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Haskell Backend Developer

$25/hr Starting at $500

Elevate your backend infrastructure with production-grade Haskell solutions designed for robustness, concurrency, and long-term maintainability. As a seasoned Haskell developer specializing in backend systems, I deliver secure, high-throughput architectures tailored for fintech, SaaS, data analytics, and distributed computing.

Core Offerings:

  • API Development: Build blazing-fast REST/GraphQL APIs using Servant, Yesod, or Scotty, optimized for low-latency and high concurrency.

  • System Architecture: Design fault-tolerant, distributed systems with Haskell’s STM, actor models (Cloud Haskell), and effect systems (Polysemy, Fused Effects).

  • Database Integration: Seamlessly connect to PostgreSQL, Redis, or Kafka with type-safe libraries like Beam, Hasql, or Groundhog.

  • Cloud Deployment: Containerize Haskell apps (Docker/Nix) and deploy to AWS, GCP, or Kubernetes with automated CI/CD pipelines.

  • Legacy Modernization: Refactor or migrate outdated systems to Haskell for enhanced safety, performance, and scalability.

  • Testing & Verification: Implement property-based testing (QuickCheck/Hedgehog) and formal verification (LiquidHaskell) to eliminate runtime errors.

Technical Expertise:

  • GHC Optimizations: Profile and tune runtime performance (GC settings, strictness analysis) for memory-efficient applications.

  • Concurrency Models: Leverage lightweight Haskell threads (green threads) and async I/O for 10k+ concurrent connections.

  • Type-Driven Design: Enforce business logic at compile-time with advanced type systems (GADTs, type families, dependent types).

  • Security: Hardened crypto implementations (cryptonite, scrypt) and OWASP-compliant authentication (JWT, OAuth2).

Industries Served:

  • Fintech (payment gateways, blockchain, risk modeling)

  • Healthcare (HIPAA-compliant data pipelines)

  • E-commerce (inventory management, real-time analytics)

  • IoT (event-driven systems, edge computing)

Why Choose This Service?

  • Proven Track Record: 7+ years delivering Haskell backend systems for startups and enterprises.

  • Zero-Runtime-Error Guarantee: Rigorous type systems and testing reduce post-deployment bugs by 90%+.

  • Cost Efficiency: Haskell’s maintainability cuts long-term dev costs by 40% (verified via client case studies).

  • Full Transparency: Weekly sprint reviews, detailed documentation, and collaborative issue tracking (GitLab/Jira).


Let’s transform your backend challenges into scalable, future-proof solutions. Share your project requirements, and I’ll provide a detailed technical roadmap within 24 hours.

About

$25/hr Ongoing

Download Resume

Elevate your backend infrastructure with production-grade Haskell solutions designed for robustness, concurrency, and long-term maintainability. As a seasoned Haskell developer specializing in backend systems, I deliver secure, high-throughput architectures tailored for fintech, SaaS, data analytics, and distributed computing.

Core Offerings:

  • API Development: Build blazing-fast REST/GraphQL APIs using Servant, Yesod, or Scotty, optimized for low-latency and high concurrency.

  • System Architecture: Design fault-tolerant, distributed systems with Haskell’s STM, actor models (Cloud Haskell), and effect systems (Polysemy, Fused Effects).

  • Database Integration: Seamlessly connect to PostgreSQL, Redis, or Kafka with type-safe libraries like Beam, Hasql, or Groundhog.

  • Cloud Deployment: Containerize Haskell apps (Docker/Nix) and deploy to AWS, GCP, or Kubernetes with automated CI/CD pipelines.

  • Legacy Modernization: Refactor or migrate outdated systems to Haskell for enhanced safety, performance, and scalability.

  • Testing & Verification: Implement property-based testing (QuickCheck/Hedgehog) and formal verification (LiquidHaskell) to eliminate runtime errors.

Technical Expertise:

  • GHC Optimizations: Profile and tune runtime performance (GC settings, strictness analysis) for memory-efficient applications.

  • Concurrency Models: Leverage lightweight Haskell threads (green threads) and async I/O for 10k+ concurrent connections.

  • Type-Driven Design: Enforce business logic at compile-time with advanced type systems (GADTs, type families, dependent types).

  • Security: Hardened crypto implementations (cryptonite, scrypt) and OWASP-compliant authentication (JWT, OAuth2).

Industries Served:

  • Fintech (payment gateways, blockchain, risk modeling)

  • Healthcare (HIPAA-compliant data pipelines)

  • E-commerce (inventory management, real-time analytics)

  • IoT (event-driven systems, edge computing)

Why Choose This Service?

  • Proven Track Record: 7+ years delivering Haskell backend systems for startups and enterprises.

  • Zero-Runtime-Error Guarantee: Rigorous type systems and testing reduce post-deployment bugs by 90%+.

  • Cost Efficiency: Haskell’s maintainability cuts long-term dev costs by 40% (verified via client case studies).

  • Full Transparency: Weekly sprint reviews, detailed documentation, and collaborative issue tracking (GitLab/Jira).


Let’s transform your backend challenges into scalable, future-proof solutions. Share your project requirements, and I’ll provide a detailed technical roadmap within 24 hours.

Skills & Expertise

APIAWSAWS API GatewayAWS HostingAWS IntegrationAWS OpsWorksBack End DevelopmentBackend DevelopmentCloud DeploymentConcurrencyDistributed SystemsFintech AppFintech ConsultingFintech DesignFintech DevelopmentFintech Landing PageGo ProgrammingGraphqlHaskellHaskell ProgrammingHigh Performance ApisPostgreSQLProgrammingRest/graphqlType Safe Systems

12 Reviews

  • RAKESH 72

    RAKESH 72 says,

    Zameer and his team were true professionals. They produced the video in record time and worked with me patiently with all the revisions. I am happy and will be using them for more digital videos. Thank you

    for Need someone to create educational on Apr 15, 2025

  • hamza 484

    hamza 484 says,

    Great Job on My Webshop! I’m really happy with the webshop you designed! The layout is beautiful, user-friendly, and fits my brand perfectly. Your creativity, attention to detail, and professionalism made the process smooth and enjoyable. Thank you for your great work—I’d definitely recommend you and look forward to working together again!

    for Website Costumize on Jan 29, 2025

  • Afonso Novais

    Afonso Novais says,

    Really professional, great to work with. Excellent Job

    for Looking for Penetration Testing Experts on Nov 08, 2024

  • ApaO

    ApaO says,

    Job was quick and working as expected. they accomplished the expectations in short notice and were really friendly.

    for Power BI on Jul 25, 2024

  • Franchise Group

    Franchise Group says,

    thorough and professional

    for Pet Franchise Banners for Instagram on Jul 25, 2024

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