**EXHIBIT
      31.1**


**CERTIFICATION
      PURSUANT TO SECTION 302**


**OF
      THE SARBANES-OXLEY ACT OF 2002**





I,
      Philip
      Septimus, the President and Director of Sentra Consulting Corp. (“Sentra”),
      certify that:





1.  I
      have
      reviewed this Quarterly Report on Form 10-QSB of Sentra for the quarter ended
      June 30, 2007;





2. Based
      on
      my knowledge, this report does not contain any untrue statement of a material
      fact or omit to state a material fact necessary to make the statements made,
      in
      light of the circumstances under which such statements were made, not misleading
      with respect to the period covered by this report;





3. Based
      on
      my knowledge, the financial statements, and other financial information included
      in this report, fairly present in all material respects the financial condition,
      results of operations and cash flows of Sentra as of, and for, the periods
      presented in this report;





4. Sentra’s
      other certifying officer(s) and I are responsible for establishing and
      maintaining disclosure controls and procedures (as defined in Exchange Act
      Rules
      13a-15(e) and 15d-15(e)) and internal control over financial reporting (as
      defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for Sentra and have:





a. Designed
      such disclosure controls and procedures, or caused such disclosure controls
      and
      procedures to be designed under our supervision, to ensure that material
      information relating to Sentra, including its consolidated subsidiaries, is
      made
      known to us by others within those entities, particularly during the period
      in
      which this report is being prepared;





b. Designed
      such internal control over financial reporting, or caused such internal control
      over financial reporting to be designed under our supervision, to provide
      reasonable assurance regarding the reliability of financial reporting and the
      preparation of financial statements for external purposes in accordance with
      generally accepted accounting principles;





c. Evaluated
      the effectiveness of Sentra’s disclosure controls and procedures and presented
      in this report our conclusions about the effectiveness of the disclosure
      controls and procedures, as of the end of the period covered by this report
      based on such evaluation; and





d. Disclosed
      in this report any change in Sentra's internal control over financial reporting
      that occurred during Sentra's most recent fiscal quarter (Sentra's fourth fiscal
      quarter in the case of an annual report) that has materially affected, or is
      reasonably likely to materially affect, Sentra's internal control over financial
      reporting; and





5. Sentra's
      other certifying officer(s) and I have disclosed, based on our most recent
      evaluation of internal control over financial reporting, to Sentra's auditors
      and the audit committee of Sentra's board of directors (or persons performing
      the equivalent functions):





a. All
      significant deficiencies and material weaknesses in the design or operation
      of
      internal control over financial reporting which are reasonably likely to
      adversely affect Sentra's ability to record, process, summarize and report
      financial information; and





b. Any
      fraud, whether or not material, that involves management or other employees
      who
      have a significant role in Sentra's internal control over financial reporting.










Date:
      August 14, 2007




Signature:
                /s/
                    Philip SeptimusName:
                Philip
                  SeptimusTitle:
                President
                  and Director(Principal
                    Executive Officer)