AeroLeads people directory · profile

John Opincar, Jr. Email & Phone Number

Staff Software Engineer at BlackLine
Location: Greater Houston, United States, United States 4 work roles 3 schools
1 work email found @blackline.com 4 phones found area 480 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email j****@blackline.com
Direct phone (480) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
BlackLine
Role
Staff Software Engineer
Location
Greater Houston, United States, United States
Company size
501 employees

Who is John Opincar, Jr.? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

John Opincar, Jr. is listed as Staff Software Engineer at BlackLine, a company with 501 employees, based in Greater Houston, United States, United States. AeroLeads shows a work email signal at blackline.com, phone signal with area code 480, and a matched LinkedIn profile for John Opincar, Jr..

John Opincar, Jr. previously worked as Senior Software Engineer at Olive and Lead Software Engineer at Wex. John Opincar, Jr. holds Ba, Plan Ii from The University Of Texas At Austin.

Company email context

Email format at BlackLine

This section adds company-level context without repeating John Opincar, Jr.'s masked contact details.

*@blackline.com
71% confidence

AeroLeads found 1 current-domain work email signal for John Opincar, Jr.. Compare company email patterns before reaching out.

View email format View company profile Management contacts
Profile bio

About John Opincar, Jr.

Senior/Lead developer with extensive experience designing, building, and supporting highly scalable applications. Excels at design collaboration and documentation, microservice/API design, database design, performance monitoring and optimization, troubleshooting in complex environments, and interfacing with important clients and external partners.Recent Expertise: Payments, Microservices and API design, C#, Node.js/TypeScript, SQL (most flavors), DynamoDB, Terraform, CDK, GitLab CI/CD, AWS Serverless, Docker

Listed skills include .Net, Soa, Web Services, Data Modeling, and 37 others.

Current workplace

John Opincar, Jr.'s current company

Company context helps verify the profile and gives searchers a useful next step.

BlackLine
Blackline
Staff Software Engineer
Woodland Hills, CA
Website
blackline.com
Employees
501
AeroLeads page
Company profile
View company profile Email format
4 roles · 28 years

John Opincar, Jr. work experience

A career timeline built from the work history available for this profile.

Staff Software Engineer

Current
Blackline

Woodland Hills, CA, US

Feb 2023 - Present

Senior Software Engineer

Olive

Columbus, OH, US

2021 - 2022 ~1 yr

Lead Software Engineer

Wex

Portland, Maine, US

2007 - 2021 ~14 yrs
Team & coworkers

Colleagues at BlackLine

Other employees you can reach at blackline.com. View company contacts for 501 employees →

DG Daniel G. Daniel G. Colleague at Blackline Los Angeles, California, United States, United States View → HC Heather Cassano Heather Cassano Colleague at Blackline Alexandria, Virginia, United States, United States View → AD Anthony Diaz Anthony Diaz Colleague at Blackline Los Angeles, California, United States, United States View → EZ Eric Zellner Eric Zellner Colleague at Blackline Los Angeles Metropolitan Area, United States, United States View → SW Sheilesha Willis, Ph.D., Acc Sheilesha Willis, Ph.D., Acc Colleague at Blackline Los Angeles, California, United States, United States View → AM Apeksha Mehta Apeksha Mehta Colleague at Blackline Dublin, California, United States, United States View → JW Jaclyn Winningham (Deanda) Jaclyn Winningham (Deanda) Colleague at Blackline Los Angeles, California, United States, United States View → KF Kenneth Fritz Kenneth Fritz Colleague at Blackline Batavia, Illinois, United States, United States View → JS James See James See Colleague at Blackline Lexington, Kentucky, United States, United States View → WS William St. John William St. John Colleague at Blackline Los Angeles, California, United States, United States View →
3 education records

John Opincar, Jr. education

Ba, Plan Ii

The University Of Texas At Austin

Bs, Computer Science

The University Of Texas At Austin

Education record

Westfield High School
FAQ

Frequently asked questions about John Opincar, Jr.

Quick answers generated from the profile data available on this page.

What company does John Opincar, Jr. work for?

John Opincar, Jr. works for BlackLine.

What is John Opincar, Jr.'s role at BlackLine?

John Opincar, Jr. is listed as Staff Software Engineer at BlackLine.

What is John Opincar, Jr.'s email address?

AeroLeads has found 1 work email signal at @blackline.com for John Opincar, Jr. at BlackLine.

What is John Opincar, Jr.'s phone number?

AeroLeads has found 4 phone signal(s) with area code 480 for John Opincar, Jr. at BlackLine.

Where is John Opincar, Jr. based?

John Opincar, Jr. is based in Greater Houston, United States, United States while working with BlackLine.

What companies has John Opincar, Jr. worked for?

John Opincar, Jr. has worked for Blackline, Olive, Wex, and Duke Energy Corporation.

Who are John Opincar, Jr.'s colleagues at BlackLine?

John Opincar, Jr.'s colleagues at BlackLine include Daniel G., Heather Cassano, Anthony Diaz, Eric Zellner, and Sheilesha Willis, Ph.D., Acc.

How can I contact John Opincar, Jr.?

You can use AeroLeads to view verified contact signals for John Opincar, Jr. at BlackLine, including work email, phone, and LinkedIn data when available.

What schools did John Opincar, Jr. attend?

John Opincar, Jr. holds Ba, Plan Ii from The University Of Texas At Austin.

What skills is John Opincar, Jr. known for?

John Opincar, Jr. is listed with skills including .Net, Soa, Web Services, Data Modeling, Agile Methodologies, Sdlc, Software Design, and Asp.Net.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.