Onsite _Middleware Support Engineer_ Marlboro, MA

Themesoft Inc; Marlboro (MA); On-site; USD 90,000 - 130,000; Part time

Job summary

The Themesoft Inc team in Marlboro, MA is seeking a Middleware Engineer on a 6-12+ month contract. The role requires hands-on work in IBM Integration Bus, DataPower, MQ, and related middleware technologies, with on-site expectations and scheduled hybrid days.

You will own production issue resolution, RCA reporting, and documentation while coordinating with IT and business stakeholders. Responsibilities include maintaining middleware processes, creating XML/JSON schemas, and ensuring secure

Qualifications

• Must-have middleware skills with IBM Integration Bus (IIB) and DataPower
• Experience with MQ, MFT, APIC and DataPower Gateway technologies
• Familiarity with MPGW, web service proxies, and firewalls
• Proficient in JSON/XML/JSON-to-XML/JSON-to-SOAP transformations using XSLT
• Ability to create XML/JSON schemas and WSDLs; perform Datapower restarts and end-to-end validation
• Knowledge of certificate/key management for Front Side Handlers

Responsibilities

• Resolve complex production issues and provide RCA with urgency
• Develop and maintain middleware processes and procedures
• Collaborate with Business and IT to deliver Middleware Development
• Provide production support and act as backup for project development when needed

Skills

IIB

Datapower

MQ

MFT

APIC

DataPower Gateway

MPGW

XML/JSON transformation

XSLT

XML Schema

Tools

Datapower

MQ

APIC

Job description

Onsite _Middleware Support Engineer_ Marlboro, MA

Job Id : OOJ - 27458

Posted Date : 10/14/2026

Experience : -

Job Type : Contractual

Location : MARLBORO

Overview :

Job Title: Middleware Engineer
Location: Marlboro, MA / Hybrid (Tues, Weds, Thurs onsite)
Work Arrangement: Onsite
Employment Type: Contract
Contract Duration: 6-12+ Months

Responsibilities

• Ability to resolve different type of Job abends (including data issue, code bypass) in quick time.
• Take ownership of Complex Production issues and provide RCA for the same.
• Develop and maintain process and procedure documentation.
• Independently work on Middleware Development liaising with Business and IT.

Must-Have

• IBM Integration Bus (IIB)
• Datapower
• MQ
• MFT
• APIC
• Data Power B2B Gateway
• Multi-protocol gateways (MPGW), web service proxies, firewalls
• Familiarity with JSON to XML, XML to JSON, and JSON to SOAP transformations using XSLT's
• Creating XML schema, JSON schema and development using XSLT and configuration using DataPower.
• Knowledgeable in creation of XSLT, XSD & WSDL
• Able to perform Datapower restart and end to end validation.
• Should have knowledge in changing certificate/keys and password update for Front Side Handlers
• Provide development, production support, maintenance and technical consulting for software components & infrastructure emergency support our components and applications, also covering as a backup for project development and support when team members are on Off.
• Should have good knowledge in creating SUD and SOPs.

Work Authorization

• Applicants must be legally authorized to work in the United States.

Equal Employment Opportunity

Themesoft Inc is an Equal Employment Opportunity employer. We consider qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other status protected by applicable federal, state, or local law.