Freelance Backend Engineers in New YorkFreelance Backend Engineers in New York
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Matt Bierman's avatar
Matt Bierman
New York, USA
Bridging the gap between design and development
    $50k+
    Earned
    11x
    Hired
    5.0
    Rating
    98
    Followers
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Bridging the gap between design and development
Cover image for REZA | Web Development
REZA | Web Development
0
132
Cover image for elysewalker | Web Development
elysewalker | Web Development
0
26
Cover image for Contra.com | Web Development
$5.2K+ earned
Contra.com | Web Development
3
190
Cover image for The 2022 Podcast Trends Report by SiriusXM | Web Development
The 2022 Podcast Trends Report by SiriusXM | Web Development
1
261
Backend Engineer(2)
Greg Jacoby's avatar
Greg Jacoby
New York, USA
Transparent. Communicative. On time, on budget.
    $10k+
    Earned
    2x
    Hired
    5.0
    Rating
    21
    Followers
Transparent. Communicative. On time, on budget.
Cover image for Rain Bird LNK iOS App
Rain Bird LNK iOS App
0
33
Cover image for Houston Grand Opera - Next.js
Houston Grand Opera - Next.js
0
114
Cover image for Lift Plan It - platform for creating crane lifts
Lift Plan It - platform for creating crane lifts
3
131
Cover image for NASA STMD - website survey
NASA STMD - website survey
0
49
Backend Engineer(2)
Bach Le's avatar
Bach Le
New York, USA
Crafting Your Digital Presence 💻 😄
    5.0
    Rating
    5
    Followers
Crafting Your Digital Presence 💻 😄
Cover image for Blacklight - Website Privacy Inspector
Blacklight - Website Privacy Inspector
0
39
Cover image for Plastic-free Gardening Store: Planté
Plastic-free Gardening Store: Planté
0
40
Cover image for Vengo Films Website & CRM Automation
Vengo Films Website & CRM Automation
0
12
Cover image for OHOS Media: NYC Media Production Portfolio Website
OHOS Media: NYC Media Production Portfolio Website
0
30
Backend Engineer(2)
Tamzid Ullah's avatar
Tamzid Ullah
New York, USA
Building time series forecasting pipelines
New to Contra
Building time series forecasting pipelines
Cover image for Quantura: Building an Inspectable Forecasting Platform
Quantura: Building an Inspectable Forecasting Platform
1
1
Cover image for Forecast API, SDKs & OAuth
Forecast API, SDKs & OAuth MCP — Quantura I built a shared Search → Download → Forecast API for Quantura so developers can move from a discovered market or dataset to historical observations and asynchronous forecast results. The integration includes JSON/CSV exports, job status handling, provider and model metadata, scoped API access, and OAuth sign-in for MCP clients. Python and TypeScript SDKs plus a CLI provide reusable integration examples. I also organized the public RapidAPI listing into clear endpoint groups, documented usage and authentication, and added examples for scheduled forecasting workflows. This work is useful for teams connecting forecasts to their own apps, notebooks or AI tools. Explore the API: https://rapidapi.com/tamzid2001/api/quantura2
0
27
Cover image for Scout: AI-assisted forecast research —
Scout: AI-assisted forecast research — Quantura I built Scout inside Quantura to help users interrogate the history and forecast they are actually viewing. Three contextual question cards organize the experience around Forecast, History and Evidence. Users can inspect median changes and uncertainty ranges, ask about observed highs and lows, and review data sources and units. Structured answers use the selected observations and forecast values as context. The interface also supports chart annotations, user notes, saved conversations, and named CSV previews before forecasting. The goal is to make a forecast easier to inspect, explain and revisit. My work combines TypeScript backend logic, a JavaScript research interface and interactive charting. Explore: https://quantura.studio/forecasting
0
23
Cover image for Forecasting pipelines across market and
Forecasting pipelines across market and economic data Built as part of Quantura, my forecasting and research product. I implemented a shared data workflow for Alpaca, Dukascopy, Gemini, Treasury Fiscal Data, World Bank Data360 and BigQuery public datasets. The work covers provider discovery, series selection, timestamp and unit normalization, observed-history downloads, six forecast quantiles and scheduled execution. Data coverage and model requirements remain explicit, and missing observations are not invented. Deliverables include Python/TypeScript integrations, JSON/CSV exports, asynchronous job handling and chronological historical evaluation. I can build a similar workflow for your supported time-series data, with clear inputs, milestones and operating costs. Explore: https://quantura.studio/
0
26
Backend Engineer(2)
Syed Sakib's avatar
Syed Sakib
New York, USA
Full-Stack Developer| Cloud AI/ML Software Engineer
Full-Stack Developer| Cloud AI/ML Software Engineer
Cover image for Mother of Invention - Innovative Baby Products Marketplace
Mother of Invention - Innovative Baby Products Marketplace
0
11
Cover image for AI-Powered Baby Name Generator
AI-Powered Baby Name Generator
0
9
Cover image for Web Trading Platform v2
Web Trading Platform v2
0
29
Cover image for tvirus-01/fastapi-based-microservices
tvirus-01/fastapi-based-microservices
0
31
Backend Engineer(5)
Alex Sancivieri's avatar
Alex Sancivieri
proNew York, USA
Fixed-scope iOS & Android apps and light SaaS builds
New to Contra
Fixed-scope iOS & Android apps and light SaaS builds
Cover image for API Locker: API Proxy & Secrets Management SaaS
API Locker: API Proxy & Secrets Management SaaS
0
2
Cover image for Crown: Barber Booking App App - App Store
Crown: Barber Booking App App - App Store
0
1
Cover image for Sip App Water Tracking and Fasting Integration
Sip App Water Tracking and Fasting Integration
0
2
Cover image for Rizz AI Keyboard — Wingman App - App Store
Rizz AI Keyboard — Wingman App - App Store
0
2
Backend Engineer(1)