
Millions of people use Freelancer to turn their ideas into reality.
Trusted by leading brands and startups
Post your project for free and connect with skilled freelancers ready to start today. Compare bids, ratings and portfolios, and only pay when you're happy with the work.
~470 sec
to first bid
52+
bids per project
10k+
freelancers online
No upfront cost Ā· pay only when you're happy with the work

1.8
1.8
100%

BARAKALDO, Spain
$25 USD per hour
Iām married birth on Markina (Bizkaia) . Computer Engineer Degree by University of Deusto with qualification of excellent in the End of Career thesis āManagement of Supplying in a navigation companyā. As experience has: Five years working in the Data Centre on Naviera Aznar as programmer on equipments S/3 and S/34 of IBM in RPGII language. Six years working as Analyst , System Technical in Elecnor on equipments s S/36,S/38 of IBM. Nowadays Iām working from 21 years on Formica as IT Manager where we have a iSeries working on languages RPG/400 and COBOL/400, and on Novell Netware and W2000/W2003/W2008 servers . I have experience on BPCS, PCāS, client servers, Communications, design and develop of applications ,Internet ,ERPās and domain of English cause is necessary on my actual job with very often travels to UK and relationship with another companies of the group.. Waiting that my services can be useful I put to your arrangement .

9.9
9.9
90%

Machakos, Kenya
$50 USD per hour
As a software architect and Python developer with 10+ years of experience, I design and deliver full-stack, high-performance crypto trading automation systems for both individuals and organizations. Notable project: 10xTraders.ai ā a fully cloud-native, multi-user crypto trading platform that supports strategy generation, live trade execution, smart notifications, user dashboards, and automated scaling, integrating TradingView charts and custom AI modules. My expertise includes: Strategy Engine Development: Design, testing, and deployment of custom and modular trading strategies (momentum, DCA, grid, arbitrage, trend-following, mean reversion, risk management overlays, etc). Exchange Integrations: Multi-exchange (Binance, Bybit, KuCoin, Coinbase, OKX, and more) spot, margin, and derivatives connectivity, robust error handling, and seamless authentication. Backtesting & Simulation: Fast, accurate historical and forward backtesting engines; optimization tooling; walk-forward analysis; metric dashboards. Automated Live Trading: Real-time execution, position sizing, dynamic stoploss/TP, risk management, error recovery, and live trade monitoring. Signal & Webhook Handling: Integration with TradingView, Telegram, Discord, email alerts; advanced webhook processors; custom event triggers. Trading Terminal UI: Web-based terminals for trade monitoring, live logs, analytics, and order management; deep TradingView chart integration; responsive dashboards. AI/ML-Driven Trading: Custom modules for signal generation, position management, and adaptive strategy optimization with machine learning. Portfolio Management: Multi-asset and multi-strategy allocation, wallet/rebalancing, cross-exchange tracking, P&L and risk statistics. Notification & Reporting: Real-time logging, alerting (web, mobile, email, Telegram), performance reporting, and alerting for trade state, errors, fills, or margin events. Cloud & DevOps: Docker, Kubernetes, Helm, NGINX, automated CI/CD pipelines, secure API exposure (REST/WebSockets), volume scaling for thousands of concurrent users. User & Multi-Tenancy: Auth, multi-user session management, isolated deployments, and secure separation for hosted trading platforms. API & Bot Management: REST/WebSocket APIs for strategy control, trade monitoring, status queries, bot lifecycle (spawn/stop/clone/update) at scale. Config & Secrets Handling: Secure, dynamic config management (YAML, JSON), secrets vaults, role-based access, per-user exchange keys. Deployment: Production experience with Linux, bare metal, AWS, GCP, DigitalOcean, Hetzner, OVH; scaling to global audiences. I combine technical rigor, creative engineering, and a passion for clean, robust code to deliver trading solutions that are powerful, resilient, and user-friendly. Iām ready to build and run your next-generation crypto trading or automation platformāend-to-end, from strategy to cloud!

8.4
8.4
95%

Buenos Aires, Argentina
$35 USD per hour
"If human thinking fails, try anthropoid thinking. Fresh approach helps remove the obstacle." There used to be an ape-man in the photo: MoonWatcher. His bio takes us way back in time. I like to think of MoonWatcher as my oldest known ancestor. Had he lived in our times, he'd be well versed in the following: ā Database systems: ⢠Airtable: database design, automation and scripting. ⢠MS-Access, a sentimental favorite, handy and versatile like the ancient bone-made tools. ⢠other databases: MS-SQLserver ⢠MySQL ⢠PL/SQL ⢠DB2 SQL/400. ⢠lastly a set of forgotten, prehistoric tools: dBase, Borland, Paradox, FoxPro. ā Programming languages (in alphabetical order): ⢠C# ⢠Cobol, all its reincarnations ⢠IBM AS/400-iSeries, its languages: RPG, Cobol, CL, SQL/400, Query/400. ⢠Javascript ⢠SAP Datasphere, SAP Analytics Cloud ⢠Visual Basic, all its reincarnations As you've read up to this point, you may feel intrigued by MoonWatcher's origins and developments. Read the first chapters in Arthur Clarke's "2001, A Space Odyssey". The anthropoid's fears and amazements, his early attempts at understanding the world, are magistrally depicted.

7.4
7.4
95%

Karachi, Pakistan
$40 USD per hour
I'm Muhammad Ashar, a passionate digital creator specializing in immersive experiences across game development, website design, and both 2D and 3D art and animation. With years of hands-on experience, I take pride in delivering high-quality, creative solutions that bring ideas to life. Whether you're looking to build a captivating game, design a modern and responsive website, or create eye-catching visuals and animations, I offer end-to-end services tailored to your specific needs. My Services: Game Development: Designing and developing engaging games for various platforms. Website Development: Creating clean, responsive, and user-friendly websites. 2D & 3D Art: Crafting visually stunning artwork and models for games, media, and more. Animation: Producing dynamic animations that enhance storytelling and audience engagement. Graphic Design: Delivering impactful designs for branding, marketing, and digital media. I'm committed to blending creativity with technology to help bring your vision to life. Letās work together to turn your ideas into reality.

8.0
8.0
99%

Chennai, India
$60 USD per hour
Consultant with wide exposure. Domain exposure includes Logistics, Banking, Retail, Manufacturing. Process Improvement | Workflow optimization | AI implementations Top clients: Standard Chartered Bank, Weiss Rohlig Technologies Skilled in: OS: Windows Server, Linux(most flavors), Unix, Solaris & AS400 DB: Oracle, SQL Server, MySQL, Sybase, xBase, FileMaker & DB2 Web: IIS, Nginx, Apache AS: Tomcat, JBoss, WebSphere, Weblogic, GlassFish, Tuxedo, BroadVision, Node, Zend, .Net ERP/CRM: IFS Applications, SAP, Oracle Applications, Salesforce, JDA/Blue Yonder/Red Prairie, Fishbowl, Sage CMS: WebCenter, SharePoint, Experience Manager, FileNet, WordPress, Drupal BI: Power BI, Grafana, MicroStrategy, Oracle, BO Scripting:Shell script, PowerShell, VBScript, AutoIt Security frameworks: Palo Alto, Qualys, Tenable, Rapid7, Tripwire Development stacks: MEAN/MERN LAMP/WAMP J2EE .Net/Win32/PowerApps Django/Python Oracle Fusion, Apex & PL/SQL Clipper/xBase/FoxPro/QT/Harbour Mobile: Swift, Flutter, React, Ionic Big Data: Spark, Hadoop NoSQL: MongoDB, Cassandra In-Mem: Rethink, Redis, TimesTen Data Processing/BPM/ETL: Pentaho, Confluent, Ab Initio Blockchain & Virtualization: Desktop: Citrix, Remote Desktop, X11SSH Server: VMware,Hyper-V, Solaris Zone, Virtuozzo, VirtualBox Para/Cloud: Azure, AWS, GCP, Xen,UML, Terraform Containerization & Microservices: Docker, Kubernetes, Consul VOIP: Asterisk, Kamailio

6.2
6.2
96%

Carrizal, Venezuela
$12 USD per hour
== ESPAĆOL == Soy diseƱador web fullstack con mĆ”s de 10 aƱos de experiencia en el Ć”rea. Mi objetivo es proveerle los mejores servicios y soluciones adecuados para todos sus problemas y necesidades, agregando valor a sus ideas == ENGLISH == I'm a senior Web Designer 10-years experience. My goal is to provide the best services and solutions suitable for all my clients problems and needs, adding values to your ideas HABILIDADES / MY KEY SKILLS - Web Consultancy & Website Maintenance. - Website responsive Designing - CMS Website Development - PHP Application Development - JavaScript, HTML5, Css3, Jquery, XML. - ERP, CRM, Dolibarr. - CodeIgniter, WordPress, WooCommerce, OpenCart, ShopiFy. - MySql, MariDB, MS Sql Sever, Oracle. Payment Getways Paypal, Straal, RedSys, AstroPay, PayU, ComproPago, e-Payouts,, MercadoPago Others Integrations DHL WS, HotelBeds WS, Custom WS, WebService SOAP, Rest Api Integraciones AFIP (ARGENTINA - Administración Federal de Ingresos PĆŗblicos) Integraciones DIAN (COLOMBIA - Dirección de impuestos y aduanas Nacionales)

6.0
6.0
97%

Maipu, Argentina
$20 USD per hour
## BIO I'm programmer ,expert on oracle PL/SQL ,FORM 6i a Report, ORACLE APEX also I m expert on delphi , firebase Database, ## Area of Expertise Oracle, PL/SQl, Oracle Form, Oracle Report, Delphi, PALM, PocketStudio ,ORACLE DBA,Firebird,Sql Server,Database,SQL,Web Services,SQl Server, ORACLE APEX I have several years working with legacy database migrating to oracle

4.5
4.5
100%

Barataria, Trinidad and Tobago
$20 USD per hour
I have a Bachelor's degree with a Major in Computer Science and over 10 years experience in web development. Specializing in JavaScript, AJAX, HTML, CSS, PHP and MySql I also work with ibm midrange (sqlrpgle, cl, dspf, java), profound ui Rich Displays pages, smart pages, insure90 etc.

5.7
5.7
96%

Bangalore, India
$30 USD per hour
Mac has several years of experience in the Information Technology industry providing complex business solutions. His experience includes Architecture and Application design and development, Infrastructure Assessment and Support, Corporate Training in over 50 topics. Mac is a Sun Certified Programmer for Java 2, and a Certified Lotus Developer. Currently the core technical person in a software development company focused in the design and development of complex software applications using Microsoft .Net, Java/J2EE & IBM technologies, primarily Lotus Domino, WebSphere and DB2. Mac has engaged in projects using technologies such as Java, J2EE, Lotus Domino/Notes, MQ Series, and J2EE on IBM WebSphere / BEA WebLogic / IPlanet on various flavors of Unix including extensively on IBM AIX and Sun Solaris, to deliver solutions to a wide range of firms within the manufacturing, distribution, media/entertainment, insurance, telecommunication, and financial industries. He has also worked in Portal software such as the IBM Websphere Portal Server. He has assisted IBM Lotus Partner companies with determining a migration plan from Lotus Domino to the Lotus Workplace product set, including the usage of Lotus Workplace Web Content Management. Provided consultancy service to a leading IT company for a Weblogic Integration project involving interaction with a US based team. Consultancy included current system assessment, new system architecture proposal, design & system documentation, knowledge transfer to project team and training of key project members. Driving the development of 2 products based on Lotus / Java. Architecture, Design and Development for a JMX enabled portal for administration of a telecom switch. Mac also has interest in learning, speaking and transcribing Japanese/Korean and other languages.
An AS400 and iSeries developer is a specialist who designs, codes, and maintains business applications on IBM's midrange platform ā now known as IBM i ā using languages such as RPG, CL, and COBOL alongside DB2 for i. These developers keep mission-critical ERP, finance, manufacturing, and logistics systems running on hardware that powers a significant share of global enterprise workloads.
An AS400 iSeries developer builds and supports the green-screen and modernized applications that handle order processing, inventory, payroll, billing, and supply chain operations for enterprises running on IBM Power servers. They write new programs, refactor legacy logic, optimize DB2 queries, and integrate the platform with web services, mobile front-ends, and cloud systems.
The commercial value is straightforward. Many companies have decades of business rules embedded in RPG and COBOL code on IBM i, and that code processes high transaction volumes with stability the business depends on. A skilled iSeries developer protects that investment, modernizes it where it makes sense, and keeps the platform connected to modern toolchains.
iSeries development work covers a wide range of tasks, from low-level program changes to full modernization initiatives. Typical deliverables include:
An experienced AS400 developer is fluent across the IBM i toolchain and the languages that dominate the platform. Look for working knowledge of:
The platform is concentrated in industries with heavy transactional workloads and long-lived business systems. iSeries developers are commonly hired by:
Strong iSeries developers combine deep platform knowledge with the ability to bridge legacy code and modern architectures. When reviewing profiles, look for years of hands-on RPG and DB2 for i experience, exposure to ILE concepts and service programs, and evidence of modernization or integration projects. Portfolios should reference specific ERP environments, modernization frameworks, or integration patterns rather than generic claims.
Useful interview questions to copy and use:
IBM i is a specialized platform, and the talent pool is smaller than in mainstream web development ā which makes reach matter. Freelancer.com gives you access to a global community of AS400 and iSeries developers, including senior RPG engineers, ILE specialists, DB2 for i experts, and modernization consultants who have worked across JD Edwards, BPCS, Infor, and custom green-screen systems. Profiles include verified ratings, completed project history, and portfolio samples so you can assess fit before you commit. Clients set their own budgets and receive competitive bids, and Milestone Payments protect funds until agreed deliverables are accepted.
Hiring on IBM i requires a clear brief because the platform spans many sub-skills ā RPG coding, DB2 tuning, ERP customization, and modernization are not interchangeable. The steps below help you write a brief that attracts the right specialists, evaluate their proposals, and award with confidence.
The quality of bids you receive is shaped almost entirely by how clearly you describe the work. For an AS400 project, that means naming the languages, the IBM i release level, the ERP or application involved, and the specific deliverables you expect. Head to the
Bids on a specialist platform like IBM i are short proposals, not just price quotes. A strong proposal will show the developer has read your brief, understood whether you are dealing with legacy RPG III or modern free-format ILE, and proposed an approach that fits. Use Freelancer.com chat to ask clarifying questions before shortlisting.
The final decision combines proposal strength with hard evidence on the freelancer's profile. For IBM i work, look for consistency across multiple completed projects rather than a single impressive example, and pay attention to written reviews from clients in similar industries.
They all refer to the same IBM midrange platform across different eras. AS/400 was the original 1988 brand, later renamed iSeries, then System i, and now IBM i ā the operating system that runs on IBM Power servers. Most developers use the terms interchangeably when describing their experience.
Yes. Many clients post fixed-scope work such as a single RPG program rewrite, a DB2 for i performance audit, a green-screen modernization proof of concept, or an API integration. You can also hire on an ongoing basis for production support and enhancements.
If you are maintaining or extending existing logic, an RPG and CL developer is usually enough. If you are converting green-screen applications to web or mobile, integrating with cloud systems, or migrating off DB2 for i, look for someone with documented experience in modernization frameworks like Profound UI or LANSA, plus REST API and web stack skills.
Small program changes and bug fixes can be completed in days, while larger ERP customizations or modernization phases run for weeks or months. Timelines depend on code complexity, the quality of existing documentation, and how much testing the business requires before release.
A freelance iSeries developer is often the right choice for focused enhancements, support, or specialist input on a defined deliverable. Agencies make more sense when you need a multi-disciplinary team for a long modernization program. Freelancer.com supports both ā you can engage an individual or assemble a small team of specialists.

Freelancer Enterprise
Use our workforce of 89.5 million to help your business achieve more.

Freelancer API
Why hire people when you can simply integrate our talented cloud workforce instead?
Post a project today and get bids from talented freelancers
Get some inspiration from AS400 & iSeries projects

Website Design.
$540 USD in 7 days.

App Design.
$100 USD in 1 day.

Website.
$430 USD in 1 day.

Website Design.
$140 USD in 13 days.

App Design.
$200 USD in 19 days.

Website.
$150 USD in 13 days.

Website.
$240 USD in 1 day.

Website.
$100 USD in 1 day.
Millions of users, from small businesses to large enterprises, entrepreneurs to startups, use Freelancer to turn their ideas into reality.
89.5M
89.5M
Registered Users
25.8M
25.8M
Total Jobs Posted