000–6,000 hours.
• Integration overhead: Add $3,000–$12,000 per non-trivial system integration, such as connecting a new .NET 8 service to a legacy ERP or payment processor.

For a full breakdown, see our legacy modernization pricing page.

How to start working with us

Three steps from first contact to project start:

1. Discovery call: 45 minutes with our CTO (Rohit Dabra) or an engineering lead. We ask about your current stack, what is blocking you, and what a good outcome looks like in 12 months.
2. Scoping document: Within one week of the discovery call, we send a written scope covering phases, deliverables, timeline, and a fixed-price or time-and-materials estimate.
3. Project start: Once the scope is signed, we kick off within two weeks. You get a dedicated project manager and a direct Slack channel to the engineering team from day one.

Can you work with San Francisco companies remotely?

Yes. We don't have a San Francisco office, and we are direct about that. We work with California clients as a remote vendor under a written services agreement. Our PT-overlap window covers most coordination needs.

On data residency: CCPA and CPRA regulate how your company handles personal data, not where your vendor's engineers are located. If your legal team requires it, we scope data handling architectures that keep personal data within US-based Azure regions. We use standard NDAs and data processing agreements for all California engagements.