Backend and API development
Services, APIs, and business logic in Python, Node.js, or the language your codebase already uses. Designed to be tested, documented, and maintained by whoever comes after.
006Fullstack Specialists
Senior fullstack engineers who ship across your whole stack
Add fullstack specialists from Webisoft to your team when you need engineers who can take a feature from database schema to production UI without handoffs. Our people work inside your repos, your process, and your standups. This is for CTOs and product leaders who need senior capacity now, not a six month hiring pipeline.
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What you get
What a fullstack specialist covers
One engineer who owns the feature end to end: backend, frontend, data, and the deployment path in between.
Frontend engineering
Production interfaces in React, Vue, or Astro, wired to real APIs and real state. We build UI that survives contact with actual users, not just the demo.
Database and data modeling
Schema design, migrations, and query work across PostgreSQL, MySQL, and document stores. Data decisions made early and correctly, because they are the hardest to undo.
DevOps and deployment
CI pipelines, containerization, and cloud deployment so the code our engineers write actually reaches production. We do not throw builds over a wall.
Code review and standards
Our specialists review pull requests, raise architecture concerns, and hold the line on quality. You get a senior voice in the room, not just extra hands on the keyboard.
Legacy and greenfield work
Comfortable extending a five year old monolith or starting a service from an empty repo. Most real work is both at once, and we staff for that.
How it works
From first call to first commit
(4)- 1
Scope the need
We talk through your stack, your roadmap, and where the gap is. Sometimes the answer is one specialist, sometimes it is a different shape of help, and we tell you which.
- 2
Match the engineer
We propose specialists whose experience fits your stack and your domain. You meet them before anything is signed, and you say no if it is not a fit.
- 3
Embed and ramp
Your new engineer joins your repos, tools, and rituals in the first week. Senior people ramp by reading code and shipping something small, so that is what happens.
- 4
Deliver and adjust
Work ships in your normal cadence with your normal review process. We check in regularly, and you scale the engagement up, down, or off as your roadmap moves.
Why Webisoft
Why teams staff fullstack roles through us
We are a Montreal software studio that builds products of our own, so the engineers we place are practitioners, not resumes.
Senior by default
We place engineers who have shipped and maintained production systems. You are not paying senior rates for someone learning your stack on your dime.
Full ownership, fewer handoffs
One person who handles backend, frontend, and deployment means fewer meetings, fewer tickets in limbo, and features that actually finish.
Your process, not ours
Our specialists adopt your tooling, branching model, and review standards. The goal is an engineer your team forgets is external.
A studio behind the seat
When your specialist hits a hard problem, they can pull on Webisoft's wider team for architecture, AI, or infrastructure questions. You staff one person and get a bench.
FAQ
Common questions
(4)- When hiring through an agency or staffing partner, a fullstack developer can typically start within one to two weeks of the first call, depending on the match. The usual steps are a scoping conversation to define the role and an interview with the proposed engineer. A direct permanent hire takes far longer, often two to three months once sourcing, interviews, and notice periods are counted.
- The most common combinations are Python, Node.js, or TypeScript on the backend with React, Vue, or Astro on the frontend, running on PostgreSQL and one of the major clouds. A genuine fullstack developer is productive across that whole slice, from database schema to interface. When evaluating candidates for an adjacent stack, it is worth asking directly how close their experience is rather than assuming skills transfer automatically.
- Under a properly written contract, the client owns everything from day one. Work should happen in the client's repositories under the client's accounts, so there is no handover event and no deliverable held hostage at the end. Contracts should include explicit IP assignment and confidentiality clauses, since default copyright rules vary by jurisdiction and do not always favor the client.
- Yes, and it is a common pattern. Engagements often start with a single engineer, and grow as trust builds and the roadmap expands. Additional specialists can be added one at a time, or the arrangement can shift into a full product engineering engagement if the scope changes. Starting small keeps risk low while both sides evaluate the working relationship.
Where we add value
What our fullstack specialists cover, end to end
A fullstack specialist is valuable because one person can carry a feature from database schema to deployed interface without handoffs. These are the layers our engineers own and the specific tools they use at each one.
Frontend engineering
React, Next.js, and TypeScript interfaces built with attention to the parts users feel: load performance, accessibility, and state management that does not collapse as the app grows. We favor server rendering where SEO or first paint matters and measure with Core Web Vitals rather than opinions.Backend and API design
Python and Node services with REST or GraphQL APIs designed contract-first, so frontend and backend work can proceed in parallel against an agreed schema. Business logic gets tests, background jobs get queues and retries, and errors get structured logging you can actually search during an incident.Data layer decisions
PostgreSQL as the default, with Redis, search engines, or document stores added only when a measured need justifies the operational cost. Fullstack ownership matters here: the same engineer who writes the query sees its effect on the page, so N+1 problems get fixed instead of shipped.Cloud and DevOps
Deployment on AWS or GCP with infrastructure as code, containers, CI/CD pipelines, and monitoring set up from the first sprint. The goal is that every merge deploys to staging automatically and production releases are a routine button press, not a weekend event.Product-minded engineering
Our specialists are used to working directly with founders and product owners, which means they push back on requirements that are expensive relative to their value and propose cheaper paths to the same outcome. On small teams, that judgment saves more money than any framework choice.Legacy modernization
Much fullstack work is not greenfield. We take over aging codebases, add tests around critical paths first, then refactor and extend incrementally using strangler patterns, so the business keeps running while the system improves. We document as we go, because we may not be the last team to touch it.
How it runs
How an engagement with our fullstack specialists works
(4)- 1
Technical scoping
We review your codebase or product spec and return a written assessment: architecture recommendation, risks, and a milestone plan with effort ranges. For existing systems this includes a candid read on code health, so you know whether you are buying feature work, rescue work, or both. - 2
Foundation sprint
The first sprint sets up what every later sprint depends on: environments, CI/CD, test scaffolding, and one thin feature deployed end to end through the full stack. Shipping something real in sprint one validates the pipeline and surfaces integration surprises while they are still cheap. - 3
Iterative delivery
Work proceeds in one or two week sprints with a demo of deployed software at each boundary, not slideware. You get direct access to the engineers in your Slack or Teams, a visible board, and the standing right to reorder the backlog between sprints as your priorities shift. - 4
Hardening and handover
Before launch we run a hardening pass: load testing, security review, backup and rollback rehearsal, and monitoring with alerts routed to whoever will be on call. Handover includes architecture documentation and recorded walkthroughs, whether the system goes to your team or stays with us under support.
FAQ
Questions buyers ask about fullstack development
(6)- Scope is the obvious driver, but the multipliers hide elsewhere: the number of third party integrations, real-time features, complex permission models, and whether data must migrate from an existing system. A focused web application with one or two integrations typically takes a small team a few months to reach production. We estimate per milestone rather than for the whole project at once, because the accuracy of any estimate collapses beyond the next milestone or two.
- For most products up to moderate scale, yes, because handoffs are where time dies. One engineer who owns a feature across the stack ships it faster and with fewer contract mismatches than two who negotiate an API between them. Deep specialists earn their place when a single layer becomes genuinely hard: heavy data engineering, intricate design systems, low-level performance. Our default is a fullstack core that pulls in specialists for those spikes, not as permanent overhead.
- We default to widely adopted tools, TypeScript and React on the front, Python or Node behind, PostgreSQL underneath, because hiring for them is easy and their failure modes are well documented. Exotic choices need to justify themselves against the cost of every future hire learning them. Everything is delivered as standard containers and infrastructure as code in your own cloud accounts and repositories, so switching vendors or bringing work in-house is a staffing decision, not a rewrite.
- Process, not heroics. Every change goes through pull request review by a second engineer, CI runs tests and static analysis before anything merges, and critical business logic carries automated tests as a rule rather than a virtue. We also keep staging environments that mirror production, so the phrase works on my machine has nowhere to hide. You can audit any of this at any time, since the repositories and pipelines are yours.
- Yes, this is common and we have a standard playbook for it. We start with a read-only audit: run the system, map the architecture, measure test coverage, and list the risks in plain language. Then we stabilize before we extend, adding tests and fixing the failures most likely to hurt, because building features on a cracked foundation just makes the rescue more expensive later. You get an honest verdict early, including the rare case where a rewrite of a component beats repairing it.
- A scoping call, followed by access to whatever exists: repository, designs, or even just a written idea, and we return an assessment and milestone plan within about a week. To move fast after kickoff you need three things: a decision maker who can answer product questions within a day, access to the accounts and systems involved, and agreement on what the first shipped milestone is. Projects stall on slow decisions far more often than on slow code.
