# Hari Krishna K

Hari Krishna K is a remote worker on Himalayas, Lead SAP ABAP Backend Developer at Valero, based in United States.

Source: https://himalayas.app/@harikrishnak1

```text
SAP ABAP developer at Valero building RAP-based S/4HANA fleet and voyage scheduling applications.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | United States |
| Authorized to work in | United States |
| Salary expectations | 125k+ USD |
| Job categories | SAP ABAP Developer, SAP Technical Lead, SAP Application Developer |
| Skills | SAP ABAP, SAP S 4HANA, SAP CML, Mortgage Lending, Loan Servicing, ABAP RESTful Application Programming Model (RAP), CDS Views, AMDP Procedures, OData, SAP Fiori, SAP UI5, SAP Integration Suite, SAP Cloud Integration, SAP PI PO, SAP FI |
| LinkedIn | https://linkedin.com/in/kolliharikrishna |

## About

```text
At Valero, I developed RAP-based S/4HANA applications for vehicle master maintenance, fleet availability, voyage requirements, and load/discharge scheduling. I also implemented transactional business objects and AMDP-based data processing for scheduling and fleet data.

At Fiserv, I architected e-invoicing and e-payment solutions for five LATAM countries, integrating SAP S/4HANA with tax-authority stamping and third-party platforms. I also developed financial document workflows and OData services for electronic transactions.

At IBM, I worked on S/4HANA implementation and support projects for Nestlé, Steelcase, and Al Abdulghani Motors, including TMS enhancements, production support, and upgrade compatibility work. Earlier, at Wipro Limited, I developed BRF+ carrier-determination applications and SAP Fiori apps for Apple.

My work also includes SAP FS-CML, mortgage lending, and loan servicing application development, along with SAP integration, data migration, and production support. I hold the SAP Certified Development Specialist – ABAP for SAP HANA 2.0 certification.
```

## Experience

### Lead SAP ABAP Backend Developer (current)

Valero. Jul 2026 - Present

```text
Developed RAP-based Vehicle Master Maintenance applications and implemented managed/unmanaged RAP business objects. Enhanced O4NM, OIJNOMH, OIJNOM_LDS, and OIJPEG functionality for Fleet Availability and scheduling.
```

Skills: RAP-Programming, CDS-Views, AMDP-Procedures, OData, SAP-UI5, ABAP, S4Hana, SAP-Clean-Core-Principles, Debugging, Performance-Optimization

### SAP ABAP Technical Lead – Senior Application Developer

[Fiserv](https://himalayas.app/companies/fiserv). Jul 2025 - Jun 2026

```text
Architected end-to-end e-invoicing and e-payment solutions for five LATAM countries using XML transformations and proxy generation. Developed OData V2/V4 services using ABAP RAP and integrated with third-party platforms.
```

Skills: SAP-S-4HANA, ABAP, RAP-Programming, OData, CDS-Views, AMDP-Procedures, XML-Mappings, Proxy, IDOC, EDI, SAP-BTP, Clean-Core, FIORI, Financial-Processing

### SAP ABAP Technical Lead – Senior Application Developer

[IBM](https://himalayas.app/companies/ibm-com). Apr 2024 - May 2025

```text
Served as senior technical lead coordinating with global stakeholders, leading GTS enhancements and custom Adobe Forms development. Developed 11 custom Process Controller Strategies for TMS and supported ECC-to-S/4HANA upgrades.
```

Skills: ABAP, S4Hana, TMS, BOPF, Adobe-Forms, ATC, SPAU-SPDD, SAP-Notes, Debugging, Root-Cause-Analysis, Technical-Leadership

### SAP ABAP Technical Lead

[Wipro Limited](https://himalayas.app/companies/wipro-limited). Mar 2022 - Apr 2024

```text
Designed and built BRF+ applications for carrier determination logic across four global regions. Developed SAP Fiori applications with CRUDQ operations via OData services.
```

Skills: BRF+, TMS, ABAP, OData, FIORI, SAP-Web-IDE, Debugging, Root-Cause-Analysis, Incident-Management

### SAP ABAP Senior Consultant

[Hitachi Vantara](https://himalayas.app/companies/hitachi-vantara). Mar 2021 - Mar 2022

```text
Designed and deployed a custom FV60 non-PO AP Workflow and developed inbound/outbound EDI IDoc processing. Developed custom OData services and implemented enhancements using User Exits, BAdIs, and VOFM routines.
```

Skills: ABAP, Workflow-Management, FIPP, IDOC, EDI, OData, User-Exits, BADI'S, VOFM, PPF

### SAP Data Migration Consultant

[Syniti / BOA](https://himalayas.app/companies/syniti). Nov 2020 - Feb 2021

```text
Executed non-SAP to S/4HANA data migration using BOA DSP and LTMC, covering Fixed Assets, Vendor, and Customer data loads. Optimized data extraction, transformation, and load processes.
```

Skills: BOA-DSP, SAP-LTMC, Data-Migration, S4Hana, Data-Profiling, DCS

### SAP ABAP Consultant

[Deloitte Consulting](https://himalayas.app/companies/deloitte-ireland). Dec 2013 - Nov 2020

```text
Seven-year tenure spanning five projects including SWIFT global production support, Deloitte in-house S/4HANA migration, National Grid IS-Utilities, DART Container BODS migration, and MITAC Aerospace. Resolved Adobe Forms defects across six countries and developed custom interfaces and forms.
```

Skills: ABAP, Adobe-Forms, OData, FIORI, Workflow-Management, BRF+, BADI'S, User-Exits, SAP-Enhancement-Framework, BODS, LSMW, BDC, BAPI, RFC, IDOC, IS-U, Treasury, PTP, ALM

## Education

### Acharya Nagarjuna University

Bachelor of Technology, Information Technology. 2006 - 2010

```text
Bachelor of Technology in Information Technology from Acharya Nagarjuna University, India, completed in 2010.
```

## Tech stack

- PostgreSQL
- Oracle
- Eclipse
- Azure DevOps
- Jira
- JavaScript
- HTML5
- XML
- OData
- Git
- ServiceNow
- REST APIs

To contact Hari Krishna, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

## People also viewed

- [Faizan Saleem](https://himalayas.app/@faizansaleem): Senior Software Engineer, John Deere
- [Feroz Shaik](https://himalayas.app/@ferozshaik): SAP Consultant, Walmart
- [GURUCHARAN PRATHIVADHI BHAYANKARA](https://himalayas.app/@gurucharanprathivadh): SAP Developer, Doublene
- [Aroushi Jain](https://himalayas.app/@aroushijain): Senior SAP ABAP Developer, Gwinnett County Government
- [Likhita Sai](https://himalayas.app/@likhitasai): SAP ABAP/HANA Consultant, InfoKeys Inc
- [Rammohan Polu](https://himalayas.app/@rammohanpolu): SAP ABAP Consultant, CareFusion Corporation
- [Abinash Kumar](https://himalayas.app/@abinashkumar1): Teach Lead – Projects, EPS, Primo Brands
- [Kranthikumar Rebba](https://himalayas.app/@kranthikumarrebba): Senior ABAP Hana Consultant, Terumo Medical Corporation
- [Nicholas Russon](https://himalayas.app/@nicholasrusson): Senior SAP ABAP Developer, Apple
- [Gopichand K](https://himalayas.app/@gopichandk): SAP S/4HANA Technical Consultant, Johnson & Johnson