Hire API & integration developers
who build for the retry, not just the happy path.
PixelCrayons is your point of contact for hiring an API and integration developer: we scope the role and write the proposal. Our sister company ValueCoders then sources and delivers the specialist, or a pod, who treats every third-party connection as something that will eventually fail, and designs for that on day one: queued events, idempotent handlers (a retried event applies once), alerts that fire before your customer notices. Vetted on real integrations before they touch yours, working inside your existing team's stack and code review, scaling monthly without a hiring cycle. You interview the specialist who'd actually build the integration before anything is signed.
Interview before signing · One contact throughout · Scale monthly
Tell us about the role
Start Your Enquiry
Send a short brief. Once we have a complete brief, we confirm the date you will receive your itemised proposal.
PixelCrayons is your point of contact for hiring an API and integration developer; our sister company ValueCoders sources and delivers the specialist, under one proposal and one account team. They connect your CRM, payment, ERP and marketing platforms through defensively-built integrations: webhooks that retry instead of hoping, rate limits respected, every external call logged. They work alongside your existing developers in your repositories and your code review, not around them. You brief PixelCrayons once and interview the ValueCoders specialist before anything is signed; PixelCrayons remains the account owner you escalate to, get billed by and hear status from. You scale the engagement monthly and skip the recruiting cycle a permanent integration hire would take.
Judge the record,
not the adjectives.
Outcomes tied to real engagements, not averages.
Integration skills,
wired for handover.
Not a script that calls three endpoints and calls it done. An API integration developer whose job is what happens when a receiver goes down, a token expires, or a payload changes shape without warning.
Integration engineering
- REST and GraphQL API design and consumption
- Webhook architecture: event queues, delivery guarantees, dead-letter handling
- OAuth2, API keys and token-refresh flows
- Rate-limit handling with backoff and retry logic
- Idempotent request design: safe replays, no double-charges or double-ships
Platforms connected
- CRM integrations: Salesforce, HubSpot and equivalent platforms
- Payment gateway integrations: reconciliation, not just checkout
- ERP and inventory syncs: stock, orders and fulfilment kept in one truth
- Marketing and lifecycle platform integrations: Klaviyo, Mailchimp and similar
- Shipping and logistics API connections
The delivery layer
- Monitoring and alerting for failed or degraded syncs
- Integration maps and runbooks written for handover, not just for themselves
- Working inside an existing engineering team's stack, conventions and code review
- Sandbox-first builds, with credentials in your vault from day one
- Version control and PR discipline that fits your team's existing workflow
What an integration developer
does once the sync is live.
Most of the job happens after the first successful call, and that is where you should judge them.
The week, beyond the build
New connections are only part of it. A typical week includes reading the failure log from the last few days, working out why one order reached the ERP twice, updating a handler because a vendor added a field to its webhook payload, and rotating a token before it expires over a weekend. They also read the vendor changelogs your team never opens, because a deprecation notice is cheaper to act on now than after the endpoint goes quiet. Good integration work looks boring from the outside. That is the point of it.
Interview signals that matter
Ask them to describe the last integration that failed in production and what they changed afterwards. Strong candidates answer with specifics: the event that arrived out of order, the retry that duplicated a charge, the alert that should have fired sooner. Then give them a scenario: your CRM goes down for an hour and comes back. What happens to the events sent in between? You want queues, idempotency keys and a replay plan in the answer. Ask how they would find out it had happened, too: an alert, not a customer email. Candidates who only talk about the libraries they like are describing the happy path.
Access to sort before they start
Sandbox accounts for every platform involved, not production credentials pasted into a chat. A secrets vault, or at least a shared password-manager folder they can be added to. Admin contacts at each vendor, because some API limits can only be raised by asking. The existing integration code, however messy, plus any scripts someone runs by hand when a sync breaks. Most importantly, decide which system owns each piece of data: if the CRM and the ERP both think they own the customer address, no amount of engineering will stop them overwriting each other.
Where the role ends
An integration developer connects systems; they do not decide how your business processes should work. If sales and finance disagree on when an order counts as closed, settle that first, or the integration will faithfully automate the argument. They are also the wrong hire for a platform you have not chosen yet, because evaluating vendors is a product or operations decision. And if the real need is a single one-off data import, a scoped project costs less than an ongoing engagement. Bring them in when connections need building, watching and maintaining over time.
Brief to embedded,
one contact throughout.
Brief & shortlist
You describe the platforms, the stack and the gap to PixelCrayons; ValueCoders proposes the specialist, or pod, whose actual delivery history fits it. No generic CVs.
Interview them
You meet the ValueCoders specialist who'd build the sync, not an account manager describing the webhook logic secondhand. Press them on retries, rate limits and failure handling; if the fit isn't right, we propose someone else.
Inside your repos
Repository access granted, existing integrations reviewed, your stand-ups and code review joined, and the first working session on your integration code under way.
Scale either way
Add a second specialist when the integration backlog grows; step down when it doesn't. Integration capacity resizes month to month through the same PixelCrayons account team, so a growing backlog never turns into a headcount decision.
Requests, approvals and the weekly review for this engagement live in your Prism workspace. Each decision is recorded against the outcome it expected. See how Prism runs an engagement →
Meet the actual people before anything is signed
The person,
plus the system.
Hire API developer talent through PixelCrayons: we scope the role and run the relationship, and ValueCoders supplies the developer. You get a single contact and a well-matched specialist, and accountability is never in question.
Vetted on real integrations, not puzzles
Every specialist proposed has built live syncs before yours, vetted against ValueCoders' own delivery standards. Interview performance shows how someone talks about idempotency; a sync that's survived a real token expiry shows whether they actually built for it.
One point of contact for the whole relationship
PixelCrayons scopes the integration role and writes the proposal, then handles escalation, billing and status as your one account team, while ValueCoders' specialist builds the syncs. ValueCoders is named as the delivery team on this page and throughout the engagement, never hidden behind our name.
Inside your codebase, not a portal
Your repositories, your code review, your stand-ups, your ticketing. Dedicated means writing alongside your existing engineers under your conventions, not integrations delivered as a black box you can't maintain once the engagement ends.
Documentation you can act on
Integration maps, runbooks and credential handover written as the work happens, not reconstructed at offboarding. If the specialist leaves, your team inherits a system it can actually run, not a mystery with a login page.
How you typically hire,
versus through us.
An in-house hire earns its cost once integration work is a permanent, full-time function rather than a recurring backlog, and we'll say so plainly if that's where you are. Most teams need less than that.
| Hiring it yourself | Through PixelCrayons | |
|---|---|---|
| Time to a working specialist | A full recruiting cycle: sourcing, interviews, notice periods, then a learning curve on your integrations | A shortlist within days and an interview before anything is signed |
| Vetting | A resume and a technical interview; you find out whether the retry logic works once a real webhook fails | Delivery history on real integrations, reviewed by ValueCoders' own standards |
| Management overhead | Yours entirely: recruiting, then auditing every integration for what happens when it fails | PixelCrayons' account team handles coordination and escalation; you direct which platforms connect next, not the admin around it |
| Scaling | A new hiring cycle each direction: months up, severance down | Resize monthly: add a specialist or step down with a conversation |
| Risk when it doesn't work | A mis-hire costs velocity until it's caught, then a difficult exit | Propose-again is built in; leaving takes a handover call with the integration maps, not a negotiation |
A migration that didn't lose a single record.
A PixelCrayons migration, not ValueCoders' work. When a D2C fragrance retailer moved onto a new commerce platform, the catalogue, orders and customer records only survived the move because every connected system was mapped and verified before anything switched. That's the same discipline an integration developer applies to a CRM or payment sync. The full case study sets out the migration's numbers and timeline.
Read the case study →Our commitments
Each one says where it applies and links to its full terms.
Time-zone overlap
At least four hours a day inside your core working hours. Two hours plus a daily written handover for the US West Coast.
Managed specialists only; not a staffing promise for project teams.
Full termsClear IP & Ownership Terms
Your materials remain yours. Bespoke deliverable rights, licences and handover are agreed before work starts.
All engagements.
Full termsClear Delivery & Escalation Ownership
Know who coordinates your engagement, who owns the work and how to escalate an issue.
All engagements. Roles may be combined and vary with your engagement.
Full termsQuestions buyers ask before they commit
Why not just hire a freelancer?
A freelancer can be the right choice for a single, well-defined task. We are set up for work that needs an accountable team: a named coordinator, delivery reviewed by QA and a senior lead before release, and continuity arrangements written into the engagement. Confidentiality, ownership and escalation terms are agreed in writing before work starts.
How does time-zone overlap work?
Your engineers work at least four hours a day inside your core working hours. We set the window with you before the engagement starts and hold it for as long as the engagement runs. For the US West Coast the live overlap is two hours each morning, with a written handover at the end of every Indian day. We do not run night shifts: engineers who work nights leave quickly, and keeping the same people on your team matters more to us than a longer overlap.
Can we try you before we commit?
For eligible managed specialists, yes: up to 14 calendar days or 80 logged working hours, whichever comes first. End within the trial and pay nothing for eligible trial hours; continue beyond it and those hours are billed at the agreed rate, and unpaid trial work remains ours if you stop. For project work, and for roles outside the trial, we offer a paid pilot with its scope, acceptance criteria, duration and fee agreed before it starts.
What if we want to stop?
Cancellation, notice and any renewal terms are written into your proposal or statement of work before you accept it. If an engagement ends early, we hand over completed, paid-for work and list any unfinished work separately. For an eligible specialist trial, you can stop within the trial window and pay nothing for eligible trial hours.
How we handle claims, credentials and your data: group credentials, dated ratings, how case figures are signed off, client permissions and data handling.
Frequently
asked.
ValueCoders, our sister company. PixelCrayons scopes the integration role, writes the one proposal and is your contact for the whole engagement, but the developer you interview and work alongside belongs to ValueCoders' bench. We state that openly, here and for as long as the engagement runs, and never present them as ours.
We typically respond within four business hours. Once we have a complete brief, we confirm the date you will receive your proposal; the shortlist from ValueCoders follows within days, and you interview the specialist the same week (real integration code they've shipped is available under NDA on request). If your existing integrations have undocumented failure modes, and most do, expect the first fortnight to prioritise mapping what's already there before new work begins.
NDA first, then repository and platform-sandbox access. They review your current integrations and write up what they found. Once you agree the first month's priorities, they join your code review and stand-ups from week one, so changes happen inside your process, not parallel to it.
The categories most engineering teams need connected: CRMs, ERPs and accounting platforms, payment gateways, shipping and logistics providers, and marketing or lifecycle tools, through official APIs wherever one exists. If a platform is new to the specialist, they say so, start in its sandbox, and price the discovery honestly rather than pretending familiarity.
A single integration developer covers most stacks on their own. A platform specialist or extra monitoring coverage joins when the backlog genuinely justifies it, and the monthly resize runs both directions. We'd sooner propose one integration developer and add later than sell you a pod before the sync backlog calls for it.
Say so, early. Swapping in a different integration developer is a standard part of the engagement, not a favour you have to negotiate. The replacement inherits the documentation the first specialist kept (integration maps, runbooks, decisions), so a switch costs days, not a restart. And if the conclusion is that you need a different shape of help entirely, a scoped project, not a person, we'll route you there instead.
Interview the person,
not the pitch deck.
Brief PixelCrayons on the platforms and the gap. We scope the role and stay your point of contact throughout; our sister company ValueCoders delivers the specialist under one written proposal, the shortlist follows within days, and you meet the actual specialist before anything is signed. If what you really need turns out to be a project rather than a person, we'll say so on the first call.
Reply within four business hours (typical) · Interview before signing · Scale monthly
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