Hire mobile developers

What should you decide before hiring a mobile developer?

Hire for the app work you need someone to own. Put the platform, current codebase, and next release into the role description before listing preferred tools.

An existing Android app with crash reports needs a different assessment from a new cross-platform product. A developer joining an established mobile team also needs a different scope from someone becoming its sole mobile engineer.

Write a short role scorecard that answers these questions:

• Which platforms and devices must the hire support?
• What should they ship or fix first?
• Who owns the APIs the app uses?
• Who reviews code and approves releases?
• What work hours must overlap with the rest of the team?
• Which decisions can the developer make without waiting for approval?

Use that scorecard throughout the search. If a requirement does not connect to a task, reconsider making it a hiring filter.

Match the assessment to the platform

For an iOS role, ask candidates to walk through an iOS app they helped release. For Android, ask for the equivalent Android work. Focus on their own contribution, including what happened after users installed the release.

For a cross-platform role, ask for evidence from both target platforms. Have the candidate describe a bug that appeared on one platform and the steps they took to isolate it.

If you plan to hire a React developer for a React Native app, assess mobile work explicitly. Ask about device testing, native integrations, and store submissions. A web portfolio should prompt follow-up questions about the mobile responsibilities in your role.

Avoid changing frameworks during hiring unless that decision is part of the job. Otherwise, you may end up assessing migration opinions while the actual backlog remains untouched.

Set the seniority through decisions the hire must make

Describe what the engineer can expect from the team. Will someone break down tickets and review each change? Or must the hire decide how to structure the app and guide other engineers?

For a role with close technical support, assess whether the candidate can complete a defined task and explain when they need help. For a technical lead, ask them to review a proposed release plan. Have them identify unresolved decisions and explain which work they would delay.

Use the same distinction when checking references. Ask what the person owned without supervision and what support helped them succeed. A title alone should not settle whether they can run your mobile work.

Draw the boundary between mobile and backend work

Before you hire mobile application developers, assign ownership of login, data access, and API changes. Include the awkward cases: an expired session, a repeated request, or a user who loses connectivity during a save.

If you also need to hire backend developers, create a separate scorecard for that work. State who changes the server contract and who keeps the app compatible with it.

For a small team, one person may take both roles. Test both responsibilities and give the candidate enough context to challenge the workload. Do not assume a mobile portfolio proves they can run your server systems.

A useful first assignment might be fixing a failed login flow through release. It gives the hiring team something concrete to assess: diagnosis, code changes, tests, and the handoff to whoever approves deployment.

What does the data say about cost, timing, and nearshore overlap?

Use broad hiring data to set a planning baseline. Keep it separate from the quote and start date for your actual role.

The US median annual wage for software developers was $135,980 in May 2025, according to the Bureau of Labor Statistics. That figure covers software developers broadly. It is not a mobile-specific salary or a total employer-cost estimate.

Do not compare that wage directly with a provider's all-inclusive invoice and call the difference savings. First put both options on the same basis.

For each proposal, record:

Ask for an annual view as well as a monthly price. Have the provider identify any costs that fall outside its invoice. Use the same role scope and seniority when comparing quotes.

Include your own team's time in the decision. Name the manager who will review work and the engineer who will help with setup. If the proposed hire needs support you cannot supply, revisit the seniority or delivery model before comparing prices.

Separate offer acceptance from the first working day

SHRM describes median time-to-fill in 2025 as roughly a month and a half for executive and nonexecutive roles. Its measure runs from job requisition to offer acceptance. This is a broad recruiting benchmark, not a mobile hiring forecast. See SHRM's recruiting findings.

Track your own search through distinct milestones: approved role, qualified shortlist, interviews, accepted offer, and first working day. Ask a provider which milestone its timeline promises.

Then work backward from the release you need to support. Reserve interview time and name the person who can approve an offer. Before the hire starts, prepare repository access, a working development setup, and a task with clear acceptance criteria.

A fast shortlist will not resolve an internal debate about whether the app needs a senior maintainer or a new technical lead.

Check overlap by city and season

For nearshore hiring in Latin America, use the candidate's city and agreed schedule. Country names alone are too broad for a working-hours agreement.

Mexico City and San José, Costa Rica, use UTC-6 without seasonal clock changes. Tijuana follows a different schedule, including daylight saving time. See the IANA North America time zone data.

Bogotá uses UTC-5 without daylight saving time. Buenos Aires and São Paulo use UTC-3 without seasonal clock changes. See the IANA South America time zone data.

Write the agreed overlap in both people's local times. Check it when the US team's clocks change. Include code reviews and release windows, rather than agreeing only on attendance at a daily meeting.

Ask separately about support outside normal hours. A shared daytime schedule does not establish an on-call agreement.

How do the hiring models differ for mobile work?

Choose the model based on who should manage the person and who should own delivery. Then check that the proposed contract matches that choice.

Treat the table as a way to frame questions. Providers may package these services differently, so make the written scope control the decision.

Choose a dedicated hire for continuing product work

If you want to hire dedicated mobile developers, describe the work after the next launch. Include maintenance, planned releases, and support for the rest of the engineering team.

A dedicated role is worth comparing when there is a continuing backlog and someone available to manage it. Give the hire a named reviewer and a clear path for decisions about product behavior.

If you need only a bounded fix, compare a project proposal. Define the bug, affected devices, test conditions, and handover requirements. Specify what happens if the fix passes in a test build but fails during release.

For either model, assign ownership of the repository and release accounts. Ask how access will be granted and removed. Keep the handover requirements visible from the start.

Decide whether you need a person or a delivery team

A placement can fill a role inside your team. A project engagement can assign a broader delivery scope to a supplier. The contract should say who supplies design, QA, and release management.

If you hire dedicated mobile app developers but have no product owner, settle who will prioritize their work. Otherwise, the developer may receive conflicting requests from engineering, sales, and support.

The same applies if you hire dedicated backend developers alongside them. Name the person who resolves API disputes and decides whether a release can proceed.

Keep selection criteria consistent across models. Ask who will actually write the code, review the proposed scope with that person, and check how substitutions are handled.

What should you ask a provider before reviewing candidates?

Send the same role scorecard to every provider. Ask for a response tied to your platform and backlog, with a written explanation of price and responsibilities.

What mobile work did each candidate personally own?

Ask for a walkthrough of a shipped app. Have the candidate distinguish their contribution from the rest of the team's work.

Useful prompts include:

• Show a feature you took from a ticket to a release.
• Describe a crash or device-specific defect you investigated.
• Explain how you tested a poor connection or failed API call.
• Walk through a release that needed a follow-up fix.
• Describe a technical choice you would change now.

If prior work is confidential, allow a sanitized discussion. Do not ask candidates to disclose another company's code or credentials.

Listen for a clear account of the problem and the candidate's decisions. Follow up when the answer stays at team level.

Can you assess the work with a small paid exercise?

Use a task that resembles your app without asking candidates to complete your production backlog. For example, provide a mock API and ask them to display a result with loading and failure states.

Agree on the time limit before they start. Give each candidate the same instructions, including whether AI tools are allowed and what they should disclose.

Review the exercise together. Ask the candidate to explain a choice, identify a weakness, and describe the next test they would write. If they used generated code, ask how they checked its behavior.

Assess accessibility in the same exercise. Ask how someone using a screen reader would move through the flow and understand an error. Make those requirements part of the task rather than a surprise at the end.

How will you compare the finalists?

Have interviewers record their judgments before discussing candidates together. Tie each judgment to something the candidate showed or explained.

A short review sheet can separate these decisions:

Resolve differences with a focused follow-up question. If one interviewer doubts release experience, ask for a release walkthrough. Repeating a general interview will not answer that specific concern.

How will the mobile developer work with your backend team?

Use a failure scenario from your product. An app submits a request, loses its connection, and cannot tell whether the server saved it. Ask the candidate to explain what they would inspect and who they would involve.

For a Node.js backend, ask which changes belong on the server and which belong in the app. For a Salesforce connection, ask who owns permissions, data mapping, and failed syncs.

These discussions help define the role as well as assess the candidate. If every answer requires a backend owner you do not have, address that gap before making an offer.

What does the quote include?

Request a written price for the exact role. Ask about equipment, test devices, paid leave, and any charges tied to changes or termination.

Confirm the billing currency and how price changes are handled. Ask who answers payroll questions and who resolves a disagreement about the service.

For a replacement promise, ask what triggers a new search and what happens during the gap. Distinguish replacement search support from release cover, knowledge transfer, and compensation for missed work.

What must be ready before the start date?

Assign an internal owner for onboarding. Prepare a device list, access approvals, and a documented way to build and test the app.

Keep production access limited to the work the person needs. Establish who controls signing credentials and store accounts. Ask the provider to explain its handover process when a placement ends.

Make the first task small enough to review. A successful first change should show that the developer can build the app, understand a request, and work through your review process.

Agree on how you will review the hire's early work. Use the original scorecard and completed tasks. Discuss blocked access or unclear requirements separately from code quality, so the review identifies what needs to change.

When should you consider Opus for a mobile role?

This site is an Opus-owned reference; recommendations are editorial.

Consider Opus when you want to discuss a placement that your own team will manage. Take the mobile scorecard to that conversation and ask whether it can support your exact platform, seniority, and release responsibilities.

Opus states: "The client chooses the finalist and manages day-to-day work." That leaves your team responsible for assigning priorities and reviewing delivery.

Talk to Opus about a role.

Compare the quoted scope with your staffing plan

Opus states: "Opus charges one flat monthly rate per hire. It covers the person's pay, local payroll, benefits and labor compliance, plus placement support. There is no separate recruiting fee. The rate depends on role, seniority and location."

Published dollar rates: Not published.

Ask for a written quote against your role scorecard. Clarify how equipment and mobile test devices will be handled. Keep any separate QA or backend hiring costs in your budget.

Do not infer a mobile specialization from a general engineering placement claim. Ask to see candidates whose work matches the app you need to maintain or build, then use your own technical assessment.

Review replacement terms alongside your handover plan

Opus states: "Every placement carries a lifetime replacement guarantee with no cap and no time limit."

Ask how the process would work for your mobile role. Establish who keeps a release moving while a replacement search takes place. Keep build instructions and release notes in systems your team controls.

Before proceeding, send the platform, current app status, first assignment, and required working hours. Include the backend owner and the manager who will approve the hire. Ask Opus to respond with a proposed scope and quote for that specific job.

Talk to Opus about a role.

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