LEET SOFTWARE LLC

Senior product engineering, paid weekly

Get a senior engineer shipping this week.

Whether you're building something new or trying to get something existing unstuck, we can be your end-to-end engineering function starting at $2,000 a week.

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01 / How it works

One concurrent body of work. A fractional senior dev. Progress you can see.

$2,000 / week

For founders and small teams who need someone to take ownership of the engineering function end-to-end without making a hire.

Keep a list of requests in GitHub or Linear issues; we work on one at a time and show what changed, what is next, and what needs your decision.

Alex Lazar leads the work and reviews what ships, with LeetSoftware teammates joining when the job calls for them.

We clarify each request, keep the active work visible, and hand over the result.

You can cancel before the next renewal. If the first week is not right for you, request a refund during that week.

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02 / Selected work

We've been around the block.

We're a team of tech professionals who have been in and around startups for over a decade each. We've launched products that had to handle thousands of events per second or hundreds of thousands of dollars in first-week volume.

  1. Real-time trading platform

    The prototype ran out of memory every hour.

    It ingested Binance futures data and computed trading signals based on a proprietary formula. We separated ingestion, processing, signal computation, execution, and a backend for frontend into services, and used low-latency queues to manage the workload.

    The shipped system handled thousands of market-data points per second across hundreds of assets.

    Read the case study

  2. Custom iGaming platform

    The beta exposed flaky, inconsistent, and often slow third-party APIs.

    We improved observability then built an idempotent system with checks, stuck transaction cancellation, retries with fee bumps, safe state rollbacks, and visible error states for game rounds that could not settle.

    Launch was uneventful. The first week did $300k in volume.

    Read the case study

  3. A monitoring & analytics platform

    With tens of millions of data points, some dashboards took minutes to load.

    To make it to launch in time, we implemented heavy caching with long TTLs. To fix the root cause, we created background jobs to precompute daily data aggregates.

    Page load time fell to one second, with staleness at no more than a few minutes.

    Read the case study

03 / New products, too

We can get it done right on day one.

For Paragon's social apps, we scoped the product and assembled a team with which we delivered in 22 weeks. The client loved us so much that they returned with more work.

Read the case study

04 / Next step

Ready when you are.

Send Alex the product or repository link and a short note about the work. We will confirm fit and availability, then we can get going. We can typically start an engagement within 48 hours if the fit is right. If it turns out we are not working out, you can get a full refund during the first week.

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